Category / Section
How to perform undo or redo functionality in WinForms TreeViewAdv using HistoryManager property?
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Undo and Redo
The user should get the HistoryManager to use and then the HistoryEnabled property should be set to true. The HistoryManager plays the role in the Undo or Redo actions.
The Undo and Redo functionality of a TreeViewAdv does the following actions:
1. Deleting a node
2. Adding a node
3. Editing node's Text
4. Drag and drop of a node
C#
private void barItem1_Click(object sender, System.EventArgs e)
{
if(this.treeViewAdv1.HistoryManager.CanUndo==true)
{
this.treeViewAdv1.HistoryManager.Undo();
}
}
private void barItem2_Click(object sender, System.EventArgs e)
{
if(this.treeViewAdv1.HistoryManager.CanRedo==true)
{
this.treeViewAdv1.HistoryManager.Redo();
}
}
VB
Private Sub barItem1_Click(ByVal sender As Object, ByVal e As System.EventArgs) If Me.treeViewAdv1.HistoryManager.CanUndo=True Then Me.treeViewAdv1.HistoryManager.Undo() End If End Sub Private Sub barItem2_Click(ByVal sender As Object, ByVal e As System.EventArgs) If Me.treeViewAdv1.HistoryManager.CanRedo=True Then Me.treeViewAdv1.HistoryManager.Redo() End If End Sub
Reference link: https://help.syncfusion.com/windowsforms/treeview/history-manager
