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DetailsView.HeaderRow Property

Gets a DetailsViewRow object that represents the header row in a DetailsView control.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)
[BrowsableAttribute(false)]
public virtual DetailsViewRow HeaderRow { get; }

Property Value

Type: System.Web.UI.WebControls.DetailsViewRow
A DetailsViewRow that represents the header row in a DetailsView control.

The header row is displayed at the top of the DetailsView control when the HeaderText or HeaderTemplate property is set. Use the HeaderRow property to programmatically access the DetailsViewRow object that represents the header row.

NoteNote:

The HeaderRow property is available only after the DetailsView control creates the header row in the ItemCreated event.

This property is commonly used when you need to programmatically manipulate the header row, for example when adding custom content. Any modification to the HeaderRow property must be performed after the DetailsView control has been rendered; otherwise, the DetailsView control will overwrite any changes.

The following code example demonstrates how to use the HeaderRow property to access the header row of the DetailsView control during the ItemCreated event. A Label control within the custom header row is then updated with the current page number.

<%@ Page language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

    void CustomerDetailView_ItemCreated(Object sender, EventArgs e)
  {

    // Get the header row.
      DetailsViewRow headerRow = CustomerDetailView.HeaderRow;

    // Get the Label control that displays the current page information  
    // from the header row.
    Label pageNum = (Label)headerRow.FindControl("PageNumberLabel");

    if(pageNum != null)
    {
      // Update the Label control with the current page number. 
        int page = CustomerDetailView.DataItemIndex + 1;
      pageNum.Text = "Page " + page.ToString ();
    }
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>DetailsView HeaderTemplate Example</title>
</head>
<body>
    <form id="Form1" runat="server">

      <h3>DetailsView HeaderTemplate Example</h3>

        <asp:detailsview id="CustomerDetailView"
          datasourceid="DetailsViewSource"
          datakeynames="CustomerID"
          autogeneraterows="true"
          allowpaging="true"
          onitemcreated="CustomerDetailView_ItemCreated"   
          runat="server">

          <headerstyle backcolor="Navy"
            forecolor="White"/>

          <pagersettings Mode="NextPreviousFirstLast"/>  

          <headertemplate>

            <table width="100%">            
              <tr>
                <td align="left">
                  <asp:Image id="LogoImage"
                    imageurl="~\images\Logo.jpg"
                    AlternateText="Our logo" 
                    runat="server"/>
                </td>
                <td align="right" valign="bottom">
                  <asp:Label id="PageNumberLabel"
                    font-size="9"
                    forecolor="DodgerBlue"
                    runat="server"/>
                </td>
              </tr>            
            </table>

          </headertemplate>

        </asp:detailsview>

        <!-- This example uses Microsoft SQL Server and connects  -->
        <!-- to the Northwind sample database. Use an ASP.NET     -->
        <!-- expression to retrieve the connection string value   -->
        <!-- from the web.config file.                            -->
        <asp:SqlDataSource ID="DetailsViewSource" runat="server" 
          ConnectionString=
            "<%$ ConnectionStrings:NorthWindConnectionString%>"
          InsertCommand="INSERT INTO [Customers]([CustomerID],
            [CompanyName], [Address], [City], [PostalCode], [Country]) 
            VALUES (@CustomerID, @CompanyName, @Address, @City, 
            @PostalCode, @Country)"

          SelectCommand="Select [CustomerID], [CompanyName], 
            [Address], [City], [PostalCode], [Country] From 
            [Customers]">
        </asp:SqlDataSource>
    </form>
  </body>
</html>

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0
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