Hi Mark, > Am 24.06.2016 um 13:19 schrieb Mark Waddingham <m...@livecode.com>: > > On 2016-06-24 13:12, Klaus major-k wrote: >> I have a handler in the stack script like this: >> setprop whatever tValue >> set the whatever of the target to tValue >> answer "The property whatever has been modified for" && the target >> end x_value >> And on a card I have a button: >> ... >> set the whatever of this cd to 22 >> ... >> Now in LC 8.01 I get "Recursion limit" error!? >> I thought that this would not happen for setprop handlers? >> See my setprop script, I actually need to "pass" the message >> to really set that value. Know what I mean? > I think the docs cover this: > ----- > Caution! If a setProp handler in one object's script sets the custom property > for a different object, > and the first object is in the second object's message path, a runaway > recursion will result.
AHA! Thanks a lot, looks like this is the part that I did not understand completely 8-) > For example, if the following handler is in a card script, and you set the > "myCustomProperty" of a button on the card, runaway recursion will result: > > setProp myCustomProperty newValue > set the myCustomProperty of the target to newValue + 1 > -- Because the target is the button, and this handler is in > -- the card, the above statement sends another setProp trigger > -- to the button. > end myCustomProperty > > To avoid this problem, set the lockMessages property to true before setting > the custom property. > > ---- > > You have a setProp handler in the stack, but are setting it on the card - as > the target of the object > is not the same as object containing the setProp handler then you need to use > 'lock messages' around the set in the setProp handler. OK, that was my thought, but was not sure, thanks again! > Warmest Regards, > > Mark. Best Klaus -- Klaus Major http://www.major-k.de kl...@major-k.de _______________________________________________ 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
