Adding Template Fields to a GridView Control.

A TemplateField is used in cases where authors need complete control over the

contents of a GridView column. The TemplateField is declared with an

<ItemTemplate> element, which in turn is used to define the content that will be

rendered for each row in the column. The ItemTemplate can include any valid HTML.

To add a template column:-

1.Set the GridView control's AutoGenerateColumns property to false.

<asp:GridView id="myGrid" runat="server"
   autogeneratecolumns=false
   ...
>

2. Within the GridView declaration, declare a <Columns> element.

3.Within the Columns element, define the <asp:TemplateField> 

control, along with the required <ItemTemplate> element.

4.Within the ItemTemplate, define the HTML or server control that 

will contain the field value.

To display the value of a field in an item template,

use DataBinding 
Expression Syntax. 

5.Optionally set the <asp:TemplateField> control's 

other properties.

For syntax, see GridView Control Syntax. 

<columns>
 <asp:templatefield>

   <itemtemplate>
     <img width=60 align="top" 

src='<%# Eval ("title_id", "../images/title-{0}.gif" )%>'>
   </itemtemplate>

  </asp:templatefield>
   ...
</columns>