Mega Code Archive
Indexing with an Integer Indexer
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It is possible to overload the [ ] operator for classes that you create with an indexer.
An indexer allows an object to be indexed like an array.
using System;
using System.Collections;
class Pair
{
public Pair(string name, object data)
{
this.name = name;
this.data = data;
}
public string Name
{
get
{
return(name);
}
set
{
name = value;
}
}
public object Data
{
get
{
return(data);
}
set
{
data = value;
}
}
string name;
object data;
}
class PairList
{
public PairList()
{
row = new ArrayList();
}
public void Load()
{
/* load code here */
row.Add(new Pair("A", 5551212));
row.Add(new Pair("B", "Fred"));
row.Add(new Pair("C", 2355.23m));
}
// the indexer
public Pair this[int column]
{
get
{
return((Pair) row[column - 1]);
}
set
{
row[column - 1] = value;
}
}
ArrayList row;
}
class MainClass
{
public static void Main()
{
PairList row = new PairList();
row.Load();
Console.WriteLine("Column 0: {0}", row[1].Data);
row[1].Data = 12;
}
}
Column 0: 5551212
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