4 Replies Latest reply on Jul 25, 2013 10:25 AM by Soofi

Getting message "Cannot set attribute of null canvas item" for item which is synchronize from

user11988050 Jul 23, 2013 11:45 PM

Hello,

We are in the processing of upgrading our forms and libraries from 6i to 10g. Here is the scenario:

I have itemA on a canvas with Synchronize with Item set to itemB.

ItemB is not displayed.

When New Item Instance: set_item_instance_property('itemA', current_record, required, property_true);

When it hits this line, I get the message "Cannot set attribute of null canvas item : itemB"

Does anyone know if there's a workaround for this? Is this a new "Feature" in 10g? It worked fine in 6i.

Thank you.

1. Re: Getting message "Cannot set attribute of null canvas item" for item which is synchronize from

Andreas Weiden Jul 24, 2013 8:55 AM (in response to user11988050)

The question is why do you set the "Synchronize with item" for an invisible item? Doesn't make much sense to me.
Like Show 0 Likes(0)

Actions
2. Re: Getting message "Cannot set attribute of null canvas item" for item which is synchronize from

Soofi Jul 24, 2013 9:45 AM (in response to user11988050)

Hi,
You can give a canvas name to that item in the item property pallete and can set the visible property - No.

Hope this clears your error.

1 person found this helpful
Like Show 0 Likes(0)

Actions
3. Re: Getting message "Cannot set attribute of null canvas item" for item which is synchronize from

user11988050 Jul 24, 2013 2:04 PM (in response to Soofi)

Soofi,

Thank you for that suggestion. That solved one problem. Now I have set_item_instance_property(itemA, current_record, required, property_true). This worked fine in 6i but in10g, i get the message: FRM-41383 No Such Property for set_item_instance_property.I can't seem to find any documentation that says this has been made obsolette.

Thank you.
Like Show 0 Likes(0)

Actions
4. Re: Getting message "Cannot set attribute of null canvas item" for item which is synchronize from

Soofi Jul 25, 2013 10:25 AM (in response to user11988050)

Can you just please tell me in which trigger you are using the set_item_instance_property and for what reason you are using it?
Like Show 0 Likes(0)

Actions

Go to original post

Join the world’s largest interactive community dedicated to Oracle technologies.