Web Reference: It means your code used an object reference variable that was set to null (i.e. it did not reference an actual object instance). To prevent the error, objects that could be null should be tested for null before being used. What Does "Object Reference Not Set" Mean? Understanding the Concept in Simple Words In C#, everything revolves around objects. Before using an object, you must create it in memory using the new keyword. If you don’t create the object and still try to use it, the object remains null, and C# throws a NullReferenceException. Think of it like this: Learn what is NullReferenceException, common causes, how to fix null reference errors, debugging techniques, & best practices to prevent them in C# development.
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