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.Net click through forms

Or to save using a timer, store the system time at form load and if the new form's button is clicked less than 200ms or so after form load, ignore it. 3 lines of code I expect.

Can't remember off the top of my head what the resolution of DateTime is, in earlier .Net it was as large as 500ms. Stopwatch will use high def if it's available.
 
Can't remember off the top of my head what the resolution of DateTime is, in earlier .Net it was as large as 500ms. Stopwatch will use high def if it's available.

The precision has always been (according to the Docs) 100 Nanosecs. However there are some issues:-

https://connect.microsoft.com/Visua...nted-datetime-precision-problem?wa=wsignin1.0

Internally the stopwatch uses datetime.utcnow - which is precisely what datetime.now does.

I doubt there is any difference in efficiency between datetime.now.subtract and using a stopwatch.
 
I doubt there is any difference in efficiency between datetime.now.subtract and using a stopwatch.

Actually, there might be a slight overhead in loading the stopwatch wrapper object (needs to load the Diagnostics assembly?) so DateTimeNow.Subtract(someStoredVal) would probably be marginally quicker.

I liked the modal dialogue suggestion.

And all because the lady loves Milk Tray.
 
Or to save using a timer, store the system time at form load and if the new form's button is clicked less than 200ms or so after form load, ignore it. 3 lines of code I expect.

btw stopwatch is not a timer. It is just a wrapper round datetime. It's lightweight. However it does some more calculations than would be done with using datetime.subtract.now.subtract.
 
Actually, there might be a slight overhead in loading the stopwatch wrapper object (needs to load the Diagnostics assembly?) so DateTimeNow.Subtract(someStoredVal) would probably be marginally quicker.

I liked the modal dialogue suggestion.

And all because the lady loves Milk Tray.

Out of interest (and boredom) I had a look at it in reflector. It does have a call to a kernel function on first instantiation to discover if it's high res or not. I it calls the same functions as datetime.now does in general. I think one would need a few hundred billion iterations to find a timeable difference though..
 

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