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c#winformsreflectionactivator

Creating a class instance from type

I'm trying to create an instance of a class that I can add to a list in a generic way..

I know the type of class that needs to be made and i've been able to make an object of the class using the code below but I have not found a way to create a cast that will allow me to add this to a list.. any ideas?

T is the same as objType

public static List<T> LoadList(string fileName, Type objType)
{
    List<T> objList = new List<T>();
    object o = Activator.CreateInstance(objType);
    objList.Add((**o.GetType()**)o);
    return objList;
}

if theres a better way of doing this too im open to ideas :)

Solution

  • Just use the non-generic API:

    ((IList)objList).Add(o);

    I'm also assuming that type is a generic type-parameter; just to say: type is confusing for this; T or TSomethingSpecific would be more idiomatic.

    Also: this line needs fixing:

    List<type> objList = new List<type>(); // <=== not new List<Object>