ASP.NET

Re: Referencing User Control Attributes in Page Code Behind

2-Dec-11 7:32

Well, you use css to change the background color of the panel.

But I don't when you want to change the color.

On postback, in the server, or when creating the control

If you want to remove the existing css
MyPnl.Style.Remove(HtmlTextWriterStyle.backgroundColor)

If you want to add a style
MyPnl.Style.Add(HtmlTextWriterStyle.backgroundColor, "#dfdfdf")

janetb992-Dec-11 7:53

janetb99

2-Dec-11 7:53

Sorry, that won't work for me if I can't reference the control to change the style. Understand the problem now? Let me try and be a little more precise, maybe that will help. I really think it's something to do with master/child since I was able to successfully reference one when not using the master.

XML

Master:
<%@ Master Language="VB" CodeFile="SSLmaster.master.vb" Inherits="master" EnableTheming="true"  %>
<body>
<form id="form1" runat="server" enableviewstate="true"><asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server"></asp:ContentPlaceHolder>
yahda, yahda, yahda...

Child:
<%@ Page Title="yahda" Theme="SSL" Language="VB" MasterPageFile="~/inc/SSLmaster.master" AutoEventWireup="false" CodeFile="zdetail1.aspx.vb" Inherits="calendar_zdetail1" %>
<%@ Register Src="~/inc/ceSteps.ascx" TagName="ceSteps" TagPrefix="uc1" %>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

UserControl:
<%@ Control Language="VB" AutoEventWireup="false" CodeFile="ceSteps.ascx.vb" Inherits="inc_ceSteps" %>
<asp:Panel runat="server" ID="Panel1" >&nbsp;Step 1&nbsp;</asp:Panel>

CodeBehind of Child:
First Stab (successful on page without Master):
Dim myPnl As Panel = CType(CType(FindControl("ceSteps"), UserControl).FindControl("pnlStage1"), Panel)
myPnl.BackColor = System.Drawing.ColorTranslator.FromHtml("#dfdfdf")

Second Stab (and many more variations)
Dim myConPH As ContentPlaceHolder
myConPH = CType(FindControl("SSLmaster_ContentPlaceHolder1"), ContentPlaceHolder)
Dim myPnl As Panel = CType(CType(myConPH.FindControl("ceSteps"), UserControl).FindControl("pnlStage1"), Panel)
myPnl.BackColor = System.Drawing.ColorTranslator.FromHtml("#dfdfdf")

Re: Referencing User Control Attributes in Page Code Behind

jkirkerx2-Dec-11 8:49

Re: Referencing User Control Attributes in Page Code Behind

2-Dec-11 8:49

I'm looking at your markup code, I understand the markup code,

But I have no idea what your trying to achieve. What the steps are, the purpose of changing the color, when and where.

My interpretation is that you want to find the asp.net ID of the panel control in the child webform, make a handle to it, and change the background color of the panel.

Not the Answer but here's how it works::

When adding a master page, the id of the control will be prefixed with CT_100_ or CT100_
That's the only difference between the 2 scenarios. MasterPage will also start to auto ID your controls, if you don't assign a ID manually. In other words, when you master page, asp.net will automatically fix all your control id's so it can find and track the controls, and disregards your need to find them. Every control has to have a unique ID, and no one can be the same.

So myPnl becomes CT_100_myPnl if you assign the ID atribute. If you don't assign the ID attribute, asp.net will assign a senquential auto naming ID code to the control object, and find control will never find it.

Naming Practices:
When naming a control in a user control, you can use ID = [ID] & "_myPnl", which produces CT_100_ceSteps_myPnl
This will stop the auto id's of your controls, so you actually are in charge of naming your objects.

Diagnostics:
So look at the html that was created by the server in the browsers source, in both with and without master page, and write down the control id or each one. And put that exact name in find control. Oh, ever the placeholder name will change as well.

I haven't used find control in years, and I abandoned the use of it, and have forgotten how to use it in master pages. Over the years I learned how to access any object on the page, at the right time and place, so that's not an issue for me anymore.

RichardGrimmer5-Dec-11 5:37

RichardGrimmer

5-Dec-11 5:37

The problem is that UserControl has no pn1Stage1 member...

In the first line, you're specifying that myCtrl is of type UserControl. In order to access a specific property of YOUR user control, you need a variable of that type...something like...

Dim myCtrl as MyControlType = CType(FindControl("ceSteps", MyControlType))

The trick is that FindControl returns a Control type, which you then cast to the correct type.

C# has already designed away most of the tedium of C++.

Re: Referencing User Control Attributes in Page Code Behind

janetb996-Dec-11 8:40

janetb99

6-Dec-11 8:40

Thanks for the reply, Richard. Tried it, but no go. I still think it has something to do with those pesky Master pages. Again, the one I've been using without Master Pages works fine... Got the same error.

Dim myCtrl As UserControl = CType(FindControl("ceSteps1"), UserControl)
Dim myPnl As Panel = CType(myCtrl.FindControl("pnlStage1"), Panel)
myPnl.BackColor = Drawing.Color.Azure

Re: Referencing User Control Attributes in Page Code Behind

janetb996-Dec-11 9:06

janetb99

6-Dec-11 9:06

I found this, and I kinda get what they're saying, but I can't get it to work either.

tip18843

Protected MyCtl As Panel
Private Sub Page_Init(ByVal sender As Object, ByVal e As EventArgs) Handles MyBase.Init
 MyCtl = DirectCast(FindControl("pnlStage1"), Panel)
End Sub
Protected Sub btnStep2b_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnStep2b.Click
 MyCtl.BackColor = Drawing.Color.Azure
End Sub

convert detailsview control to formview control

classy_dog1-Dec-11 8:43

classy_dog

1-Dec-11 8:43

Since I am having so many problems with using a detailsview 2010 control, I am going to convert my logic to use a formview control instead. Thus can you tell me if there is a referenceon on how to convert and/or copy detailsview code to formsview code?

Basically I am going to take the itemtemplate and editiemtemplates and hopefully use them in the formwview control.

I will place the update and clear buttons outside of the formsview control but on the webform page. Thus to be able to update the data on the buttons outside of the the formsview would I use a updateitem method or some other method?

How to Create a Dynamic Questionnaire

Vimalsoft(Pty) Ltd1-Dec-11 3:49

Vimalsoft(Pty) Ltd

1-Dec-11 3:49

Good Day Fellows

i have a Dynamic Questionnaire that is created using dynamic data from the Database. My data in the Database contains the fields like

QuestionID - Primary key
Question - The Question Text
Answer - The Answer
Required - This is a Validation , i used this to enable the Required validator in asp.net
DataType - This is the Datatype, it can be a Heading also.
ReadOnly - This check if that Question is a Read-only , This happens most of the time , when it is a Calculated Field, meaning its values depends on other fields values.
Order - This is the order the Questions will appear
Section - This is the section, So the Questions are Grouped. Normaly in Page1 you will have Questions for Section 1.......
Deleted- This is a bit Field , its either 1 or 0 , 1 is active, so this helps be to Filter only active Questions
QuestionType- This is the Type of Control the Data should be Presented with, It can be a Dropdown ,checkbox or textbox..
QT_ID - There can be many Templates of the Question , this makes sure we use the Correct Template for the Questionnaire

So with this kind of Data , i want to use know , what asp.net Control can i use to achieve this.

Thanks

Vuyiswa Maseko,

Spoted in Daniweb-- Sorry to rant. I hate websites. They are just wierd. They don't behave like normal code.

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.com
vuyiswa[at]dotnetfunda.com
http://www.Dotnetfunda.com

The header and footer contents in master page are refreshing - Need help

Member 322226430-Nov-11 19:21

Re: The header and footer contents in master page are refreshing - Need help

30-Nov-11 19:21

Hi,
In master page i have header,menu,content placeholder and footer.On click of each menu items the header and footer are refreshing.i had enclosed the code and css file.

The header and footer must be fixed only the contents must change.Need help.

<%@ Master Language="C#" AutoEventWireup="true" CodeFile="Main.master.cs" Inherits="Main" %>

<%@ Register Src="~/Menu.ascx" TagName="HeaderMenu" TagPrefix="uc1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head id="Head1" runat="server">

<title>Untitled Page</title>


<link href="StyleSheet.css" rel="stylesheet" type="text/css" />

</head>

<body>

<form id="form1" runat="server">

<table border="0" cellspacing="0" cellpadding="0" width="100%" align="center">
           <%-- <tr>
                <td>
                    <table id="Table1" border="0" cellpadding="0" cellspacing="0">
                        <tr>
                            <td id="headerleft">
                                <img alt="left" src="Images/PortalBanner_Left.gif"/>
                            </td>
                            <td id="Td1" class="bannerimg">
                                <img alt="" src="Images/Logon_Header_Image_SCF3.jpg" style="width:450px;height:50px" />
                            </td>
                            <td id="headerright">
                                <img alt="right" src="Images/PortalBanner_right.gif" />
                            </td>
                        </tr>
                    </table>
                    <table class="bannerimg" border="0" width="100%">
                        <tr style="font-size:small; width: auto; ">
                            <td style="text-align: left; padding-left: 10px">
                                <asp:Label ID="lblWelcome" runat="server" Text="Welcome " CssClass="hrefClass"></asp:Label> 
                                <asp:Label ID="lblUser" runat="server" CssClass="hrefClass"></asp:Label>
                            </td>
                           
                            <td style="width: auto; text-align: right;">
                                <asp:LinkButton ID="lnHome" runat="server" class="hrefClass" CausesValidation="false" >Home</asp:LinkButton> 
                                
                                <asp:LinkButton ID="lnLogout" runat="server" class="hrefClass" 
                                    CausesValidation="false"  >Logout</asp:LinkButton>
                            </td>
                        </tr>
                    </table>
                    </td>
                    </tr>--%>
<div id="header">

<p><a href="http://blog.dampee.be/">Techspace</a>

<img src="Images/Logon_Header_Image_SCF3.jpg" alt=""/>


</p>


<span>About technology</span>

</div>

<tr>
<td colspan="3">
<div id="menu">

<uc1:HeaderMenu id="HeaderMenu1" runat="server"></uc1:HeaderMenu>

</div>
</td>
</tr>

<tr>
                <td colspan="3" style="vertical-align: top; height:600px; width: 100%; background-color: White;">
<div id="content">

 <div class="middle_blk">

<asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">

</asp:ContentPlaceHolder>

</div>

</div>

</td>
</tr>
</table>
<div id="footer">

<div class="footer_blk">

<div class="middle_blk">

<img src="Images/PoweredByASPNET.gif" alt="Powered by ASP.NET!" />

</div>

</div>

</div>

</form>

</body>

</html>

CSS

body{padding:0;margin:0;background:url(http://imgs1.2000shareware.com/contentbase/body_bg.gif) repeat-x;font:12px/18px Arial,Helvetica,sans-serif;color:#3a3e41}h1,h2,h3,h4,h5{font-weight:normal;text-align:center;font-family:Georgia,Arial,Helvetica,sans-serif}h1{margin:0 0 13px;font-size:17px;line-height:25px}h1.title{background:url(http://imgs1.2000shareware.com/contentbase/page_title.gif) no-repeat center bottom;padding:0 0 11px}h2{margin:0;font-size:19px;line-height:35px}h3{margin:0 0 13px;font-size:17px;line-height:25px}h3.title{background:url(http://imgs1.2000shareware.com/contentbase/page_title.gif) no-repeat center bottom;padding:0 0 11px}h4{font-size:13px;line-height:13px;font-family:Arial,Helvetica,sans-serif;text-align:left;margin:0 0 2px}p{margin:0 0 25px}a{text-decoration:none;color:#0058bc;outline:none}a:hover{text-decoration:underline;color:#cc2a7d}img{border-style: none;
    border-color: inherit;
    border-width: medium;
    height: 80px;
}ul,ol,dl{list-style:none;padding:0;margin:0}input,select,textarea{font:12px/18px Arial,Helvetica,sans-serif;color:#686f76}#wrapper{min-width:996px}#header{height:132px;padding-top:12px;background:url(http://imgs1.2000shareware.com/contentbase/header_bg.jpg) no-repeat center top}.middle_blk{width:996px;margin:0 auto}#header h1{float:left;margin:0 0 8px}#header h1 span{display:none}#header .search{width:189px;height:19px;float:right;margin-top:18px;padding:6px 11px 0 10px;background:url(http://imgs1.2000shareware.com/contentbase/search_blk.png) no-repeat}#header .search input{float:left;border:none;padding:0;width:160px;background:none}#header .search input.search_btn{float:right;width:14px;height:13px;background:url(http://imgs1.2000shareware.com/contentbase/search_btn.gif) no-repeat;cursor:pointer}#header ul li{float:left}#header ul li a{display:block;float:left;padding:3px 16px 0;height:38px;font:15px/35px Georgia,Arial,Helvetica,sans-serif;color:#000}#header ul li a:hover,#header ul li.active a{background-color:#cc2a7d;color:#fff;text-decoration:none}#content{background:url(http://imgs1.2000shareware.com/contentbase/content_bg.gif) repeat-x;padding:18px 0 4px;overflow:hidden}#content .col_left{width:210px;float:left}#content .topbox{background:url(http://imgs1.2000shareware.com/contentbase/col_top_box.gif) no-repeat}#content .topbox h2{background:url(http://imgs1.2000shareware.com/contentbase/col_box_title.gif) no-repeat center bottom;padding:14px 5px 4px;color:#cc2a7d}#content .cenbox{background:url(http://imgs1.2000shareware.com/contentbase/col_cen_box.gif) repeat-y;margin-bottom:11px}#content .botbox{background:url(http://imgs1.2000shareware.com/contentbase/col_bot_box.gif) no-repeat center bottom;padding:0 4px 9px}#content ul.categories{padding-top:3px}#content ul.categories li{background:url(http://imgs1.2000shareware.com/contentbase/category_tab.gif) no-repeat;padding:0 8px 8px 12px}#content ul.categories li a.title{float:left;height:25px;background:url(http://imgs1.2000shareware.com/contentbase/category_tab_title.gif) no-repeat 100% 0;padding-right:26px;color:#000;font-size:13px;font-weight:bold;line-height:30px}#content ul.categories li span.count{float:right;color:#686f76;line-height:30px}#content ul.categories li p{margin:0;clear:both;padding-top:2px;line-height:15px}#content ul.categories li.first{background:url(http://imgs1.2000shareware.com/contentbase/category_tab_first.gif) no-repeat}#content ul.categories li.first a.title{background-position:100% -25px}#content ul.categories li.last{background:url(http://imgs1.2000shareware.com/contentbase/category_tab_last.gif) no-repeat}#content .col_cen{width:544px;padding:0 15px;float:left}#content .col_cen .soft_list{overflow:hidden;padding:0 0 20px}#content .col_cen .soft_list .img_blk{float:left;width:40px}#content .col_cen .soft_list .desc{width:504px;float:right}#content .col_cen.big_pic .img_blk{width:150px}#content .col_cen.big_pic .desc{width:394px}#content .col_cen.numbers .img_blk{width:52px;padding:4px 0 0}#content .col_cen.numbers .img_blk strong{font-size:18px}#content .col_cen.numbers .desc{width:492px}#content .col_cen .soft_list .desc p{margin:0}#content .col_right{width:210px;float:right}#content ul.list{background:#fff url(http://imgs1.2000shareware.com/contentbase/col_box_last.gif) no-repeat left bottom;padding-bottom:10px}#content ul.list li{background:url(http://imgs1.2000shareware.com/contentbase/grey_dot.png) no-repeat 12px 10px;padding:0 7px 0 32px;border-bottom:1px solid #f0f3f6;border-top:none}#content ul.list li.last{border:none}#content ul.list li p{margin-bottom:5px}#content ul.list li a{line-height:25px}#content ul.new_press li{padding:4px 7px 4px 32px}#content ul.new_press li a{line-height:15px}#content p.breadcrumb{text-align:center;margin-bottom:20px}#content p.breadcrumb a{margin:0 5px}#content p.breadcrumb img{vertical-align:middle}#content p.btnblk{text-align:center;overflow:hidden;margin:22px 0 30px}#content p.btnblkNomar{text-align:center;overflow:hidden;margin:0}#content p.btnblk a.btn{float:none;display:inline-block;margin-right:15px}#content .tbl_info{width:260px;float:left;background:url(http://imgs1.2000shareware.com/contentbase/tbl_info_cen.gif) repeat-y;margin-bottom:35px}#content .tbl_top{background:url(http://imgs1.2000shareware.com/contentbase/tbl_info_top.gif) no-repeat}#content .tbl_bot{background:url(http://imgs1.2000shareware.com/contentbase/tbl_info_bot.gif) no-repeat left bottom;padding:0 1px}#content .softprew{float:left;margin:0 13px 5px 0}#content .tbl_top p{margin:0;border-bottom:1px solid #f0f3f6;line-height:30px;overflow:hidden}#content .tbl_top p span{float:left}#content .tbl_top p span.left{width:97px;padding-left:11px}#content .tbl_top p span.right{width:140px}#content .tbl_top p big{font-size:14px;color:#cc2a7d}#content .tab_mid p big{font-size:14px;color:#cc2a7d}#content .tbl_top p a{color:#3a3e41;text-decoration:underline}#content .tab_mid p a{color:#3a3e41;text-decoration:underline}#content p.softdesc{line-height:21px}#content .col_cen .pages{margin:10px 0 19px 0;float:left;width:100%;font-size:13px;line-height:13px}#content .col_cen .pages_left{font-weight:bold;float:left;margin:0 0 0 6px;display:inline}#content .col_cen .pages_left_btm{float:left;margin:0 0 0 6px}#content .col_cen .pages_right ul{float:right}#content .col_cen .pages_right ul li{display:inline;vertical-align:middle}#content .col_cen .pages_right ul li a,#content .col_cen .pages_right ul li a img,#content .col_cen .pages_right ul li span{padding:0 3px}#content .col_cen .pages_right ul li a:hover{color:#cc2a7d;text-decoration:underline}#content .col_cen .pages_right ul li span{color:#cc2a7d;font-weight:bold}#content .col_cen .pages_right img{vertical-align:middle}li.last{border:none}#content .col_cen .col_cen_box{width:507px;margin:7px 0 19px 6px;float:left}#content .col_cen .col_cen_box h4 a{font-weight:bold;font-size:13px;line-height:18px;color:#0058bc;margin-bottom:5px}#content .col_cen .col_cen_box h4 a:hover{color:#cc2a7d}#content .col_cen .col_cen_box span.date{font-weight:bold;color:#3a3e41}#content .col_cen .col_cen_box p{margin:5px 0;font-size:12px}#content .col_cen .col_cen_txt{float:left;margin:20px 0 0 0;width:100%}#content .col_cen .col_cen_txt p{margin:0 10px 30px 6px;font:12px/20px Arial,Helvetica,sans-serif;color:#686f76}#content .tab_top{background:url(http://imgs1.2000shareware.com/contentbase/table_top.png) no-repeat center top;width:535px;height:4px;float:left;font-size:1px}#content .tab_mid{background:url(http://imgs1.2000shareware.com/contentbase/table_mid.png) repeat-y center top;width:535px;float:left}#content .tab_mid p{border-bottom:1px solid #f0f3f6;line-height:30px;margin:0 auto;width:531px;overflow:hidden}#content .tab_mid p span{float:left}#content .tab_mid p span.left{padding-left:11px;width:97px}#content .tab_mid p span.left2{padding-left:11px;width:530px;background-color:#f9fafa}#content .tab_mid p span.right{padding-left:5px;width:410px}#content .tab_btm{background:url(http://imgs1.2000shareware.com/contentbase/table_btm.png) no-repeat center top;width:535px;height:4px;float:left}.footer_categories{background:#f0f3f6 url(http://imgs1.2000shareware.com/contentbase/footer_category_bg.gif) repeat-x;overflow:hidden;padding:10px 0}.footer_categories dl{width:190px;float:left}.footer_categories dt{font:15px/35px Georgia,Arial,Helvetica,sans-serif}.footer_categories dt a{color:#000}.footer_categories dl dd{background:url(http://imgs1.2000shareware.com/contentbase/grey_dot.png) no-repeat 0 7px;padding:0 0 0 20px;margin:0;line-height:20px}#footer{background:url(http://imgs1.2000shareware.com/contentbase/footer_bg.gif) repeat-x;font-size:11px;line-height:30px;color:#fff}#footer .footer_blk{background:#a62166 url(http://imgs1.2000shareware.com/contentbase/footer_blk.jpg) no-repeat center top;overflow:hidden}#footer p.copyright{float:left;margin:0;width:435px;line-height:normal;padding:8px 0 14px}#footer p.copyright.center{float:none;width:100%;text-align:center;line-height:14px;padding:0}#footer ul{float:left}#footer ul li{display:inline;margin-right:8px}#footer ul li a{color:#fff;margin-right:10px}#footer ul li a:hover{color:#fff;text-decoration:underline}a.btn,a.btn.pink{display:block;width:112px;height:29px;float:left;background-image:url(http://imgs1.2000shareware.com/contentbase/btn_bg.gif);background-position:0 0;background-repeat:no-repeat;text-transform:capitalize;font:15px/29px Georgia,Arial,Helvetica,sans-serif;color:#3a3e41}a.btn.pink{background-position:0 -29px;color:#fff}.clear{clear:both}.fleft{float:left!important}.fright{float:right!important}.nomar{margin:0!important}.acenter{text-align:center!important}.blue{color:#0058bc}.nobrd{border:none}#memo_message{background-color:#f0f3f6;border:1px solid #686f76}

Thanks
S.Guhananth

uspatel30-Nov-11 23:10

uspatel

30-Nov-11 23:10

A master page is just a common "template" that is used by different pages for the purpose of reusability.If you dont want refresh it ,you can use partially updation by update panel.
Ajax Update Panel.

or You can use instead of masterpage
use IFrame.

Re: The header and footer contents in master page are refreshing - Need help

jkirkerx1-Dec-11 11:29

Re: The header and footer contents in master page are refreshing - Need help

1-Dec-11 11:29

The master pages solves an old issue with classic asp, php, and just plain html in which developers wanted to create a consistent header and footer. So before in the old days, you had to sort of slip your header and footer file into your content file, or vice versus, I don't remember which.

if you place linkbuttons on your master page, when you click them they will generate a postback like they are suppose to. They are not refreshing, but are sending the form back to the server for processing.

Now with just plain html, you can get rid of the form tag, and the page will not postback, because there is no form data. But ASP.Net requires a form tag on all pages.

So if you want to confine the postback to just the content, wrap the content in an update panel, and make a trigger for each button you need to issue a small async postback to the server, in which only the content in the update panel will make the round trip to the server and back.

You can rid of the linkbuttons, for they are not needed, unless you need to calculate something before the action. Use a Hyperlink if you want to send to another page.

XML

<td style="width: auto; text-align: right;">
     <asp:Hyperlink ID="lnHome" runat="server" class="hrefClass">Home</asp:Hyperlink>&nbsp
     <asp:Hyperlink ID="lnLogout" runat="server" class="hrefClass">Logout</asp:Hyperlink>
</td>

<asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">
     <asp:updatepanel id="updatePanel_Content1" runat="server">
    <asp:contentTemplate>

    </asp:contentTemplate>
    // add a asyncpostback trigger
     </asp:updatepanel>
</asp:ContentPlaceHolder>

Member 32222641-Dec-11 23:38

Re: The header and footer contents in master page are refreshing - Need help

1-Dec-11 23:38

Hi,
If i place a header image and footer text the whole page refreshes on click of menu.How to resolve this.

Guhananth.S

jkirkerx2-Dec-11 6:23

Re: The header and footer contents in master page are refreshing - Need help

2-Dec-11 6:23

I need a more precise description. Click on what type of control, in what area of the page?

Member 32222645-Dec-11 19:06

5-Dec-11 19:06

Hi,
I have a master page.There i had added an user control ie Menu.ascx.I had placed a header image,then user control,then content placeholder ie Child page and footer.

On click ok menu or submenu,the whole page refreshers.

I want the header and footer to be fixed.How to implement that,I had tried always.

Suggest some url or working sample.

u can refer my code.

Thanks
S.Guhananth.

WCF message edit error

arnold0930-Nov-11 19:19

arnold09

30-Nov-11 19:19

Hi,

I used the following code to edit a wcf message using message inspector.

MemoryStream ms = new MemoryStream();
               Encoding encoding = Encoding.UTF8;
               XmlWriterSettings writerSettings = new XmlWriterSettings { Encoding = encoding };
               XmlDictionaryWriter writer = XmlDictionaryWriter.CreateTextWriter(ms); //CreateBinaryWriter(ms);
               message.WriteBodyContents(writer);
               writer.Flush();
               string messageBodyString = encoding.GetString(ms.ToArray());

               // change the message body
               messageBodyString = messageBodyString.Replace("<n1>100</n1>", "<n1>200</n1>");

               ms = new MemoryStream(encoding.GetBytes(messageBodyString));
               XmlReader bodyReader = XmlReader.Create(ms);
               Message originalMessage = message;
               message = Message.CreateMessage(originalMessage.Version, null, bodyReader);
               message.Headers.CopyHeadersFrom(originalMessage);

Actual body of the message was like

<s:Body u:Id="_0">

    <Add xmlns="http://Microsoft.Samples.AdvancedFilters">

      <n1>100</n1>

      <n2>15.99</n2>

    </Add>

  </s:Body>

I wanted to change the value in the

<n1>

tag from 100 to 200. But after executing the method

Message.CreateMessage(originalMessage.Version, null, bodyReader)

, the body is shown like

<s:Body>... stream ...</s:Body>

jkirkerx1-Dec-11 11:49

1-Dec-11 11:49

It is in my opinion that you going about the process backwards.

When working with xml, no matter what the packaging is, wsdl, etc, you have to build the framework needed to write the xml file, edit, update, add, delete elements and child elements first.

Then you need to write the code needed to read and write it to the disk drive.

Now memory streams come into play, with memory stream, you can create a brand new xml file, store it in a memory stream, and transmit it to another server, or just send it to another function without ever touching the disk drive. While in memory, you can stuff it into your xml editor, modify it, store it back in the memory stream, and send it back out.

I use xsd to create a model of my xml, and compile it into a class object using xsd.exe /classes /vb /sample.sml to create sample.vb.

Then I use XMLTextWriter, to load up the sample.vb. The class wires up the xml structure, so an edit is as simple as sample.n1 = 200

arnold092-Dec-11 0:45

arnold09

2-Dec-11 0:45

Can u give the code??

jkirkerx2-Dec-11 6:36

2-Dec-11 6:36

This is a xsd template. I write them in Liquid Studio, but now I can write them from scratch. This one is very simple. I don't export the xml as a memory stream, but I do hold the entire xml in server memory, and when done, I write it back to the disk drive. The xsd, xml, program code all matches together. This is the fastest xml in asp.net. It is capable of doing 10 transactions per second, and I have 1 complex file with over 20,000 records in it, that can update really fast. This is how you write xml for DHL Express, UPS, Chase Payment Tech, PayPal, and any other web service that requires XML. It may be very difficult to comprehend at first, but I did all the heavy lifting for you.

You can save this as Sale_Messenger.xsd

XML

<?xml version="1.0" encoding="utf-8" ?>
<!--Created with Liquid XML Studio - FREE Community Edition 7.1.6.1440 (http://www.liquid-technologies.com)-->
<xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="Sale_Messenger">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="1" maxOccurs="unbounded" name="Registered_Members">
          <xs:complexType>
            <xs:all>
              <xs:element name="Name" type="xs:string" />
              <xs:element name="EmailAddress" type="xs:string" />
            </xs:all>
          </xs:complexType>
        </xs:element>
      </xs:sequence>
      <xs:attribute name="Version" type="xs:string" />
      <xs:attribute name="CreationDate" type="xs:string" />
    </xs:complexType>
  </xs:element>
</xs:schema>

Now I run the xsd using LS, to confirm it makes a valid xml file.
Sale_Messenger.xml

XML

<?xml version="1.0" encoding="utf-8" ?>
- <!--  Created with Liquid XML Studio - FREE Community Edition 7.1.6.1440 (http://www.liquid-technologies.com)
  -->
- <Notification xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="C:\Sep-WSDLS\TransactionNotifications\TransactionNotifications.xsd" Version="string" CreationDate="string">
- <Registered_Members>
  <Name>string</Name>
  <EmailAddress>string</EmailAddress>
  </Registered_Members>
- <Registered_Members>
  <Name>string</Name>
  <EmailAddress>string</EmailAddress>
  </Registered_Members>
- <Registered_Members>
  <Name>string</Name>
  <EmailAddress>string</EmailAddress>
  </Registered_Members>
- <Registered_Members>
  <Name>string</Name>
  <EmailAddress>string</EmailAddress>
  </Registered_Members>
  </Notification>

So I have 2 files, Sales_Messenger.xsd, and Sales_Messenger.xml

I use xsd.exe on the xsd file - xsd.exe /vb /classes Sales_Messenger.xsd to produce a Sales_Messenger.vb class. Now I import the class into my project. You can find xsd.exe in VS 2005, 09, 10. Make the file and copy it into your project, include it.

Then I wrote a new class, to create a new file, update, and delete.

 Private Sub Add_NewMember()

        Dim FirstRecordFlag As Boolean = False

        Dim Success As Boolean = True
        Dim ContactName As String = False
        Dim SecureContactName As String = Nothing
        Dim Master_ContactName As String = Nothing
        Dim ContactEmailAddress As String = Nothing
        Dim SecureEmailAddress As String = Nothing

        ContactName = txt_Setup_SalesMessenger_SendName_Field.Text.Trim
        ContactEmailAddress = txt_Setup_SalesMessenger_SendEmail_Field.Text.Trim
        SecureContactName = ice5commerce.common.EncryptDecrypt.Encrypt(ContactName)
        SecureEmailAddress = ice5commerce.common.EncryptDecrypt.Encrypt(ContactEmailAddress)

        Dim DataLocation As String = Nothing
        DataLocation = Context.Server.MapPath("~/App_Data/CompanyInfo/Messenger.xml")

        'XML Data routines go here
        Dim request_serializer As New XmlSerializer(GetType(Sale_Messenger))
        AddHandler request_serializer.UnknownNode, AddressOf serializer_UnknownNode
        AddHandler request_serializer.UnknownAttribute, AddressOf serializer_UnknownAttribute

        Dim Reader As XmlTextReader = Nothing
        Dim XmlRequest As New Sale_Messenger

        Try
            Reader = New XmlTextReader(DataLocation)
            XmlRequest = CType(request_serializer.Deserialize(Reader), Sale_Messenger)
            Reader.Close()
            Reader = Nothing

        Catch ex As Exception
            FirstRecordFlag = True
        End Try

        Try
            If FirstRecordFlag = True Then
                Dim MyMembers_0 As Sale_MessengerRegistered_Members = New Sale_MessengerRegistered_Members
                MyMembers_0.Name = SecureContactName
                MyMembers_0.EmailAddress = SecureEmailAddress

                Dim MyMembers() As Sale_MessengerRegistered_Members = {MyMembers_0}

                'Now Lets Write out the file as a MemoryStream
                Dim serializer As XmlSerializer
                serializer = New XmlSerializer(GetType(Sale_Messenger))

                Dim XmlResponse As New Sale_Messenger
                XmlResponse.Version = "1.4.2"
                XmlResponse.CreationDate = DateTime.Now.ToString("yyyy-MM-dd")
                XmlResponse.Registered_Members = MyMembers

                'Now we have to write out a file for certification
                Dim response_serializer As XmlSerializer = Nothing
                response_serializer = New XmlSerializer(GetType(Sale_Messenger))

                Dim response_writer As StreamWriter = Nothing
                response_writer = New StreamWriter(DataLocation)
                response_serializer.Serialize(response_writer, XmlResponse)

                response_writer.Close()
                response_writer = Nothing

                request_serializer = Nothing
                serializer = Nothing

            Else
                Dim MyMembers() As Sale_MessengerRegistered_Members
                Dim MyMembers_Length As Integer = 0
                MyMembers = XmlRequest.Registered_Members
                MyMembers_Length = MyMembers.Length
                Array.Resize(MyMembers, MyMembers_Length + 1)

                MyMembers(MyMembers_Length) = New Sale_MessengerRegistered_Members
                MyMembers(MyMembers_Length).Name = SecureContactName
                MyMembers(MyMembers_Length).EmailAddress = SecureEmailAddress

                'Now Lets Write out the file as a MemoryStream
                Dim serializer As XmlSerializer
                serializer = New XmlSerializer(GetType(Sale_Messenger))

                Dim XmlResponse As New Sale_Messenger
                XmlResponse.Version = "1.4.2"
                XmlResponse.CreationDate = DateTime.Now.ToString("yyyy-MM-dd")
                XmlResponse.Registered_Members = MyMembers

                'Now we have to write out a file for certification
                Dim response_serializer As XmlSerializer = Nothing
                response_serializer = New XmlSerializer(GetType(Sale_Messenger))

                Dim response_writer As StreamWriter = Nothing
                response_writer = New StreamWriter(DataLocation)
                response_serializer.Serialize(response_writer, XmlResponse)

                response_writer.Close()
                response_writer = Nothing

                request_serializer = Nothing
                serializer = Nothing
            End If

        Catch ex As Exception
            Success = False
            Admin_Standard.Admin_PCI_Transction.Insert_PCI_Transaction("Display_SU_Sale_Messenger.vb", "MESSENGER", "ADD", ContactName, False)

        End Try

        If Success = True Then
            txt_Setup_SalesMessenger_SendEmail_Field.Text = ""
            txt_Setup_SalesMessenger_SendName_Field.Text = ""
            txt_Setup_SalesMessenger_SendEmailConfirm_Field.Text = ""
            Admin_Standard.Admin_PCI_Transction.Insert_PCI_Transaction("Display_SU_Sale_Messenger.vb", "MESSENGER", "ADD", ContactName, True)
        End If

    End Sub
    Private Sub Delete_Member()

        Dim Name As String = Nothing
        Dim SecureName As String = Nothing
        Dim DeleteName As String = Nothing
        Dim SecureDeleteName As String = Nothing

        If lb_SalesMessenger_ContactList_Field.SelectedIndex > -1 Then
            Dim idx As Integer = 0
            SecureDeleteName = lb_SalesMessenger_ContactList_Field.SelectedValue
            DeleteName = ice5commerce.common.EncryptDecrypt.Decrypt(SecureDeleteName)

            Dim DataLocation As String = Nothing
            DataLocation = Context.Server.MapPath("~/App_Data/CompanyInfo/Messenger.xml")

            'XML Data routines go here
            Dim request_serializer As New XmlSerializer(GetType(Sale_Messenger))
            AddHandler request_serializer.UnknownNode, AddressOf serializer_UnknownNode
            AddHandler request_serializer.UnknownAttribute, AddressOf serializer_UnknownAttribute

            Dim Reader As XmlTextReader = New XmlTextReader(DataLocation)
            Dim XmlRequest As New Sale_Messenger
            XmlRequest = CType(request_serializer.Deserialize(Reader), Sale_Messenger)
            Reader.Close()
            Reader = Nothing

            Dim MyMembers() As Sale_MessengerRegistered_Members
            Dim MyMembers_Length As Integer = 0
            MyMembers = XmlRequest.Registered_Members
            MyMembers_Length = MyMembers.Length

            Dim TestName As String = Nothing
            Dim SecureTestName As String = Nothing
            Dim SecureEmailAddress As String = Nothing
            Dim ResizeArray_Flag As Boolean = False

            Dim New_MyMembers() As Sale_MessengerRegistered_Members = MyMembers
            Array.Resize(New_MyMembers, MyMembers.Length - 1)
            Dim New_MyMembers_Length As Integer = New_MyMembers.Length
            Dim jdx As Integer = 0

            For idx = 0 To MyMembers_Length - 1
                SecureTestName = MyMembers(idx).Name
                SecureEmailAddress = MyMembers(idx).EmailAddress
                TestName = ice5commerce.common.EncryptDecrypt.Decrypt(SecureTestName)
                If Not String.Compare(TestName, DeleteName, True) = 0 Then
                    New_MyMembers(jdx).Name = SecureTestName
                    New_MyMembers(jdx).EmailAddress = SecureEmailAddress
                    jdx += 1
                End If
                idx += 1
            Next

            'Now Lets Write out the file as a MemoryStream
            Dim serializer As XmlSerializer
            serializer = New XmlSerializer(GetType(Sale_Messenger))

            Dim XmlResponse As New Sale_Messenger
            XmlResponse.Version = "1.4.2"
            XmlResponse.CreationDate = DateTime.Now.ToString("yyyy-MM-dd")
            XmlResponse.Registered_Members = New_MyMembers

            'Now we have to write out a file for certification
            Dim response_serializer As XmlSerializer = Nothing
            response_serializer = New XmlSerializer(GetType(Sale_Messenger))

            Dim response_writer As StreamWriter = Nothing
            response_writer = New StreamWriter(DataLocation)
            response_serializer.Serialize(response_writer, XmlResponse)

            response_writer.Close()
            response_writer = Nothing

            request_serializer = Nothing
            serializer = Nothing

            Load_ListBox()
            Admin_Standard.Admin_PCI_Transction.Insert_PCI_Transaction("Display_SU_Sale_Messenger.vb", "MESSENGER", "DELETE", DeleteName, True)
        End If

    End Sub
    Private Function Does_SalesMessenger_XMLExist() As Boolean

        Dim Context As HttpContext = HttpContext.Current

        Try
            Dim FileExist As Boolean = False
            Dim DataLocation As String = Nothing
            DataLocation = Context.Server.MapPath("~/App_Data/CompanyInfo/Messenger.xml")
            Dim f As New IO.FileInfo(DataLocation)
            If f.Exists = True Then
                FileExist = True
            Else
                FileExist = False
            End If

            f = Nothing
            Return FileExist

        Catch ex As Exception
            Record_Admin_Setup_Errors(ex.Message.ToString, ex.StackTrace.ToString)
        End Try

        Context = Nothing

    End Function
Protected Sub serializer_UnknownNode(ByVal sender As Object, ByVal e As XmlNodeEventArgs)

        Dim Context As HttpContext = HttpContext.Current
        'Context.Response.Write("Unknown Node:" & e.Name & ControlChars.Tab & e.Text)

    End Sub
    Protected Sub serializer_UnknownAttribute(ByVal sender As Object, ByVal e As XmlAttributeEventArgs)

        Dim Context As HttpContext = HttpContext.Current
        Dim attr As System.Xml.XmlAttribute = e.Attr
        'Context.Response.Write("Unknown attribute " & attr.Name & "='" & attr.Value & "'")

    End Sub

arnold095-Dec-11 18:55

arnold09

5-Dec-11 18:55

A little confused...i dont know whether this can be used in my case..if so which piece of code

modified 6-Dec-11 5:19am.

jkirkerx6-Dec-11 6:45

loginstatus control-sessions

6-Dec-11 6:45

I'll have to get back to you later tonight. Let me try to figure out exactly what your doing.

MalarGayu30-Nov-11 14:57

MalarGayu

30-Nov-11 14:57

hi friends

i am developing an asp.net project in c#.
In a master page i have a loginstatus control on the click of the control i have written:

protected void LoginStatus_LoggingOut(object sender, LoginCancelEventArgs e)
{
Session["UserId"] = "";
Session.Abandon();
Response.Redirect("../Login.aspx");

}

which redirects to the login page but from that page, if i type an aspx page in the site information tab where we used to type the webaddress it takes me to the page by the person name who just logged out

can anyone help me in this issue.

K.Gayathri

Member 322226430-Nov-11 19:48

30-Nov-11 19:48

Hi Gayathri,
Please give
Session.Clear();
Session.Abandon();
Session.RemoveAll();
Respons.Redirect("Test.aspx");

This will clear ur session used.

Guhananth.S

uspatel30-Nov-11 23:23

uspatel

30-Nov-11 23:23

try these lines on page load of every restricted page

if (Session["UserId"]==null)
        {
            Response.Redirect("Login.aspx");
        }

and try

Session["UserId"] = null;
  Session.Abandon();
  Response.Redirect("../Login.aspx");

coded0071-Dec-11 2:21

coded007

1-Dec-11 2:21

MalarGayu wrote:
protected void LoginStatus_LoggingOut(object sender, LoginCancelEventArgs e)
            {
                  Session["UserId"] = "";
                  Session.Abandon();
                  Response.Redirect("../Login.aspx");

            }

There is no need of

MalarGayu wrote:
Session["UserId"] = "";

You can directly use

MalarGayu wrote:
Session.Abandon();

it will clear all variables of session and more over please use

Server.Transfer("");

inseted of

Response.Redirect("")