On Thu, Dec 30, 2010 at 4:23 PM, JosepM <jmye...@mac.com> wrote: > > > To reference to next row from the actual is better use > > > > SetDataOfIndex the dgindex of me+1, "COL1", "Text of the Col" > > > > or can be a problem with datagrid index? > > <Hmm, I think this might cause problems. The data grid won't throw an > error > <if you try to assign data to an index that you haven't added but I also > <don't think it will update the total height of the data in the grid which > <AddData will do. This may cause problems when scrolling through your data > <later on. > > Whenever I refer to the other line is why I have the certainty that there > is, so the first row generates, if necessary, additional lines. So, in > theory should not cause any error. > > I have been trying to create several rows which this create more rows to > force the displacement of the datagrid height and, at first glance seems to > work and move correctly. > > The creation of these lines is always in last position and never between. > > Why you say that don't update de total height of data? >
The data grid has to keep track of the total height of the data in a data grid. For a data grid table or a data grid form with a fixed row height this is just the row height * the number of records in the table. For data grid form with variable row heights the total height is cached. This cache is updated when you add/remove rows. If you use SetDataOfIndex to add a row to a data grid form with variable row heights then the cached height would not be correct. I just looked at the code again and there are other operations that occur when adding a row to a data grid such as storing of the sequence for the index. So I would recommend that you always use AddData to add rows to the data grid. -- Trevor DeVore Blue Mango Learning Systems ScreenSteps: http://www.screensteps.com Releasable Revolution Resources for Developers: http://revolution.bluemangolearning.com _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
