C# StringBuilder: How to manipulate a string into counter?

Question

Dear Team,

 

I need to manipulate the following StringBuilder (from a ZPL Printer Code):

 

 StringBuilder objectNumber = new StringBuilder("0001");

 

because I habe a GUI and on it there are 2 input fields:

 

- a StartObjectNumber (as integer instatiated), which starts from "0001"

- a  EndObjectNumber (as integer instatiated), which for example ends with "9999"

 

that's why it must count from "0001" to "9999" so that the programm prints the following tickets:

 

"0001", "0002", "0003" 

 

Question: shall I somehow convert objectNumber in integer? So that I can count from 0001 to 9999?

 

Here my code:

 

StringBuilder objectNumber = new StringBuilder("0001");

for (int i = BranchOffice.StartObjectNumber; i < BranchOffice.EndObjectNumber; i++)

{ 

ZPLString =

"^XA" +

"^PON" +

"^LH0,0" +

"^CI13^LRY" +

"^FT110,150^BY2^BCN,100,N,N,N^FD01000100010011^FS" +

"^FT70,230^A0N,60,60^FD01 0001 0001 " + objectNumber + "^FS" +

"^PR4" +

"^XZ";

byte[] sendBytes = Encoding.GetEncoding("Cp850").GetBytes(ZPLString);

stream.Write(sendBytes, 0, sendBytes.Length);

}

 

This code makes me only print more tickets but the content "0001" doesnt change.

I would like to print more tickets as the programm already does but it must count from "0001" to "9999".

I hope you can help m3.

Thank you in advance