[Solved] Loosing Template Column contents

[Syed]

Hi, I have a grid with nestedviewtemplate , it works fine but when I click on expand icon on any record it shows the sub grid but loosing content of my main grid template columns.

<telerik:RadScriptManager ID="ScriptManager1" runat="server"></telerik:RadScriptManager>
    <telerik:RadGrid ID="RadGrid1" Width = "100%" runat="server" Height= "100%"
        AutoGenerateColumns="False" GridLines="None"
        OnItemDataBound="RadGrid1_ItemDataBound" Skin="WebBlue" >
<MasterTableView>

<RowIndicatorColumn>
<HeaderStyle Width="20px"></HeaderStyle>
</RowIndicatorColumn>
<NestedViewTemplate>
<asp:Panel runat="server" ID="InnerContainer" ToolTip='<%# Eval("EventHour") %>' Visible="false">
    <asp:Label ID="lblEventHour" runat="server" Visible="false" Text='<%# Eval("EventHour") %>'></asp:Label>
    <telerik:RadGrid ID="RadGrid2" Width = "100%" runat="server" Height= "100%"
        AutoGenerateColumns="False" GridLines="None" OnNeedDataSource="RadGrid2_NeedDataSource"  Skin="WebBlue" ShowHeader="false" OnItemDataBound="RadGrid2_ItemDataBound">
        <MasterTableView ShowHeader="false" AutoGenerateColumns = "false"  >
        <Columns>
        <telerik:GridBoundColumn UniqueName="CameraId" Visible="false" DataField="CameraId"></telerik:GridBoundColumn>
        <telerik:GridBoundColumn UniqueName="ServerId" Visible="false" DataField="ServerId"></telerik:GridBoundColumn>
        <telerik:GridTemplateColumn UniqueName="CameraColumn" Groupable="false">
        <HeaderStyle Width="18%" HorizontalAlign = "Center" />
        <ItemStyle HorizontalAlign="Center" />
        <ItemTemplate>
            <asp:Label ID="CameraName" runat="server" Width="80px" />
        </ItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn UniqueName="SliderColumn1" Groupable="false">
        <HeaderStyle Width="432px" />
        <ItemStyle HorizontalAlign="Center" />
        <ItemTemplate>
        <asp:PlaceHolder ID="SliderPlaceHolder1" runat="server"></asp:PlaceHolder>
        </ItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn UniqueName="EventActions" Groupable="false">
        <HeaderStyle Width="15%" HorizontalAlign="Center" />
        <ItemStyle HorizontalAlign="Center" />
        <ItemTemplate>
         <asp:PlaceHolder ID="EAPlaceHolder1" runat="server"></asp:PlaceHolder>
        </ItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn UniqueName="TotalDuration1" Groupable="false">
        <HeaderStyle Width="12%" HorizontalAlign="Center"/>
        <ItemStyle HorizontalAlign="Center" />
        <ItemTemplate>
        <asp:Label ID="TotalDuration1" runat="server" Width="80px" />
        </ItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn UniqueName="TotalSize1" Groupable="false">
        <HeaderStyle Width="10%" HorizontalAlign="Center"/>
        <ItemStyle HorizontalAlign="Center" />
        <ItemTemplate>
        <asp:Label ID="TotalSize1" runat="server" Width="80px" />
        </ItemTemplate>
        </telerik:GridTemplateColumn>

    </Columns>
    </MasterTableView>
    </telerik:RadGrid>
</asp:Panel>
</NestedViewTemplate>
<ExpandCollapseColumn>
<HeaderStyle Width="20px"></HeaderStyle>
</ExpandCollapseColumn>
    <Columns>
        <telerik:GridBoundColumn UniqueName="EvnetHour" Visible="false" DataField="EventHour"></telerik:GridBoundColumn>
        <telerik:GridBoundColumn UniqueName="EventCount" Visible="false" DataField="EventCount"></telerik:GridBoundColumn>
        <telerik:GridTemplateColumn HeaderText ="Start Time" UniqueName="StartTime" Groupable="false">
        <HeaderStyle Width="18%" HorizontalAlign = "Center" />
        <ItemStyle HorizontalAlign="Center" />
        <ItemTemplate>
            <asp:Label ID="HourLabel" runat="server" Width="80px" />
        </ItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn UniqueName="SliderColumn" Groupable="false">
        <HeaderStyle Width="432px" />
        <ItemStyle HorizontalAlign="Center" />
        <ItemTemplate>
        <asp:PlaceHolder ID="SliderPlaceHolder" runat="server"></asp:PlaceHolder>
        </ItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn HeaderText="Event Actions" UniqueName="EventActions" Groupable="false">
        <HeaderStyle Width="15%" HorizontalAlign="Center" />
        <ItemStyle HorizontalAlign="Center" />
        <ItemTemplate>
         <asp:PlaceHolder ID="EAPlaceHolder" runat="server"></asp:PlaceHolder>
        </ItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn HeaderText="Total Duration" UniqueName="TotalDuration" Groupable="false">
        <HeaderStyle Width="12%" HorizontalAlign="Center"/>
        <ItemStyle HorizontalAlign="Center" />
        <ItemTemplate>
        <asp:Label ID="TotalDuration" runat="server" Width="80px" />
        </ItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn HeaderText="Total Size" UniqueName="TotalSize" Groupable="false">
        <HeaderStyle Width="10%" HorizontalAlign="Center"/>
        <ItemStyle HorizontalAlign="Center" />
        <ItemTemplate>
        <asp:Label ID="TotalSize" runat="server" Width="80px" />
        </ItemTemplate>
        </telerik:GridTemplateColumn>

    </Columns>
</MasterTableView>

        <HeaderStyle Font-Names="Verdana" Font-Size="X-Small" BorderStyle="None"
            Wrap="False" />

        <ClientSettings>
            <Scrolling AllowScroll="True" ScrollHeight="100%" UseStaticHeaders="True" />
        </ClientSettings>

<FilterMenu EnableTheming="True">
<CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation>
</FilterMenu>
    </telerik:RadGrid>

on Item databound event I am adding some pictures in template columns but whenever I click on plus icon those pictures gone and only lable columns shows up. Any idea
My item Data Bound Code

Protected Sub RadGrid1_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles RadGrid1.ItemDataBound
        If Not arrServers Is Nothing Then
            If TypeOf e.Item Is Telerik.Web.UI.GridDataItem Then

                Dim mySQLConnector As New SQLConnector
                Dim item As Telerik.Web.UI.GridDataItem = DirectCast(e.Item, Telerik.Web.UI.GridDataItem)

                Dim HourIndex As Integer = CInt(item.GetDataKeyValue("EventHour"))
                Dim lbl As Label = CType(e.Item.FindControl("HourLabel"), Label)
                Dim lblDuration As Label = CType(e.Item.FindControl("TotalDuration"), Label)
                Dim lblTotalSize As Label = CType(e.Item.FindControl("TotalSize"), Label)
                Dim pl As PlaceHolder = CType(e.Item.FindControl("SliderPlaceHolder"), PlaceHolder)
                Dim eapl As PlaceHolder = CType(e.Item.FindControl("EAPlaceHolder"), PlaceHolder)
                Dim objClient As ESMWCF.IESMChannel
                Dim iWidth As Integer = 0
                Dim iHeight As Integer = 0

                lbl.Text = FormatHour(HourIndex)
                PopulateSliderCell(HourIndex, pl, HourIndex, mySQLConnector)

                If iCamCount = 1 Then
                    'only need width and height if single camera
                    Dim SerCam() As String = Split(sCameras, ";")
                    Dim objServer As New Data.cServer(CInt(SerCam(0)), cServer.IDType.idServer)
                    Try
                        'objClient = New ESMWCF.ESMClient("WSHttpBinding_IESM", "http://" & objServer.IPAddress & "/ESM.svc")
                        objClient = ServiceProxy(Of ESMWCF.IESMChannel).getClientProxy("http://" & objServer.IPAddress & "/ESM.svc")
                        Using ds As DataSet = objClient.GetCameraInfo(CInt(SerCam(1)))
                            iWidth = CInt(ds.Tables(0).Rows(0)("CameraHorizRes"))
                            iHeight = CInt(ds.Tables(0).Rows(0)("CameraVertRes"))
                        End Using

                        PopulateSingleActionCell(eapl, sCameras, HourIndex, HourIndex, iWidth, iHeight)
                        Dim iSeconds As Integer = 0
                        iSeconds = objClient.GetEventDurationByHour(iCameraId, HourIndex, SelectedDate, iTimeOffset)
                        Dim sTotalTime As String = SetTimeFormat(iSeconds)
                        lblDuration.Text = sTotalTime
                        lblTotalSize.Text = "0 MB"
                        Using ds As DataSet = objClient.GetFilteredArchiveInfo(SerCam(1), SelectedDate.Year, SelectedDate.Month, SelectedDate.Day, iTimeOffset, sFilterStr)
                            'Put the event information in an array because we can't have two open readers on the same database
                            If ds.Tables(0).Rows.Count > 0 Then
                                For Each dr In ds.Tables(0).Rows
                                    If Not dr("EventHour") Is System.DBNull.Value Then
                                        If CInt(dr("EventHour")) = HourIndex Then
                                            If Not dr("TotalSize") Is System.DBNull.Value Then
                                                lblTotalSize.Text = FormatNumber(CDbl(dr("TotalSize")) / 1024000, 2) & " MB"
                                                Exit For
                                            End If

                                        End If
                                    End If

                                Next
                            End If
                        End Using

                        objClient.Close()
                    Catch ex As ServiceModel.CommunicationException
                        objClient.Abort()
                    Catch ex As TimeoutException
                        objClient.Abort()
                    Catch ex As Exception
                        objClient.Abort()
                        Throw ex
                    End Try

                Else
                    PopulateActionCell(eapl, sCameras, HourIndex, HourIndex)
                    'Add a Total Duration cell to the row ====================
                    lblDuration.Text = "--:--"
                    lblTotalSize.Text = "0 MB"
                End If


            End If
        End If


        'Dim objClient As ESMWCF.IESMChannel
        ''


    End Sub

[Syed]

I am really disappointed that issue after me answered but this one not even after 17 hour.

[Mira]

Hello Syed,

To your question - I recommend that you create the controls for the GridTemplateColumn in the ItemCreated event handler and bind them to data in the ItemDataBound event handler.
For additional information please take a look at the Distinguishing the major differences between ItemCreated and ItemDataBound events help topic.

Regarding the forum threads answering: Please check this article for more information on our support options.

Best wishes,
Mira
the Telerik team

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