"james" <nospam@hypercon.net> wrote in message
news:%23TDAUmBOGHA.456@TK2MSFTNGP15.phx.gbl...
> AssumeSomeFunctionExists ( Type someType, Type someOtherType)
> {
>
> // I want to know
> // 1. Are the two the same Type
> // 2. Are they members of the same Inheritance branch
> // a) Is someType a subclassof someOtherType or
> // b) Is someOtherType a subclass of someType
> // This code does work but...
>
> if ( someType.Equals(someOtherType) ||
> someType.IsSubclassOf(someOtherType) || someOtherType.IsSubclassOf (
> someType) )
>
> // ... doSomething
>
> }
>
> Now I know about the "is" operator but that only works with an object
> instance like
>
> if ( anObject is SomeClass )
>
> which does exactly what I want but I cannot use the "is" operator to
compare
> two Type objects
>
> And I know about IsSubclass() but that does not return 'true' when the two
> are exactly the same. So I
> do what I show in the above code which takes three comparisons. Am I
> missing a shortcut way to do this?
>
> Thanks a lot in advance
>
> JIM
>
>
>

james <nospam@hypercon.net> wrote:

> And I know about IsSubclass() but that does not return 'true' when the two
> are exactly the same. So I
> do what I show in the above code which takes three comparisons. Am I
> missing a shortcut way to do this?

"Bob" <bob@nowhere.com> wrote in message
news:eXxDTeCOGHA.456@TK2MSFTNGP15.phx.gbl...
> Hi James,
> I usually just work with the name property.
> if (GetType(someType).Name="MyBase")
>
>
>
> Don't know how efficient it is.
>
> FWIW
>
> Bob
>
>
>
> "james" <nospam@hypercon.net> wrote in message
> news:%23TDAUmBOGHA.456@TK2MSFTNGP15.phx.gbl...
>> AssumeSomeFunctionExists ( Type someType, Type someOtherType)
>> {
>>
>> // I want to know
>> // 1. Are the two the same Type
>> // 2. Are they members of the same Inheritance branch
>> // a) Is someType a subclassof someOtherType or
>> // b) Is someOtherType a subclass of someType
>> // This code does work but...
>>
>> if ( someType.Equals(someOtherType) ||
>> someType.IsSubclassOf(someOtherType) || someOtherType.IsSubclassOf (
>> someType) )
>>
>> // ... doSomething
>>
>> }
>>
>> Now I know about the "is" operator but that only works with an object
>> instance like
>>
>> if ( anObject is SomeClass )
>>
>> which does exactly what I want but I cannot use the "is" operator to
> compare
>> two Type objects
>>
>> And I know about IsSubclass() but that does not return 'true' when the
>> two
>> are exactly the same. So I
>> do what I show in the above code which takes three comparisons. Am I
>> missing a shortcut way to do this?
>>
>> Thanks a lot in advance
>>
>> JIM
>>
>>
>>
>
>

"Jon Skeet [C# MVP]" <skeet@pobox.com> wrote in message
news:MPG.1e67758943b5f56d98ce8e@msnews.microsoft.com...
> james <nospam@hypercon.net> wrote:
>
> <snip>
>
>> And I know about IsSubclass() but that does not return 'true' when the
>> two
>> are exactly the same. So I
>> do what I show in the above code which takes three comparisons. Am I
>> missing a shortcut way to do this?
>
> Have a look at Type.IsAssignableFrom. You'd just have to try it two
> ways.
>
> --
> Jon Skeet - <skeet@pobox.com>
> http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
> If replying to the group, please do not mail me too