Import text files with variables

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Hi,
I am somewhat beginner in coding. My question seem easy, but...
I wrote an application to send some special text to a printer (a Zebra printer, the text is a ZPL code).

What I have tried:

I definded a string in the app combined with some variables.
My question is: there is the string with a variable:

"^XA~JSB^MMC^MNN^MTT^PW365^LL690^POI^PMN^LH0,0^PR2,2^JUS^LRN^CI0^XZ"
"^XA"
"^FB330,1,,C^FO0,493^A0n,31,31^F8^FD" + LATK + "^FS"
"^XZ"
"^XA"
"^IDE:*.*"
"^IDR:*.*"
"^XZ"

I would like to put this string in a separate text file.
In the app I would like to read the text file, assign a value to the LATK variable from the text file, and then send it to the printer. The question is, how could I evaluate the string with the variables to get this

^XA~JSB^MMC^MNN^MTT^PW365^LL690^POI^PMN^LH0,0^PR2,2^JUS^LRN^CI0^XZ
^XA
^FB330,1,,C^FO0,493^A0n,31,31^F8^FD1158037-AB^FS
^XZ
^XA
^IDE:*.*
^IDR:*.*
^XZ

thanks.
Appreciate any aswers.

Posted 13-Oct-20 8:41am

Robiji

Updated 13-Oct-20 10:32am

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OriginalGriff · Answer 1 · 2020-10-13T10:32:00

Solution 1

The way I'd do it is to add format markers:

C#

string putThisToFile = "fixed text:{0}:more fixed text";
string LATK = "variable text";
string result = string.Format(putThisToFile, LATK);

The result you get is:

fixed text:variable text:more fixed text

Make sense?

Posted 13-Oct-20 10:32am

OriginalGriff