I have a simple ASP.NET application I am changing from classic ASP.NET to Infragistic controls. I am running .NET Framework 4.0, AJAX Control Toolkit 4, and Infragistics for ASP.NET 4.
Default.aspx has a Infragistics datagrid that has several items in it. You click ona row to select an item. It posts back gets the two values in the grid to pass to a details web page (Response.Redirect with the parameters on query string).
The details web page only has a couple of standard ASP.NET controls on it.
When the details web page loads - it does properly read the parameters passed on the query string.
But when the details web page (I guess) renders it throws an error:
In Default.aspx [dynamic]
In the lines that read:
<script type="text/javascript">
//<![CDATA[
if (typeof(Sys) === 'undefined') throw new Error(' ASP.NET Ajax client-side framework failed to load.');
//]]>
</script>
The error is:
Microsoft JScript runtime error: ASP.NET Ajax client-side framework failed to load.
Ive tried the other things I can find on the internet regarding this problem.
Any ideas?
Thanks
Hello Pete,
Thank you for sharing your experience with the whole community. If anyone else has the same issue they could benefit from your resolution.
Is Infragistics still around? Have not heard anything from them. Anyways - in case someone else is still using their controls - the answer is - you have to set
EnableAjax
="false"
in the WebDataGrid - and then it all works fine. My grid ended up looking like
<ig:WebDataGrid ID="WebDataGrid1" runat="server" DataKeyFields="ApplicationID" EnableDataViewState="true" Width="100%" EnableAjax="false" >
<Behaviors>
<ig:Selection Enabled="true" CellClickAction="Row" RowSelectType="Single">
<AutoPostBackFlags RowSelectionChanged="True" />
</ig:Selection>
</Behaviors>
</ig:WebDataGrid>
It appears the problem is when a row is selected, the grid calls the event handler
WebDataGrid1_RowSelectionChanged
and you try to access the selected rows in the handler
Then
selectedRow = WebDataGrid1.Behaviors.Selection.SelectedRows(0)
strApplicationID = selectedRow.Items(0).Value.ToString()
CodeKey = selectedRow.Items(1).Value.ToString()
Response.Redirect(
)
Under these circumstances - it blows up. If the user selects a row in the grid, the event handler is disabled (removed), and the user clicks a button - then the above code works fine.
I tried the other ways of doing Response.Redirect (ASP.NET and Infragistics RegisterStartupScript) and neither did any good. Then I saw examples of where people were using Response.Redirect in Infragistics applications.
Latest thoughts are that there must be a problem with the data grid. I need to populate a grid and then the user selects a row of the grid. When the user selects a row in the grid, it postbacks, and redirects to another web page with different data.
This is my data grid for testing purposes for now:
<ig:WebDataGrid ID="WebDataGrid1" runat="server" DataKeyFields="ApplicationID" EnableDataViewState="true" Width="100%"> <Behaviors> <ig:Selection Enabled="true" CellClickAction="Row" RowSelectType="Single"> <AutoPostBackFlags RowSelectionChanged="True" /> </ig:Selection> </Behaviors> </ig:WebDataGrid>
I guess I will spend today removing some of these values to find out if any of them are causing the problem.
I do have a Response.Redirect() from the first webpage to the other webpage. Looks as is Infragistics does not like Response.Redirect ?