why there is no Center() method for Rectangle class in c#?

Question

previously, there is such method for Rectangle in MFC, i dont know why there is not for the c# version.

Solution 1

Presumably it wasn't deemed useful enough to merit inclusion.

You could easily add it as an extension method if you want though (and if you're using C# 3):

public static Point Center(this Rectangle rect)
{
    return new Point(rect.Left + rect.Width/2,
                     rect.Top + rect.Height / 2);
}

Note that as the values are expressed as integers, you could easily end up getting a non-exact value, assuming you want to return a Point rather than another structure using decimal or double.

The above is actually for the System.Drawing.Rectangle struct. If you're talking about a different Rectangle, please add the appropriate information and I'll edit my answer.

Solution 2

It exists within the (no longer supported) Microsoft.XNA.Framework.

Rectangle.Center Property

myRectangle.Center returns a Point

Comments

[I. J. Kennedy]

I find this to be a strange omission as well.

[CallMeLaNN]

How to add this extension to System.Drawing.Rectangle?

[Jon Skeet]

@CallMeLaNN: Just declare it in a static, non-generic, top-level class. For more details, read up about extension methods in general, e.g. in MSDN.

[Stobor]

connect.microsoft.com/VisualStudio/feedback/details/93879/… is where it has been suggested formally.

[Benny]

in which version? .net 5?

[Evorlor]

4.5.51641 has it. Not sure when it was added.

[Jon Skeet]

@Evorlor: There still isn't in System.Drawing.Rectangle as far as I can see. Were you thinking of a different Rectangle type, or did I miss something?

[Jon Skeet]

Which exact type are you referring to? A link would be useful.

[Evorlor]

@Jon Skeet Eep! I was using Microsoft.Xna.Framework (which I think is no longer supported). My mistake! msdn.microsoft.com/en-us/library/…