what is indexer in c# with simple explain ?

Answer 1

An indexer is simply an indexed property. A common example would be an array - by calling array[3] you are accessing it via an indexer. The index can be anything, though - not just an integer. For example, if you want to create an object that looks up a specific item by name, you could write:

public class DoodadCollection
{
private Doodad[] myDoodads;

public Doodad this[string name]
{
get
{
Doodad myDoodad = null;
for(int i=0; i {
if(myDoodads[i].Name == name)
{
myDoodad = myDoodads[i];
break;
}
}
return myDoodad;
}
}
}

Answer 2

What Is Indexer

Answer 3

"Arrays are accessed by using the index.In the same way in C# also, Indexer is used to access the class instances by means of index notation."
check this site with the example:
http://www.codeproject.com/useritems/Indexer_in_C__Programmin.asp