TreeNodeBindingCollection.Insert(Int32, TreeNodeBinding) Yöntem

  • Başvuru

Tanım

Ad Alanı:
System.Web.UI.WebControls
Bütünleştirilmiş Kod:
System.Web.dll

Belirtilen nesneyi belirtilen TreeNodeBinding dizin konumundaki nesneye TreeNodeBindingCollection ekler.

public:
 void Insert(int index, System::Web::UI::WebControls::TreeNodeBinding ^ binding);
public void Insert (int index, System.Web.UI.WebControls.TreeNodeBinding binding);
member this.Insert : int * System.Web.UI.WebControls.TreeNodeBinding -> unit
Public Sub Insert (index As Integer, binding As TreeNodeBinding)

Parametreler

index
Int32

öğesinin eklendiği TreeNodeBindingsıfır tabanlı dizin konumu.

binding
TreeNodeBinding

Eklenecek TreeNodeBinding öğesi.

Örnekler

Aşağıdaki kod örneği, bir nesneye program aracılığıyla TreeNodeBindingCollection yeni TreeNodeBinding bir nesne eklemek için yönteminin nasıl kullanılacağını Insert gösterir. Bu örneğin düzgün çalışması için, bu bölümün sonunda bulunan XML verilerini Book.xml adlı bir dosyaya kopyalamanız gerekir.


<%@ 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 Page_Load(Object sender, EventArgs e)
  {

    // Use the RemoveAt method to remove the TreeNodeBinding object 
    // for the third-level nodes (index 2).
    BookTreeView.DataBindings.RemoveAt(2);

    // Create a new TreeNodeBinding object and set its properties.
    TreeNodeBinding newBinding = new TreeNodeBinding();
    newBinding.DataMember = "Section";
    newBinding.TextField = "Subject";

    // Use the Insert method to insert the TreeNodeBinding object 
    // into the DaaBindings collection at index 2.
    BookTreeView.DataBindings.Insert(2, newBinding);

  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>TreeNodeBindingCollection Insert and RemoveAt Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>TreeNodeBindingCollection Insert and RemoveAt Example</h3>
    
      <asp:TreeView id="BookTreeView" 
        DataSourceID="BookXmlDataSource"
        runat="server">
         
        <DataBindings>
          <asp:TreeNodeBinding DataMember="Book" TextField="Title"/>
          <asp:TreeNodeBinding DataMember="Chapter" TextField="Heading"/>
          <asp:TreeNodeBinding DataMember="Section" TextField="Heading"/>
        </DataBindings>
         
      </asp:TreeView>
      
      <asp:XmlDataSource id="BookXmlDataSource"  
        DataFile="Book.xml"
        runat="server">
      </asp:XmlDataSource>
    
    </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 Page_Load(ByVal sender As Object, ByVal e As EventArgs)

        ' Use the RemoveAt method to remove the TreeNodeBinding object
        ' for the third-level nodes (index 2).
        BookTreeView.DataBindings.RemoveAt(2)

        ' Create a new TreeNodeBinding object and set its properties.
        Dim newBinding As TreeNodeBinding = New TreeNodeBinding
        newBinding.DataMember = "Section"
        newBinding.TextField = "Subject"

        ' Use the Insert method to insert the TreeNodeBinding object to
        ' the DataBindings collection at index 2.
        BookTreeView.DataBindings.Insert(2, newBinding)

    End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
    <title>TreeNodeBindingCollection Insert and RemoveAt Example</title>
</head>
<body>
        <form id="form1" runat="server">
        
            <h3>TreeNodeBindingCollection Insert and RemoveAt Example</h3>
        
            <asp:TreeView id="BookTreeView" 
                DataSourceID="BookXmlDataSource"
                runat="server">
                 
                <DataBindings>
                    <asp:TreeNodeBinding DataMember="Book" TextField="Title"/>
                    <asp:TreeNodeBinding DataMember="Chapter" TextField="Heading"/>
                    <asp:TreeNodeBinding DataMember="Section" TextField="Heading"/>
                </DataBindings>
                 
            </asp:TreeView>
            
            <asp:XmlDataSource id="BookXmlDataSource"  
                DataFile="Book.xml"
                runat="server">
            </asp:XmlDataSource>
        
        </form>
    </body>
</html>

Yukarıdaki kod örneğinin XML verileri aşağıda verilmiştir.

<Book Title="Book Title">  
    <Chapter Heading="Chapter 1">  
        <Section Heading="Section 1"  
            Subject="Subject 1">  
        </Section>  
        <Section Heading="Section 2"  
            Subject="Subject 1">  
        </Section>  
    </Chapter>  
    <Chapter Heading="Chapter 2">  
        <Section Heading="Section 1"  
            Subject="Subject 1">  
        </Section>  
    </Chapter>  
</Book>

Açıklamalar

Insert belirtilen TreeNodeBinding nesneyi konumundaki nesnesine TreeNodeBindingCollection indexeklemek için yöntemini kullanın.

Alternatif olarak, yöntemini kullanarak Add nesnesini TreeNodeBinding sonuna TreeNodeBindingCollection ekleyebilirsiniz.

Şunlara uygulanır

Ayrıca bkz.