Using Graphics.DrawLine with List<Point>

  • Thread starter Thread starter Hvid Hat
  • Start date Start date
H

Hvid Hat

Hi

Is it somehow possible to call Graphics.DrawLine with List<Point>? Does it
only take Point arrays? If so, how can I (easily) convert my List<Point>
to a Point array[]
 
Is it somehow possible to call Graphics.DrawLine with List<Point>? Does
it only take Point arrays? If so, how can I (easily) convert my
List<Point> to a Point array[]?
Click to expand...

Have you tried calling the List<>.ToArray() method?
 
Hello Peter,
Is it somehow possible to call Graphics.DrawLine with List<Point>?
Does it only take Point arrays? If so, how can I (easily) convert my
List<Point> to a Point array[]?
Click to expand...
Have you tried calling the List<>.ToArray() method?
Click to expand...

Hah! I'm new to generic lists so didn't expect it to be so easy. Thanks
 
Is it somehow possible to call Graphics.DrawLine with List<Point>?
Does it only take Point arrays? If so, how can I (easily) convert my
List<Point> to a Point array[]?
Click to expand...
Have you tried calling the List<>.ToArray() method?
Click to expand...

Hah! I'm new to generic lists so didn't expect it to be so easy. Thanks!
Click to expand...

You're welcome.

That said, if you are surprised that they haven't added a DrawLines()
overload that takes an IList<Point>, or IEnumerable<Point> or something
like that, I wouldn't blame you. :) Seems like a silly oversight to me.
You _should_ be able to just pass a List<> instance to some version of
DrawLines(), rather than having to convert to an array.

Pete
 
Hi,

Peter Duniho said:
Is it somehow possible to call Graphics.DrawLine with List<Point>?
Does it only take Point arrays? If so, how can I (easily) convert my
List<Point> to a Point array[]?

Have you tried calling the List<>.ToArray() method?
Click to expand...

Hah! I'm new to generic lists so didn't expect it to be so easy. Thanks!
Click to expand...

You're welcome.

That said, if you are surprised that they haven't added a DrawLines()
overload that takes an IList<Point>, or IEnumerable<Point> or something
like that, I wouldn't blame you. :) Seems like a silly oversight to me.
You _should_ be able to just pass a List<> instance to some version of
DrawLines(), rather than having to convert to an array.
Click to expand...

I do not think this will every happen :(.
Cause how many methods there are in the framework that expect an Array , all
of those methods would be candidates to get a overload with List<T> , as
long as you can convert a List<> to Array it's good enough.
 
I do not think this will every happen :(.
Cause how many methods there are in the framework that expect an Array ,
all of those methods would be candidates to get a overload with List<T>
, as long as you can convert a List<> to Array it's good enough.
Click to expand...

Well, except for the fact that it could in fact be a performance burden.

You may be right that it's too sweeping a change for Microsoft to feel
it's worth doing. But they _do_ have a variety of other things that they
do that require sweeping changes. If anything, that's one of the things a
company with their resources can be very good at. :)

Pete
 
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