Make sure you use parenthesis for the call to the method.

>Cathi...
>
>Thanks for your answer. I sort of figured that would be the only way to do it....
>
>How would the syntax look? For example, if I had a function called 'LookupData', would the expression be something like...
>
>ds.Tables[“Orders].Columns.Add(“CompanyName”, typeof(string), "LookupData")
>
>Thanks,
>Kevin