 Related Questions Use a conditional attribute on the method, as shown below: class Debug{[conditional("TRACE")]public void Trace(string s){Console.WriteLine(s);}}class MyClass{public static void Main(){Debug.Trace("hello");}}In Latest Answer : Well, you cant add the namespace System.Diagnostics.ConditionalAttribute. Actually you need to add the namespace System.Diagnostics and capitalise "Conditional" like so:using System;using System.Diagnostics;namespace Debug{ class ... You need to use the /target:library compiler option. Latest Answer : There is no Issue to make dll in C#...Go to Project and Select "Class Library" and work as you work in Usual FORM by making Classes or functions ....The only difference is that when we are making any File in DLL ,The file cannot be run in Class ... If you leave off the return type on a method declaration, the compiler thinks you are trying to declare a constructor. So if you are trying to declare a method that returns nothing, use void. The following Latest Answer : If your method does not have any return type then mention void before that method or return 0 ... Make sure that the target type set in the project properties setting is set to Windows Application, and not Console Application. If you're using the command line, compile with /target:winexe & Latest Answer : Compile with following syntax at command line : csc /t:winexe ... Here's a quick example of the DllImport attribute in action: using System.Runtime.InteropServices;class C{[DllImport("user32.dll")]public static extern int MessageBoxA(int h, string m, string Latest Answer : ans:by using1st:using System.Runtime.InteropServicessecond step[DllImport("user32.dll")]use top of the class ... This is currently not supported by Visual Studio .NET. Latest Answer : It is not possible ... Unfortunately, this is currently not supported in the IDE. To do this from the command line, you must compile your projects into netmodules (/target:module on the C# compiler), and then use the command Latest Answer : Ans:Unfortunately, this is currently not supported in the IDE. To do this from the command line, you must compile your projects into netmodules (/target:module on the C# compiler), and then use the command line tool al.exe (alink) to link these netmodules ... In a garbage collected environment, it's impossible to get true determinism. However, a design pattern that we recommend is implementing IDisposable on any class that contains a critical resource. Use the regasm.exe utility to generate a type library (if needed) and the necessary entries in the Windows Registry to make a class available to classic COM clients. Once a class is registered in the Windows Latest Answer : ans: using regasm.exe utility ... In the past, you had to call .ToString() on the strings when using the == or != operators to compare the strings' values. That will still work, but the C# compiler now automatically compares the values Latest Answer : You can use a.Equals(b) to compare and return a bool value where both a and b are strings. ...
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