通过

NextPreviousPagerField 构造函数

  • 参考

定义

命名空间:
System.Web.UI.WebControls
程序集:
System.Web.Extensions.dll

初始化 NextPreviousPagerField 类的新实例。

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

示例

以下示例演示如何使用 构造函数将 对象DataPager动态添加到NextPreviousPagerField控件。

<%@ 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)
    {
      // Create a NextPreviousPagerField object to display
      // the buttons to navigate.
      NextPreviousPagerField pagerField = new NextPreviousPagerField();
      pagerField.ShowFirstPageButton = true;
      pagerField.ShowLastPageButton = true;
      pagerField.ButtonType = ButtonType.Button;

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

    ContactsListView.DataBind();
  
  }
  // </Snippet2>
  
</script>
    
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head id="Head1" runat="server">
    <title>NextPreviousPagerField Constructor Example</title>
  </head>
  <body>
    <form id="form1" runat="server">
        
      <h3>NextPreviousPagerField Constructor 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>
        </LayoutTemplate>
        <ItemTemplate>
          <tr runat="server">
            <td>
              <asp:Label ID="IDLabel" 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>

      <asp:DataPager runat="server" ID="ContactsDataPager" PagedControlID="ContactsListView" />

      <!-- 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">
    
<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
      ' Create a NextPreviousPagerField object to display
      ' the buttons to navigate.
      Dim pagerField As New NextPreviousPagerField()
      pagerField.ShowFirstPageButton = True
      pagerField.ShowLastPageButton = True
      pagerField.ButtonType = ButtonType.Button
  
      ' Add the pager field to the Fields collection of the
      ' DataPager control.
      ContactsDataPager.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>NextPreviousPagerField Constructor Example</title>
  </head>
  <body>
    <form id="form1" runat="server">
        
      <h3>NextPreviousPagerField Constructor 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>
        </LayoutTemplate>
        <ItemTemplate>
          <tr runat="server">
            <td>
              <asp:Label ID="IDLabel" 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>

      <asp:DataPager runat="server" ID="ContactsDataPager" PagedControlID="ContactsListView" />

      <!-- 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>

注解

NextPreviousPagerField使用 构造函数初始化 类的新实例NextPreviousPagerField。 向动态创建的 DataPager 控件添加字段时，通常使用此构造函数。

若要向控件动态DataPager添加NextPreviousPagerField对象，请创建新NextPreviousPagerField对象，设置其属性，然后将其添加到控件的DataPager字段集合。

适用于

另请参阅