Web Forms :: Remove Duplicates From List Method?

Nov 16, 2010

I have a Method that returns 4 records like this.

Name: Test1
Year: 2010
Value: $1000

Name: Test2
Year: 2010
Value: $1000

Name: Test3
Year: 2011
Value: $2000

Name: Test4
Year: 2011
Value: $1000

I need a way to get the unique years just ( 2010, 2011) rather than all 4 years, rest of the data could be duplicates.

Here is the method:

public List<TestCosts> GetTestvalues(string testid)
{
List<TestCosts> testlist = Testscores.List(testid);
return testlist;
}

Most of the examples of removing duplicates I saw have a list of one item only but in my case I have 3 items per record and I need to loop through each record, find the duplicate years, remove them and then return the distinct list of years along with the other data.

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