private int _id;
private int? _categroyid;
/// <summary>
/// 自动编号
/// </summary>
public int ID
{
set { _id = value; }
get { return _id; }
} public int? CategroyID
{
set { _categroyid = value; }
get { return _categroyid; }
} public class GaaInfo
{
public int ID { set; get; }
public int? CategroyID { set; get; }
} 这句是在VS2008下面的实例,但是当我拿到VS2005想用这个类的时候,发现编译有问题:2005必须声明主体,因为它未标记为 abstract 或 extern F:\网站建设WEB\Web_Play\App_Code\Model\Game.cs 135 34 F:\网站建设WEB\Web_Play\
错误,必须声明主体,因为它未标记,请问有好什么办法能让他在VS2005调整通过吗?
C#2.0必须写主题public int ID
{
set
{
}
get
{
throw new Exception();
}
}这样就可以编译过了
如:class a
{
private int _id;
private int? _categroyid;
/// <summary>
/// 自动编号
/// </summary>
public int ID
{
set { _id = value; }
get { return _id; }
} public int? CategroyID
{
set { _categroyid = value; }
get { return _categroyid; }
} public class GaaInfo
{
public int ID { set; get; }
public int? CategroyID { set; get; }
} }
另外,int? 2005不知道可支持,你试下,它是让值类型可以被赋值为NULL
{
public int ID { set; get; }
public int? CategroyID { set; get; }
}
2005 要 这样 public class GaaInfo
{
private int _id
private int _categroyid;
public int ID {
get{return _id;}
set{_id=value;}
}
public int? CategroyID {
get{return _categroyid;}
set{_categroyid=value;} }
}
这样是可以赋值为null,省些开销
public class Class1
{
private int _id;
private int? _categroyid;
public int ID
{
set { _id = value; }
get { return _id; }
} public int? CategroyID
{
set { _categroyid = value; }
get { return _categroyid; }
}
public class GaaInfo
{
public int ID { set; get; }
public int? CategroyID { set; get; }
}
}int? Nullable 可空类型