Subject Re: REPORT GROUPING ON FIELDS From Mervyn Bick <invalid@invalid.invalid> Date Fri, 23 Jun 2017 14:37:31 +0200 Newsgroups dbase.getting-started On 2017-06-23 10:38 AM, Mustansir Ghor wrote: > Dear Mervyn > > Your assistance is a great help. Thank you. > > There is some confusion with me to understand below code. Here "this" refers for classname whose base class is REPORT. then can you explain what this statement means "form.STREAMFRAME1 = form.pagetemplate1.streamframe1". Also same with last 4 statements. I mean what does "form" represent. > > >   this.PAGETEMPLATE1.STREAMFRAME1 = new STREAMFRAME(this.PAGETEMPLATE1) >     with (this.PAGETEMPLATE1.STREAMFRAME1) >        height = 11592.0 >        left = 360.0 >        top = 1365.0 >        width = 9360.0 >        form.STREAMFRAME1 = form.pagetemplate1.streamframe1 >     endwith > >     with (this.reportGroup.footerBand) >        height = 250.0 >     endwith > >     with (this.reportGroup.headerBand) >        height = 250.0 >     endwith > >     this.firstPageTemplate = this.form.pagetemplate1 >     this.form.pagetemplate1.nextPageTemplate = this.form.pagetemplate1 >     this.form.pagetemplate1.streamframe1.streamSource = this.form.streamsource1 >     this.form.streamsource1.rowset = this.form.customers1.rowset > In the constructor code that you show 'this' refers to the form i.e the report. in the last 4 lines both 'this' and 'this.form' refer to the report itself.  I have no idea as to why the programmer who created the report engine opted for this, to my mind, peculiar naming.  The code is streamed out by the designer and it works even if it does look confusing. :-) You can try the following for yourself.  Before the last 4 lines add        ? this.classname,this.form.classname Comment out the 4 lines //   this.firstPageTemplate = this.form.pagetemplate1 //   this.form.pagetemplate1.nextPageTemplate = this.form.pagetemplate1 //   this.form.pagetemplate1.streamframe1.streamSource = this.form.streamsource1 //   this.form.streamsource1.rowset = this.form.customers1.rowset Add the following //   form.firstPageTemplate = this.form.pagetemplate1 //   form.pagetemplate1.nextPageTemplate = form.pagetemplate1 //   form.pagetemplate1.streamframe1.streamSource = form.streamsource1 //   form.streamsource1.rowset = form.customers1.rowset     this.firstPageTemplate = this.form.pagetemplate1     this.pagetemplate1.nextPageTemplate = this.pagetemplate1     this.pagetemplate1.streamframe1.streamSource = this.streamsource1     this.streamsource1.rowset = this.customers1.rowset Unmark the top block, mark the second block and run the report again. The report should behave exactly the same no matter which of the 3 blocks you use. Mervyn.