I'm doing a small proof of concept for a larger project.  I have a page containing a single placeholder and a script manager.  I am dynamically adding an UpdatePanel, GridView and DetailsView to the UpdatePanel and attempting to handle inserts, edits, and deletes to my dataset without generating full page postbacks.

I've found that if I add triggers specifically to the DetailsView events, it will not do a full postback on the initial firing of an event.  For instance, I load my page with a grid and detail, I click select on the grid and the details are loaded into the detailsview without posting back.  From this point, if I select another item in the grid, I get an entire page postback.  I have tried adding a trigger for every available event for both the grid and detail views.  Does anyone have any ideas?

Here's pseudo code, I can post source if necessary:

Page_Load
      Create And Add UpdatePanel to Placeholder
      Set Properties of UpdatPanel

      Create and add triggers
      Dim trigger As New AsyncPostBackTrigger()
      myUpdatePanel.Triggers.Add(trigger)
      trigger.ControlID = myGridView.UniqueID.ToString
      trigger.EventName = "SelectedIndexChanged"

      Other Events handled:
      RowCancelingEdit
      PageIndexChanged
      PageIndexChanging
      RowCommand
      RowDeleted
      RowDeleting
      RowEditing
      RowUpdated
      RowUpdating
      SelectedIndexChanging

      Create and set Datasource properties and bind Grid

      Create and Add DetailsView, initialize properties
      Add Following Triggers:
      ItemUpdating ItemInserting ModeChanging ItemCommand
      ItemCreated
      ItemDeleted
      ItemDeleting
      ItemInserted
      ItemUpdated
      ModeChanged

      Bind to DataSource
End Page Load

I found an answer.  Ultimately I stripped the code back down to the basics and re-created the app.

I had to disable the viewstate and I made sure to name all of my items and not let the framework generate names.  I think those are the main changes.

Hi

I am curious as to how you were able to add triggers programmatically. 

I am having difficulty trying to assign a PostBackTrigger for a control that exists inside a gridview's itemtemplate.

This is how my control looks like - pretty basic stuff: 

UpdatePanel
--- GridView
    --- ItemTemplate
        --- Control

I guess my question is, at which event am I able to assign the postbacktrigger of the UpdatePanel to point to the control that exists inside the ItemTemplate?

Trawling through the forums, it seems like a lot of people are having issues with the UpdatePanel.  As for myself, I am still trying to get to grips with its quirks - and there are many ;)

Anyway, cheers for the help in advance. 
 

Would anyone have a response to the above question? I seem to be in the same predicament.

I have a DropDownList in an Insert Template of a DetailsView. The DDL is bound to a different DataSource than the DetailsView its in and I'm trying to make it update after I used a 2nd detailsview to insert a new row that would otherwise be populated into the DDL's data.