Subject Re: Null datasource From Mervyn Bick <invalid@invalid.invalid> Date Wed, 10 Mar 2021 13:50:40 +0200 Newsgroups dbase.getting-started On 2021/03/10 09:57, Roz Bernitz wrote: > How do I remove the datasource of an object? In this instance, if CARSBOX = true, the bodycode is no longer valid > > >     function CARSBOX_onChange() >        if this.Value = true >         form.typecontainer.vehtypecode.dataSource =  'array {"SED","HAT","XVR","EST","COU","SCC","SFT","CCP","MPV","REC","ATE","MBS"}' >         form.typecontainer.bodycodebox2.dataSource = "" >         form.typecontainer.subbodycode.dataSource =  "" >         form.Itsacar() >        endif >        return > > Setting datasource to "" is creating Error:  Data type mismatch.  Expecting:  Object Although "" is an empty string and not an object I don't think this is what's upsetting dBASE.  Assigning an empty string to a dataSource property should not cause a problem. My money is on a typo in either bodycodebox2 or subbodycode.  Assuming, of course, that typecontainer is actually the parent of bodycode2 and subbodycode. Mervyn.