private void Btn_Enter_Click(object sender, RoutedEventArgs e)
{
String[] infix;
infix = TBK_display.Text.Split(' ');
TBK_Postorder.Text = String.Join("", InfixToPostfix(infix));
TBK_Preorder.Text = String.Join("", InfixToPrefix(infix));
//rev_postfix = InfixToPostfix(infix);
//Array.Reverse(rev_postfix);
System.Data.DataTable dt = new System.Data.DataTable();
var v = dt.Compute(TBK_display.Text, " ");
TBK_Sol_Dec.Text = v.ToString();
TBK_Sol_Bin.Text = Convert.ToString(Convert.ToInt32(v), 2);
//TBK_Preorder.Text = String.Join("", InfixToPrefix(infix));
//TBK_Preorder.Text = String.Join("", TBK_display.Text.Split(' '));
}