HideSelection Property

TreeView.HideSelection Property


Gets or sets a value indicating whether the selected tree node remains highlighted even when the tree view has lost the focus.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

Public Property HideSelection As Boolean

Property Value

Type: System.Boolean

true if the selected tree node is not highlighted when the tree view has lost the focus; otherwise, false. The default is true.

When this property is set to false, selected nodes in the TreeView control remain highlighted in a different color than the current selection color when the TreeView control loses focus. You can use this property to keep items that are selected by the user visible when the user clicks a different control on the form or moves to a different window.


If you are concerned with the accessibility of your applications, it is recommended that you set the HideSelection property to false.

The following code example demonstrates how to use the HideSelection property. To run this example, paste the following code in a form and call the InitializeSelectedTreeView method in the form's constructor or Load event handler.

' Declare the TreeView control.
Friend WithEvents TreeView2 As System.Windows.Forms.TreeView

' Initialize the TreeView to blend with the form, giving it the 
' same color as the form and no border.
Private Sub InitializeSelectedTreeView()

    ' Create a new TreeView control and set the location and size.
    Me.TreeView2 = New System.Windows.Forms.TreeView
    Me.TreeView2.Location = New System.Drawing.Point(72, 48)
    Me.TreeView2.Size = New System.Drawing.Size(200, 200)
    Me.TreeView2.BorderStyle = BorderStyle.Fixed3D

    ' Set the HideSelection property to false to keep the 
    ' selection highlighted when the user leaves the control. 
    Me.TreeView2.HideSelection = False

    ' Add the nodes.
    Me.TreeView2.Nodes.AddRange(New System.Windows.Forms.TreeNode() _
        {New System.Windows.Forms.TreeNode("Features", _
        New System.Windows.Forms.TreeNode() _
        {New System.Windows.Forms.TreeNode("Full Color"), _
        New System.Windows.Forms.TreeNode("Project Wizards"), _
        New System.Windows.Forms.TreeNode("Visual C# and Visual Basic Support")}), _
        New System.Windows.Forms.TreeNode("System Requirements", _
        New System.Windows.Forms.TreeNode() _
        {New System.Windows.Forms.TreeNode _
        ("Pentium 133 MHz or faster processor "), _
        New System.Windows.Forms.TreeNode("Windows 98 or later"), _
        New System.Windows.Forms.TreeNode("100 MB Disk space")})})

    ' Set the tab index and add the TreeView to the form.
    Me.TreeView2.TabIndex = 0
End Sub

.NET Framework
Available since 1.1
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