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How do I get the index of an item in an IList based of that Item...?

I am trying to remove a specific Item from an IList the is found via Linq.

How do I get the index from an item itself?

See my code below

IList<MyType> myList = new List<MyType>();
MyType myTItem = myList.OrderByDescending(x => x.YearOfService).Where(y = y.YearOfService < 2001).Last();
long indx = ??? //index of myTItem
myList.RemoveAt(indx);

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Carlos Villegas

Try:

IList<MyType> myList = new List<MyType>();
MyType myTItem = myList.OrderByDescending(x => x.YearOfService).Where(y = y.YearOfService < 2001).Last();
long indx = myList.IndexOf(myTItem); //index of myTItem
myList.RemoveAt(indx);

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Also:

IList<MyType> myList = new List<MyType>();
MyType myTItem = myList.OrderByDescending(x => x.YearOfService).Where(y = y.YearOfService < 2001).Last();
myList.Remove(myTItem);

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Carlos Villegas

The index must be a int (first example, line #3)

Bruce

ASKER

"Try:"
I don't have IndexOf on my IList.

"Also:"
myList.Remove(myTItem) errors out.
Argument type 'MyType' is not assignable to parameter type 'System.Predicate<MyType>'

Carlos Villegas

mmm we are missing something... I list has that method:
http://msdn.microsoft.com/en-us/library/3w0148af(v=VS.80).aspx

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Carlos Villegas

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SOLUTION

theHollow

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Bruce

ASKER

Sorry, I didn't represent my example well...

I was using a class and interface that were created by another developer. The class inherited from the interface and the interface from IEnumerable. I was under the impression that it was IList and built my example accordingly.

I've got it working now.

I'm gladly giving the points. Thanks for the help.