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sebfz1 / wicket-jquery-ui

jQuery UI & Kendo UI integration in Wicket
http://www.7thweb.net/wicket-jquery-ui/
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Alternative to Kendo Combobox #243

Closed reckart closed 6 years ago

reckart commented 8 years ago

Is there a JQuery-UI alternative for the Kendo Combobox? The AutoCompleteTextField looks useful, but lacks the styling with the arrow that triggers the dropdown box. The JQuery UI example of a combobox that looks similar to the Kendo Combobox seems to be just that: an example - it is not in any way integrated and/or supplied via the JQuery UI integration in Wicket, right?

sebfz1 commented 8 years ago

Hi Richard, afaik there is no combobox widget supplied out-of-the box in JQuery-UI. I had a look to the example some time ago but I was not really convinced... Please let this issue open, I will have a look again. (Cannot promess it will be "soon", however...)

reckart commented 8 years ago

I just noticed that Kendo UI Core is now licensed under Apache License 2.0 - that also kind of addresses the problem :)

sebfz1 commented 8 years ago

If using Kendo UI is an option for you, I think you will enjoy it :)

reckart commented 8 years ago

We are actually already using it but I wanted to switch away from it due to its licensing. But since Kendo UI Core now apparently is properly licensed under the ASL 2.0, that's a non-issue :) We might even start using it more extensively.

reckart commented 8 years ago

Although there is still a problem with the Kendo Combobox. It looks like it loads its data always completely when the box is rendered. We have some cases where thousands of options are possible. So I need to check if the Kendo Combobox also allows loading the dropdown contents on-demand via AJAX...

sebfz1 commented 8 years ago

The content can be more static, ie generate the select/options with a listview and apply the combobox behavior on the parent container (iirc)... (new KendoUIBehavior(JQueryBehavior.getSelector(myContainer), ComboboxBehavior.METHOD). Something like that...

reckart commented 8 years ago

The options are already loaded "statically". I.e. when the Combobox is rendered, all the data is included as a JSON object. I need it to be more dynamic. I.e. when the users starts writing or when the user opens the dropdown box, only then should the choices be loaded from the backend via AJAX. The AutoCompleteTextField works that way by default. Presently, we have the problem that for Kendo Comboboxes with many choices, easily several MB of data are transferred to the browser each time the Combobox rerendered.

sebfz1 commented 7 years ago

Hi Richard,

Did the Kendo's AutoCompleteTextField answered your need?

Thanks, Sebastien

reckart commented 7 years ago

I'm afraid I haven't had the chance to work on it lately.

reckart commented 6 years ago

Finally, I had a look at the Kendo AutoComplete. I'm now actually planning to use it for cases where there are a lot of choices and server-side filtering is required.

Unfortunately, the suggestion pane does not open automatically when the users clicks into the AutoComplete field, neither if it already contains text nor if it is empty. However, this seems to be (unfortunately) intended in this way by Telerik.

Also, AutoComplete and ComboBox both to not refocus automatically. I had to hack Wicket to ensure they automatically receive their focus back after an AJAX action (https://github.com/webanno/webanno/blob/4c2fd35eab97d30a949847c7e2c7dfdc4ca51042/webanno-ui-core/src/main/java/de/tudarmstadt/ukp/clarin/webanno/ui/core/kendo/wicket-jquery-focus-patch.js#L90).

I also had a look at Select2, but it also has issues. One thing which is pretty cool about Select2 though is that is supports infinite scrolling with server-side paging.

I think this one can be closed now. Thanks!