I am having a heck of a time getting a child grid (a grid within a grid) to
go into edit mode. My code is below; it will go into edit mode only after
clicking on the dgChild's Edit linkbutton twice, and I can't figure out what
it's doing on the second click that it's not doing on the first click. If I
rebind the grid in the dgChild_EditCommand event, I lose all of the child
grid's data, and it displays only the parent grid records. If I rebind the
parent grid, it appears to do nothing since it resets everything. Any ideas
how I should be doing this? Another note: On the first click, under the
page load, the Session("Mode") is not yet set to "Edit" since the page loads
before the EditCommand event fires, but the "Guid/PrevGuid" session settings
prevent the grid from rebinding here. So there still is nothing different
that I can find that gets fired the second time, which successfully goes
into edit mode.



tia



<asp:datagrid id="dg" EnableViewState=True runat="server"
BorderStyle="Double" GridLines="Horizontal" BorderWidth="3px"
BorderColor="#cccccc" BackColor="White" CellPadding="4"
AutoGenerateColumns="False">

<Columns>

<asp:EditCommandColumn ItemStyle-VerticalAlign=Top ButtonType="LinkButton"
UpdateText="Update" HeaderText="Edit" CancelText="Cancel"
EditText="Edit"></asp:EditCommandColumn>

<asp:EditCommandColumn ItemStyle-VerticalAlign=Top ButtonType="LinkButton"
UpdateText="Confirm Delete" SortExpression="1" HeaderText="Delete"
CancelText="Cancel" EditText="Delete"></asp:EditCommandColumn>

<asp:BoundColumn Visible="False" DataField="ID"
ReadOnly="True"></asp:BoundColumn>

<asp:BoundColumn ItemStyle-VerticalAlign=Top HeaderText="Utility"
DataField="Utility"></asp:BoundColumn>

<asp:BoundColumn ItemStyle-VerticalAlign=Top HeaderText="AccountNumber"
DataField="AccountNumber"></asp:BoundColumn>

<asp:TemplateColumn HeaderText="Utility Records">

<ItemTemplate>







<asp:DataGrid id="dgChild"
AutoGenerateColumns="False"


OnEditCommand="dgChild_EditCommand"

EnableViewState="True"
Runat="server" DataSource='<%#
GetChildRelationDataSource(Container.DataItem, "relUtilityRecords") %>'>

<columns>



<asp:EditCommandColumn ItemStyle-VerticalAlign=Top
ButtonType="LinkButton" UpdateText="Update" HeaderText="Edit"
CancelText="Cancel" EditText="Edit"></asp:EditCommandColumn>

<asp:EditCommandColumn ItemStyle-VerticalAlign=Top
ButtonType="LinkButton" UpdateText="Confirm Delete" SortExpression="1"
HeaderText="Delete" CancelText="Cancel"
EditText="Delete"></asp:EditCommandColumn>

<asp:BoundColumn Visible="False" DataField="ID"
ReadOnly="True"></asp:BoundColumn>

<asp:BoundColumn DataField="Yr"
HeaderText="Year"></asp:BoundColumn>

<asp:BoundColumn HeaderText="Comments"
DataField="Comments"></asp:BoundColumn>

<asp:BoundColumn HeaderText="UtilityID"
DataField="UtilityID"></asp:BoundColumn>

</columns>

</asp:DataGrid>

</ItemTemplate>

</asp:TemplateColumn>

</Columns>

</asp:datagrid></COLUMNS>



...........

Code Behind:



Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load

'Put user code to initialize the page here

Page.SmartNavigation = True



If Not ispostback

Dim strGuid as String = HTTPContext.Current.Session("Guid")

GetData(qry)

else

If Session("Mode") = "Edit" then

'dgChild.Columns(1).Visible = false

else

If HTTPContext.Current.Session("Guid") =
HTTPContext.Current.Session("PrevGuid")

else

GetData(qry)

End If

end if



'Reset session values

HTTPContext.Current.Session("PrevGuid") =
HTTPContext.Current.Session("Guid")

End Sub



Private Sub GetData(qry)

Dim ds As New DataSet

ds = GetDataSet(qry, strConn)

' Try

HTTPContext.Current.Session("DS") = ds

dg.DataSource = ds

dg.DataBind()

' Catch ex as IndexOutOfRangeException

' Session("Status") = ex.Message & ": " & qry

' Catch ex as System.Web.HttpException

' Session("Status") = ex.Message

'End Try



End Sub

Public Shared Function GetDataSet(ByVal SQLString As String, ByVal
ConnectionString As String) As DataSet



Dim da As sqlDataAdapter

Dim ds As new DataSet

'Try

da = New sqlDataAdapter(SQLString, ConnectionString)

da.Fill(ds, "tblUtility")

ds.Relations.Add("relUtility", ds.Tables(0).Columns("ID"),
ds.Tables(1).Columns("UtilityID"))

ds.Relations(0).Nested = true



'Catch ex as Exception

' HTTPContext.Current.Session("Status") = ex.Message

'End Try

Return ds



End Function





Public Sub dgChild_EditCommand(ByVal source As Object, ByVal e As
System.Web.UI.WebControls.DataGridCommandEventArgs ) Handles
dgChild.EditCommand

Session("Mode")="Edit"

EditCommand(source, e)

End Sub

Public Sub EditCommand(dgrid, e)

Dim strMode as String = HTTPContext.Current.Session("Mode")

Dim ds as new dataset

ds = CType(HTTPContext.Current.Session("DS"),
DataSet)

'If strMode = "Delete" then

' dgrid.Columns(0).Visible = False

'Elseif strMode = "Edit" then

' dgrid.Columns(1).Visible = False

'end if

Dim dv As DataView

dv = ds.Tables(1).DefaultView

dgrid.EditItemIndex = e.Item.ItemIndex

End Sub