casting an object to a type

[Steve Teeples]

Can someone explain how to cast an object to a specific type during runtime?

// This line of code tells me the objects type.
System.Type type = System.Type.Get Type("string of the type");

// This line of code compares the objects, but the compiler doesn't like my
casting.
return ((type)object1 <= (type)object2) ? true : false;

The compiler doesn't like my casting of (type)object1 or (type)object2.

Steve

[Jon Skeet [C# MVP]]

Steve Teeples <St**********@d iscussions.micr osoft.com> wrote:

Can someone explain how to cast an object to a specific type during
runtime?
Casts are there for the compiler, really - they don't make sense to
perform at runtime.
// This line of code tells me the objects type.
System.Type type = System.Type.Get Type("string of the type");

// This line of code compares the objects, but the compiler doesn't like my
casting.
return ((type)object1 <= (type)object2) ? true : false;

The compiler doesn't like my casting of (type)object1 or (type)object2.

No, it wouldn't. If your objects definitely implement IComparable, you
should cast both sides to that and call Compare - that should give the
same effect.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Steve Teeples]

All my objects will be base numeric types (e.g., Int32, UInt64, etc.) . How
do I use IComparable? I've never used it before?

"Jon Skeet [C# MVP]" wrote:

Steve Teeples <St**********@d iscussions.micr osoft.com> wrote:

Can someone explain how to cast an object to a specific type during
runtime?

Casts are there for the compiler, really - they don't make sense to
perform at runtime.

// This line of code tells me the objects type.
System.Type type = System.Type.Get Type("string of the type");

// This line of code compares the objects, but the compiler doesn't like my
casting.
return ((type)object1 <= (type)object2) ? true : false;

The compiler doesn't like my casting of (type)object1 or (type)object2.

No, it wouldn't. If your objects definitely implement IComparable, you
should cast both sides to that and call Compare - that should give the
same effect.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Steve Teeples]

I've played with it and figured it out. Thanks Jon for your help at such a
late hour.

"Jon Skeet [C# MVP]" wrote:

Steve Teeples <St**********@d iscussions.micr osoft.com> wrote:

Can someone explain how to cast an object to a specific type during
runtime?

Casts are there for the compiler, really - they don't make sense to
perform at runtime.

// This line of code tells me the objects type.
System.Type type = System.Type.Get Type("string of the type");

// This line of code compares the objects, but the compiler doesn't like my
casting.
return ((type)object1 <= (type)object2) ? true : false;

The compiler doesn't like my casting of (type)object1 or (type)object2.

No, it wouldn't. If your objects definitely implement IComparable, you
should cast both sides to that and call Compare - that should give the
same effect.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too