/// <summary>
 /// Clears whole text from result space.
 /// </summary>
 private void Clear_ResultSpace()
 {
     ResultSpace.Clear();
 }
 /// <summary>
 /// Clears current text in result space and adds given text.
 /// </summary>
 /// <param name="new_ResultSpace_Text"></param>
 private void Reset_ResultSpace_Text(string new_ResultSpace_Text)
 {
     ResultSpace.Clear();
     ResultSpace.Text = new_ResultSpace_Text;
 }