What is the best way to automatically select options in a dynamic dropdown menu

Question

What is the best way to automatically select options in a dynamic dropdown menu

In my code, I have a list of user records. One column has a dropdown to change the produced by. The ng-change function is working fine. However, after refreshing the page, the dropdown does not show the last selected option. Please review my code below -

Identity

<select name="repeatSelect" id="repeatSelect" ng-model="model_produced_by" style="width: 62px;" ng-change="change_produced_by(model_produced_by, order.Order.id)">
     <option value="">Select Produced By</option>
     <option ng-repeat="option in produced_by.availableOptions" value="{{option.id}}" ng-selected="option.id == order.Order.assigned_to">{{option.name}}</option>
</select>

Output -

<select ng-change="change_produced_by(model_produced_by, order.Order.id)" style="width: 62px;" ng-model="model_produced_by" id="repeatSelect" name="repeatSelect" class="ng-pristine ng-valid ng-empty ng-touched">
   <option value="">Select Produced By</option>
   <option ng-selected="option.id == order.Order.assigned_to" value="1" ng-repeat="option in produced_by.availableOptions" class="ng-binding ng-scope">Outsourced</option>
   <option ng-selected="option.id == order.Order.assigned_to" value="2" ng-repeat="option in produced_by.availableOptions" class="ng-binding ng-scope">In-House</option> 
  <option ng-selected="option.id == order.Order.assigned_to" value="3" ng-repeat="option in produced_by.availableOptions" class="ng-binding ng-scope">Local Store/Printer</option>
</select>

I want to select the value that matches

option.id == order.Order.assigned_to

, but it's not working. I've also used ng-init in the select tag. The last option is appearing in every dropdown. Can you help me find the error?

https://i.sstatic.net/QwPIv.jpg

javascript angularjs

Answer 1

Answer №1

The ideal approach is to utilize ngOptions in combination with ngModel:

<select name="repeatSelect" id="repeatSelect" style="width: 62px;" 
    ng-model="order.Order.assigned_to"         
    ng-change="change_produced_by(model_produced_by, order.Order.id)"
    ng-options="option.id as option.name for option in produced_by.availableOptions">
     <option value="">Select Produced By</option>
</select>

Answer 2

The ideal approach is to utilize ngOptions in combination with ngModel:

<select name="repeatSelect" id="repeatSelect" style="width: 62px;" 
    ng-model="order.Order.assigned_to"         
    ng-change="change_produced_by(model_produced_by, order.Order.id)"
    ng-options="option.id as option.name for option in produced_by.availableOptions">
     <option value="">Select Produced By</option>
</select>

Answer 3

Answer №2

To ensure that the select functionality works correctly, it is important to define the ng-model property as shown in the following example:

<select id="inptAdmin" name="inptAdmin" class="form-control" 
  ng-model="res.adminUser.id" ng-options="user.id as user.name + ' - ' + user.email for user in listUser" required="required">
</select>

Within my controller, I have a listUser property which contains a list of user objects. In the ng-options declaration, I specify that the id of these objects should be used as the value, and the ng-model specifies where the selected value will be stored. With this setup, if ' res.adminUser.id ' is filled, the corresponding value in the select will be automatically selected.

I trust this explanation has been helpful to you.

Answer 4

To ensure that the select functionality works correctly, it is important to define the ng-model property as shown in the following example:

<select id="inptAdmin" name="inptAdmin" class="form-control" 
  ng-model="res.adminUser.id" ng-options="user.id as user.name + ' - ' + user.email for user in listUser" required="required">
</select>

Within my controller, I have a listUser property which contains a list of user objects. In the ng-options declaration, I specify that the id of these objects should be used as the value, and the ng-model specifies where the selected value will be stored. With this setup, if ' res.adminUser.id ' is filled, the corresponding value in the select will be automatically selected.

I trust this explanation has been helpful to you.

Answer 5

Answer №3

Although I am not familiar with angular js, I do understand your issue. If you can find a way to execute this operation, it should help resolve your problem. It is necessary to create the dropdown html below for the selected option 2:

<select ng-change="change_produced_by(model_produced_by, order.Order.id)" style="width: 62px;" ng-model="model_produced_by" id="repeatSelect" name="repeatSelect" class="ng-pristine ng-valid ng-empty ng-touched">
   <option value="">Select Produced By</option>
   <option value="1" ng-repeat="option in produced_by.availableOptions" class="ng-binding ng-scope">Outsourced</option>
   <option ng-selected="true" value="2" ng-repeat="option in produced_by.availableOptions" class="ng-binding ng-scope">In-House</option> 
  <option value="3" ng-repeat="option in produced_by.availableOptions" class="ng-binding ng-scope">Local Store/Printer</option>
</select>

If you are able to dynamically generate html based on your conditions, then proceed to do so...The code snippet provided is an example and may vary in Angular:

<select name="repeatSelect" id="repeatSelect" ng-model="model_produced_by" style="width: 62px;" ng-change="change_produced_by(model_produced_by, order.Order.id)">
     <option value="">Select Produced By</option>
     <option ng-repeat="option in produced_by.availableOptions" value="{{option.id}}" (option.id == order.Order.assigned_to) ? ng-selected="true":"">{{option.name}}</option>
</select>

I hope this provides a solution to your problem.

Answer 6

Although I am not familiar with angular js, I do understand your issue. If you can find a way to execute this operation, it should help resolve your problem. It is necessary to create the dropdown html below for the selected option 2:

<select ng-change="change_produced_by(model_produced_by, order.Order.id)" style="width: 62px;" ng-model="model_produced_by" id="repeatSelect" name="repeatSelect" class="ng-pristine ng-valid ng-empty ng-touched">
   <option value="">Select Produced By</option>
   <option value="1" ng-repeat="option in produced_by.availableOptions" class="ng-binding ng-scope">Outsourced</option>
   <option ng-selected="true" value="2" ng-repeat="option in produced_by.availableOptions" class="ng-binding ng-scope">In-House</option> 
  <option value="3" ng-repeat="option in produced_by.availableOptions" class="ng-binding ng-scope">Local Store/Printer</option>
</select>

If you are able to dynamically generate html based on your conditions, then proceed to do so...The code snippet provided is an example and may vary in Angular:

<select name="repeatSelect" id="repeatSelect" ng-model="model_produced_by" style="width: 62px;" ng-change="change_produced_by(model_produced_by, order.Order.id)">
     <option value="">Select Produced By</option>
     <option ng-repeat="option in produced_by.availableOptions" value="{{option.id}}" (option.id == order.Order.assigned_to) ? ng-selected="true":"">{{option.name}}</option>
</select>

I hope this provides a solution to your problem.

What is the best way to automatically select options in a dynamic dropdown menu

Answer №1

Answer №2

Answer №3

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