Issues when adding columns dynamically - Hiding columns and persisting column widths

Hi

We have an Aspxgrid that is bound to a Sql Datasource. Some columns are defined in the aspx markup while other columns are added in the DataBinding event as they are unknown at design time. Below is how we are adding the columns

Visual Basic
Private Sub grid_DataBinding(sender As Object, e As EventArgs) Handles grid.DataBinding

     grid.DataSource = dsWip
     Dim dw As DataView = CType(dsWip.Select(DataSourceSelectArguments.Empty), DataView)

     If dw IsNot Nothing Then
         Dim dataTable As DataTable = dw.ToTable()

         If dataTable.Rows.Count > 0 Then
             ' Loop through the columns and add dynamic columns
             For Each column As DataColumn In dataTable.Columns
                 ' Skip the standard columns
                 If IsNotInColumnList(column.ColumnName) Then

                     Dim CKcolumn As New DevExpress.Web.GridViewDataCheckColumn()
                     CKcolumn.ReadOnly = True
                     CKcolumn.FieldName = column.ColumnName
                     CKcolumn.Caption = column.ColumnName
                     CKcolumn.PropertiesCheckEdit.ConvertEmptyStringToNull = True
                     CKcolumn.PropertiesCheckEdit.NullDisplayText = "No"
                     CKcolumn.Settings.AllowHeaderFilter = DevExpress.Utils.DefaultBoolean.False
                     CKcolumn.Settings.ShowFilterRowMenu = DevExpress.Utils.DefaultBoolean.False
                     CKcolumn.Settings.AllowAutoFilter = DevExpress.Utils.DefaultBoolean.False
                     CKcolumn.Settings.ShowInFilterControl = DevExpress.Utils.DefaultBoolean.False
                     grid.Columns.Add(CKcolumn)
                 End If
             Next
         End If
     End If

 End Sub

This works fine, but I am having 2 problems as a result. First when a user attempts to hide one of the dynamically added columns via the "Customization dialog" the columns are not added. Columns defined in the aspx page will hide, but not those added dynamically.

Secondly, even though SettingsCookies-Enabled="True", changes in column widths are not being persisted.

Any guidance would be appreciated.