How to assign UpdatePanel Trigger's control ID with button's from gridview

Question

currently I have a UpdatePanel for jQuery Dialog use, which contains a GridView.

And that GridView contains a FileUpload control in footer and EmptyDataTemplate

Answer 1

I had a similar problem and this post helped me, but I found that registering the control in the scriptmanager works only if the updatepanels UpdateMode is set to "Always". If its set to "Conditional" this approach does not work.

I found another approach that always works which is to add triggers to the updatepanel in the DataBound() event of the gridview:

    Dim CheckBoxTrigger As UpdatePanelControlTrigger = New AsyncPostBackTrigger()
    Dim SelectCheckBox As CheckBox
    For i = 0 To GridViewEquipment.Rows.Count - 1 Step 1
        SelectCheckBox = GridViewEquipment.Rows(i).Cells(12).FindControl("CheckBoxSign")
        CheckBoxTrigger.ControlID = SelectCheckBox.UniqueID
        UpdatePanelEquipment.Triggers.Add(CheckBoxTrigger)
    Next