javascript - Dropdowns in AngularJS -

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i have angularjs interdependable dropdowns, here demo plunker: http://plnkr.co/edit/mifckko5azr4ljyoge5r?p=preview. when select option first(country) dropdown, want second (state)dropdown displayed checkbox dropdown , not normal dropdown(like in above plunker) , after selecting option second multiple dropdown should multiple dropdown again. here sample checkbox dropdown, fiddle: https://jsfiddle.net/michaeldeongreen/22et6sao/9/ need displayd both state , city dropdowns in plunker.

finally when select country first normal dropdown, second multiple dropdown menu checkbox selecting state should enabled , after selecting state, checkbox dropdown menu selecting city have enabled. until select option first dropdown, second , third dropdowns have disabled , till select option second dropdown third dropdown has disabled.

hope me. in advance!!


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