Tuesday, March 9, 2010

Repeater control:

The Repeater control is used to display the data items in representing list. The content and layout of list items in Repeater is defined using Templates. Every Repeater must define an ItemTemplate.
Template:
There are the following Templates used in repeater control.
    * AlternatingItemTemplate
    * FooterTemplate
    * HeaderTemplate
    * ItemTemplate
    * SeparatorTemplate
FooterTemplate: The FooterTemplate determines the content and layout of the list footer. It is used to specify an optional footer row.
For Example:
<footertemplate></footertemplate>
HeaderTemplate: The HeaderTemplate determines the content and layout of the list header. It is used to specify an optional header row.
For Example:
<HeaderTemplate>
  <tr>
    <td><b>name</b></td>
    <td><b>no</b></td>
    <td><b>subject</b></td>
 </tr>
</HeaderTemplate>
ItemTemplate: It defines the content and layout of items within the list.
For Example:
<ItemTemplate>
  <tr>
    <td><%# DataBinder.Eval(Container,"dataitem.name") %></td>
    <td><%# DataBinder.Eval(Container,"dataitem.no") %></td>
    <td><%# DataBinder.Eval(Container,"dataitem.subject") %></td>
  </tr>
</ItemTemplate>

AlternatingItemTemplate: It is used as follows:
For Example:
<AlternatingItemTemplate>
  <tr style="background-color:Yellow">
  <td><%# DataBinder.Eval(Container,"dataitem.name") %></td>Soldier of Love
    <td><%# DataBinder.Eval(Container,"dataitem.no") %></td>
    <td><%# DataBinder.Eval(Container,"dataitem.subject") %></td>
  </tr>
</AlternatingItemTemplate>

Default.aspx file:  

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" Debug="true" %>
<!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:Repeater ID="Repeater1" runat="server" OnItemCommand="repeater1_itemcomand">
       <HeaderTemplate>
        <table border=5>
        <tr>
         <td><b>Roll no</b></td>
         <td><b>Name</b></td>
         <td><b>Course</b></td>
        </tr>
       </HeaderTemplate>
       <ItemTemplate>
        <tr>
        <td><%# DataBinder.Eval(Container,"DataItem.Rollno") %></td>
        <td><%# DataBinder.Eval(Container,"dataitem.Name") %></td>
        <td><%# DataBinder.Eval(Container,"dataitem.Course") %></td>
        </tr>
       </ItemTemplate>
       <AlternatingItemTemplate>
        <tr style="background-color:Yellow">
        <td><%# DataBinder.Eval(Container,"DataItem.Rollno") %></td>
        <td><%# DataBinder.Eval(Container,"dataitem.Name") %></td>
        <td><%# DataBinder.Eval(Container,"dataitem.Course") %></td>
        </tr>
       </AlternatingItemTemplate>
       <FooterTemplate></table></FooterTemplate>      
       </asp:Repeater>
    </div>
    </form>
</body>
</html>

Default.aspx.cs:

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page
{
    SqlConnection con;
    SqlCommand com = new SqlCommand();
    protected void Page_Load(object sender, EventArgs e)
    {
     con = new SqlConnection("Data Source=MCN004;Initial Catalog=student; uid=sa;pwd=");
    com.Connection = con;
    com.CommandText = "select * from student";
    con.Open();
    Repeater1.DataSource= com.ExecuteReader();
    Repeater1.DataBind();
    con.Close();
    }
    protected void repeater1_itemcomand(object source, RepeaterCommandEventArgs e)
    {}
}


 



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