Subtract datetime column from system current time

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I am trying to subtract my DateTime column in my DataGrid from the systems current time and then if total minutes are less or equal to 60 minutes I need a MessageBox to show.

What I have tried:

C#

           DateTime end = (DateTime)value;
           DateTime curtime = DateTime.Now;

           TimeSpan span = end - curtime;
           double totalMinutes = span.TotalMinutes;

           if (totalMinutes <= 60)
           {

            MessageBoxResult result = MessageBox.Show("Need Attention", "Confirmation");
return true;
           }
           else
           {
               return false;
           }

Posted 19-Dec-19 5:30am

Member 12876243

Updated 19-Dec-19 5:54am

MadMyche

v4

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2 solutions

Solution 1

The Show for mesagge box is never executed because it's after the return statement. Try changing the order of the lines

if (totalMinutes <= 60)
{
    MessageBoxResult result = MessageBox.Show("Need Attention", "Confirmation");
    return true;
}

Also note that if this code is from inside a property, it's probably a good idea to rethink the design so that you won't show message box inside a property getter.

Posted 19-Dec-19 5:39am

Wendelius

Updated 19-Dec-19 5:40am

v2

Comments

Member 12876243 19-Dec-19 11:45am

Thanks I will correct it.. My Message box seems to display for every Time Column even if it is greater than 60 Minutes unsure on what is happening.

Wendelius 19-Dec-19 11:58am

Is this code inside a property? If it is, that's probably causing the situation, since every time the value of the property is fetched, the message box is shown.

Member 12876243 19-Dec-19 12:24pm

Code is inside a IValueConverter

Wendelius 19-Dec-19 12:46pm

This would probably cause the same effect, each time the value is converted (=queried) the message box is hit.

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OriginalGriff · Accepted Answer · 2019-12-19T05:55:00

Quote:
My Message box seems to display for every Time Column even if it is greater than 60 Minutes unsure on what is happening.

So use the debugger and see exactly what is in value, curtime, span, and totalMinutes - that should start to tell you what is happening, and that should give you why.

But without your code running and feeding values to your property / method everything is just guesswork. The debugger can tell you whattah values are, and that's what you need.