//Checks if an object is null if (CheckNull.IsNull(obj)) { //Do something when obj is null }
string name = null; if (CheckNull.IsNullOrEmpty(name)) { Console.WriteLine("Name is not initialized"); }This code snippet shows how to check if a string variable is null or empty using the CheckNull class. If the variable is null or empty, it will display a message to the console. In conclusion, the System CheckNull class is a part of the .NET framework that provides various methods to check if an object is null or empty in C# language. Its package library is System.Core.dll.