Thread: Select all checkboxes in child repeater

hi guys

i'm trying to select all checkboxes in a child repeater, but i am having some
difficulty.

I have a checkbox in my HeaderTemplate, that when clicked must check all
checkboxes in my ItemTemplate, All of this is in a child repeater.

here's the simplified aspx page:

Code:

<asp:Repeater id="rpActiveCategory" runat="server" OnItemDataBound="rpActiveCategory_OnItemDataBound">
	<ItemTemplate>

		<asp:Repeater ID="rpActiveSpecs" runat="server" OnItemDataBound="rpActiveSpecs_OnItemDataBound" OnItemCommand="rpActiveSpecs_OnItemCommand">
			<headertemplate>
				<asp:CheckBox ID="cbActiveMain" runat="server" OnCheckedChanged="OnCheckedChanged_cbActiveMain" AutoPostBack="true" />
			</headertemplate>

                        <ItemTemplate>
				<asp:CheckBox ID="cbActive" runat="server" Enabled="true" /> 

And here is code for 'OnCheckedChanged_cbActiveMain':

Code:

Public Sub OnCheckedChanged_cbActiveMain(ByVal s As Object, ByVal e As EventArgs)
        Dim myCheckBox As CheckBox = s
        Dim rpActiveCategory As Repeater = myCheckBox.Parent.Parent.Parent.Parent.Parent
        Dim rpActiveCategoryItem As RepeaterItem = myCheckBox.Parent.Parent.Parent.Parent
        Dim rpActiveSpecs As Repeater = myCheckBox.Parent.Parent
        Dim rpActiveItem As RepeaterItem = myCheckBox.Parent

        Dim cbActiveMain As CheckBox = rpActiveItem.FindControl("cbActiveMain")
        Dim cbActive As CheckBox

        For Each categoryItem As RepeaterItem In rpActiveCategory.Items
            For Each item As RepeaterItem In rpActiveSpecs.Items
                cbActive = rpActiveItem.FindControl("cbActive")
                cbActive.Checked = True
            Next
        Next
    End Sub

the prob is that my code can't reference cbActive? gives ma an Object Null Reference.

any ideas, am i going about this in the right way?
Shem

huh?

cbActiveMain is the select all/deselect all checkbox, which i can access?
cbActive are the checkboxes i can't access...

i'm prob missing what your saying aren't I

er... ok then

so when i check cbActiveMain i fire my event, and then how exactly am i to use
the repeaters RowDataBound event?

i'm a bit lost here...

cool gonna google it, never used it before so prob why i'm lost here

thanks for the tip
will let everyone know how it goes

Shem

ok i think i get it...

Could I also use my repeaters OnItemDataBound?
after i fire my OnCheckedChanged event, I rebind my repeater
and in my OnItemDataBound event i simply check if cbActiveMain is checked
if it is, I simply check cbActive?

Shem

Originally Posted by jmurrayhead

lol sorry, that's what I meant to use, ItemDataBound...RowDataBound is for GridView

lol, was wondering why there was no intellisense for RowDataBound with my repeater