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Why Am I Getting a 'An Object Reference Is Required for the Non-Static Field, Method, or Property' Error in C#?

Jan 22, 2025 am 05:26 AM

Why Am I Getting a

C# Error: "An object reference is required to access a non-static field, method, or property"

Explanation:

This error occurs when trying to access a non-static variable, method, or property from a static context. In this example, the "Main" method declared static attempts to call the non-static method "GetRandomBits()".

Specific questions:

In the provided code, the "GetRandomBits()" method is defined as a non-static method in the "Program" class. However, the "Main" method is declared static in the same class. This mismatch caused the error.

Solution:

There are two possible solutions to this problem:

  1. Create an instance of the Program class:

    In the "Main" method, create an instance of the "Program" class and then call the "GetRandomBits()" method on that instance.

    Program p = new Program();
    string bits = p.GetRandomBits();
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  2. Set "GetRandomBits()" to static:

    Alternatively, you can modify the declaration of the "GetRandomBits()" method to make it a static method. This way it can be called directly from the static "Main" method.

    public static string GetRandomBits()
    {
        // ... 方法实现
    }
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