DataGridItem.DataSetIndex Property

 

Gets the index of the DataGridItem object from the bound data source.

Namespace:   System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

public virtual int DataSetIndex { get; }

Property Value

Type: System.Int32

The index of the DataGridItem from the bound data source.

Use the DataSetIndex property to get the index of the DataGridItem object from the bound data source.

System_CAPS_noteNote

This property applies only to data items in the DataGrid control. The ItemType property of the DataGridItem object must be set to ListItemType.Item, ListItemType.AlternatingItem, ListItemType.SelectedItem, or ListItemType.EditItem.

The following code example demonstrates how to use the DataSetIndex property to display the index of the DataGridItem object from the bound data source.

System_CAPS_noteNote

The following code example uses the single-file code model and might not work correctly if copied directly into a code-behind file. This code example must be copied into an empty text file that has an .aspx extension.

<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Import Namespace="System.Data" %>

<!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" >
<script language="C#" runat="server">

   DataTable Cart;
   DataView CartView;

   ICollection CreateDataSource() 
   {
      DataTable dt = new DataTable();
      DataRow dr;

      dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32)));
      dt.Columns.Add(new DataColumn("StringValue", typeof(string)));
      dt.Columns.Add(new DataColumn("CurrencyValue", typeof(double)));

      for (int i = 0; i < 10; i++) 
      {
         dr = dt.NewRow();

         dr[0] = i;
         dr[1] = "Item " + i.ToString();
         dr[2] = 1.23 * (i+1);

         dt.Rows.Add(dr);
      }

      DataView dv = new DataView(dt);
      return dv;
   }

   void Page_Load(Object sender, EventArgs e) 
   {

      if (!IsPostBack) 
      {
         // Need to load this data only once.
         ItemsGrid.DataSource = CreateDataSource();
         ItemsGrid.DataBind();
      }

   }

   void Button_Click(Object sender, EventArgs e) 
   {

      Label1.Text = "The DataSetIndex of each item in the DataGrid are: <br />"; 

      foreach (DataGridItem item in ItemsGrid.Items)
      { 
         Label1.Text += "<br />" + item.DataSetIndex.ToString() +
                        " - " + item.Cells[1].Text;
      }

   }

</script>

<head runat="server">
    <title>DataGridItem DataSetIndex Example</title>
</head>
<body>

   <form id="form1" runat="server">

      <h3>DataGridItem DataSetIndex Example</h3>

      <asp:DataGrid id="ItemsGrid" runat="server"
           BorderColor="black"
           BorderWidth="1"
           CellPadding="3"
           ShowFooter="true"
           AutoGenerateColumns="true">

         <HeaderStyle BackColor="#00aaaa">
         </HeaderStyle>

         <FooterStyle BackColor="#00aaaa">
         </FooterStyle>

      </asp:DataGrid>

      <br />

      <asp:Button id="Button1"
           Text="Display DataSetIndex of Items in DataGrid"
           OnClick="Button_Click"
           runat="server"/>

      <br /><br />

      <asp:Label id="Label1" 
           runat="server"/>

   </form>

</body>
</html>

.NET Framework
Available since 1.1
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