private void Button_Click(object sender, RoutedEventArgs e)
        {
            var btn      = sender as Button;
            var dicEntry = (KeyValuePair <string, ISymbolTable>)btn.DataContext;

            var symb = SelectProjectPart.SelectSymbolTable();

            if (symb != null)
            {
                MainWindow.DictonaryConnectionSymboltables[dicEntry.Key] = symb;
            }
        }
 private void cmdLoadSymboltable_Click(object sender, EventArgs e)
 {
     mySymtable = SelectProjectPart.SelectSymbolTable();
     refresh();
 }