不能使用非靜態方法的線程

Question

我想從線程中調用一個名爲UpdateResults()的非靜態方法。這是我的代碼：

class Live 
{ 
    Thread scheduler = new Thread(UpdateResults); 

    public Live() 
    { 
     scheduler.Start(); 
    } 

    public void UpdateResults() 
    { 
     //do some stuff 
    } 
} 

，但我得到這個錯誤：

A field initializer can not refer to the property, method or non-static field 'Live.UpdateResults()'

我怎樣才能解決這個問題？

Answer 1

這與Thread無關。有關詳細情況，請參閱this問題。 解決您的問題，改變你的類，如下所示：

class Live 
{ 
    Thread scheduler; 

    public Live() 
    { 
     scheduler = new Thread(UpdateResults); 
     scheduler.Start(); 
    } 

    public void UpdateResults() 
    { 
     //do some stuff 
    } 
} 

由於喬恩斯基特提到了上述問題，從C＃4規範的部分10.5.5.2：

A variable initializer for an instance field cannot reference the instance being created. Thus it is a compile-time error to reference this in a variable initializer, because it is a compile-time error for a variable initializer to reference any instance member through a simple-name.

當你寫new Thread(UpdateResults)你真的在寫new Thread(this.UpdateResults)。

Answer 2

C＃6.0解決方案：改變分配（=）來初始化=>

class Live { 
    // Please, note => instead of = 
    Thread scheduler => new Thread(UpdateResults); 

    public Live() { 
     scheduler.Start(); 
    } 

    public void UpdateResults() { 
     //do some stuff 
    } 
    }