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nelsonxm

For those that may get the "inst is undefined" when using datepicker.

in Using jQuery UI • 10 months ago

I wanted to share this point with all and those that may run into this problem with datepicker at some point.

I got the "inst is undefined" in firebug with one of my datepickers today.

As it turned out, it was the result of using a selector for the datepicker whose id was not unique. It was duplicated in the input tags of two different forms.

I hope this helps someone from wasting time and pulling out their hair in frustration.

Replies(2)

neil.mill..

Re: For those that may get the "inst is undefined" when using datepicker.

4 months ago

After a full day of hair-pulling, I am compelled to add that while normal jQuery functions may see selectors like $(.my_div #my_id) as different than $(.your_div #my_id), the datepicker can't see the difference.

As a result, while just about any other jQuery function works fine, datepicker can't see they are different.

In my case, I had two forms on a single page, one to create new items, the other to edit existing items.

in Django, I changed the form field widget as follows:

when_done = forms.DateField (widget = forms.TextInput ( attrs = { "id": "mod_when_done" } ) )

All worked after that.

Hope this helps.