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micgala
1 Dec 2014, 8:45 AM
Hi.

Have anyone implemented a comboBox wich show a clear button as well (twin trigger) in GXT 3?

I've done this LONG ago, in GXT2
http://www.sencha.com/forum/showthread.php?83895-ComboBox-with-a-possibility-to-clear-value

But now, I would like to port this to GXT3. Problem is I don't know exactly how to do that in GXT3.
Can someone please shed some light on me?

Thanks,
Michel.

Andreas Samjeske
2 Dec 2014, 3:51 AM
We came up with another solution: Where needed, we added an empty entry to the list of choices.
Some difficulties arose:
- Emptystring as display name for the empty entry leads to an entry in the list, which has a smaller height than the other entrys. Solution: pattern for list entrys adds a sinlge blank (nbsp;) to each entry.
- Depending on type of Combobox, change to empty entry is a change to null. ValueChange might not fire.

micgala
2 Dec 2014, 3:56 AM
Unfortunatelly that is not an option for me. I really need the clear button, to have the same look and feel as we had when using gxt 2.