Is it possible to create an object without a class in C#?

问题

In many languages you can create an object without creating a data type, and add properties to that object.

For example in JS or AS:

 var myObject = {};
 myObject.myParameter = "hello world";

Or you can create structures in C and C++.

Is it possible to do that in C#?

回答1:

Yes there is ExpandoObject under System.Dynamic namespace.You could add properties on the fly like you do in other dynamic languages

dynamic dynObject = new ExpandoObject();
dynObject.someProperty= "Value";

http://msdn.microsoft.com/en-us/library/system.dynamic.expandoobject.aspx

回答2:

Anonymous Types is what you looking for. Eg -

var v = new { Amount = 108, Message = "Hello" };

Above code will create a new object with properties Amount and Message.

回答3:

Read about ExpandoObject

dynamic myObject = new ExpandoObject();
myObject.myParameter = "hello world";

Console.WriteLine(myObject.myParameter);

回答4:

C# 9 coming up with new feature , you can create object without new now https://devblogs.microsoft.com/dotnet/welcome-to-c-9-0/#target-typed-new-expressions

new expressions in C# have always required a type to be specified (except for implicitly typed array expressions). Now you can leave out the type if there’s a clear type that the expressions is being assigned to.

Point p = new (3, 5);

来源：https://stackoverflow.com/questions/13000648/is-it-possible-to-create-an-object-without-a-class-in-c