GridView.ShowHeader GridView.ShowHeader GridView.ShowHeader GridView.ShowHeader Property

Definizione

Ottiene o imposta un valore che indica se in un controllo GridView viene visualizzata la riga dell'intestazione.Gets or sets a value indicating whether the header row is displayed in a GridView control.

public:
 virtual property bool ShowHeader { bool get(); void set(bool value); };
public virtual bool ShowHeader { get; set; }
member this.ShowHeader : bool with get, set
Public Overridable Property ShowHeader As Boolean

Valore della proprietà

true per visualizzare la riga dell'intestazione, altrimenti false.true to display the header row; otherwise, false. Il valore predefinito è true.The default is true.

Esempi

Nell'esempio seguente viene illustrato come utilizzare la ShowHeader proprietà per visualizzare la riga di intestazione in GridView un controllo.The following example demonstrates how to use the ShowHeader property to display the header row in a GridView control.


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

<!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>


<%@ 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>

Commenti

Utilizzare la ShowHeader proprietà per specificare se un GridView controllo Visualizza la riga di intestazione.Use the ShowHeader property to specify whether a GridView control displays the header row. Per controllare l'aspetto della riga di intestazione, utilizzare la HeaderStyle proprietà.To control the appearance of the header row, use the HeaderStyle property.

Si applica a

Vedi anche