How can i know who call thw constructor

Question

2.00/5 (1 vote)

See more:

Hey, i want to know the class name that call the constructor,
i try with stack trace but didn't work. here is example:

C#

public class ClassA
{
  public ClassB B {get; privet set;}
  
  public ClassA()
  {
    B = new CLassB();
  }
}

public class ClassB
{
  public ClassB()
  {
     //Here i want to print the class name that call to this consructor (ClassA)
  }
}

10x!!

Posted 24-Mar-12 22:00pm

Member 7956197

Add a Solution

Comments

Sergey Alexandrovich Kryukov 25-Mar-12 4:21am

This is pretty simple. I would be curious to know: why?
--SA

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sergey Alexandrovich Kryukov · Answer 1 · 2012-03-24T22:21:00

The question has little to do with Reflection. This problem is solved using the classes System.Diagnostics.StackTrace and System.Diagnostics.StackFrame.

Please see:
http://msdn.microsoft.com/en-us/library/system.diagnostics.stacktrace.aspx[^],
http://msdn.microsoft.com/en-us/library/system.diagnostics.stackframe.getmethod.aspx[^].

Let's assume you found appropriate stack frame. Use StackFrame.GetMethod to get an instance of the calling method of the type System.Reflection.MethodBase. Please see:
http://msdn.microsoft.com/en-us/library/system.reflection.methodbase.aspx[^].

(And yes, this part is Reflection… :-))

You will find the type of the caller using the property System.Reflection.MethodBase.DeclaringType. Please see:
http://msdn.microsoft.com/en-us/library/system.reflection.memberinfo.declaringtype.aspx[^].

Everything is pretty simple; it's hard to say where could you have lost. Just read MSDN help pages.

—SA

OriginalGriff · Answer 2 · 2012-03-24T22:20:00

Solution 1

You do need to use the StackFrame, but you need to access the DeclaringType of the MethodBase class:

C#

StackTrace st = new StackTrace(true);
foreach ( StackFrame sf in st.GetFrames())
    {
    Console.WriteLine(sf.GetMethod().DeclaringType);
    }

Posted 24-Mar-12 22:20pm

OriginalGriff