匿名方法不起作用[已关闭]

为什么不直接内联整个过程并去掉匿名方法呢?

ComboBoxEdit encoderCombo = slot == 1 ? cmbEncoder1 :
                            slot == 2 ? cmbEncoder2 :
                            slot == 3 ? cmbEncoder3 :
                            cmbEncoder4;

Func<ComboBoxEdit> encoderCombo = () => 
                            slot == 1 ? cmbEncoder1 :
                            slot == 2 ? cmbEncoder2 :
                            slot == 3 ? cmbEncoder3 :
                            cmbEncoder4;

它将捕获 slot 在闭包中(当事情变得更复杂时可能导致不可预测的行为)。

Func<ComboBoxEdit> encoderCombo = delegate {
    if (slot==1) return cmbEncoder1; 
    else if (slot==2) return cmbEncoder2; 
    else if (slot==3) return cmbEncoder3; 
    else return cmbEncoder4;
};

如果你换一个

ComboBoxEdit encoderCombo=

具有

Func<ComboBoxEdit> encoderCombo = () =>

好吧,你

ComboBoxEdit encoderCombo = new Func<ComboBoxEdit>(() =>
{
     if (slot==1) return cmbEncoder1; 
     else if (slot==2) return cmbEncoder2; 
     else if (slot==3) return cmbEncoder3; 
     else return cmbEncoder4;
}).Invoke();

不过,这有点可怕;)