error ref

Both ref and out are keywords in C #, and the functionality is similar to specifying that a parameter is passed by reference.For compiled programs, there is no difference between them, that is, they only have syntax differences.To sum up, they have

ref keyword causes an argument to be passed by reference, not by value.">The ref keyword passes arguments by reference, not by value. The effect of passing by reference is that any changes to the parameters in the called method are reflected in the

I had this problem when I was learning C #, but I didn't dig into it. Last night, when I thought about this problem, I tried to knock the code, and the result from the running, the more you see the more chaotic. On the basis of the review of some

[C #] Analysis of ref and out parameters, The parameter passed by reference is a major feature of C # compared with many other languages. It is not easy to understand this concept in depth, then, the value type and reference type will become even

ref (C # Reference) Visual Studio 2015Other versions The REF keyword causes the parameter to be passed by reference, not by value. The effect passed by reference is that any changes to the parameters in the called method are reflected in the

The ref keyword allows the parameter to be passed by reference. The effect is that when the control is passed back to the call method, any changes to the parameters in the method will be reflected in this variable. To use the ref parameter, you must

In the study of C #, there are always some language commands such as the use of similar but not the same, today's discussion is Out and ref in C #The difference between the first discussion is the respective usage, and below I will summarize the

[C # Basics] differences between ref and out, When using methods in C # to obtain the return value, only one return value is usually obtained. Therefore, when a method needs to return multiple values, it needs to use ref and out. What are the

First: Both are passed by address and will change the value of the original parameter after use.Second: Ref can pass the value of the parameter into the function, but out is to empty the parameters, that is, you can not pass a value from out into

This article mainly introduces the difference between ref and out in C #, when a method needs to return multiple values, it needs to use ref and out, then the two methods are different, the need for friends can refer to the nextWhen you use a method