GridView.HeaderStyle Property
Gets a reference to the TableItemStyle object that enables you to set the appearance of the header row in a GridView control.
Assembly: System.Web (in System.Web.dll)
<PersistenceModeAttribute(PersistenceMode.InnerProperty)> Public ReadOnly Property HeaderStyle As TableItemStyle
Property Value
Type: System.Web.UI.WebControls.TableItemStyleA reference to the TableItemStyle that represents the style of the header row in a GridView control.
Use the HeaderStyle property to control the appearance of the header row in a GridView control. This property is read-only; however, you can set the properties of the TableItemStyle object it returns. The properties can be set declaratively using one of the following methods:
Place an attribute in the opening tag of the GridView control in the form Property-Subproperty, where Subproperty is a property of the TableItemStyle object (for example, HeaderStyle-ForeColor).
Nest a <HeaderStyle> element between the opening and closing tags of the GridView control.
The properties can also be set programmatically in the form Property.Subproperty (for example, HeaderStyle.ForeColor). Common settings usually include a custom background color, foreground color, and font properties.
The following example demonstrates how to use the HeaderStyle property to define a custom style for the header row in a GridView control.
<%@ Page language="VB" %> <!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>GridView ShowHeader and ShowFooter Example</title> </head> <body> <form id="form1" runat="server"> <h3>GridView ShowHeader and ShowFooter Example</h3> <asp:gridview id="CustomersGridView" datasourceid="CustomersSource" autogeneratecolumns="true" emptydatatext="No data available." showheader="true" showfooter="true" runat="server"> <headerstyle backcolor="LightCyan" forecolor="MediumBlue"/> <footerstyle backcolor="LightCyan" forecolor="MediumBlue"/> </asp:gridview> <!-- 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="CustomersSource" selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]" connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>" runat="server"/> </form> </body> </html>
Available since 2.0