Handle negative time spans

Question

In my output of a grid, I calculate a TimeSpan and take its TotalHours. e.g.

(Eval(\"WorkedHours\") - Eval(\"BadgedHours\")).TotalH         


        

Answer 1

I checked to every where.But i didnt get a correct answer that why i used this way to finish

TimeSpan diff = actualout.Subtract(actualin);
 string a =(diff.ToString()).ToString();
if(a.Contains("-"))
 {        
 diff = new TimeSpan(0,0,0,0);
}