html - How can i disabled selection based on ng-model? -

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i want disabled proxy input field selection till attestor selected , both fields readonly, if attestor not selected user should not able select proxy. new angularjs please how can implement logic using ng-model.

main.html 

 <div class="row">     <div class="form-group col-md-6">         <label for="attestorworker" class="col-md-4">attestor:</label>         <div class="col-md-8">             <input type="text" class="form-control" id="attestorworker" required                 ng-model="attestordto.attestorworker" name="attestorworker"                 ng-click="openattestorsearch()"  readonly="readonly"/>         </div>     </div> </div>  <div class="row">     <div class="form-group col-md-6">         <label for="proxyworker" class="col-md-4">proxy :</label>         <div class="col-md-8">             <input type="text" class="form-control" id="proxyworker" required                 ng-model="attestordto.proxyworker" name="proxyworker"                 ng-click="openproxysearch()"  readonly="readonly"/>         </div>    </div> </div>

you can use ng-disabled attribute.

<input type="text" class="form-control" id="proxyworker" required                 ng-model="attestordto.proxyworker" name="proxyworker"                 ng-click="openproxysearch()"  readonly="readonly"                 ng-disabled="!attestordto.attestorworker"/>

changing:

ng-disabled="!attestordto.attestorworker"

to condition want disabled


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