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NumericPagerField Konstruktor

  • Reference

Definice

Obor názvů:
System.Web.UI.WebControls
Sestavení:
System.Web.Extensions.dll

Inicializuje novou instanci NumericPagerField třídy.

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

Příklady

Následující příklad ukazuje, jak použít konstruktor k dynamickému přidání objektu NumericPagerFieldDataPager do ovládacího prvku.

<%@ 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>

Poznámky

Tento konstruktor se obvykle používá při přidávání polí do dynamicky vytvořeného DataPager ovládacího prvku.

NumericPagerField Pokud chcete do ovládacího prvku přidat objekt dynamickyDataPager, vytvořte nový NumericPagerField objekt, nastavte jeho vlastnosti a pak ho přidejte do kolekce DataPager polí ovládacího prvku.

Platí pro

Viz také