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capturing checkbox.checked in repeater control

P: n/a
Hi,

I have a problem capturing the checkboxes that are checked, I get false
irrespective of wether they are checked or not.

I have gone thru the sample code on this forum, but they dun seem to work.
This is the code that I used to go thru the repeater control to find my
checkboxes.

foreach(RepeaterItem r in MyRepeater.Items)
{
for (int i=1; i<=6; i++) //6 checkboxes
{
CheckBox chk = (CheckBox)r.FindControl("chkbox"+ i);
if(chk.Checked)
{
tstdAnswer += "1";
}
else
tstdAnswer += "0";
}
}
lbl2.Text += " tstdAnswer is: " + tstdAnswer;

I used the step-by-step debugger, n everytime, the program will loop
straight to the false code, n give me a "000000" string each time.

I databind the checkbox in the html code as below, display of the info is
perfectly correct, so the error shouldn't be here. Below is a cut-down
version of my code:

<ASP:REPEATER id="MyRepeater" runat="server">
<ItemTemplate>
<asp:CheckBox id="chkbox1" runat="server" Checked="false" visible='<%#
DataBinder.Eval(Container.DataItem, "choiceA").ToString() != "" %>' >
</asp:CheckBox>
</ItemTemplate>
<FooterTemplate>
</Table>
</FooterTemplate>
</ASP:REPEATER>

TIA.
Andrew.

Nov 19 '05 #1
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2 Replies


P: n/a
Are you binding this in the Page_Load ??

Be sure to use the Page.IsPostBack method in your pageload.
Otherwise, the Repeater will keep getting reset, and all your checkboxes
will be in there default value (unchecked)

So, if you code looks something like this:

void Page_Load(object Sender, Eventargs e)
{
BindMyGrid(); //or whatever code you use to populate your repeater
}

Change it too:

void Page_Load(object Sender, Eventargs e)
{
if(!Page.IsPostBack)
BindMyGrid(); //or whatever code you use to populate your repeater
}

HTH

"Andrew" <An****@discussions.microsoft.com> wrote in message
news:6F**********************************@microsof t.com...
Hi,

I have a problem capturing the checkboxes that are checked, I get false
irrespective of wether they are checked or not.

I have gone thru the sample code on this forum, but they dun seem to work.
This is the code that I used to go thru the repeater control to find my
checkboxes.

foreach(RepeaterItem r in MyRepeater.Items)
{
for (int i=1; i<=6; i++) //6 checkboxes
{
CheckBox chk = (CheckBox)r.FindControl("chkbox"+ i);
if(chk.Checked)
{
tstdAnswer += "1";
}
else
tstdAnswer += "0";
}
}
lbl2.Text += " tstdAnswer is: " + tstdAnswer;

I used the step-by-step debugger, n everytime, the program will loop
straight to the false code, n give me a "000000" string each time.

I databind the checkbox in the html code as below, display of the info is
perfectly correct, so the error shouldn't be here. Below is a cut-down
version of my code:

<ASP:REPEATER id="MyRepeater" runat="server">
<ItemTemplate>
<asp:CheckBox id="chkbox1" runat="server" Checked="false" visible='<%#
DataBinder.Eval(Container.DataItem, "choiceA").ToString() != "" %>' >
</asp:CheckBox>
</ItemTemplate>
<FooterTemplate>
</Table>
</FooterTemplate>
</ASP:REPEATER>

TIA.
Andrew.

Nov 19 '05 #2

P: n/a
U are right I am. I load the ds in the page_load, from there I call a method
BindRepeater(), which will load the repeater with the ds.datatable.

I already have the: if(!Page.IsPostBack) in my page_load. When I run the
program, I used the debugger n i detect that after i click the Next button,
the program calls the BindRepeater() method again, which will explain why i
get checkbox.checked false values each time.

So what I did for testing sake was to take away the BindRepeater method n
just insert its code straight into the Page_load. I used the debugger n saw
that when it reaches:
foreach(RepeaterItem r in MyRepeater.Items)
it just skips past this loop n proceed on.
I wonder why, hmmmm ...

TIA.
Andrew.

---------------------------------------------------------------------------------
"Grant Merwitz" wrote:
Are you binding this in the Page_Load ??

Be sure to use the Page.IsPostBack method in your pageload.
Otherwise, the Repeater will keep getting reset, and all your checkboxes
will be in there default value (unchecked)

So, if you code looks something like this:

void Page_Load(object Sender, Eventargs e)
{
BindMyGrid(); //or whatever code you use to populate your repeater
}

Change it too:

void Page_Load(object Sender, Eventargs e)
{
if(!Page.IsPostBack)
BindMyGrid(); //or whatever code you use to populate your repeater
}

HTH

"Andrew" <An****@discussions.microsoft.com> wrote in message
news:6F**********************************@microsof t.com...
Hi,

I have a problem capturing the checkboxes that are checked, I get false
irrespective of wether they are checked or not.

I have gone thru the sample code on this forum, but they dun seem to work.
This is the code that I used to go thru the repeater control to find my
checkboxes.

foreach(RepeaterItem r in MyRepeater.Items)
{
for (int i=1; i<=6; i++) //6 checkboxes
{
CheckBox chk = (CheckBox)r.FindControl("chkbox"+ i);
if(chk.Checked)
{
tstdAnswer += "1";
}
else
tstdAnswer += "0";
}
}
lbl2.Text += " tstdAnswer is: " + tstdAnswer;

I used the step-by-step debugger, n everytime, the program will loop
straight to the false code, n give me a "000000" string each time.

I databind the checkbox in the html code as below, display of the info is
perfectly correct, so the error shouldn't be here. Below is a cut-down
version of my code:

<ASP:REPEATER id="MyRepeater" runat="server">
<ItemTemplate>
<asp:CheckBox id="chkbox1" runat="server" Checked="false" visible='<%#
DataBinder.Eval(Container.DataItem, "choiceA").ToString() != "" %>' >
</asp:CheckBox>
</ItemTemplate>
<FooterTemplate>
</Table>
</FooterTemplate>
</ASP:REPEATER>

TIA.
Andrew.


Nov 19 '05 #3

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