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Custom System.Collections.Generic.Contains to test custom object

How can I rewrite or is there a way to write my own custom function that mimics custom System.Collections.Generic.Contains but only factors in some common properties of the custom object?

For example, if I have a custom object with a property name and ID, I would like my list of unique values ​​to contain all DISTINCT names. The identifier is irrelevant in this case.

List allvalues = new List ({0, "Burger"}, {1, "Pizza"}, {2, "burger"})

I would like it to return me a List containing the first object 0, Burger and 1, Pizza ... Regardless of the id and case of the name.

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Yes, use refund refund as in:



   private Collection<T> internalCollection;

    public Collection<T> GetDistinctList<T>()
    {
        List<string> names = new List<string>();
        foreach(T thisT in internalCollection)
           if (!names.Contains(thisT.Name)
           {
               names.Add(thisT.Name);
               yield return thisT;
           }
    }
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I don't quite understand how Contains(...)

related to the material List ({0, "Burger"}, {1, "Pizza"}, {2, "burger"})

. Can you clarify? In general, you can see how to create a custom Equals()

/ GetHashCode()

or IEquatable<T>

or IEqualityComparer<T>

. Also, LINQ has many ways to make it simple - do you have access to LINQ?



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