CODEWITHSUNDEEP
c#.netdatetime
frenchie
frenchie

Reputation: 51927

timespan between now and past datetime

I want to calculate how much time elapsed between a datetime and now in minutes. This is what I have:

TimeSpan SinceStatusChange = new TimeSpan();
SinceStatusChange = (double)(DateTime.Now.Date - StatusDateTime).TotalMinutes;

Basically, I'm looking to write this conditional statement:

if (SinceStatusChange is greater than 180 minutes)

How do I write the line "SinceStatusChange = " so I can later test if the value is greater than 180?

Thanks.

Upvotes: 1

Views: 1112

Answers (5)

Ed Swangren
Ed Swangren

Reputation: 124642

Well you are trying to assign a double to a TimeSpan which, for obvious reasons, will not work. You already have what you want really, just use:

// the 'Minutes' property of a TimeSpan object is a double, 
// so the result is a double, not a new TimeSpan object.
double elapsed = (DateTime.Now - StatusDateTime).TotalMinutes;
if( elapsed > 180 )
{
    // do stuff
}

Upvotes: 4

Drew Noakes
Drew Noakes

Reputation: 310852

You can do this quite simply:

if (DateTime.Now - StatusDateTime > TimeSpan.FromMinutes(180))
{
    // ...
}

Upvotes: 2

Brent Anderson
Brent Anderson

Reputation: 966

This will give you the double you're looking for:

    if (DateTime.Now.Subtract(statusDateTime).TotalMinutes > 180)
    {
        //do work.
    }

Upvotes: 1

Oded
Oded

Reputation: 498972

You can do this in a more type safe manner, just using TimeSpans:

TimeSpan _180mins = new TimeSpan(3,0,0);
var timeDiff = DateTime.Now.Date - StatusDateTime;

if(timeDiff < _180mins)
{
}

Upvotes: 1

dwonisch
dwonisch

Reputation: 5785

The call of TotalMinutes on a TimeSpan returns a double. Change the signature of SinceStatusChange to double and you can use it like

double SinceStatusChange;
SinceStatusChange = (DateTime.Now.Date - StatusDateTime).TotalMinutes;

if (SinceStatusChange > 180)

Upvotes: 1

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