Code for Downloading from website problem - ASP.NET Discussion Boards

Re: ASP 3.0 Question: Chart and Graphs suggestion

Anurag Gandhi24-Jul-11 21:28

24-Jul-11 21:28

You can use google API.
click here[^] and here[^]

This is client side api call and will work for asp as well as asp.net.

Anurag Gandhi.
http://www.gandhisoft.com
Life is a computer program and every one is the programmer of his own life.
My latest article: Group GridView Data

Trouble with UpdatePanel and OnClick event attribute

Dominick Marciano20-Jul-11 9:54

Dominick Marciano

20-Jul-11 9:54

Below is some code for an update panel I'm using

<asp:LoginView ID="LoginView" runat="server">
                    <LoggedInTemplate>
                        <asp:LoginName ID="name" runat="server" />
                        <asp:UpdatePanel ID="LoginPanel" runat="server">
                            <ContentTemplate>
                                <asp:Label ID="lblClassCode" runat="server" Text="Class Code:" Font-Size="Smaller" Font-Bold="true" visible="false"/>
                                <asp:TextBox ID="txtClassCode" runat="server" Text="" Font-Size="Smaller" visible="false" />
                                <asp:Button ID="cmdClassCode" runat="server" Text="Enter" Font-Size="Smaller" OnClick="cmdClassCode_Click" visible="false" />
                                <asp:Literal ID="lblPrivateClassMessage" runat="server" Text="" Visible="false"/>
                                <asp:ImageButton ID="imgAddToCart" runat="server" OnClick="imgAddToCart_Click" ImageUrl="~/Images/AddToCart.png" Height="40px" Width="119px" Visible="false"/>
                            </ContentTemplate>
                            <Triggers>
                                <asp:AsyncPostBackTrigger ControlID="cmdClassCode" EventName="cmdClassCode_Clicked" />
                            </Triggers>
                        </asp:UpdatePanel>                    
                    </LoggedInTemplate>
                    <AnonymousTemplate>
                        <asp:Login ID="MemberLogin" runat="server"  
                        Font-Size="10px"
                        CreateUserText="Create a new user..."
                        CreateUserUrl="~/Members/Register.aspx"
                        PasswordRecoveryUrl="~/Members/RecoverPassword.aspx"
                        UserNameLabelText="E-mail address:" Height="104px"/>
                    </AnonymousTemplate>
                </asp:LoginView>

Now I had to use the OnClick attribute for the cmdClassCode control because it was in the LoginView. When I try to view this page I get the following error message:

Could not find an event named 'cmdClassCode_Clicked' on associated control 'cmdClassCode' for the trigger in UpdatePanel 'LoginPanel'.

I'm assuming this has something to do with the face that I'm using the OnClick attribute instead of a normal handle. Any suggestions on how to get the cmdClassCode button to trigger the update panel?

Thanks in advance.

Related to GridView

Gautam Vishwakarma20-Jul-11 5:10

Gautam Vishwakarma

20-Jul-11 5:10

I want to manipulate data by using Gridview. please tell how can i do this

Re: Related to GridView

R. Giskard Reventlov20-Jul-11 6:58

R. Giskard Reventlov

20-Jul-11 6:58

That's a poorly framed question: you need to be far nmore specific and tell us a) what research have you already done? b) what have you already tried for yourself and c) how did that work out? Then and only then, ask a question related to an issue in YOUR code. Do not ask for complete solutions as the answer is probably going to offend you.

"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair.
nils illegitimus carborundum

me, me, me

Re: Related to GridView

Prasanta_Prince20-Jul-11 19:47

Prasanta_Prince

20-Jul-11 19:47

This example shows update,delete and Nested Gridview. Hope this can help you.

Gridview inside Gridview in ASP.NET C#[^]

how can i pass values by using post not get method?

buffering8320-Jul-11 5:00

buffering83

20-Jul-11 5:00

if i click "A" button, do something and move other page.
and when move other page, i want to pass string value.
only i know that ressponse.redirect("test.aspx?userEmail=test@gmail.com");
but if i do that, url address bar show everything.
How can i pass values to other page without show values like get method.

example)
something do~~~(like db handleing)
ressponse.redirect("test.aspx?userEmail=test@gmail.com"); <-- this is get method

hi

My english is a little.
anyway, nice to meet you~~
and give me your advice anytime~

session variables

David Mujica20-Jul-11 5:11

David Mujica

20-Jul-11 5:11

See if this meets your needs ...

http://msdn.microsoft.com/en-us/library/ms178581.aspx[^]

Code for Downloading from website problem

kbalias19-Jul-11 23:22

kbalias

19-Jul-11 23:22

Hello

I am using Visual Web Developer 2010 Express (with C# as code-behind) to develop a website.

On one of the pages the user can create a report of the data and I would like the user to be able to download the data as a .csv file.

I have written the method to download the data, but the HTML of the page is appended to the data in the downloaded file.

When searching for solutions people say the Response.Clear() and Response.End() must be used in the code, but I have that and it still appends the HTML.

The download method is:

public void ExportCSV(DataTable data, string fileName)
{
    try
    {
        HttpContext context = HttpContext.Current;

        context.Response.Clear();
        context.Response.ContentType = "text/csv";
        context.Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName + ".csv");

        //write column header names
        for (int i = 0; i < data.Columns.Count - 1; i++)
        {
            if (i > 0)
            {
                context.Response.Write(",");
            }
            context.Response.Write(data.Columns[i].ColumnName);
        }
        context.Response.Write(Environment.NewLine);

        //Write data
        foreach (DataRow row in data.Rows)
        {

            for (int i = 0; i < data.Columns.Count - 1; i++)
            {
                if (i > 0)
                {
                    context.Response.Write(",");
                }
                context.Response.Write(row[i]);
            }
            context.Response.Write(Environment.NewLine);
        }

        context.Response.End();
    }
    catch (Exception ex)
    {
        throw ex;
    }
}

Here is part of the file that is downloaded:

HospNumber,LastName,FirstName,DOB,Gender,RaceName,DateDied,AgeAtDeath,HospShort,RTID,
RTNum,RegistrationDate,AgeAtRegDate,OSurvival,Last seen,Next appt,Firm,Clinic,Organ,Part,Histology,Intent,Modality,StGp1,StGp2,T,N,M,Study - Other
90000000,Temp,,18/04/1955 12:00:00 AM,,,,,GSH,61227,2010.1103,14/01/2010 12:00:00 AM,,-1,,,,,,,,,,,,,,,
90001245,TestWeb,,23/02/1983 12:00:00 AM,,,23/06/2011 12:00:00 AM,028,04,00,GSH,,,,,,,,,,,,,,,,,,,,
90003214,TestWeb,,18/01/1983 12:00:00 AM,,,,,GEO,,,,,,,,,,,,,,,,,,,,
900223341,TestWeb,,23/03/1983 12:00:00 AM,,,,,GEO,,,,,,,,,,,,,,,,,,,,
90023541,TestWeb,,23/02/1983 12:00:00 AM,,,,,GEO,,,,,,,,,,,,,,,,,,,,
<script type="text/javascript" language="javascript">alert('Thread was being aborted.');</script>

<!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><title>

</title><link href="../Styles/Site.css" rel="stylesheet" type="text/css" />
</head>
<body>
    <form method="post" action="../Error.aspx" id="Form2">

Any help will be greatly appreciated. Thank you.

Kobus

Re: Code for Downloading from website problem [modified]

Viral Upadhyay20-Jul-11 1:50

Viral Upadhyay

20-Jul-11 1:50

it look like some think crashing while you get data and as a result it is giving you this problem.
Check all the value from DB.

Viral
My Blog
Save Our Tigers

Re: Code for Downloading from website problem

Not Active20-Jul-11 2:07

Not Active

20-Jul-11 2:07

You should not be using Response.End. Rather use Flush and/or CompleteRequest

"This method is provided only for compatibility with ASP—that is, for compatibility with COM-based Web-programming technology that preceded ASP.NET. If you want to jump ahead to the EndRequest event and send a response to the client, call CompleteRequest() instead."
http://msdn.microsoft.com/en-us/library/system.web.httpresponse.end.aspx[^]

I know the language. I've read a book. - _Madmatt

Re: Code for Downloading from website problem

Prasanta_Prince20-Jul-11 19:49

Prasanta_Prince

20-Jul-11 19:49

File Upload and Download in ASP.NET[^]

This link shows Upload and download.

Re: Code for Downloading from website problem

kbalias21-Jul-11 20:35

kbalias

21-Jul-11 20:35

Hi

I managed to get this to work. I originally had the code in a try...catch block. When I removed the try...catch it worked perfectly. I cannot explain that.

Thanks for all the replies.

Kobus

publish asp.net-silverlight-WCF in local iis

yesu prakash19-Jul-11 21:05

yesu prakash

19-Jul-11 21:05

Hi,
I am a beginner in asp.net-silverlight-WCF, i create a small database application using silverlight and WCF. I publish it in the local iis. Its working fine in my local machine but the WCF service is not working in the other machines is the same network.
How to publish it in the local network. I am also a beginner in web service too.

Thank You
YPKI

Re: publish asp.net-silverlight-WCF in local iis

Viral Upadhyay20-Jul-11 1:58

Viral Upadhyay

20-Jul-11 1:58

Hi Prakash,
The question you have ask is related to WCF, here in CP we already have forum for WCF questions.
If you ask question there you will get better answer there.

Regarding you question, WCF are little bit tricky customer. Check the URL and endpoint URL you are using, that may be case for not working WCF.

Viral
My Blog
Save Our Tigers

How to get Gridview to respond to Select command on Blackberry Browser (Curve 8530)

David Mujica19-Jul-11 4:58

David Mujica

19-Jul-11 4:58

I'm trying to develop a Blackberry friendly web page which has aGridview on the page.

I have tried making the row "Selectable" (select hyperlink is shown) and adding command button as one of the columns in the grid. Neither one of those methods respond to a click by the Blackberry Browser.

Does anyone have a solution for this ?

Re: How to get Gridview to respond to Select command on Blackberry Browser (Curve 8530)

Anurag Gandhi19-Jul-11 20:40

Anurag Gandhi

19-Jul-11 20:40

I am not sure if i am answering this but...

David Mujica wrote:
Blackberry friendly web page which has aGridview

GridView is bulky. I would suggest to use some repeater control, or something light weight and implement the required functionality using JavaScript. Smile | :)

Anurag Gandhi.
http://www.gandhisoft.com
Life is a computer program and every one is the programmer of his own life.
My latest article: Group GridView Data

Jquery code is not working in IE [modified]

meghamaharshi19-Jul-11 1:16

meghamaharshi

19-Jul-11 1:16

Hello Everybody

Following code working fine in FF but not working in IE please help me out

function ManageQuantityDropDown() {
if ($("#<%=grdCustAllotedQuantity.ClientID%> table[id*='MainContent_grdCustAllotedQuantity_rdbCustomerRegistrationType'] input:radio:checked").val() == "0") {
$("#<%=grdCustAllotedQuantity.ClientID%> select[id*='MainContent_grdCustAllotedQuantity_ddlQunatity']").attr('disabled', true);
$("#<%=grdCustAllotedQuantity.ClientID%> select[id*='MainContent_grdCustAllotedQuantity_ddlQunatity']").attr('selectedIndex', 1);
$("#<%=hdnAllotedQuantity.ClientID%>").val($("#<%=grdCustAllotedQuantity.ClientID%> select[id*='MainContent_grdCustAllotedQuantity_ddlQunatity']").val());
}
else {
$("#<%=grdCustAllotedQuantity.ClientID%> select[id*='MainContent_grdCustAllotedQuantity_ddlQunatity']").removeAttr('disabled');
}

}

Thanks

modified on Tuesday, July 19, 2011 7:36 AM

Re: Jquery code is not working in IE

Shameel19-Jul-11 4:49

Shameel

19-Jul-11 4:49

meghamaharshi wrote:
not working in IE

Explain your problem in detail. "Not working" is not a good explanation. Does it give you an error? What is it supposed to do?

Re: Jquery code is not working in IE

Not Active19-Jul-11 7:49

Not Active

19-Jul-11 7:49

Format your snippet. Use the "code block" toolbar item.

I know the language. I've read a book. - _Madmatt

ASP.NET Login Control always logged in

Dominick Marciano18-Jul-11 18:18

Dominick Marciano

18-Jul-11 18:18

I'm creating a website where I'm using a LoginView control. The code for the control is:

<asp:LoginView ID="LoginView" runat="server">
                    <LoggedInTemplate>
                        <asp:Label ID="lblPrivateClassMessage" runat="server" Text="" Font-Bold="true" Visible="false"></asp:Label>
                        <asp:ImageButton ID="imgAddToCart" runat="server" ImageUrl="~/Images/AddToCart.png" Height="40px" Width="119px" Visible="false"/>
                    </LoggedInTemplate>
                    <AnonymousTemplate>
                        <asp:Login ID="MemberLogin" runat="server"  
                        CreateUserText="Create a new user..."
                        CreateUserUrl="~/Members/Register.aspx"
                        PasswordRecoveryUrl="~/Members/RecoverPassword.aspx"
                        UserNameLabelText="E-mail address:"/>
                    </AnonymousTemplate>
                </asp:LoginView>

I haven't created any code to handle registration or logging in yet, but the controls within the LoggedInTemplate are always being displayed. So I decided to add a LoginName control within the LoggedInTemplate to determine what user name the system is saying I'm logged in as. It displays my corporate login name; in the format MYCOMPANY\UserName. Since the website is interactive with our SQL server to manage products and such I am connected to our corporate network through VPN. If I disconnect from VPN I can't test and debug my website, but if I'm connected the website always has me logged in?

What can I do so when I first go to the web site pages, it does not have me logged in so I can test logging in, logging out, etc. The interesting thing is that on a previous site that I made I didn't have this problem, albeit I did not use a LoginView anywhere on the site. Any ideas, suggestions, etc. Thanks in advance for any help you can provide; it is very much appreciated as my company wants this site done in about 2 weeks.

Re: ASP.NET Login Control always logged in

Dominick Marciano18-Jul-11 18:44

Dominick Marciano

18-Jul-11 18:44

Nevermind...I figured out the issue. In my web.config file I had the authentication mode set to "Windows" as opposed to "Forms".

Help with page.header.controls.add() throw NullReferenceException. [modified]

josehidalgor18-Jul-11 12:44

josehidalgor

18-Jul-11 12:44

Hi, Im working with this method. The problem is that Im creating a new page and then try to assing the Header.Title but it will throw and exception of NullReferenceException.

public static string RenderControl(string controlName)
{
Page page = new Page();
page.Header.Title = "New Page";
page.Controls.Add(header);
UserControl userControl = (UserControl)page.LoadControl(controlName);
userControl.EnableViewState = false;
HtmlForm form = new HtmlForm();
form.Controls.Add(userControl);
page.Controls.Add(form);

StringWriter textWriter = new StringWriter();
HttpContext.Current.Server.Execute(page, textWriter, false);
return textWriter.ToString();
}

Same thing if I try to add

HtmlLink myCSS = new HtmlLink();
myCSS.Href = "~/somecss1.css";
myCSS.Attributes.Add("rel", "stylesheet");
myCSS.Attributes.Add("type", "text/css");
Page.Header.Controls.Add(myCSS);

I try to set a new header but It says

page.Header
(Gets the document header for the page if the head element is defined with a runat=server in the page declaration.

but when you see the new Page() constructor it says <No Parameters> Cant set the header with attr runat=server when initialize the page.

Regards

modified on Monday, July 18, 2011 6:52 PM

Re: Help with page.header.controls.add() throw NullReferenceException.

Parwej Ahamad19-Jul-11 8:33

Parwej Ahamad

19-Jul-11 8:33

I haven't implemented it ever but I think issue is with your code try this way:

//page.Header.Title = "New Page";
//page.Controls.Add(header);

HtmlHead head = new HtmlHead("head")
HtmlTitle title   = HtmlTitle()
title.Text = "New Page";
head.Controls.Add(title)
page.Controls.Add(header);

Parwej Ahamad
ahamad.parwej@gmail.com

Gridview To Export Excel sheet

vishnukamath18-Jul-11 0:07

vishnukamath

18-Jul-11 0:07

Hi,

I tried with below code for export gridview to Excell and it is adding empty row for every record . Please suggest me better way to do this.

My Code:
--------------

response.Clear();
response.ClearContent();
response.Buffer = true;
response.ContentType = "application/vnd.ms-excel";
response.Charset = "";
//--code to display multiline value in same cell in excel-------------------
string header = @"

";
response.Write(header);
response.AddHeader("mso-data-placement", "same-cell");
response.AddHeader("content-disposition", new StringBuilder("attachment; filename=").Append(fileName).Append(".xls").ToString());
}
System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);

gvControl.RenderControl(oHtmlTextWriter);
// response.Write(oStringWriter.ToString().Replace("bordercolor=\"white\"", String.Empty));
response.Write(Regex.Replace(oStringWriter.ToString().Replace("bordercolor=\"white\"", String.Empty).ToString(), @"(<a[^>]*>)|
()", " ", RegexOptions.IgnoreCase));
response.End();

---------------------------

Regards,
Vishnu.

Re: Gridview To Export Excel sheet

RaviRanjanKr18-Jul-11 1:23

RaviRanjanKr

18-Jul-11 1:23

Please Format your Code using "Pre" tag.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.