Mega Code Archive
Indexing with an Integer Index
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/*
A Programmer's Introduction to C# (Second Edition)
by Eric Gunnerson
Publisher: Apress L.P.
ISBN: 1-893115-62-3
*/
// 19 - Indexers and Enumerators\Indexing with an Integer Index
// copyright 2000 Eric Gunnerson
using System;
using System.Collections;
class DataValue
{
public DataValue(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 DataRow
{
public DataRow()
{
row = new ArrayList();
}
public void Load()
{
/* load code here */
row.Add(new DataValue("Id", 5551212));
row.Add(new DataValue("Name", "Fred"));
row.Add(new DataValue("Salary", 2355.23m));
}
// the indexer
public DataValue this[int column]
{
get
{
return((DataValue) row[column - 1]);
}
set
{
row[column - 1] = value;
}
}
ArrayList row;
}
public class IndexingwithanIntegerIndex
{
public static void Main()
{
DataRow row = new DataRow();
row.Load();
Console.WriteLine("Column 0: {0}", row[1].Data);
row[1].Data = 12; // set the ID
}
}
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