Exception: Error in Like operator: the string pattern '*reference/template%20variables/$_gravatar*' is invalid. at System.Data.LikeNode.AnalyzePattern(String pat) at System.Data.LikeNode.Eval(DataRow row, DataRowVersion version) at System.Data.BinaryNode.EvalBinaryOp(Int32 op, ExpressionNode left, ExpressionNode right, DataRow row, DataRowVersion version, Int32[] recordNos) at System.Data.BinaryNode.Eval(DataRow row, DataRowVersion version) at System.Data.DataExpression.Invoke(DataRow row, DataRowVersion version) at System.Data.Index.InitRecords(IFilter filter) at System.Data.DataTable.GetIndex(IndexField[] indexDesc, DataViewRowState recordStates, IFilter rowFilter) at System.Data.DataView.UpdateIndex(Boolean force, Boolean fireEvent) at System.Data.DataView.SetIndex2(String newSort, DataViewRowState newRowStates, IFilter newRowFilter, Boolean fireEvent) at System.Data.DataView.SetIndex(String newSort, DataViewRowState newRowStates, IFilter newRowFilter) at System.Data.DataView.set_RowFilter(String value) at vinetype.utility.VineTypePage.GetArticleIds(String section) at vinetype.utility.VineTypePage.GetSectionArticles(String section, Boolean bgetsummaries, Boolean setH) at vinetype.utility.VineTypePage.ProcessVinePage(Object sender, EventArgs e)