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reflection - How do I create an instance from a string in C#?

I'm reading information from an XML which contains the type of an object that I need to instantiate along with it's constructor parameters.

The object type is actually in another project, within a sibling namespace. (I need to create a Company.Project2.Type within Company.Project1 class.)

I found this question, but it doesn't handle the constructor parameters or the fact that it's in another namespace.

How can I do this?

Edit: The assembly name and default namespace wasn't set correctly in the project properties.

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  • You need to specify the full type name to Type.GetType(), including namespace, e.g. "Company.Project2.Type"
  • If the type isn't in the same assembly (or mscorlib), you need to give the assembly name too, including version information if it's strongly typed. For example, for a non-strongly typed assembly Company.Project2.dll, you might specify "Company.Project2.Type, Company.Project2".
  • To call a constructor with parameters you can call Activator.CreateInstance(Type, Object[]) or get the exact constructor you want with Type.GetConstructor() and then call ConstructorInfo.Invoke().

If that doesn't help, please give more information.


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