TreeNodeBinding.ImageToolTipField Property
Assembly: System.Web (in system.web.dll)
/** @property */ public String get_ImageToolTipField () /** @property */ public void set_ImageToolTipField (String value)
public function get ImageToolTipField () : String public function set ImageToolTipField (value : String)
Property Value
The name of the field to bind to the ImageToolTip property of a TreeNode object to which the TreeNodeBinding object is applied. The default is an empty string (""), which indicates that the ImageToolTipField property is not set.When the TreeView control is bound to a data source, use the ImageToolTipField property to specify the field name to bind to the ImageToolTip property of a TreeNode object. The text that you specify provides Assistive Technology devices with a description of the image that can be used to make the control more accessible.
This binding relationship affects all TreeNode objects to which the TreeNodeBinding object is applied. When an image is displayed next to a node, the ToolTip text is displayed when the mouse pointer is positioned over the image.
Note |
|---|
| You can selectively override the ImageToolTipField property by setting the ImageToolTip property of each node directly. |
Instead of using the ImageToolTipField property to bind the ImageToolTip property of a TreeNode object to a field, you can set the ImageToolTip property to a fixed value by setting the ImageToolTip property.
Note |
|---|
| 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 ImageToolTipField property to specify which attribute of an XML element to bind to the ImageToolTip 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 example demonstrates how to use the ImageToolTipField property to specify which attribute of an XML element to bind to the ImageToolTip 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.
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>
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.
Reference
TreeNodeBinding ClassTreeNodeBinding Members
System.Web.UI.WebControls Namespace
TreeView
TreeNode Class
DataBindings
TreeNodeBinding.DataMember Property
TreeNodeBinding.Depth Property
TreeNode.ImageUrl Property
TreeNodeBinding.ImageUrl
ImageUrlField
TreeNodeBinding.ImageToolTip Property
TreeNode.NavigateUrl Property
TreeNodeBinding.NavigateUrl
NavigateUrlField
TreeNode.Text Property
TreeNodeBinding.Text
TextField
TreeNode.ToolTip Property
TreeNodeBinding.ToolTip
TreeNode.Value Property
TreeNodeBinding.Value
ValueField
Note