Here is the scenario;
-Type something to combobox
-Select something on the list
-Search and fill gridPanel
-Clear combobox and then search again
-It fills gridPanel with value that before we cleared.
I this this is a bug.
If you use Ext.getCmp(‘myCombo’).getValue() or Ext.getCmp(‘myCombo’).lastSelectionText, it does not work.
You have to use Ext.getCmp(‘myCombo’).getRawValue(). This works 😉
By the way comboBox is not readonly.