How can I return two data types in C#?

How can I return two data types in C#?

Return multiple values from a method in C#

  1. Using ref parameters. We can use the ref keyword to return a value to the caller by reference.
  2. Using out parameter modifier. The out keyword causes arguments to be passed by reference.
  3. Using Tuple Class.
  4. Using C#7 ValueTuple.
  5. Using struct or Class.

Can you return a type C#?

You can have the return type to be a superclass of the three classes (either defined by you or just use object ). Then you can return any one of those objects, but you will need to cast it back to the correct type when getting the result.

Can a function return different data types?

So there are some practices you might be violating if your function can return multiple types. Knowing them will help you determine if your particular function should return multiple types anyway. Actually, it’s not very uncommon at all to return different types even in a statically typed language.

What are the different return types in C#?

So, let’s start one by one.

  • Return View. This is a most common and very frequently used type.
  • Return partial View. The concept of a partial view is very similar to the master page concept in Web Form applications.
  • Redirect.
  • Redirect To Action.
  • Return content.
  • Return JSON.
  • Return JavaScript.
  • Return File.

What is return in C#?

return (C# Reference) The return statement terminates execution of the method in which it appears and returns control to the calling method. It can also return an optional value. If the method is a void type, the return statement can be omitted.

What is dynamic return type in C#?

C# 4 introduces a new type, dynamic . The type is a static type, but an object of type dynamic bypasses static type checking. In most cases, it functions like it has type object . At compile time, an element that is typed as dynamic is assumed to support any operation. Therefore, no compiler error is reported.

What is return type method in C#?

Defining Methods in C# The return type is the data type of the value the method returns. If the method is not returning any values, then the return type is void. The parameter list refers to the type, order, and number of the parameters of a method.

How does return work C#?

Should a function always return same type?

SRE_Match and NoneType are instances of object, so in a broad sense they are of the same type. So the rule that “functions should always return only one type” is rather meaningless. Having said that, there is a beautiful simplicity to functions that return objects which all share the same properties.

Can functions return different types depending on the input?

T has to be known at compile-time, from the information available in the function’s signature and its call site alone. And it can only be one type at a time.

What is a function C#?

In C#, a function is a way of packaging code that does something and then returns the value.

What void means in C#?

The void keyword is used in method signatures to declare a method that does not return a value. A method declared with the void return type cannot provide any arguments to any return statements they contain.