AJAX :: UpdatePanel Inside GridView Causes Other UpdatePanels On Page To Post Form Data?
Jul 21, 2010
I hope this is a really easy question but I'm struggling with it. I have a GridView that has an UpdatePanel within a TemplateField.
The idea is that the user can make simple alterations without a full page load being required.
I have simulated my page functionality in the following example, which simulates a database hit, gridview databinding and updatepanel functionality.
When you press any of the + or - buttons in the GridView, the form controls in the bottom UpdatePanel also post their contents back. I have seen this by using Firebug. On my real page however this is causing excessive bandwidth and is nearly the same as a full postback.
how I can force ONLY the appropriate UpdatePanel's contents to postback for processing, rather than all the UpdatePanels?? I've tried experimenting with Triggers but just can't get it working properly.
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Protected Sub SaveGrid()
For Each Row As GridViewRow In Me.gvLineItems.Rows
Dim f As FileUpload = CType(Row.FindControl("fuAttachment"), FileUpload)
'todo: this part is not working
If f.FileName.Length > 0 Then 'returns 0 always
'this returns 0.
end if
if f.HasFile() then
'this also returns false
end if
Next
End Sub
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my source code:
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
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Jan 26, 2011
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protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
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}
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[URL] .... This is my older post on this question .
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Jan 20, 2011
We have to create Master Pages. we have to add Default page instead of Master pages. we have to apply the code . I am getting error like this
" Control 'ctl00_ContentPlaceHolder1_ gridview ' of type 'GridView' must be placed inside the form"
here goes my content page
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
</asp:Content>
here goes my master page
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server" >
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