Exemple #1
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 internal override void Undo()
 {
     TargetDrawing?.ChangeClassBackgroundColor(_prevColor);
 }
Exemple #2
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 internal override void Redo()
 {
     TargetDrawing?.ChangeClassBackgroundColor(_color);
 }
Exemple #3
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 public override bool Execute()
 {
     TargetDrawing?.ChangeClassBackgroundColor(_color);
     return(true);
 }