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FormView.HeaderRow Property

Gets the FormViewRow object that represents the header row in a FormView control.

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

[BrowsableAttribute(false)]
public virtual FormViewRow HeaderRow { get; }

Property Value

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

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

NoteNote:

The HeaderRow property is available only after the FormView 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 FormView control has been rendered; otherwise, the FormView control overwrites any changes.

The following example demonstrates how to use the HeaderRow property to programmatically modify the properties of the header row during the ItemCreated event.

<%@ 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 EmployeeFormView_ItemCreated(Object sender, EventArgs e)
  {

    // Use the HeaderRow property to retrieve the header row.
    FormViewRow header = EmployeeFormView.HeaderRow;

    // Retrieve the HeaderLabel Label control from the header row. 
    Label headerLabel = (Label)header.FindControl("HeaderLabel");

    if(headerLabel != null)
    {
      // Display the current page number. 
      int currentPage = EmployeeFormView.PageIndex + 1;
      headerLabel.Text = "Page " + currentPage.ToString();
    }

  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>FormView HeaderTemplate Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <h3>FormView HeaderTemplate Example</h3>

      <asp:formview id="EmployeeFormView"
        datasourceid="EmployeeSource"
        allowpaging="true" 
        datakeynames="EmployeeID"
        onitemcreated="EmployeeFormView_ItemCreated"
        runat="server">

        <headertemplate>
          <table>
            <tr>
              <td>
                <asp:image id="LogoImage"
                  imageurl="~/Images/LogoImage.jpg"
                  alternatetext="Our Logo"
                  runat="server"/>
              </td>
              <td>
                <asp:label id="HeaderLabel"
                  runat="server"/>
              </td>
            </tr>
          </table>
        </headertemplate>

        <headerstyle horizontalalign="Center"
          forecolor="White"
          backcolor="LightBlue"/>

        <itemtemplate>

          <table>
            <tr>
              <td>
                <asp:image id="EmployeeImage"
                  imageurl='<%# Eval("PhotoPath") %>'
                  alternatetext='<%# Eval("LastName") %>' 
                  runat="server"/>
              </td>
              <td>
                <h3><%# Eval("FirstName") %>&nbsp;<%# Eval("LastName") %></h3>      
                <%# Eval("Title") %>        
              </td>
            </tr>
          </table>

        </itemtemplate>

        <pagersettings position="Bottom"
          mode="NextPrevious"/> 

      </asp:formview>

      <!-- 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="EmployeeSource"
        selectcommand="Select [EmployeeID], [LastName], [FirstName], [Title], [PhotoPath] From [Employees]"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>" 
        runat="server"/>

    </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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