Button button2 = new Button { Width=30,Height=30, Content="HelloWorld", Background=new SolidColorBrush(Colors.Black) };
this.gdAA.Children.Add(button2);
Button button2 = new Button { Width=30,Height=30, Content="HelloWorld", Background=new SolidColorBrush(Colors.Black) };
this.gdAA.Children.Add(button2);