2.6.txt

《Microsoft Visual C# .NET 2003开发技巧大全》源代码

Listing 2.6 Defining Properties to Provide Validating Member Variable Access Using
Data-Hiding Techniques
using System;
namespace _6_Properties
{
public class Television
{
private int channel = 1;
// this tv only has 255 channels
private const int maxChannels = 255;
// changes the channel on the tv
public int Channel
{
get
{
return channel;
}
set
{
// check value’s range
if( value > maxChannels )
return;
// set private variable
channel = value;
}
}
}
}