List of special extended properties

Michael Deroche

Question

I was wondering if there was a complete list of special extended properties (e.g. OSTagName which changes the HTML tag of the element). I searched through the documentation but didn't find anything on the subject.

03 Apr 2015

João Rosado

Staff

Hi Michael,

As far as I know, that is the only special one. Also it was introduced as a hack/workaround (and not really as a fully supported feature), so there is not much information about it.

But just to let it clear: there are some values that have no effect, so they can also be considered "special". Like the "Id".

Regardsm
João Rosado

03 Apr 2015

Tiago Neves

Hi João,

Isn't that the case also with "type"? Any value in the extended properties of "type" property will have no effect...

Cheers

03 Apr 2015

João Rosado

Staff

Hi,

Yes the type on Inputs/Buttons cannot be set. This happens with most of the attributes that are already set by the default widgets.
I would say that not being able to override an existing attribute that the platform sets should be considered the "normal behavior". But in some cases it is usefull and there were exceptions made explicitly on those.

For example: the "class" usually (from what I remember this one is a bit inconsistent between widgets, in some cases it concatenates) is able to overrides what is set in the "style".

And cases like the "onclick" (on a button for example) will not override the properties completly. It will concatenate the onclick from the extended property with the default action.

There can be situations that there are not being considered right now and could be considered to allow them to be overriden in a future version, so feel free to make suggestions.
In regards to the type of buttons/inputs, in some cases it breaks the pages rendering because the server will be expecting them to be present in the submit actions, so I really don't think we can allow to override that one.

Regards,
João Rosado

03 Apr 2015

1 reply

06 Apr 2015

Show thread

Hide thread

Michael Deroche

João Rosado wrote:

Yes the type on Inputs/Buttons cannot be set.

I am not seeing this behavior. I did the following:

Made a new application
Ticked the Anonymous role
Dragged a button over and set the "type" to "button" in the extended properties panel
Dragged a button over and didn't set the type (didn't do anything to it)
Published

This is the HTML that is generated. The "type" changes between the two due to me setting the "type" property in the extended properties panel.

I can also change the type to something that isn't a standard value, such as "stuff":

I'm using version 9.0.0.38.

EDIT: Going off topic in this thread, I'll start a new one to discuss this.

06 Apr 2015

Harry de Boer

Hi,

Seraching the forums it seems like this question is not answered completely: Is there a complete list of extended properties that work like:

class
style
ostagname
autofocus
??

Regards, Harry

14 Oct 2017

Carlos Escórcio

Hello,

I am also searching for this list of extended properties. Is there any place i can find it?

Thanks

14 May 2019

Daniël Kuhlmann

MVP

Hi,

You can use it to override standard html properties/attributes (some of them already mentioned in previous replies) or introduce your own properties, that you can use in Javascript to implement some behaviour.