>>I have a dataset and I need to remove some columns for charting purposes.<

Steve,

There are a few Remove methods on the Columns collection of the DataTable. I think it'd be easiest to copy your DataSet (or you're probably just using the DataTable) and remove the columns you don't need. Something like this:

Dim ReportTable As DataTable = MyDataSet.Tables("MyTables").Copy()
ReportTable.Columns.Remove("MyColumnName")

~~Bonnie