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I have a method that has several overrides. In one of the more expanded overrides, I want to return an OUT parameter but not in my simpler overrides. For example:
public bool IsPossible(string param1, int param2) public bool IsPossible(string param1, int param2, out bool param3) The way I am currently achieving this, is like so:
public bool IsPossible(string param1, int param2) { bool temp; return IsPossible(param1, param2, out temp); } Is there a better way to achieve this? Can I (or should I) use a null-able out parameter?
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When a method with an omitted optional parameter is called, a stack frame containing the values of all the parameters is created, and the missing value(s) are simply filled with the specified default values. However, an "out" parameter is a reference, not a value.
The out is a keyword in C# which is used for the passing the arguments to methods as a reference type. It is generally used when a method returns multiple values.
The out parameter in C# is used to pass arguments to methods by reference. It differs from the ref keyword in that it does not require parameter variables to be initialized before they are passed to a method. The out keyword must be explicitly declared in the method's definition as well as in the calling method.
Calling a method with an out argument In C# 6 and earlier, you must declare a variable in a separate statement before you pass it as an out argument. The following example declares a variable named number before it is passed to the Int32.
That looks fine to me. A out cannot be optional for technical reasons (it needs to point to a valid instance).
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