Mike I found a sample for you

i.e.

DataTable workTable = new DataTable("Customers");

DataColumn workCol = workTable.Columns.Add("CustID", typeof(Int32));
workCol.AllowDBNull = false;
workCol.Unique = true;

workTable.Columns.Add("CustLName", typeof(String));
workTable.Columns.Add("CustFName", typeof(String));
workTable.Columns.Add("Purchases", typeof(Double));

HTH
--> Shawn


>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!