loop two variabels untill a specific count in c#.net

Question

HI,

 

 

I NEED YOUR HELP TO FIND A SOLUTION IN C#.net  WINDOWS Application .

 

am getting an error while i do some function using dataRow.

 

This is the code :-

 

// dataRow declaration: -

 

 

 

The code to fetch value to variables: -

 

 

 

my problem is to loop between qty ,opstock and  pQty.

 

suppose the qty=15 , pQty =6  and opstock=3 , I want to loop  opstock and pQty untill reach same as qty(i.e 15), hot it possible?