TreeNodeBindingCollection.Item Property

Note: This property is new in the .NET Framework version 2.0.

Gets or sets the TreeNodeBinding object at the specified index in the TreeNodeBindingCollection object.

Namespace: System.Web.UI.WebControls
Assembly: System.Web (in system.web.dll)

public TreeNodeBinding this [
	int i
] { get; set; }
/** @property */
public TreeNodeBinding get_Item (int i)

/** @property */
public void set_Item (int i, TreeNodeBinding value)

JScript supports the use of indexed properties, but not the declaration of new ones.

Parameters

i

The zero-based index of the TreeNodeBinding to retrieve.

Property Value

The TreeNodeBinding at the specified index in the TreeNodeBindingCollection.

Use the Item indexer to access a TreeNodeBinding object from the TreeNodeBindingCollection object located at i using array notation. The Item indexer allows you to modify or replace a TreeNodeBinding object in the collection directly.

The following code example demonstrates how to use the Item indexer to access the items that are in a TreeNodeBindingCollection object. The TreeNodeBinding object for the third-level nodes is updated programmatically with new values. For this example to work correctly, you must copy the XML data that is located at the end of this section to a file called Book.xml.


<%@ Page Language="C#" %>

<script runat="server">

  void Page_Load(Object sender, EventArgs e)
  {

    // Use the indexer to access the TreeNodeBinding object for
    // the third-level nodes (index 2) and change the value of 
    // its TextField property to "Subject".
    BookTreeView.DataBindings[2].TextField = "Subject";

  }

</script>

<html>
  <body>
    <form runat="server">
    
      <h3>TreeNodeBindingCollection Indexer 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>


The following is the XML data for the preceding code example.

<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>

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0

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