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c#indexer
Wafa Al-mardiney
Wafa Al-mardiney

Reputation: 13

Indexer Property

When we use the indexer property, we don't give it any parameter that will make this indexer property refer to the array that we want. What if we have more than one array?

How do we specify or force this property to refer to a specific array if we have more than one array in the class?

Upvotes: 0

Views: 514

Answers (2)

toddmo
toddmo

Reputation: 22406

You have to use properties that take arguments, Which is not possible in C#, unfortunately 

public string this[int index] 
{ 
    get { return namelist[index]; } 
    set { namelist[index] = value; } 
}

The indexer points to the array variable you use inside the indexer.

Upvotes: 0

Wormbo
Wormbo

Reputation: 4992

Your understanding of an indexer may be slightly off. An indexer essentially doesn't have any relation to some underlying array. It merely provides a way to define a syntax similar to those used to access array elements.

In fact, the built-in Dictionary class uses it with non-integer arguments to provide access to dictionary values via their corresponding key objects.

Also, indexers can take more than one parameter. You could, for example, define an enumeration of values representing the various arrays your class contains and return or set the appropriate value of the corresponding array, then.

Upvotes: 1

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