Here is the running code.
aspx page
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="PopupQuery.aspx.cs" Inherits="PopupQuery" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<ext:XScript ID="XScript1" runat="server">
<script>
var topicValues = function (value)
{
var r = #{StoreCombo}.getById(value);
if (Ext.isEmpty(r))
{
return "";
}
return r.data.TopicName;
};
</script>
</ext:XScript>
<ext:ResourceManager ID="rmPrelimIdeas" runat="server" />
<ext:Store ID="StoreCombo" runat="server">
<Model>
<ext:Model ID="Model1" runat="server" IDProperty="TopicID">
<Fields>
<ext:ModelField Name="TopicID" />
<ext:ModelField Name="TopicName" />
</Fields>
</ext:Model>
</Model>
</ext:Store>
<ext:GridPanel ID="GridPanel1" runat="server">
<Store>
<ext:Store ID="Store1" runat="server">
<Model>
<ext:Model ID="Model2" runat="server">
<Fields>
<ext:ModelField Name="TopicID" />
<ext:ModelField Name="TopicName" />
<ext:ModelField Name="ShortDescription" />
<ext:ModelField Name="LongDescription" />
</Fields>
</ext:Model>
</Model>
</ext:Store>
</Store>
<ColumnModel ID="ColumnModel1" runat="server">
<Columns>
<ext:Column ID="Column4" runat="server" Text="Topic" DataIndex="TopicID" Width="240">
<Renderer Fn="topicValues" />
<Editor>
<ext:ComboBox ID="ComboBox1" runat="server" StoreID="StoreCombo" DisplayField="TopicName"
ValueField="TopicID" />
</Editor>
</ext:Column>
<ext:Column ID="Column1" runat="server" Text="Short Description" DataIndex="ShortDescription"
Flex="1">
<Editor>
<ext:TextField ID="TextField1" runat="server" />
</Editor>
</ext:Column>
<ext:ImageCommandColumn ID="ImageCommandColumn1" runat="server" Text="Long Description">
<Commands>
<ext:ImageCommand CommandName="LongDescription" Icon="TextAlignRight" ToolTip-Text="Long Description">
</ext:ImageCommand>
</Commands>
<Listeners>
<Command Handler="#{window2}.show();">
</Command>
</Listeners>
</ext:ImageCommandColumn>
</Columns>
</ColumnModel>
<Plugins>
<ext:CellEditing>
</ext:CellEditing>
</Plugins>
<SelectionModel>
<ext:CheckboxSelectionModel ID="CheckboxSelectionModel1" runat="server" />
</SelectionModel>
<TopBar>
<ext:Toolbar ID="Toolbar1" runat="server">
<Items>
<ext:Button ID="btnSave" runat="server" Icon="Disk">
<DirectEvents>
<Click>
<ExtraParams>
<ext:Parameter Name="Values" Value="Ext.encode(#{GridPanel1}.getRowsValues({selectedOnly:true}))"
Mode="Raw" />
</ExtraParams>
</Click>
</DirectEvents>
</ext:Button>
</Items>
</ext:Toolbar>
</TopBar>
</ext:GridPanel>
<ext:Window ID="window2" runat="server" Hidden="true" Width="510px">
<Items>
<ext:TextArea ID="txtArLongDesp" Width="500px" Text="Enter Long Description" MaxLength="2000" AutoScroll="true" runat="server" />
</Items>
</ext:Window>
</div>
</form>
</body>
</html>
Code behind page
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Ext.Net;
public partial class PopupQuery : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!X.IsAjaxRequest)
{
//DataSource for StoreCombo
List<object> StoreComboData = new List<object>
{
new {TopicID="1",TopicName="Topic1"},
new {TopicID="2",TopicName="Topic2"},
new {TopicID="3",TopicName="Topic3"}
};
StoreCombo.DataSource = StoreComboData;
StoreCombo.DataBind();
//DataSource for GridBox
List<object> gridData = new List<object>
{
new {TopicID = "1", TopicName = "Topic1", ShortDescription="Test1" },
new {TopicID = "3", TopicName = "Topic3", ShortDescription="Test2"},
new {TopicID = "2", TopicName = "Topic2", ShortDescription="Test3"},
new {TopicID = "2", TopicName = "Topic2", ShortDescription="Test4"},
new {TopicID = "3", TopicName = "Topic3", ShortDescription="Test5" },
};
Store1.DataSource = gridData;
Store1.DataBind();
}
}
}