Category / Section
How to perform undo or redo functionality using HistoryManager property in WinForms TreeViewAdv ?
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)
{
this.treeViewAdv1.HistoryManager.Undo();
}
}
private void barItem2_Click(object sender, System.EventArgs e)
{
if (this.treeViewAdv1.HistoryManager.CanRedo)
{
this.treeViewAdv1.HistoryManager.Redo();
}
}VB
Private Sub barItem1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
If Me.treeViewAdv1.HistoryManager.CanUndo 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 Then
Me.treeViewAdv1.HistoryManager.Redo()
End If
End SubReference link: HistoryManager