[英]In C#, how do you mix a default get with an explicit set?
I want to do something like this: 我想做这样的事情:
class Foo
{
bool Property
{
get;
set
{
notifySomethingOfTheChange();
// What should I put here to set the value?
}
}
}
Is there anything I can put there to set the value? 我可以在那里设置价值吗? Or will I have to explicitly define the
get
and add another field to the class? 或者我是否必须明确定义
get
并向该类添加另一个字段?
There is no way. 没有办法。
You can either have both setter and getter auto-implemented 您可以自动实现setter和getter
bool Property { get; set; }
Or implement both manually 或者手动实现
bool Property { get { return _prop; } set { _prop = value; } }
You either have a default property, with compiler-generated backing field and getter and/or setter body, or a custom property. 您可以使用默认属性,使用编译器生成的支持字段和getter和/或setter主体,或者使用自定义属性。
Once you define your own setter, there is no compiler-generated backing field. 一旦定义了自己的setter,就没有编译器生成的后备字段。 You have to make one yourself, and define the getter body also.
你必须自己制作一个,并定义吸气体。
No this is the case where auto-properties are not the best fit, and therefore the point at which you go to proper implemented properties: 不是这种情况,自动属性不是最合适的,因此您可以使用适当的实现属性:
class Foo
{
private bool property;
public bool Property
{
get
{
return this.property;
}
set
{
notifySomethingOfTheChange();
this.property = value
}
}
}
In many cases you can use the "Auto Property" feature eg public int Age { get; 在许多情况下,您可以使用“自动属性”功能,例如public int Age {get; set;
组; } = 43;
} = 43;
This is a good reference http://www.informit.com/articles/article.aspx?p=2416187 这是一个很好的参考http://www.informit.com/articles/article.aspx?p=2416187
Naji K. Naji K.
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