Hi All,
I am not able see the drop down control values, I have a window with grid panel control contains drop down control, binding data from two different stores.
Ex: Store1 for gridpanel
Store 2 for drop down control

When click on button click, showing this window, for the first able to see the drop down control values, when I reopen the same window, not able to see the drop down controls in grid panel.

Please find the below code.
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Testpage.aspx.vb" Inherits="Mirabel.MM.Web.Testpage" %>


<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<!DOCTYPE html>


<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
function GetColumnMappingData() {


// setTimeout(App.direct.GetColumnMappingDataread(), 30000)
//alert("GetColumnMappingData caleed.......");
App.direct.GetColumnMappingDataread();
App.winColumnMapping.show();
return false;
}




</script>
<script runat="server">
Private ReadOnly Property Data1() As Object()
Get
Return New Object() {
New Object() {"3mCo"},
New Object() {"AlcoaInc"},
New Object() {"AltriaGroup Inc"},
New Object() {"AmericanExpressCompany"},
New Object() {"AmericanInternationalGroup"},
New Object() {"VerizonCommunications"},
New Object() {"WalMartStoresInc"}}
End Get
End Property
Private ReadOnly Property Data2() As Object()
Get
Return New Object() {
New Object() {"1a", "1a"},
New Object() {"2a", "2a"},
New Object() {"3a", "3a"},
New Object() {"4a", "4a"},
New Object() {"5a", "5a"},
New Object() {"6a", "6a"},
New Object() {"7a", "7a"}}
End Get
End Property
Private Sub BindData()
StTableColumns.DataSource = Me.Data2
StTableColumns.DataBind()
StTempColumns.DataSource = Me.Data1
StTempColumns.DataBind()
End Sub
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'If (Not IsPostBack) Then
'Me.BindData()
'End If


End Sub


<DirectMethod>
Public Sub GetColumnMappingDataread()
Try
BindData()
Catch ex As Exception
Throw ex
End Try


End Sub
</script>
</head>
<body>
<ext:ResourceManager runat="server" />
<form id="form1" runat="server">
<div>

<ext:Store runat="server" ID="StCustomFieldsColumns">
<Model>
<ext:Model runat="server" ID="a3">
<Fields>
<ext:ModelField Name="Value" />
<ext:ModelField Name="Display" />
</Fields>
</ext:Model>
</Model>
</ext:Store>
<ext:Viewport ID="Viewport1" runat="server" Layout="HBoxLayout" Padding="5">
<LayoutConfig>
<ext:HBoxLayoutConfig Align="Stretch" Pack="Start" />
</LayoutConfig>
<Defaults>
<ext:Parameter Name="Margins" Value="0 0 0 0"></ext:Parameter>
</Defaults>
<Items>
<ext:Button runat="server" ID="btnopenwindows" Text="Open Window">
<Listeners>
<Click Fn="GetColumnMappingData" />
</Listeners>
</ext:Button>
<ext:Window runat="server" ID="winColumnMapping" Title="ColumnMapping" Icon="TableMultiple"
Width="850" DefaultButton="Merge" Height="500" Modal="true" AutoScroll="true" BodyPadding="10" BodyStyle="background-color: White">
<Items>
<ext:GridPanel ID="grdColumnMapping" runat="server" Title="MapGrid" AutoScroll="true" TitleAlign="Center" Layout="VBoxLayout">
<Store>
<ext:Store runat="server" ID="StTempColumns">
<Model>
<ext:Model runat="server" ID="Model1">
<Fields>
<ext:ModelField Name="Display" />
<ext:ModelField Name="Value" />
</Fields>
</ext:Model>
</Model>
</ext:Store>
</Store>
<ColumnModel>
<Columns>
<ext:Column ID="colTableName" runat="server" Text="Imported file" Flex="1" DataIndex="Display" MenuDisabled="true"></ext:Column>
<ext:ComponentColumn ID="colBase" runat="server" Text="Base Table" Width="250" MenuDisabled="true">
<Component>
<ext:SelectBox runat="server" Name="ddmaintablecolumns" DisplayField="Display" ValueField="Value"
EmptyText="Import Type" Width="200" ID="chkbasecolumns">
<Store>
<ext:Store runat="server" ID="StTableColumns">
<Model>
<ext:Model runat="server" ID="a2">
<Fields>
<ext:ModelField Name="Value" />
<ext:ModelField Name="Display" />
</Fields>
</ext:Model>
</Model>
</ext:Store>
</Store>
</ext:SelectBox>
</Component>
</ext:ComponentColumn>
<ext:ImageCommandColumn runat="server" Text="Delete" MenuDisabled="true" Align="Center" Width="50" StyleSpec="margin:0 auto;">
<Commands>
<ext:ImageCommand CommandName="Edit" ToolTip-Text="Delete column from imported file." Icon="Delete" Style="width: 16px; margin: 0 auto !important; float: inherit !important;" />
</Commands>
</ext:ImageCommandColumn>
<ext:ImageCommandColumn runat="server" Text="Add" MenuDisabled="true" Align="Center" Width="50" StyleSpec="margin:0 auto;">
<Commands>
<ext:ImageCommand CommandName="Edit" Icon="Add" ToolTip-Text="Add column to CustomFields." Style="width: 16px; margin: 0 auto !important; float: inherit !important;" />
</Commands>
</ext:ImageCommandColumn>
</Columns>
</ColumnModel>
</ext:GridPanel>
</Items>
<BottomBar>
<ext:Toolbar runat="server" Layout="VBoxLayout">
<LayoutConfig>
<ext:VBoxLayoutConfig Align="Center"></ext:VBoxLayoutConfig>
</LayoutConfig>
<Items>
<ext:Panel runat="server" ID="columnMappingButton">
<Items>
<ext:Button ID="btnMaping" runat="server" Text="Map" MarginSpec="0 5 0 5">
<Listeners>
<%--<Click Fn="MapColumns" />--%>
</Listeners>
</ext:Button>
<ext:Button ID="btnClose" runat="server" Text="Close" MarginSpec="0 5 0 5">
<Listeners>
<%--<Click Fn="fnclose" />--%>
</Listeners>
</ext:Button>
</Items>
</ext:Panel>
</Items>
</ext:Toolbar>
</BottomBar>
</ext:Window>
</Items>
</ext:Viewport>


</div>
</form>
</body>
</html>

Can any one help me on this??

Regards,
Ajay