interval is negative where it should be positive

[hairyyak]

You can download a free version of Visual Studio 2019 from this Visual Studio Older Downloads - 2019, 2017, 2015 & Previous Versions You need an account with Microsoft in order to download this software.

I installed all the different features of this software which is an overboard approach but works. The problem I'm having with this computer program which I wrote is that the interval is negative where it should be positive and constantly update.

Thanks for any help.

 

[Skydiver]

Please post the relevant code as text in code tags. Not as a screenshot. Not as .ZIP file that includes everything including the kitchen sink like you did above.

Also tell us what you have tried to attempt to identify and fix the problem.

 

[Skydiver]

Anyway to answer your question, you never initialize endTime to a value so it is effectively DateTime.Zero. Zero minus some positive number will always be negative.