I am answering my own question on this.
When you have a dataview as the datasource for a datagrid, you have to go to the code for the datagrid.tablestyles and write your code in there. It will not allow you to do it visually via the wizard, but it works fine at the coding level.
The mapping name is the table name of the dataset that feeds the dataview.
Me.EasyTableStyle1.DataGrid = Me.EasyDataGrid2
Me.EasyTableStyle1.GridColumnStyles.AddRange(New System.Windows.Forms.DataGridColumnStyle() Me.FormattedTextBoxColumn1, Me.FormattedTextBoxColumn2, Me.FormattedTextBoxColumn3})
Me.EasyTableStyle1.HeaderForeColor = stemColors.ControlText
Me.EasyTableStyle1.MappingName = "Transactions"
This is the one i changed
PRIOR Me.datagrid.MappingName = ""
AFTER Me.EasyTableStyle1.MappingName = "Transactions"