NumericPagerField Konstruktor

  • Referenz

Definition

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

Initialisiert eine neue Instanz der NumericPagerField-Klasse.

public:
 NumericPagerField();
public NumericPagerField ();
Public Sub New ()

Beispiele

Das folgende Beispiel zeigt, wie Sie den Konstruktor verwenden, um einem DataPager Steuerelement dynamisch ein NumericPagerField Objekt hinzuzufügen.

<%@ 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">

  // <Snippet2>  
  void Page_Load(Object sender, EventArgs e)
  {

    // Dynamically generated field pagers need to be created only 
    // the first time the page is loaded.
    if (!IsPostBack)
    {

      //Find the DataPager control within the ListView control.
      DataPager pagerControl = 
        (DataPager) ContactsListView.FindControl("ContactsDataPager");
      
      // Create a NumericPagerField object to display
      // the page numbers to navigate.
      NumericPagerField pagerField = new NumericPagerField();
      pagerField.ButtonCount = 15;
      pagerField.ButtonType = ButtonType.Button;

      // Add the pager field to the Fields collection of the
      // DataPager control.
      pagerControl.Fields.Add(pagerField);
    }

    ContactsListView.DataBind();
  
  }
  // </Snippet2>
  
</script>
    
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head id="Head1" runat="server">
    <title>NumericPagerField Constructor Example</title>
  </head>
  <body>
    <form id="form1" runat="server">
        
      <h3>NumericPagerField Constructor Example</h3>
          
      <asp:ListView ID="ContactsListView" 
        DataSourceID="ContactsDataSource"
        runat="server">
        <LayoutTemplate>
          <asp:Panel runat="server" ID="Panel1" BorderStyle="Groove">
            <asp:Label runat="server" ID="itemPlaceholder"></asp:Label>
          </asp:Panel>
          <br />
          <asp:DataPager runat="server" 
            PageSize="25"
            ID="ContactsDataPager" />      
        </LayoutTemplate>
        <ItemTemplate>
          <asp:Label runat="server" ID="NameLabel" 
            Text='<%#Eval("LastName") + ", " + Eval("FirstName")%>' />
          <br />
        </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
          ORDER BY [LastName]">
      </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">
    
<script runat="server">

   ' <Snippet2>
  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
      
    ' Dynamically generated field pagers need to be created only 
    ' the first time the page is loaded.
    If Not IsPostBack Then
        
      'Find the DataPager control within the ListView control.
      Dim pagerControl As DataPager = _
          CType(ContactsListView.FindControl("ContactsDataPager"), DataPager)
      
      ' Create a NumericPagerField object to display
      ' the page numbers to navigate.
      Dim pagerField As New NumericPagerField()
      pagerField.ButtonCount = 15
      pagerField.ButtonType = ButtonType.Button
      
      ' Add the pager field to the Fields collection of the
      ' DataPager control.
      pagerControl.Fields.Add(pagerField)
    End If
    
    ContactsListView.DataBind()

  End Sub
  ' </Snippet2>
    
</script>
    
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head id="Head1" runat="server">
    <title>NumericPagerField Constructor Example</title>
  </head>
  <body>
    <form id="form1" runat="server">
        
      <h3>NumericPagerField Constructor Example</h3>
          
      <asp:ListView ID="ContactsListView" 
        DataSourceID="ContactsDataSource"
        runat="server">
        <LayoutTemplate>
          <asp:Panel runat="server" ID="Panel1" BorderStyle="Groove">
            <asp:Label runat="server" ID="itemPlaceholder"></asp:Label>
          </asp:Panel>
          <br />
          <asp:DataPager runat="server" 
            PageSize="25"
            ID="ContactsDataPager" />      
        </LayoutTemplate>
        <ItemTemplate>
          <asp:Label runat="server" ID="NameLabel" 
            Text='<%#Eval("LastName") & ", " & Eval("FirstName")%>' />
          <br />
        </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
          ORDER BY [LastName]">
      </asp:SqlDataSource>
      
    </form>
  </body>
</html>

Hinweise

Dieser Konstruktor wird in der Regel verwendet, wenn Sie einem dynamisch erstellten DataPager Steuerelement Felder hinzufügen.

Wenn Sie einem Steuerelement ein NumericPagerField Objekt dynamisch hinzufügen möchten, erstellen Sie ein neues NumericPagerField Objekt, legen Sie dessen Eigenschaften fest, und fügen Sie es der Feldauflistung für das DataPager Steuerelement DataPager hinzu.

Gilt für

Siehe auch