Do not assign property multiple times inside method

[RalfKoban]

It may happen that programmers write code as following:

public string SomeProperty { get; set; }

public void DoSomething(int value)
{
    if (value == 1)
    {
        SomeProperty = "something";
        return;
    }

    if (value == 2)
    {
        SomeProperty = "something else";
        return;
    }

    if (value == 3)
    {
        SomeProperty = "something different";
        return;
    }

    SomeProperty = string.Empty;
}

They evaluate a value and - dependent on the result - assign a value to some property.

It would be much better if they would separate the evaluation and the assignment into different methods, as in following code:

public string SomeProperty { get; set; }

public void DoSomething(int value)
{
    SomeProperty = Evaluate(value);
}

private string Evaluate(int value)
{
    if (value == 1)
    {
        return "something";
    }

    if (value == 2)
    {
        return "something else";
    }

    if (value == 3)
    {
        return "something different";
    }

   return string.Empty;
}

That would lead to less side effects.