Hello,

Please see my attached sample. Sometimes, it requires more settings for non-inetrsoft controls such as ASP.Net control.

Regards,
Handy

Hello Handy,

Can you please explain me what you are doing in this sample you provided?

Thanks,

Huzefa Katwarawala

Hello,

Sure. I write back (update) the label after choose an Item in WebCombo. It works well by using WebFlyPostBackManager. If you have a trouble, please provide a simple runable sample that replicates the issue. I will try to modify and make it work for you.

Regards,
Handy

Hi handy,

This method does not seem to work when we're on WebGrid UpdateRow event.

I have attached a modified sample for you to look at. Real-life situation is I need to update a total when users update a value in the grid. I cannot use the Grid's total/aggregate feature. They are not suitable for the purpose I am trying to achieve.

Hi,

You will need to have additional code before set the text label. Hope this helps.

 WebGrid1.ClientAction.RefreshModifiedControls();
 WebGrid1.ClientAction.RenderControl(Label1);

Regards,
Handy

Thank you. It does help.

I tried removing WebFlyPostbackManager and the listener, and this code piece that you gave for the earlier example and it still worked.

With WebGrid1
    '.AspNetAjaxSettings.CreatedAtRuntime = True
    '.AspNetAjaxSettings.UpdateControlScripts = True
    '.AspNetAjaxSettings.UpdateControlStyles = True
    .ClientAction.RefreshModifiedControls()
    .ClientAction.RenderControl(Label1)
End With

Can you tell me what is the role of WebFlyPostbackManager and the aspnetajaxsettings here? Do I need them?

Hello Rudy,

WebGrid has Ajax mechanism itself. Please remember that WebFlyPostBackManager has similiar functionality with AjaxUpdatePanel. One of its function is to prevent the page FullPostBack in UI and persist all the updates with it.
However, in WebGrid, if you only use FlyPostBack process in the WebGrid, using WebGrid ClientAction might be enough. In this scenario, the page also does not require FullPostBack at all.

You also don't need AspNetAjaxSettings all the time. This only additional settings to ensure missing styles and scripts during the update. It also would help some update states.
If the changes can persist well without those settings, you can comment out the code.

Regards,
Handy