Problem with a datagrid inside a datalist -- asp.net

Mikkel Olsen
3/7/2004 11:45:40 PM

Hi.

I have a problem regarding to the DataGrid_ItemDataBound event. I cant run
this event when my datagrid is inside a DataList.

The ItemDataBound for DataList1 is working well, but it never raises the
DataGrid1_ItemDataBound event.

Thx.

Mikkel, Denmark

My aspx-code:

<asp:datalist id="DataList1" runat="server" Width="800px" RepeatColumns="1"
RepeatDirection="Horizontal" CellPadding="4" CellSpacing="4">
<ItemStyle Font-Size="X-Small" Font-Names="Tahoma"></ItemStyle>
<ItemTemplate>
<%# Container.DataItem("HostName") %>
<asp:DataGrid id="DataGrid1" runat="server" CellPadding="3"
BorderColor="#999999" BorderStyle="None" BorderWidth="0px"
BackColor="White" GridLines="Vertical"
AutoGenerateColumns="False" ShowHeader="False">
<ItemStyle Font-Size="X-Small"
ForeColor="Black"></ItemStyle>
<Columns>
<asp:BoundColumn
DataField="Description"></asp:BoundColumn>
</Columns>
</asp:DataGrid>
</ItemTemplate>
</asp:datalist>

My aspx.vb-code:

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

Public Function GetHosts()
Dim SqlStr As String
SqlStr = "Select HOSTS.Hostid, Hostname from HOSTS"
Dim MyCommand = New SqlDataAdapter(SqlStr, myConnection)
Dim DS4 As New DataSet
MyCommand.Fill(DS4, "HOSTS")
DataList1.DataSource = DS4.Tables("HOSTS").DefaultView
DataList1.DataBind()
End Function

Private Sub DataList1_ItemDataBound(ByVal sender As Object, ByVal e As
System.Web.UI.WebControls.DataListItemEventArgs) Handles
DataList1.ItemDataBound
If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType =
ListItemType.AlternatingItem Then
Dim drv As DataRowView = e.Item.DataItem
Dim HostID As String = drv.Row.ItemArray(0)
Dim childgrid As DataGrid
Dim Ds3 As DataSet = GetServices(HostID)
childgrid = e.Item.FindControl("DataGrid1")
childgrid.Visible = True
childgrid.DataSource = Ds3
childgrid.DataBind()
End If
End Sub

Public Function GetServices(ByVal hostid As String) As DataSet
Dim SqlStr As String
SqlStr = "GetService"
Dim MyCommand2 = New SqlDataAdapter(SqlStr, myConnection2)
MyCommand2.SelectCommand.CommandType = CommandType.StoredProcedure
MyCommand2.SelectCommand.Parameters.Add(New SqlParameter("@hostid",
SqlDbType.Int))
MyCommand2.SelectCommand.Parameters("@hostid").Value = hostid
Dim DS2 As New DataSet
MyCommand2.Fill(DS2, "Services")
Return DS2
End Function
Private Sub DataList1_ItemDataBound(ByVal sender As Object, ByVal e As
System.Web.UI.WebControls.DataListItemEventArgs) Handles
DataList1.ItemDataBound
if e.Item.ItemType = ListItemType.Item Or e.Item.ItemType =
ListItemType.AlternatingItem Then
Dim drv As DataRowView = e.Item.DataItem
Dim HostID As String = drv.Row.ItemArray(0)
Dim childgrid As DataGrid
Dim Ds3 As DataSet = GetServices(HostID)
childgrid = e.Item.FindControl("DataGrid1")
childgrid.Visible = True
childgrid.DataSource = Ds3
childgrid.DataBind()
End If
End Sub

Andrew de la Harpe
3/8/2004 9:55:36 AM

For what it's worth I've found the same problem with datagrids inside a
datagrid.
I resolved it by programmatically adding the event to the grid each time the
grid was created.

A

[quoted text, click to view]

asp.net : Problem with a datagrid inside a datalist