Joe,

>I have a mmPicker on my WinForm configured as follows:
>VisitorCompanyNamePicker
>
>BindingSource: Company
>BindingSourceMember: CompanyName
>BindingValueSource: Visitor
>BindingValueSourceMember: CompanyName
>
>DataCommand: SELECT CompanyName FROM Companies Order By CompanyName
>GridColumns: VisitorCompanyColumn (BindingSourceMember = CompanyName)
>
>PickListDisplayMember: CompanyName
>PicListSearchField: CompanyName
>PickListValueMember: CompanyName
>
>I can use this control successfully to update existing records, but get the following error each time I use the control to assign a value to a new recor
>Cannot insert the value NULL into column 'CompanyName', table 'StellarVisiTrakProd.dbo.Visitors'; column does not allow nulls. INSERT fails.

I don't think it has anything to do with the picker. It sounds like the Visitors table CompanyName column is simply not being filled in when you create a new row. I recommend setting a breakpoint in your Save handler to see what the value of the column is when you are getting ready to save.

Regards,