Dynamic TextBox Focus not working silverlight

Dynamic TextBox Focus not working silverlight

I have created custom textbox in that textbox i can access all the property like set background color set border brush and all that but my problem is that when i tried to focus on that custom textbox it will not worked,is there any extra work i have to do for focus on textbox? please help me out of this. my custom textbox look like

 public class ATSTextBox : TextBox, INotifyPropertyChanged {  // some code here  } protected override void OnGotFocus(RoutedEventArgs e)     {       //some code here     } 

// Actul OnGotFocus Method lokk like

protected override void OnGotFocus(RoutedEventArgs e)     {         this.Background = new SolidColorBrush(Color.FromArgb(255, 197, 197, 197));         if (this.GotoLinks.Count > 0)         {             this.Button.Visibility = System.Windows.Visibility.Visible;             ActualLeft = (double)this.GetValue(Canvas.LeftProperty);             this.SetValue(Canvas.LeftProperty, ActualLeft - 70);          }          this.SelectionStart = 0;         this.SelectionLength = this.Text.Length;         //OnPropertyChanged("ShowGotoLink");         base.OnGotFocus(e);     } 

Answers & Comments...

---