I am need hide/show trigger on fields (combobox,*date* and etc.) without invoke method doComponentLayout() (source code of setReadOnly method). The method doComponentLayout() is very slowly on IE. Can anybody help me? Thank you!
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You should be able to show/hide the triggerEl that is a property of anything that extends Ext.form.field.Trigger (such as combo, date, etc.).
See live example here:
http://jsfiddle.net/hWGYE/765/