例如像(ref this)这样的东西不起作用......例如,这失败了:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace CopyOfThis
{
class Program
{
static void Main(string[] args)
{
View objView = new View();
objView.Boo();
objView.ShowMsg("The objView.StrVal is " + objView.StrVal);
Console.Read();
}
} //eof Program
class View
{
private string strVal;
public string StrVal
{
get { return strVal; }
set { strVal = value; }
}
public void Boo()
{
Controller objController = new Controller(ref this);
}
public void ShowMsg ( string msg )
{
Console.WriteLine(msg);
}
} //eof class
class Controller
{
View View { get; set; }
public Controller(View objView)
{
this.View = objView;
this.LoadData();
}
public void LoadData()
{
this.View.StrVal = "newData";
this.View.ShowMsg("the loaded data is" + this.View.StrVal);
}
} //eof class
class Model
{
} //eof class
} //eof namespace
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Pet*_*old 14
this已经是一个参考.代码就像
DoSomethingWith(this);
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将引用传递给当前对象的方法DoSomethingWith.
编辑:鉴于您编辑的代码示例,您不需要通过ref this,因为正如接受的答案所述 - 这已经是一个参考。
你不能通过this引用传递引用,因为它是常量;通过 ref 传递它将允许它被更改 - 就 C# 而言,这是无意义的。
你能得到的最接近的结果是:
var this2 = this;
foo(ref this2);
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