crc

MainWindow.xaml.cs

@@ -105,6 +105,10 @@ namespace SUNLIGHT_CDKEY
 
         private void Button_Click(object sender, RoutedEventArgs e)
         {
+            string a, b;
+
+            a= sn_id.Text.Substring(0, 6);
+            b=(2255-y).ToString()+(255-m).ToString()+(255-d).ToString();
 
             cdk.Text = a + b + CRCcheck16.ToCRC16(CRCcheck16.StringToHexByte(b), true);
         }