Using reflection, call a method of a Field on an object that already exists

Question

I have an instance of a class called AccessData, which inherits from DbContext. So it is an Entity Framework code first context class and looks like this...

Answer 1

Get the field's value:

object fldVal = listField.GetValue(accessData);

Get the MethodInfo for the method you want to invoke:

MethodInfo addMethod = fldVal.GetType().GetMethod("Add", new Type[] { typeof(obj) });

And invoke it:

addMethod.Invoke(fldVal, new object[] { obj });

Or if you're using .NET 4, you may be able to use the new dynamic keyword to simplify the last 2 steps:

dynamic fldVal = listField.GetValue(accessData);
fldVal.Add(obj);