>SELECT fielda, fieldb FROM... >.as the RecordSource, then set the ColumnCount to 3, >giving me my extra field. The problem with this is that >the extra column is read only, I can't store anything in >it at all. I am missing something obvious here? Try : SELECT ; fielda ,; fieldb ,; .f. AS fieldtf ,; FROM yourtable ; blah, blah, blah Make sure the .readonly proeprty of the fieldtf field is set to .t.