The code you have in the default behavior is the one installed by the inspector located in one of the behavior button (stack only script now, since the dg2)
It contains the minimal example code to help the developer starting; FillinData, preFillinData, LayoutControl, etc If you are modifying the template for the datagrid (adding a control, deleting a control, etc) you have to change the code for your datagrid row manually. By default the minimal script is considering you have a field "Label" and a "background" graphic. If you are deleting one of them in the template and you do not update the behavior script for the row accordingly, the datagrid library will fire an error when it will try to apply the template to a row. Note that if your are removing the "background" graphic you will lose the possibility to "hilited" a row, at least on screen. When you are updating the template in DGH now, it will install first the default script (like the inspector). If you have done a modification in the template (especially after having delete one object), DGH can help you by building the script required for the controls it will find inside the template. As we want not to erase something in the script which could has been changed by the developer, the operation is manual. Ideally to prevent the datagrid library to send an error with missing controls in the template, you should update the script before to click onto the "update" button. On Sun, Aug 5, 2018 at 7:03 PM, Sannyasin Brahmanathaswami via use-livecode <use-livecode@lists.runrev.com> wrote: > I slowly studying as much as we can on the datagrid,and "digging" in it > with an first attempt to build a form. > > One thing is not clear to me. > > 1) Have the WYSIG panel to build the datagrid form. > > 2) why then do we have, in the Behavior Script this handler? > > Isn't the layout already pre-determined in the template? > > on LayoutControl pControlRect, pWorkingRect > > local theFieldRect > > -- This message is sent when you should layout your template's controls. > > -- This is where you resize the 'Background' graphic, resize fields and > > -- position objects. > > -- For fixed height data grid forms you can use items 1 through 4 of > pControlRect as > > -- boundaries for laying out your controls. > > -- For variable height data grid forms you can use items 1 through 3 of > pControlRect as > > -- boundaries, expanding the height of your control as needed. > > -- The working rect is defined area of the control you can safelt use. > > -- Use this rect to make sure your controls don't overlap with any edit > mode controls. > > -- Example: > > put the rect of field "Label" of me into theFieldRect > > put item 1 of pWorkingRect into item 1 of theFieldRect > > put item 3 of pWorkingRect - 5 into item 3 of theFieldRect > > set the rect of field "Label" of me to theFieldRect > > set the rect of graphic "Background" of me to pControlRect > > end LayoutControl > > > BR > > > _______________________________________________ > 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 > -- Zryip TheSlug http://www.aslugontheroad.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
