void AddPhrase_ExecuteTargets(object obj)
 {
     if (mConvesationTree.SelectedItem is PhraseProxy)
     {
         PhraseProxy phrase = new PhraseProxy();
         phrase.Text = "Text";
         CommandManager.Execute(new AddPhrase(mConvesationTree.SelectedItem as PhraseProxy, phrase));
     }
     else
     {
         PhraseProxy phrase = new PhraseProxy();
         phrase.Text = "Text";
         CommandManager.Execute(new AddPhrase(mConversation, phrase));
     }
 }
 void AddPhrase_ExecuteTargets(object obj)
 {
     if (mConvesationTree.SelectedItem is PhraseProxy)
     {
         PhraseProxy phrase = new PhraseProxy();
         phrase.Text = "Text";
         CommandManager.Execute(new AddPhrase(mConvesationTree.SelectedItem as PhraseProxy, phrase));
     }
     else
     {
         PhraseProxy phrase = new PhraseProxy();
         phrase.Text = "Text";
         CommandManager.Execute(new AddPhrase(mConversation, phrase));
     }
 }