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TreeNodeBinding.NavigateUrlField Property

Gets or sets the name of the field from the data source to bind to the NavigateUrl property of a TreeNode object to which the TreeNodeBinding object is applied.

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

[TypeConverterAttribute("System.Web.UI.Design.DataSourceViewSchemaConverter, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
public string NavigateUrlField { get; set; }

Property Value

Type: System.String
The name of the field to bind to the NavigateUrl property of a TreeNode object to which the TreeNodeBinding object is applied. The default is an empty string (""), which indicates that the NavigateUrlField property is not set.

When the TreeView control is bound to a data source, use the NavigateUrlField property to specify the field name to bind to the NavigateUrl property of a TreeNode object. This binding relationship affects all TreeNode objects to which the TreeNodeBinding object is applied. When the NavigateUrlField property is set, the TreeView control displays a hyperlink for the text of the node, instead of plain text. You can also optionally set the Target property to specify the window or frame in which to display the linked content.

NoteNote

You can selectively override the NavigateUrlField property by setting the NavigateUrl property of each node directly.

Instead of using the NavigateUrlField property to bind the NavigateUrl property of a TreeNode object to a field, you can set the NavigateUrl property to a fixed value by setting the NavigateUrl property.

NoteNote

If the data source contains multiple fields, you must first set the Depth or DataMember property, or both properties in order to bind to the appropriate field.

The value of this property is stored in view state.

This section contains two code examples. The first code example demonstrates how to use the NavigateUrlField property to specify which attribute of an XML element to bind to the NavigateUrl property of a TreeNode object to which the TreeNodeBinding object is applied. The second code example provides sample XML data for the first code example.

The following code example demonstrates how to use the NavigateUrlField property to specify which attribute of an XML element to bind to the NavigateUrl property of a TreeNode object to which the TreeNodeBinding object is applied. For this example to work correctly, you must copy the sample XML data, provided after this code example, to a file named Booklist.xml.


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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>TreeViewBinding Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <h3>TreeViewBinding Example</h3>

      <!-- Set the TextField, ImageUrlField, NavigateUrlField, -->
      <!-- ValueField, and ToolTipField properties of a    -->
      <!-- TreeNodeBinding object declaratively.         -->
      <asp:TreeView id="BookTreeView" 
        DataSourceID="BookXmlDataSource"
        Target="_blank" 
        runat="server">

        <DataBindings>
          <asp:TreeNodeBinding DataMember="Books" 
            Depth="0" 
            TextField="Text"/>
          <asp:TreeNodeBinding DataMember="Book" 
            Depth="1" 
            TextField="Text" 
            ImageUrlField="Image"
            ImageToolTipField="ImageToolTip" 
            NavigateUrlField="Nav" 
            ValueField="Value" 
            ToolTipField="Tip"/>
          <asp:TreeNodeBinding DataMember="Description" 
            Depth="2" 
            TextField="Text"/>
          <asp:TreeNodeBinding DataMember="Price" 
            Depth="2" 
            TextField="Value"/>
        </DataBindings>

      </asp:TreeView>

      <asp:XmlDataSource id="BookXmlDataSource"  
        DataFile="Booklist.xml"
        runat="server">
      </asp:XmlDataSource>

    </form>
  </body>
</html>

The following code example provides sample XML data for the preceding code example.

<Books Text="Books List">
    <Book Text="Book Title One"
        Value="1" 
        Image="Bookimage1.jpg"
        ImageToolTip="Book 1 Photo" 
        Nav="http://www.microsoft.com"
        Tip="Book Title 1">
        <Description Text="Book Description">
        </Description>
        <Price Value="$1.99">
        </Price>
        <Author Text="Author Name"
            Value="LastName" 
            Image="Authorimage1.jpg" 
            Nav="http://www.microsoft.com"
            Tip="Author Name">
        </Author>
    </Book>
    <Book Text="Book Title Two"
        Value="2" 
        Image="Bookimage2.jpg"
        ImageToolTip="Book 2 Photo" 
        Nav="http://www.microsoft.com"
        Tip="Click Me">
        <Description Text="Book Description">
        </Description>
        <Price Value="$2.99">
        </Price>
        <Author Text="Author Name"
            Value="LastName" 
            Image="Authorimage2.jpg" 
            Nav="http://www.microsoft.com"
            Tip="Author Name">
        </Author>
    </Book>
</Books>

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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