Hi,

I have a hard time recalling what was the basic rationales for using structs
instead of classes in a C# program. Could anyone point out the reasons?

Juan,

That theory "was".

However I think that the discussion is done; in my idea were the
conclussions that the benefits are far below the benefits of using objects.

(Or it should be for API calls etc, but those are as well not clever
thinking about newer OS systems)

Cor

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Juan Dent wrote:
I first learned C in 1988 before there was such a thing as classes (at
least I had never heard of them at that time), and structs were all
there was available for grouping data together. I think that now, there
is little reason to use structs instead of classes and structs are
merely available for backwards compatability of some kind.

Juan Dent wrote:
    If local variable, struct is not a subject to garbage collection.
This could be beneficial if you have many of them, e.g., like
points and sizes during frequent calculations in paint events.

Hi Juan,

A struct type is a value type that can contain constructors, constants,
fields, methods, properties, indexers, operators, events, and nested types.
While class is a reference type, whose instances are created on managed
heap.

The struct type is suitable for representing lightweight objects such as
Point, Rectangle, and Color. Although it is possible to represent a point
as a class, a struct is more efficient in some scenarios. For example, if
you declare an array of 1000 Point objects, you will allocate additional
memory for referencing each object. In this case, the struct is less
expensive.

You will find more information from the following link:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/csref/html/
vcrefstructtypes.asp

Kevin Yu
Microsoft Online Community Support

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