Collection<T>.IndexOf Method

[DimkaNewtown]

I have a generic collection of custom objects. I tried implementing IComparable interface with the CompareTo method, but it doesn't actually fire when I do an IndexOf on the collection.

 

Note: I also tried IComparable<T> and had the same lack of results for the CompareTo method.

 

Anyone know what I'm doing wrong?

[PlausiblyDamp]

Could you post the code, or if not could you post a sample that exhibts this behaviour?

 

Edit: also IIRC IndexOf will call the overriden Equals method rather than the IComparable interface, try overriding equals and simply get it to call your IComparable implementation.

Edited November 7, 2005 by PlausiblyDamp

[DimkaNewtown]

Could you post the code, or if not could you post a sample that exhibts this behaviour?

 

Edit: also IIRC IndexOf will call the overriden Equals method rather than the IComparable interface, try overriding equals and simply get it to call your IComparable<T> implementation.

 

You were correct. I implemented the IEquatable<T> and it worked fine.

 

It's strange though because AFAIK the msdn help says you have to override the CompareTo method of IComparable interface.

 

Thanks!

[bri189a]

Hope you left a comment on the MSDN page of the error, but thanks for discovering the error, I'll definitely stick that one in my head for when I one in to the same thing! :)