Bonnie,
Thanks... I'll check it out.

No worries about the C#. You have answered so many of my questions that I have gotten used to coverting... ;-)

>Mike,
>
>I bet you're missing the part where you have to tie it in to a specific table. I looked at some of my Typed DataSet code that was generated by VS, and there's always code like this (and sorry, this will be C# ... you can use the code converter of your choice to get the VB code ... sorry, limited time for me this morning):
>
>

>public class PrescreenRow : System.Data.DataRow
>{
>    private MyPrescreenTable tablePrescreen;
>
>    internal PrescreenRow(System.Data.DataRowBuilder rb) : base(rb)
>    {
>        this.tablePrescreen = (MyPrescreenTable)this.Table;
>    }
>}
>

>
>Look at some of the code generated by your Typed DataSets and see if you have similar stuff. I bet this is all you're missing (but I won't swear to it ... just a guess <g>).
>
>~~Bonnie
>
>
>
>
>
>>>I want to add a calculated field to my DataSet, similar to how I would add a ReadOnly Property to my class that returned a calculation based on other Properties.
>>>
>>I modified my code and now have this:
>>

>>Partial Class PrescreenDataSet
>>
>>    Partial Public Class PrescreenRow
>>        Inherits System.Data.DataRow
>>
>>        Public ReadOnly Property Status() As String
>>
>>            Get
>>                Return "TEST"
>>            End Get
>>
>>        End Property
>>
>>    End Class
>>
>>End Class
>>

>>
>>This works when I evaluate the value, but it won't bind to a datagrid. Is there something special I have to do?