ActiveReports 12
UndoCount Property
Example 

GrapeCity.ActiveReports.Design.Win.v12 Assembly > GrapeCity.ActiveReports.Design Namespace > UndoManager Class : UndoCount Property
Returns the number of undone actions.
Syntax
'Declaration
 
Public ReadOnly Property UndoCount As Integer
public int UndoCount {get;}

Property Value

Integer.
Example
If(this.ardMain.UndoManager.UndoCount == 0 )
{
    this.tSTDUndo.Enabled = False;
    this.mnuEditUndo.Enabled = False;
}
Else
{
    this.tSTDUndo.Enabled = True;
    this.mnuEditUndo.Enabled = True;
}
If Me.ardMain.UndoManager.UndoCount = 0 Then
    Me.tSTDUndo.Enabled = False
    Me.mnuEditUndo.Enabled = False
Else
    Me.tSTDUndo.Enabled = True
    Me.mnuEditUndo.Enabled = True
End If
See Also

Reference

UndoManager Class
UndoManager Members