protected void ASPxGridView1_DataBinding(object sender, EventArgs e) { GridViewDataColumn newFilterColumn = null; IEnumerable <GridViewDataColumn> columns = GetDataColumns(); foreach (GridViewDataColumn column in columns) { if (string.IsNullOrEmpty(Expressions[column]) && !string.IsNullOrEmpty(column.FilterExpression)) { newFilterColumn = column; break; } } if (newFilterColumn != null) { foreach (GridViewDataColumn column in columns) { if (!Equals(column, newFilterColumn)) { ASPxGridView1.AutoFilterByColumn(column, null); } } } }