PagerSettings.Visible Eigenschaft

  • Referenz

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Ruft einen Wert ab, der angibt, ob die Pagingsteuerelemente in einem Steuerelement angezeigt werden, das Paginierung unterstützt, oder legt einen Wert fest.

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

Eigenschaftswert

Boolean

true zum Anzeigen des Pagers, andernfalls false. Der Standardwert ist true.

Beispiele

Im folgenden Codebeispiel wird veranschaulicht, wie die Visible Eigenschaft zum Ausblenden der Pagerzeile verwendet wird, wenn sich ein GridView Steuerelement im Bearbeitungsmodus befindet.


<%@ 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 CustomerGridView_RowEditing(Object sender, GridViewEditEventArgs e)
  {
    // Hide the pager row.
    CustomerGridView.PagerSettings.Visible = false;
  }

  void CustomerGridView_RowCommand(Object sender, GridViewCommandEventArgs e)
  {
    if (e.CommandName == "Cancel" || e.CommandName == "Update")
    {
      // Show the pager row.
      CustomerGridView.PagerSettings.Visible = true;
    }
  }
  
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>PagerSetting Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>PagerSetting Example</h3>
                       
        <asp:gridview id="CustomerGridView"
          datasourceid="CustomerDataSource"
          autogeneratecolumns="true"
          datakeynames="CustomerID"  
          allowpaging="true"
          autogenerateeditbutton="true"
          onrowediting="CustomerGridView_RowEditing"
          onrowcommand="CustomerGridView_RowCommand"   
          runat="server">
          
          <pagersettings mode="NextPreviousFirstLast"
            firstpagetext="First"
            lastpagetext="Last"
            nextpagetext="Next"
            previouspagetext="Prev"   
            position="Bottom"/> 
            
        </asp:gridview>
        
        <br/>
        
        <asp:label id="MessageLabel"
          forecolor="Red"
          runat="server"/>
            
        <!-- 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="CustomerDataSource"
          selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
          updatecommand="Update [Customers] Set [CompanyName]=@CompanyName, [Address]=@Address, [City]=@City, [PostalCode]=@PostalCode, [Country]=@Country Where [CustomerID]=@CustomerID" 
          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">
<script runat="server">

  Sub CustomerGridView_RowEditing(ByVal sender As Object, ByVal e As GridViewEditEventArgs) Handles CustomerGridView.RowEditing

    ' Hide the pager row.
    CustomerGridView.PagerSettings.Visible = False
    
  End Sub

  Sub CustomerGridView_RowCommand(ByVal sender As Object, ByVal e As GridViewCommandEventArgs) Handles CustomerGridView.RowCommand
  
    If e.CommandName = "Cancel" Or e.CommandName = "Update" Then
    
      ' Show the pager row.
      CustomerGridView.PagerSettings.Visible = True
      
    End If
      
  End Sub
  
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>PagerSetting Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>PagerSetting Example</h3>
                       
        <asp:gridview id="CustomerGridView"
          datasourceid="CustomerDataSource"
          autogeneratecolumns="true"
          datakeynames="CustomerID"  
          allowpaging="true"
          autogenerateeditbutton="true" 
          runat="server">
          
          <pagersettings mode="NextPreviousFirstLast"
            firstpagetext="First"
            lastpagetext="Last"
            nextpagetext="Next"
            previouspagetext="Prev"   
            position="Bottom"/> 
            
        </asp:gridview>
        
        <br/>
        
        <asp:label id="MessageLabel"
          forecolor="Red"
          runat="server"/>
            
        <!-- 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="CustomerDataSource"
          selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
          updatecommand="Update [Customers] Set [CompanyName]=@CompanyName, [Address]=@Address, [City]=@City, [PostalCode]=@PostalCode, [Country]=@Country Where [CustomerID]=@CustomerID" 
          connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>" 
          runat="server"/>
            
      </form>
  </body>
</html>

Hinweise

Verwenden Sie die Visible Eigenschaft, um anzugeben, ob die Pagingsteuerelemente in einem Steuerelement angezeigt werden, das die Paginierung unterstützt. Wenn Sie die Paging-Steuerelemente ausblenden möchten, legen Sie die Visible Eigenschaft auf false.

Der Wert dieser Eigenschaft wird im Ansichtszustand gespeichert.

Gilt für

Siehe auch