[CLOSED] Multicombo with a lot of items

[sadaf]

Hi,
I am using a multicombo with a json reader based store. The store is populated using a datatable. When I load the page, IE gives an error saying "a script on this page is causing IE to slow down. Do you want to stop it?". If I say No, IE keeps popping this message. If I say yes, the multicombo does not contain any items.

Is there a limit on number of items that this control can handle? Are there any properties such as LazyRender which can help? I tried LazyRender=True with LazyMode=Inherit as well as LazyMode=Instance.

[Vladimir]

How much item do you load?
Please consider to use remote paging
https://examples1.ext.net/#/Form/Com...Custom_Search/

[sadaf]

How much item do you load?

Sorry, I meant to mention this. The number of items I am playing with is 3355.

[Vladimir]

It is too much.
Please use remote loading like in the sample is mentioned above

[sadaf]

That would not work for me. I am going to allow multiselect in this combo only if the number of items is dropped down, to say 100, by use of other filters.

[Daniil]

Hi,

I'm afraid we can't help with it.

An IE JavaScript engine is too slow to operate with such number of items at the same time.

I'm not even sure it will work with such number of items (3355) without such message in Chrome or FF which have a much faster JavaScript engine.

I'm not sure why you can't use remote paging. Please clarify.

An alternative solution can be DropDownField + GridPanel with BufferView.

See the forth DropDownField:
https://examples1.ext.net/#/Form/Dro...ield/Overview/

and this example:
https://examples1.ext.net/#/GridPane...ered_GridView/

[sadaf]

I have changed it now so that the list is related to other drop downs and is loaded dynamically only if number of items is less than 200.

I have a few layout questions. Should I start a new thread? Basically, I am using the formpanel with multicombo items.

1) Can I use a CSS class for fieldlabel?
2) Can I put the indicator icon next to field label instead of dropdown? AutoWidth of formpanel does not take this icon into account and a horizontal scrollbar appears.
3) Apply a CSS class to button (in Buttons collection) has no effect.
4) How do I specify padding on left and right for the autowidth formpanel?

[Daniil]

Yes, please keep a one question/issue per thread, or tightly related questions/issues.