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Cidolfus
1290
Need help with serious issue!
posted

Hi,

I've been spending hours over a problem I can't seem to resolve.

I have populated a hierarchical webgrid with a custom collection containing 2 bands. I added the code to populate the webgrid on page load and everything works fine. I'm able to click on the '+' button and drill down into the details. 

However, when I moved the code(to populate the grid) into a button click event, this is what happens:

1) I load the page - grid is empty

2) I click on the button, - grid is loaded

I'm still able to see the '+' button, but when I click on it, nothing happens. It changes to '-' but the sub webgrid doesn't appear. clicking on it further does nothing, the '-' doesn't even change back to '+'. 

My page load event is empty.

The only other code I have is in the InitializeLayout event which consists of : UltraWebGrid1.DisplayLayout.LoadOnDemand = LoadOnDemand.Automatic;

I have tried adding this line of code into page load and in my button click event, but the problem still persists. 

Please help! 

 

PS: I'm using Infragistics 7.1

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  • 1290
    posted

    I just noticed another odd behaviour.

    I moved the code back into page load, and encompassed it within if(!Page.IsPostBack) { }, and problem occured. 

    This is how my code looks like:

    UltraWebGrid1.DataSource = requestList;

            UltraWebGrid1.DisplayLayout.ViewType = Infragistics.WebUI.UltraWebGrid.ViewType.Hierarchical;

            UltraWebGrid1.DataBind();

     

    It works completely fine without if (!Page.IsPostBack) { }

    All my controls are in an ASP.NET Update Panel. I tried removing the update panel, but it still yield the same results.

    Can anyone ascertain what the problem might be?

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