Datagrid selectionChanged bug?

Bob Sneidar bobsneidar at
Wed Jun 6 10:36:18 EDT 2018

Trevor you are brilliant. Now that you put it that way, that is *exactly* what is happening. The datagrid works so seamlessly it's easy to forget it's not data I am working with but groups of objects that must be deleted and recreated as needed. 

Bob S

> On Jun 5, 2018, at 21:50 , Trevor DeVore via use-livecode <use-livecode at> wrote:
> On Tue, Jun 5, 2018 at 5:27 PM, Bob Sneidar via use-livecode <
> use-livecode at> wrote:
>> I suppose I can get around it by using send in time so the actual
>> selectionChanged handler finishes before the cascade of form updates
>> happens. But if it is a bug and shouldn't be happening, I suppose I should
>> try to make a stack that reproduces it. (I may have already done so but I
>> don't keep track of my own bug reports!)
> The issue you are seeing is probably caused by the inability of the engine
> to delete the object that is the target of the current event. When you
> replace the data grid contents during selectionChanged you are trying to
> delete the control that was clicked on and trigger the selectionChanged
> message. The engine doesn’t like that. You will need to use `send in time`
> to accomplish what you are after.
> -- 
> Trevor DeVore
> ScreenSteps

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