I have a dataset that I am trying to filter.<BR><BR>This dataset includes a field containing a list of items. For example the field name is car_type and would contain - ford, buick, toyota.<BR><BR>I want to filter the list based on this field. For instance, I want all records that contain toyota in the car_type field.<BR><BR>I was trying to do something like this -<BR><BR>dsItems.Tables(0).Select(InStr(car_type, "toyota")<BR><BR>I am getting the following error :<BR>"The expression contains undefined function call InStr()."<BR><BR>Is InStr not a valid function here? If not, any other suggestions?