HOw to Build a Nested GridView Control with ASP.NET?
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Answer Posted / swapna
The steps in creating Datagrid are
1) Create a new Web page in project.
2) Add a GridView to that page.
3) Define bound columns for every element of data in
datagrid.
4) Convert one or more bound columns into a template column
by clicking on the tag at the top-left corner of the
GridView.
5) select Edit columns from the smart menu, select the
field to convert, and click the link for converting a
bound column to a template column.
6) Close the Fields dialog.
7) Add a UserControl to your project.
8) Click the Smart tag on the GridView again and select
Edit Templates.
9) Drag and drop the UserControl from the solution explorer
to the ItemTemplate, remove the existing Label and TextBox,
and click Edit UserControl from the Smart tag menu.
10) Add a second GridView to the UserControl and you have
the basic design.
After completing all these steps Asp.net code looks like
this.
<%@ Page Language="VB" AutoEventWireup="false"
CodeFile="Default.aspx.vb" Inherits="_Default" %>
<%@ Register Src="Orders.ascx" TagName="Orders"
TagPrefix="uc2"%>
<%@ Register Src="OrdersControl.ascx"
TagName="OrdersControl" TagPrefix="uc1" %>
<!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>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server"
Height="191px" Width="325px"
AutoGenerateColumns="False">
<Columns>
<asp:BoundField DataField="CustomerID"
HeaderText="Customer ID">
<ItemStyle VerticalAlign="Top" />
<HeaderStyle Wrap="False" />
</asp:BoundField>
<asp:BoundField DataField="CompanyName"
HeaderText="Company Name">
<ItemStyle VerticalAlign="Top" />
<HeaderStyle Wrap="False" />
</asp:BoundField>
<asp:BoundField DataField="ContactName"
HeaderText="Contact Name">
<ItemStyle VerticalAlign="Top" />
<HeaderStyle Wrap="False" />
</asp:BoundField>
<asp:TemplateField HeaderText="Order Shipping
Details">
<EditItemTemplate>
</EditItemTemplate>
<ItemTemplate>
<uc2:Orders ID="Orders1" runat="server"/>
</ItemTemplate>
<ItemStyle VerticalAlign="Top" />
<HeaderStyle Wrap="False" />
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
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