How to subtract datagridview time and systime time in C#

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Hello Guys,i hope you will be fine,well my issue is I want to know how to subtract (minus) data grid view DateTime to system date and time actually I want result in hh mm ss am not pm or actual time I want to know if someone call me so how much time before he called me on my phone .
Thanks

What I have tried:

int i;
int j;
int y;
i =datagridview.currentrow.cell[4].value.tostring()
j = system.datetime.now.tostring();
y = (i - j)
textbox1.text = y.tostring;

Posted 16-Jun-17 3:24am

Member 9983063

Updated 16-Jun-17 3:33am

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F-ES Sitecore 16-Jun-17 9:30am

Don't process the rendered cell values as you have no guarantee what is in them, you need to access the underlying data the gridview is bound to. You can access this via the RowDataBound event, an example is here.

Hopefully the data will be in DateTime so you just subtract the two values and use .ToString on the result to get it in the format you want. Google "c# subtract datetime values" and I'm sure you'll find examples.

Richard Deeming 16-Jun-17 10:31am

REPOST
You have already posted this:
https://www.codeproject.com/Questions/1191779/How-to-subtract-datagridview-column-time-and-syste[^]

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OriginalGriff · Answer 1 · 2017-06-16T03:33:00

Stop converting to strings, and convert to DateTime instead:
If your value in the DatagridView is a DateTime, then use it directly:

C#

DateTime i = (DateTime) datagridview.currentrow.cell[4].value;

If it's a string, then Parse it:

C#

DateTime i;
if (!DateTime.TryParse(datagridview.currentrow.cell[4].value.ToString(), out i))
   {
   // Report a problem to user or log it
   ...
   return;
   }

Then you can just subtract:

C#

Timespan diff = i - DateTime.Now;
textbox1.Text = diff.Days.ToString();

If you don't want days, then there are other options: TimeSpan Properties (System)[^]