Top "Ref" questions

What's the difference between the 'ref' and 'out' keywords?

I'm creating a function where I need to pass an object so that it can be modified by the function. …

c# reference keyword out ref

How to properly reference local resources in HTML?

As it turns out, referencing local resources can be a rub point for some. I'm looking for a canonical answer …

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Why use the 'ref' keyword when passing an object?

If I am passing an object to a method, why should I use the ref keyword? Isn't this the default …

c# .net pass-by-reference ref

Assigning out/ref parameters in Moq

Is it possible to assign an out/ref parameter using Moq (3.0+)? I've looked at using Callback(), but Action<> …

c# parameters moq ref out

PL/SQL print out ref cursor returned by a stored procedure

How can I fetch from a ref cursor that is returned from a stored procedure (OUT variable) and print the …

oracle plsql cursor ref

When to use ref and when it is not necessary in C#

I have a object that is my in memory state of the program and also have some other worker functions …

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powershell: how to write-host value from [ref] variable

I'm new to Powershell and I'm trying to work out how to print the value of a [ref] variable from …

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current is always null when using React.createRef

I was trying to do this. I must be missing something, but I don't understand why current is always null …

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C#: How to pass null to a function expecting a ref?

I've got the following function: public static extern uint FILES_GetMemoryMapping( [MarshalAs(UnmanagedType.LPStr)] string pPathFile, out ushort Size, [MarshalAs(…

c# null pinvoke parameters ref

C# ref is it like a pointer in C/C++ or a reference in C++?

I'm working with the ref and don't understand clearly "Is it like a pointer as in C/C++ or it's …

c# pointers memory-management reference ref