HtmlInputHidden in a datagrid loses it's value after postback [modified] - ASP.NET Discussion Boards

Re: PDF

Ernest Laurentin15-May-08 4:28

Ernest Laurentin

15-May-08 4:28

Get a toolkit...there are several and some free ones depending on what you want.

God bless,
Ernest Laurentin

Third post

leckey15-May-08 4:29

leckey

15-May-08 4:29

Third time asking basically the same question.

Shhhhh.....
http://craptasticnation.blogspot.com/[^]

how to create a session for a loging user?

sandy005315-May-08 2:48

sandy0053

15-May-08 2:48

i am trying to create a session.but getting failed.when i enter username and password to the text boxes and as i click on login button.the member's page appears. but when clicks on logout button it comes to login page.if i copy the url of member's page and again paste the url from login page then members page again appearing. how to avoid this problem?
how to create a session for a particular user?
i want that after log out the member can't go back,and if we paste the url of member's page from login page it should not redirected.
thanks

sandeep

Re: how to create a session for a loging user?

Sandeep Kumar15-May-08 3:05

Sandeep Kumar

15-May-08 3:05

Hi,

Inorder to solve your problem you need to do follow the below steps.

1)on sucess full login before redirecting to members page keep the username in session.
2)on page load of members page check for the session contain some value..
if it contains some value then the use is a logged in user else if it is null redirect user to login page.
3)on clicking logout clear the session so that after clicking if user copy pastes that members page link also he will be redirected to login page has you cleared session.

Regards,
Sandeep Kumar.V

Re: how to create a session for a loging user?

eyeseetee15-May-08 3:16

eyeseetee

15-May-08 3:16

Make sure that when you are testing if you are using the same browser session to logout the first user else their details will remain until you log them out.

Try the asp.net custom login control with memebership

check this out:

http://aspnet.4guysfromrolla.com/articles/120705-1.aspx

A simple way to store a user's session is to store their username in the session

PDF component

Imthu15-May-08 2:48

Imthu

15-May-08 2:48

hai all,

I tried generating Dynamic PDF using itextSharp component.. when i opened the solution file .. i am getting this error:

"A project with an Output Type of Class Library cannot be started directly.In order to debug this project, add an executable project to this solution which references the library project. Set the executable project as the startup project."

plz help..thx in advance!

with Regards,
Imthiyas Ahamed.A

Re: PDF component

J a a n s15-May-08 4:53

J a a n s

15-May-08 4:53

Imthu wrote:
plz help..thx in advance!

Do you want us to help you in finding a non IT job?

*jaans

HtmlInputHidden in a datagrid loses it's value after postback [modified]

thomasa15-May-08 2:35

thomasa

15-May-08 2:35

I have a datagrid that contains an HtmlInputHidden, something like:

<asp:datagrid id="dgCurrency" runat="server" CssClass="grid" AllowPaging="False" CellPadding="0"<br />
                                GridLines="Vertical" AutoGenerateColumns="False" ShowFooter="false" ><br />
                                                                <Columns>	<br />
                                    <asp:TemplateColumn HeaderText="ISO kode" HeaderStyle-HorizontalAlign="Left" ItemStyle-Width="150px"><br />
                                        <ItemStyle HorizontalAlign="Left" VerticalAlign="Top"></ItemStyle><br />
                                        <ItemTemplate><br />
                                            <asp:Label id="lblISOCode" runat="server" CssClass="tbStyle1"><br />
                                                <%#DataBinder.Eval(Container.DataItem, "strISOCode").ToString()%>						                        <br />
                                            </asp:Label><br />
                                            <input type="hidden" runat="server" id="inCurrencyID" value='<%#DataBinder.Eval(Container.DataItem, "lngCurrencyID").ToString()%>' />	<br />
                                        </ItemTemplate><br />
                                    </asp:TemplateColumn><br />
...

Where the inCurrencyID is my HtmlInputHidden.

At the first time my page loads, I add a DataView to the dgCurrency datasource.
When I push a button the first time, the inCurrencyID has it's value, as in:

foreach (DataGridItem dgi in dgCurrency.Items)<br />
                {<br />
                    inCurrencyID = (HtmlInputHidden)dgi.FindControl("inCurrencyID");<br />
<br />
                    int lngCurrencyID = int.Parse(inCurrencyID.Value);<br />
...

After this I don't databind the dgCurrency to a new datasource, I just leave it as it is.

Now the next time I push the same button, it has now lost it's value????
The same goes for the label lblISOCode.

The strange thing is that I also have an TextBox in the DataGrid, and that control stil have it's Text.

Dose anyone know why, or is there another hidden fild that I can use that dosen't lose it's value on a PostBack without a databind()?

Thanks
Thomas

modified on Thursday, May 15, 2008 9:47 AM

Re: HtmlInputHidden in a datagrid loses it's value after postback

TheWirelessGuy15-May-08 9:09

TheWirelessGuy

15-May-08 9:09

Possibly enableviewstate flag needs to be set to true.

You are using a standard html input item, rather than a dotnet control. This is ok since you set the runat server attribute. You may also want to set the enableviewstate="true" attribute as well. Not sure if this solves it, but worth a try.

An alternative would be to use an 'asp:label' tag and set it's visibility to false. This gives you a fully qualified dotnet control, yet is not displayed to the user.

Steve

How to fech records from Dataset

sjs4u15-May-08 2:05

sjs4u

15-May-08 2:05

hi,

I have 100 records in DataSet. I have one button. When I Click that button I want to fetch 1-10 records from DataSet.

When again I click the button then I want 11-20 records from that Dataset. How can I do?

Thanks

Re: How to fech records from Dataset

eyeseetee15-May-08 3:12

eyeseetee

15-May-08 3:12

Check this out

http://aspnet.4guysfromrolla.com/articles/091003-1.aspx

message box problem in code behind

Pankaj Garg15-May-08 1:33

Pankaj Garg

15-May-08 1:33

i am using the followig code to display the message box using the code behind.
Response.Write("<script>alert('Hi');</script>");
The problem is , using this code , the background color of the same window gets white.

If you have an apple & I have an apple and we exchange our apples, then each of us will still have only one apple but if you have an idea & I have an idea and we exchange our ideas, then each of us will have two ideas!

Re: message box problem in code behind

SamRST15-May-08 1:58

SamRST

15-May-08 1:58

its bcose, its a windows modal dialog message box. If u want Other, you should create a custom message box with div tag.

Re: message box problem in code behind

Pankaj Garg15-May-08 2:05

Pankaj Garg

15-May-08 2:05

provide an example please.

Remote Scripting with IFRAME

Piyush Vardhan Singh15-May-08 1:30

Piyush Vardhan Singh

15-May-08 1:30

hi friend i am using Remote Scripting with IFRAME. There are two page one is Client.aspx and Server.Aspx.

Client.aspx Contains:-
(script type = "javas")
function GetDate(msg)
{
alert(Msg);
}
(script)

(
name="RSIFrame"
style="width:0px; height:0px; border: 0px"
src="blank.html">(/iframe>)

<b>
(server contains :-</b>

(script type="text/javascript">
window.parent.GetDate('<%=request.servervariables("SERVER_SOFTWARE")%>');
br mode="hold" />

(body>
<form id="form1" runat="server" target="RSIFrame">
<div>
<input type="text" name="whatever" />
<asp:button id="Button1" runat="server" text="Button" />
</div>
/body)

<b>It's Work Properly when Server and client page o same System. if Server page open On different system and client page open deferent system then its not communicate(Its not Work Properly). any body have solotion of this problem...
ans Link Which i follow:-</b>

<a href="http://developer.apple.com/internet/webcontent/iframe.html">http://developer.apple.com/internet/webcontent/iframe.html</a>[<a href="http://developer.apple.com/internet/webcontent/iframe.html" target="_blank" title="New Window">^</a>]

<div class="ForumSig">Piyush Vardhan Singh
p_vardhan14@rediffmail.com
http://holyschoolofvaranasi.blogspot.com
http://holytravelsofvaranasi.blogspot.com

</div></form>

Re: Remote Scripting with IFRAME

TheWirelessGuy15-May-08 9:15

TheWirelessGuy

15-May-08 9:15

Sounds like a "cross site scripting" problem, which is not allowed. See this article. It has information about this, including iframe usage.

http://www.codeproject.com/KB/scripting/Cross_site_scripting.aspx[^]

Steve

iTextObject control in crystal report

Pankaj Garg15-May-08 1:25

Pankaj Garg

15-May-08 1:25

I have a iTextObject control in the crystal reports, which is similar to the lable control in the aspx page.
can i hide the itextobject type control in the crystal report at run time.

Re: iTextObject control in crystal report

SamRST15-May-08 1:59

SamRST

15-May-08 1:59

Sure, create a variable object for that Itextbox in the code and make tat invisible.
hope works

Re: iTextObject control in crystal report

Pankaj Garg15-May-08 2:07

Pankaj Garg

15-May-08 2:07

how should i find this control?

Image button in Gridview

danasegaranea15-May-08 1:17

danasegaranea

15-May-08 1:17

Hi All,
I am adding one imagebutton in gridview using the "RowDataBound" method. But I could not able to found the onclick/runtat event..
How can i add this one ?

ImageButton imgSortAssendingbyId = new ImageButton();

Thanks in Advance
Dana

Re: Image button in Gridview

SamRST15-May-08 2:04

SamRST

15-May-08 2:04

hi.. use this code in GVList_RowDataBound(...)

Dim btnDel As ImageButton, btnUpd As ImageButton, lbexp As Label
If e.Row.RowType = DataControlRowType.DataRow Then
btnDel = CType(e.Row.FindControl("btnDelete"),ImageButton)
btnDel.Attributes.Add("onclick", "return confirm_delete();")
btnDel.CommandArgument = e.Row.RowIndex.ToString
'btnUpd = CType(e.Row.FindControl("btnUpdate"), ImageButton)
'btnUpd.CommandArgument = e.Row.RowIndex.ToString
End If

Re: Image button in Gridview

danasegaranea15-May-08 2:16

danasegaranea

15-May-08 2:16

Thanks for the reply..

You are in the retriving phase. I am asking how to add a server control to the header ?

Re: Image button in Gridview

_AK_15-May-08 20:29

_AK_

15-May-08 20:29

You can place the Image button in the header template also same way as row databound event gets fired for the headers and footers also.

Apurva Kaushal

Re: Image button in Gridview

Gayani Devapriya15-May-08 8:35

Gayani Devapriya

15-May-08 8:35

Hi Dana,

I assume you have already added the ImageButton to the GridView. And here is how you do the rest.
The GridView's RowCommand event will fire when you click on that ImageButton in the GridView. That is in your code imgSortAssendingbyId.
(This command basically fires for any button’s click event, in the GridView).
Example:-
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
Response.Write("You Clicked the Button");
}

Thx,
Gayani

url encode with '+'

g00fyman15-May-08 1:03

g00fyman

15-May-08 1:03

hi all,

i have a httphandler that returns an image when i send it text (and other parameters). The trouble is i have a need to send the string 'news + events', but the '+' is not being output at all.

code in page
_HeadingTextImage.ImageUrl = "textimage.ashx?text=" + Server.UrlEncode("news+events");

code in httphandler
string qText = (query["text"] == null) ? UsageText : context.Server.UrlDecode(query["text"]);

qText always = "news events" when i step into it.

can anyone tell me how to do this please?

thanks,

Maurice

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