Solved

Getting reference to Datagrid Footer controls

Posted on 2004-04-04
3
351 Views
Last Modified: 2008-03-10
I am using the footer as my Add Item row. I need to get a reference to a dropdownlist control and set a selected item. I need to do this anytime the page is rebound. DataGrid.Findcontrol("cboAddCBO")  returns Nothing. It seems there is no EditItem index associated with the footer either. The only time I can get a reference to the footer item is when I click a button in the footer row (using the ItemCommand event). Surely there is a way to get a reference to the footer row another way......
0
Comment
Question by:Misledman
3 Comments
 
LVL 12

Accepted Solution

by:
dfiala13 earned 250 total points
ID: 10752383
Yes, you can.  There are two ways...

When you bind the grid, you can access ithe footer item in the ItemDataBound event handler...


    Private Sub DataGrid1_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) Handles DataGrid1.ItemDataBound

        If (e.Item.ItemType = ListItemType.Footer) Then
            Dim ddl As DropDownList
            ddl = New DropDownList
            ddl.ID = "cboAddCBO"
            e.Item.Cells(0).Controls.Add(ddl)
        End If
    End Sub

On a postback you need to be a little trickier because as you found out the FooterItem is not part of the Items collection.

So you need to look in the collection of controls for the grid.  The grid itself only has one control which is the DataGRidTable.  This control actually holds all the Items (rows) including the footer and header.  The footer Item is always the last control in the Table so you can get it like so.  Then you need to look in the cell you created the dropdownlist in to get a reference to it...

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        Dim dgiFooter As DataGridItem
        Dim ddl As DropDownList
        With DataGrid1.Controls(0)
            dgiFooter = .Controls(.Controls.Count - 1)
            ddl = dgiFooter.Cells(0).FindControl("cboAddCBO")
        End With

    End Sub
0
 
LVL 1

Author Comment

by:Misledman
ID: 11079299
Sorry.... I thought I had cleaned up all my questions....
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A basic question.. “What is the Garbage Collector?” The usual answer given back: “Garbage collector is a background thread run by the CLR for freeing up the memory space used by the objects which are no longer used by the program.” I wondered …
This article shows how to deploy dynamic backgrounds to computers depending on the aspect ratio of display
This Micro Tutorial will teach you how to censor certain areas of your screen. The example in this video will show a little boy's face being blurred. This will be demonstrated using Adobe Premiere Pro CS6.
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now