Actually, it was a mistake on my part. Here is the modified code:

Dim rowNew As DataRow
gModelTagsDS.Tables.Add("header")
rowNew = gModelTagsDS.Tables("header").NewRow()
rowNew("model") = Trim(txtModelNum.Text)
rowNew("modeldesc") = Trim(txtModelDesc.Text)
rowNew("partdesc") = desc
rowNew("quantity") = temp


I didn't have the table set up in my dataset, as I assumed it would automatically be created. Now it says that those columns do not exist in my table, so how do I define my table?

Thanks Kevin!