How to get the time-span of all the datetime data in my datagridview

Question

The scenario go\'s like that, above and this; I have a database, which I displayed on my datagridview. I already added the timespan of each row (timeIn and timeOut<

Answer 1

You have your time in and time out, so create a TimeSpan and run a loop:

TimeSpan timeSpan = new TimeSpan(0);
// for each data grid row calculate and add the timespan:
    timeSpan =+ time_Out.Subtract(time_In);
//