如何獲得屬性獲取或設置屬性屬性

Question

是否有可能獲得屬性獲取或設置屬性屬性沒有StackFrame？

例如

[SomeAttribute] 
public int SomeProp 
{ 
    get 
    { 
     //Get of SomeAttribute is set on this property 
    } 
    set 
    { 
     //Get of SomeAttribute is set on this property 
    } 
} 

Answer 1

你可以寫這樣的功能，而不是由字符串lliterals由表達式獲得屬性名稱

public string Item(this T obj, Expression<Func<T, object>> expression) 
{ 
    if (expression.Body is MemberExpression) 
    { 
     return ((MemberExpression)expression.Body).Member.Name; 
    } 
    if (expression.Body is UnaryExpression) 
    { 
     return ((MemberExpression)((UnaryExpression)expression.Body).Operand).Member.Name; 
    } 
    throw new InvalidOperationException(); 
} 

用法：

public int SomeProp 
{ 
    get 
    { 
    var attribs = 
      this.GetType().GetProperty(this.Item(o => o.SomeProp)).Attributes; 
    } 
}