Unanswered: Combo box very slow to display large list in 4.2.0
I am using the latest download...4.2.0
Combo box has about 6000 entries in list.
The time to display list after clicking button is now about 9 seconds.
With ExtJS 2 it is about 3 seconds for the same field and list.
Question: Is there any tweak to improve the performance in 4.2.0?
Sencha Premium Member
use a buffered store in that case. it will only fetch x amount of records at a time and once they scroll down it would fetch the next X number of records
That doesn't work.... yet
Specify a pageSize on the ComboBox, and it will use a PagingToolbar to page the data.
But 3 times slower is not good. There must be something wrong. Maybe it's doing layouts?
I'll have to test it.
It is faster in Chrome...3 secs. compared to 9+ secs in Firefox, about 60 secs in IE.
9249 records in store
This is a serious problem...our users only run IE or firefox.
Should I go back to an older version, or is there likely to be a fix forthcoming?
I have gone back to 4.1.1...
Firefox time is back to about 5 seconds, IE is 30+ seconds on the first display, then 9-10 seconds for subsequent attempts.
So 4.1.1 is slightly better than 4.2.0, but still much worse then 2.x.
Can this be fixed?
I have developed a picker component that uses a regular grid instead of the default combo box list. That means you can use a buffered grid, and that renders way faster than the combo.
You can get it on github.
Combo Box with large data to display . I'm using Extjs 3.4
Please help me how to find below:
This is an IE specific issue when the drop down box has a large number of records (more than 100), it takes too long to open the drop down.
I'm using extjs 3.4
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