Question

我想将PostSharp aspect属性放在一个Property上，并知道访问哪个方法属性以及它当时具有什么值。这可能与PostSharp有关吗？

实施例

static MyClass
{
[PostSharpAtrribute]
public string OutputFormat { get; set; }
}

public void Method1
{
MyClass.Instance.OutputFormat = "1";
}

public void Method2
{
MyClass.Instance.OutputFormat = "2";
}

public void Method3
{
MyClass.Instance.OutputFormat = "3";
}

PostSharp Aspect应该阅读

Method "Method1" executed, property has value OutputFormat = 1
Method "Method2" executed, property has value OutputFormat = 2
Method "Method3" executed, property has value OutputFormat = 3

Answer 1

要获取当前值（在更改之前，您只需使用Args.Value，因为Set尚未发生。

[Serializable] 
public class MyPropertyAspect: LocationInterceptionAspect 
{ 
    public override void OnSetValue(LocationInterceptionArgs args) 
    { 
            object current = args.Value; //Set has not happened, remember this is an interception
            args.ProceedSetValue(); 

    }           
}

请参阅http://www.sharpcrafters.com/blog/post/Day-7-Interception-Aspects-e28093-Part-1.aspx和http://www.sharpcrafters.com/blog/post/Day-8-Interception-Aspects-e28093-Part-2.aspx

要确定调用者，您需要使用StackTrace遍历callstack http://msdn.microsoft.com/en-us/library/system.diagnostics.stacktrace.aspx

var st = new StackTrace();
st.GetFrame(1).GetMethod().Name; //Might also be frame 2

或者只是在你的方法上加上一个跟踪方面（IMO比反映调用堆栈更好）http://www.sharpcrafters.com/blog/post/Day-4-OnMethodBoundaryAspect.aspx

获取访问Property的方法名称并读取属性值

1 个答案: