indexing an object with a string?

[prolog2345]

Can someone help me with the following syntax in c#:

say i have a class MyClass

in many books in C# i have seen the following syntax: MyClass["Name"]

what does this mean?

i have read about indexers but they take an argument of type 'int' not 'String'. So what does this syntax retrieve from an abject.

 

[litton1]

can u not give any more?
i wonder if you mean <Backus Naur> [form] ie

http://www.otal.umd.edu/drweb/c++tutorial/lessons/BNF.HTM

just guessing!

Age is a consequence of experience

 

[chiph]

There's no reason why your indexer parameter can't be a string. This is valid code:

        public DateTime this[string index]
        {
            get
            {
                return null;  // or something meaningful
            }
            set
            {
                // Set the value here
            }
        }

If you create a new class, then go into the class viewer, then expand the project to get to your class in the tree, you can right-click and on the context menu is Add... Indexer. In the indexer creation wizard you can specify your datatypes.

Chip H.



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