How to use SortedList.Item Property

User 956892

Hi, Can somebody please tell me how to use the "Item" property in System.Collections.SortedList class. I wanted to get and set the value field depending on the key. Thanks Raj

Spanky3

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemcollectionssortedlistclasstopic.asp[^] Hope that helps, seems pretty straight forward :-D

Heath Stewart

If you look at the documentation for the Items property, it says that it's the indexer in C# (the same as other lists' Items properties). This means you use it like this:

myList[key] = value;
value = myList[key];

You can use a key because a SortedList implement IDictionary, an interface for key/value collections. Mosts lists in the .NET FCL simply take an index (0-based, as with all .NET languages) in their indexer.

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User 956892

Thanks for your reply. I am new to .Net. Trying to understand these properties. DO I have to override this property. I am doing like this, but it doesn't work. In my Sorted list keys are of type string and value is of type int. public override int Item(string myKey) { get { return mySrotedList[myKey]; } set { mySortedList[myKey] = value; } } Thanks for your help and time. Raj

Heath Stewart

Why are you trying to override this? If you're just using a SortedList, you just use it like the code example I gave. If you do want to extend a class, you only have to override abstract methods, and override other methods and properties as you need to. In this case, though, it's seems like you don't need to. Besides, when you declare an indexer for a class in C#, you use the following syntax:

public object this[int index]
{
get { return internalList[index]; }
set { internalList[index] = value; }
}

Read the .NET Framework SDK for more information, especially since your new. Specifically, see the Visual C# Language[^] topic.

Microsoft MVP, Visual C# My Articles