Say: Common assemly:

using System.Data;
namespace Common
{
    public class SomeStronglyTypedDataSet : DataSet
    {
    }
}

Assembly B:

namespace ProjectB
{
    public class SomeClass
    {
        public void DoSomethingWithDS(Common.SomeStronglyTypedDataSet ds)
        {
        }
    }
}

Then in ProjectA:

namespace ProjectA
{
    public class SomeClass
    {
        public void SomeMethod()
        {
        Common.SomeStronglyTypedDataSet ds = new Common.SomeStronglyTypedDataSet();
        ProjectB.SomeClass  sc = new ProjectB.SomeClass();
        sc.DoSomethingWithDS(ds);
        }
    }
}

Both A and B need a reference to Common. A also needs a reference to B.


>Hmm
>I like that
>If i put the class in an assembly, will I be able to pass a stronglyped dataset from the project's namespace as an argument to a method in the assembly?
>What type will the parameter in the method in the assembly have?
>
>
>
>
>>>Why did you need to have the class in both ProjectA and ProjectB ?
>In any case it would probably be better to put such a class in a separate 'Common' assembly and reference that assembly from all three of the existing projects.