(v2003) Datagrid Dropdownlist Edit Problems

[bh]

I'm trying to edit data in a datagrid through a dropdown list with different
id/text values. The problem comes in when I click the edit button & nothing
appears to be happening. Did I do something wrong in the EditItemTemplat e
or should I be binding, somehow, separately in the vb code? Please view my
code, below, and the notes in green for clarification of what I've done, and
what is/is not working, here. Thanks in advance.

<asp:DataGrid id="dgItems" runat="server" CssClass="table standardsetting s"
BorderColor="Na vy" AutoGenerateCol umns="False">

<Columns>

<asp:TemplateCo lumn HeaderText="Ava ilable Items">

<ItemTemplate 'This works

<asp:Label
id="lbItem" runat="server" Text='<%# DataBinder.Eval (Container.Data Item,
"ItemName") %>' />

</ItemTemplate>

<EditItemTempla te 'This
does not work

<asp:DropDownLi st
id="cboItem" runat="server"

DataSource='<%# dvItems %>'

DataTextField=" ItemName"

DataValueField= "ItemID">

</asp:DropDownLis t>

</EditItemTemplat e>

</asp:TemplateCol umn>

<asp:EditComman dColumn ButtonType="Lin kButton" UpdateText="OK"
CancelText="Can cel" EditText="Edit" />

<asp:ButtonColu mn Text="Delete" CommandName="De lete"/>

</Columns>

</asp:DataGrid>

'----------------------------------------------------------

'I bind & display the datagrid here, when a user checks a

'box to maintain the items - THIS PART WORKS

'The grid is displayed, & the items show in the item column

'----------------------------------------------------------

Private Sub chkItems_Checke dChanged(ByVal sender As System.Object, ByVal e
As System.EventArg s) Handles chkItems.Checke dChanged

If Me.chkItems.Che cked Then

Me.BindItemsToG rid()

Me.pnlItemMaint enance.Visible = True

Else

Me.pnlItemMaint enance.Visible = False

End If

End Sub

'----------------------------------------------------------

'However, when edit is selected, the dataview is populated,

'but the row never opens in edit mode (the drop-down list

'and Update/Cancel Buttons are not displayed/opened).

'----------------------------------------------------------

Private Sub dgItems_EditCom mand(ByVal source As Object, ByVal e As _

System.Web.UI.W ebControls.Data GridCommandEven tArgs) Handles
dgItems.EditCom mand

BindItemsDropDo wnList() 'Populates dvItems - This works

Dim lblItemLabel As Label = e.Item.FindCont rol("lblItem")

Session("OldIte m") = lblItemLabel.Te xt

'----------------------------------------------------------

'Tracing accurately shows information retrieved from the Dataview,

'That should be bound to the data grid's dropdownlist

'----------------------------------------------------------

Trace.Write("Cu rrent Item: " & Session("OldIte m"))

Trace.Write("ID : " & CStr(dvItems.Ta ble.Rows(e.Item .ItemIndex)("It emID")))

Trace.Write("It em: " &
CStr(dvItems.Ta ble.Rows(e.Item .ItemIndex)("It emName")))

'----------------------------------------------------------

'HERE ARE THE TROUBLESOME PARTS:

'----------------------------------------------------------

'1) Setting the properties of the actual cboItem

'dropdownlist in the grid: The following 2 lines generate

'an instantiation error, but if I create an instance, then

'it's separate from the actual item in the grid.

'

'Dim cboItemList As DropDownList = e.Item.FindCont rol("cboItem")

'cboItemList.Se lectedItem.Text = lblItemLabel.Te xt

'----------------------------------------------------------

'2) Row never opens for editing (even with above 2 lines

' removed):

'----------------------------------------------------------

Me. dgItems.EditIte mIndex = e.Item.ItemInde x

End Sub