Barcode and TAB function between two field

Hi Everybody!

I have a problem. I created a barcode generator (personal card) in visual studio.

BUT I don't know how can I put the tabulator after the field or between two field?

I have got two field, username and password field. I would like to a TAB between field1 and field2.

I tried this way.. but doesn't work.. Here is two field >>

textEncoded.Text = BarcodeConverter128.StringToBarcode(textToConvert.Text);
convertType = CalculateConvertType(textToConvert.Text, 1);
textEncoded2.Text = BarcodeConverter128.StringToBarcode(textToConvert2.Text);
convertType = CalculateConvertType(textToConvert2.Text, 1);

And I want TAB between these filed. I tried this but the result doesn't work. 

  textEncoded3.Text = textEncoded.Text + (char)9 + textEncoded2.Text;
  lblBarcode.Text = textEncoded3.Text;

Here is the result > http://kepfeltoltes.hu/150429/7320656361_www.kepfeltoltes.hu_.jpg

There is TAB but it's not in the barcode.

I hope Somebody knows the answer because I tried everything...

Thank you!

G.