private void DeleteButtonCommandExecute()
 {
     if (!ContactViewInForm.Any())
     {
         return;
     }
     ContactViewInForm.RemoveAt(SelectedIndex);
 }
 private void CopyButtonCommandExecute()
 {
     if (!ContactViewInForm.Any())
     {
         return;
     }
     if (SelectedIndex == ContactViewInForm.Count - 1)
     {
         ContactViewInForm.Add((ContactViewInForm)ContactViewInForm[SelectedIndex].Clone());
     }
     else
     {
         ContactViewInForm.Insert(SelectedIndex + 1, (ContactViewInForm)ContactViewInForm[SelectedIndex].Clone());
     }
 }
 private void AddButtonCommandExecute()
 {
     ContactViewInForm.Add(new ContactViewInForm());
 }