NextPreviousPagerField.ShowPreviousPageButton Eigenschap

Definitie

Naamruimte:
System.Web.UI.WebControls
Assembly:
System.Web.Extensions.dll

Hiermee wordt een waarde opgehaald of ingesteld die aangeeft of de knop vorige pagina wordt weergegeven in een NextPreviousPagerField object.

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

Waarde van eigenschap

Boolean

trueals de knop vorige pagina wordt weergegeven in een NextPreviousPagerField object; anders. false De standaardwaarde is true.

Voorbeelden

In het volgende voorbeeld ziet u hoe u de ShowPreviousPageButton eigenschap gebruikt om op te geven dat de knop vorige pagina niet mag worden weergegeven.

<%@ 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 id="Head1" runat="server">
    <title>NextPreviousPagerField Example</title>
  </head>
  <body>
    <form id="form1" runat="server">
        
      <h3>NextPreviousPagerField Example</h3>
          
      <asp:ListView ID="ContactsListView" 
        DataSourceID="ContactsDataSource"
        runat="server">
        <LayoutTemplate>
          <table cellpadding="2" width="640px" border="1" runat="server" id="tblContacts">
            <tr id="itemPlaceholder" runat="server">
            </tr>
          </table>
          <asp:DataPager runat="server" ID="ContactsDataPager" PagedControlID="ContactsListView">
            <Fields>
              <asp:NextPreviousPagerField 
                ButtonType="Button" 
                ShowFirstPageButton="True"
                ShowNextPageButton="False" 
                ShowPreviousPageButton="False" />
                
              <asp:NumericPagerField />
              
              <asp:NextPreviousPagerField 
                ButtonType="Button" 
                ShowLastPageButton="True"
                ShowNextPageButton="False" 
                ShowPreviousPageButton="False" />
            </Fields>
          </asp:DataPager>
        </LayoutTemplate>
        <ItemTemplate>
          <tr runat="server">
            <td>
              <asp:Label ID="ContactIDLabel" runat="server" Text='<%#Eval("ContactID") %>' />
            </td>            
            <td>
              <asp:Label ID="FirstNameLabel" runat="server" Text='<%#Eval("FirstName") %>' />
            </td>
            <td>
              <asp:Label ID="LastNameLabel" runat="server" Text='<%#Eval("LastName") %>' />
            </td>
          </tr>
        </ItemTemplate>
      </asp:ListView>

      <!-- This example uses Microsoft SQL Server and connects      -->
      <!-- to the AdventureWorks sample database. Use an ASP.NET    -->
      <!-- expression to retrieve the connection string value       -->
      <!-- from the Web.config file.                                -->
      <asp:SqlDataSource ID="ContactsDataSource" runat="server" 
            ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
            SelectCommand="SELECT [ContactID], [FirstName], [LastName] FROM Person.Contact">
      </asp:SqlDataSource>
      
    </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 id="Head1" runat="server">
    <title>NextPreviousPagerField Example</title>
  </head>
  <body>
    <form id="form1" runat="server">
        
      <h3>NextPreviousPagerField Example</h3>
          
      <asp:ListView ID="ContactsListView" 
        DataSourceID="ContactsDataSource"
        runat="server">
        <LayoutTemplate>
          <table cellpadding="2" width="640px" border="1" runat="server" id="tblContacts">
            <tr id="itemPlaceholder" runat="server">
            </tr>
          </table>
          <asp:DataPager runat="server" ID="ContactsDataPager" PagedControlID="ContactsListView">
            <Fields>
              <asp:NextPreviousPagerField 
                ButtonType="Button" 
                ShowFirstPageButton="True"
                ShowNextPageButton="False" 
                ShowPreviousPageButton="False" />
                
              <asp:NumericPagerField />
              
              <asp:NextPreviousPagerField 
                ButtonType="Button" 
                ShowLastPageButton="True"
                ShowNextPageButton="False" 
                ShowPreviousPageButton="False" />
            </Fields>
          </asp:DataPager>
        </LayoutTemplate>
        <ItemTemplate>
          <tr runat="server">
            <td>
              <asp:Label ID="ContactIDLabel" runat="server" Text='<%#Eval("ContactID") %>' />
            </td>            
            <td>
              <asp:Label ID="FirstNameLabel" runat="server" Text='<%#Eval("FirstName") %>' />
            </td>
            <td>
              <asp:Label ID="LastNameLabel" runat="server" Text='<%#Eval("LastName") %>' />
            </td>
          </tr>
        </ItemTemplate>
      </asp:ListView>

      <!-- This example uses Microsoft SQL Server and connects      -->
      <!-- to the AdventureWorks sample database. Use an ASP.NET    -->
      <!-- expression to retrieve the connection string value       -->
      <!-- from the Web.config file.                                -->
      <asp:SqlDataSource ID="ContactsDataSource" runat="server" 
            ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
            SelectCommand="SELECT [ContactID], [FirstName], [LastName] FROM Person.Contact">
      </asp:SqlDataSource>
      
    </form>
  </body>
</html>

Opmerkingen

Gebruik de ShowPreviousPageButton eigenschap om de knop vorige pagina van een NextPreviousPagerField object weer te geven of te verbergen.

De waarde van deze eigenschap wordt opgeslagen in viewstate.

Van toepassing op

Zie ook