CODEWITHSUNDEEP
vb.netmodule
Chiramisu
Chiramisu

Reputation: 4726

How to Get the Module.Function Caller

I've written a series of ASP.NET pages which have several common methods among them. In my ignorance, the best way I was able to find to move those common methods to a separate file was in a Module. However, what I need is a way to identify from which page was the method called?

For example, I have a method call WriteToErrorLog with the following signature:

WriteToErrorLog(ByVal sender As Page, ByVal Source As String, ByVal Message As String, ByVal StackTrace As String)

Since this is in a Module, the sender Page is unknown. I would like to know if there is a way to access it? I expect that there would be since if an error occurred, the stacktrace ought to reveal the play-by-play of what brought you to the error. Do I really need to pass in the Page or can I retrieve this and the calling function some other way?

Thanks in advance :)

Upvotes: 0

Views: 1247

Answers (1)

Tim Schmelter
Tim Schmelter

Reputation: 460340

You can get the reference to the current HttpHandler(the page) even in a static/shared context like in a Module.

Following is fail-safe even outside of a HttpContext(e.g. class-library referenced from a Winforms project):

If HttpContext.Current IsNot Nothing Then
    Dim page = TryCast(HttpContext.Current.Handler, Page)
    If page IsNot Nothing Then
        ' Do something with it '
    End If
End If

HttpContext.CurrentHandler

Edit: You get the name of the calling method in the following way:

Dim method = New StackTrace().GetFrame(1).GetMethod().Name

http://www.csharp-examples.net/reflection-calling-method-name/

Upvotes: 1

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