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Considering that the debug data file is available (PDB) and by using either System.Reflection or another similar framework such as Mono.Cecil , how to retrieve programmatically the source file name and the line number where a type or a member of a type is declared. For example, let's say you have compiled this file into an assembly: C:\MyProject\Foo.cs 1: public class Foo 2: { 3: public string SayHello() 4: { 5: return "Hello"; 6: } 7: } How to do something like: MethodInfo methodInfo = typeof(Foo).GetMethod("SayHello"); string sourceFileName = methodInfo.GetSourceFile(); // ?? Does not exist! int sourceLineNumber = methodInfo.GetLineNumber(); // ?? Does not exist! sourceFileName would contain "C:\MyProject\Foo.cs" and sourceLineNumber be equal to 3. Update: System.Diagnostics.StackFrame is indeed able to get that information, but only in the scope of current executing call stack. It means that the method must be invoked first. I would like to get the same info, but without invoking the type member.

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