How can I create an AngularJS dropdown that requires a selection only when a specific variable, such as 'x', is set to true? If 'x' is false, it should allow saving without a selection. Below is the code for my dropdown:
<select class="form-control dropdownheight"
ng-model="search.hardware"
ng-change="search()" >
<option value="" selected>Select Hardware</option>
<option ng-repeat="box in boxes" value="{{box.name}}">{{box.name}}</option>
</select>
You should utilize ng required in this scenario.
<form name="form">
<select ng-model="hardware" class="form-control dropdownheight" ng-change="search()" >
<option value="" selected>Select Hardware</option>
<option ng-repeat="box in boxes" value="{{box.name}}">{{box.name}}</option>
</select>
<label for="input">This input should be filled if `required` is set to true: </label>
<input type="text" id="input" name="input" ng-required="isRequired" /><br>
<hr>
<code>{{form.input.$error}}</code><br>
isRequired = <code>{{isRequired}}</code>
<input type="submit" value="Save" ng-disabled="isRequired"/>
</form>
I have put together a plunkr for reference:
To make a dropdown required in AngularJS, you can use the ng-required directive:
<select class="form-control dropdownheight"
ng-model="search.hardware"
ng-change="search()"
ng-required="x">
<option value="" selected>Select Hardware</option>
<option ng-repeat="box in boxes" value="{{box.name}}">{{box.name}}</option>
</select>
Take a look at this jsfiddle
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