How to avoid stack overflow errors when defining set accessor in C#

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眼角桃花
眼角桃花 2021-01-18 19:45

People of stackoverflow. I am new to c# and this is the first time I have not been able to find an answer to one of my elementary questions. Who can help me?!I am trying to

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  •  渐次进展
    2021-01-18 20:27

    You're calling the getter and setter recursively (calling themselves infinitely), inevitably causing a stack overflow.

    Surely this is what you mean to be doing:

    private string headline;
    public string Headline
    {
        get { return headline; }
        set { headline = value; }
    }
    

    Note that this is unnecessary if you don't plan to introduce any further get/set logic, as this is exactly what your first example does behind the scenes.

    When learning about properties in c#, it helps to think of them not as data, but as a pair of methods with the following signatures:

    public string get_Headline() { ... }
    public void set_Headline(string value) { ... }
    

    In fact, this is exactly how the compiler defines them.

    Now it's easy to see that your initial code would call set_Headline recursively.

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