Here is one interesting modification to LOVCombo ux plugin in ExtJS 3.4. The original ExtJS ux Lovcombo i.e.Ext.ux.form.LovCombo plugin was developed by Jozef Sakáloš and can be still found at http://lovcombo.extjs.eu/ . In Ext 4.x onwards, similar modifications can be applied to combo-box through plugin property. Following modification to Ext.ux.form.LovCombo, enables it to have "Select All", "Deselect All", "Text Filtering on values", "bubbling up and down of selection events". Its just a toolbar added in xtemplate of combo-box's dropdown list, and this toolbar has all these buttons, filter text-fields, etc. Here is how it looks like - It has five features - 1) Select All / Deselect All checkbox - to check/uncheck all values and its not part of your data, so selection / deselection logic is separate from user's data. 2) Text Filter - In case of long lists, this will be handy, to filter out values and select /deselec...
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