Don't know if this would help, but in a Datagrid, any element of an array that does not have an entry in the dgprop["columns"] will be invisible. I use this to hold a checkbox value, and then I have a group of checkboxes the height of the datagrid with the spacing set to match the height of the rows. Obviously this only works for fixed height rows, although I suppose I could get fancy and try to get a list of the heights of each row if they were variable.
I then have some handlers that display the checkbox value for each row as the user scrolls the datagrid. Also, when the user interacts with the checkboxes, I update the array value of the datagrid appropriately for the corresponding row. The dueling image idea looks intriguing too. Bob On Aug 31, 2012, at 12:43 PM, Peter Haworth wrote: > I've been thinking about doing this myself but haven't implemented it yet. > Here's what I had planned to do, there are probably better ways. > > 1) Get yourself two images, one of the unchecked check box, one of the > checked version, call 'em "Unchecked" and "Checked". > 2) When you're putting data into your field, set the imagesource of char x > of line y of field "your field" to the ID of Image "Unchecked" (or > "Checked" depedning on your requirements) > 3) Use the following mousedown handler: > > on mousedown > switch word 2 of the clickcharchunk > case the ID of Image "Unchecked" > set the imagesource of char x of line (the clickline) of field > "your field" to the ID of image "Checked" > < do whatever else is needed when the box is checked> > break > case the ID of image "Checked" > set the imagesource of char x of line (the clickline) of field > "your field" to the ID of image "Unhecked" > < do whatever else is needed when the box is unchecked> > break > end switch > end mousedown > > All totally untested but I think would work in principle. > > Pete > lcSQL Software <http://www.lcsql.com> > > > > On Fri, Aug 31, 2012 at 11:54 AM, Charles Szasz <csz...@mac.com> wrote: > >> I know this has been done before but in previous cases discussion involved >> two or more columns. My situation does not require multiple columns. Does >> anybody have a good idea on how to implement checkboxes in a scrolling >> field? Thanks for your time! >> >> Charles Szasz >> csz...@mac.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 >> > _______________________________________________ > 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 _______________________________________________ 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
