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TreeView.FullRowSelect Property

Gets or sets a value indicating whether the selection highlight spans the width of the tree view control.

[Visual Basic]
Public Property FullRowSelect As Boolean
[C#]
public bool FullRowSelect {get; set;}
[C++]
public: __property bool get_FullRowSelect();
public: __property void set_FullRowSelect(bool);
[JScript]
public function get FullRowSelect() : Boolean;
public function set FullRowSelect(Boolean);

Property Value

true if the selection highlight spans the width of the tree view control; otherwise, false. The default is false.

Remarks

When FullRowSelect is true, a selection highlight spans the entire width of the tree view, display rather than the width of just the tree node label. The FullRowSelect property is ignored if ShowLines is set to true.

Example

[Visual Basic, C#, C++] The following example illustrates a customized TreeView. By inheriting the TreeView class, this custom version has all the functionality of a normal TreeView. Changing various property values in the constructor provides a unique appearance. Because the ShowPlusMinus property is set to false, the customized control also overrides the OnAfterSelect method so nodes can be expanded and collapsed when they are clicked.

[Visual Basic, C#, C++] A control that is customized in this way can be used throughout an organization, making it easy to provide a consistent interface without requiring the control properties to be specified in each individual project.

[Visual Basic] 
Public Class CustomizedTreeView
    Inherits TreeView

    Public Sub New()
        ' Customize the TreeView control by setting various properties.
        BackColor = System.Drawing.Color.CadetBlue
        FullRowSelect = True
        HotTracking = True
        Indent = 34
        ShowPlusMinus = False

        ' The ShowLines property must be false for the FullRowSelect 
        ' property to work.
        ShowLines = False
    End Sub 'New


    Protected Overrides Sub OnAfterSelect(ByVal e As TreeViewEventArgs)
        ' Confirm that the user initiated the selection.
        ' This prevents the first node from expanding when it is
        ' automatically selected during the initialization of 
        ' the TreeView control.
        If e.Action <> TreeViewAction.Unknown Then
            If e.Node.IsExpanded Then
                e.Node.Collapse()
            Else
                e.Node.Expand()
            End If
        End If

        ' Remove the selection. This allows the same node to be
        ' clicked twice in succession to toggle the expansion state.
        SelectedNode = Nothing
    End Sub 'OnAfterSelect

End Class 'CustomizedTreeView 

[C#] 
public class CustomizedTreeView : TreeView
{
    public CustomizedTreeView()
    {
        // Customize the TreeView control by setting various properties.
        BackColor = System.Drawing.Color.CadetBlue;
        FullRowSelect = true;
        HotTracking = true;
        Indent = 34;
        ShowPlusMinus = false;

        // The ShowLines property must be false for the FullRowSelect 
        // property to work.
        ShowLines = false;
    }

    protected override void OnAfterSelect(TreeViewEventArgs e)
    {
        // Confirm that the user initiated the selection.
        // This prevents the first node from expanding when it is
        // automatically selected during the initialization of 
        // the TreeView control.
        if (e.Action != TreeViewAction.Unknown)
        {
            if (e.Node.IsExpanded) 
            {
                e.Node.Collapse();
            }
            else 
            {
                e.Node.Expand();
            }
        }

        // Remove the selection. This allows the same node to be
        // clicked twice in succession to toggle the expansion state.
        SelectedNode = null;
    }

}

[C++] 
public __gc class CustomizedTreeView : public TreeView
{
public:
    CustomizedTreeView()
    {
        // Customize the TreeView control by setting various properties.
        BackColor = System::Drawing::Color::CadetBlue;
        FullRowSelect = true;
        HotTracking = true;
        Indent = 34;
        ShowPlusMinus = false;

        // The ShowLines property must be false for the FullRowSelect
        // property to work.
        ShowLines = false;
    }

protected:
    void OnAfterSelect(TreeViewEventArgs* e)
    {
        // Confirm that the user initiated the selection.
        // This prevents the first node from expanding when it is
        // automatically selected during the initialization of
        // the TreeView control.
        if (e->Action != TreeViewAction::Unknown)
        {
            if (e->Node->IsExpanded)
            {
                e->Node->Collapse();
            }
            else
            {
                e->Node->Expand();
            }
        }

        // Remove the selection. This allows the same node to be
        // clicked twice in succession to toggle the expansion state.
        SelectedNode = 0;
    }

};

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

TreeView Class | TreeView Members | System.Windows.Forms Namespace

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