[Solved]-How to disable Angular Drop Down if the model is null or empty?-Highcharts

if you can set a controller property in javascript return a bool if it is enabled/disabled then you can do the following:

<select ng-disabled="isdisabled">
    ...
</select>

use the ng-disabled property to still show the object without hiding it. add in your element:

ng-disabled="chartmodel.length == 0"

mitch 955

Source: stackoverflow.com