The ng-options loop in the array is unable to locate the specified value

Question

The ng-options loop in the array is unable to locate the specified value

In my C# controller, I generate a list and translate it to Json for Angular to receive at the front end. However, when using ng-options to loop through this array in order to get the array value, I always end up with the index instead.

<select class="selectpicker" data-show-subtext="true" data-live-search="true" ng-model="groupArray" ng-options="k for (k,v) in groupArray">

enter image description here

javascript c#angularjs

Answer 1

Answer №1

Greetings! Allow me to provide a straightforward example for you:

In the controller

$scope.JSONdata = [{ 'name' : 'Name 1', 'sname' : 'Sname 1' }, { 'name': 'Name 2', 'sname': 'Sname 2' }, { 'name': 'Name 3', 'sname': 'Sname 3' }]

On the front end

<select ng-model='selectedName'
                ng-options='item as item.name for item in JSONdata'>            
</select>

//Retrieves the whole object. From here you can access both name and 
//sname of the selected item.
SelectedObject : {{selectedName}}

Here's how the ng-options function works :

Retrieve the entire item
Display only item.name in the options (select)
Loop through each item in the JSONdata scope variable

Answer 2

Greetings! Allow me to provide a straightforward example for you:

In the controller

$scope.JSONdata = [{ 'name' : 'Name 1', 'sname' : 'Sname 1' }, { 'name': 'Name 2', 'sname': 'Sname 2' }, { 'name': 'Name 3', 'sname': 'Sname 3' }]

On the front end

<select ng-model='selectedName'
                ng-options='item as item.name for item in JSONdata'>            
</select>

//Retrieves the whole object. From here you can access both name and 
//sname of the selected item.
SelectedObject : {{selectedName}}

Here's how the ng-options function works :

Retrieve the entire item
Display only item.name in the options (select)
Loop through each item in the JSONdata scope variable

Answer 3

Answer №2

Did you give this a shot within your ng-options?

v for (k,v) in groupArray

(I haven't had the chance to test it out yet, but it might be worth giving it a try)

Answer 4

Did you give this a shot within your ng-options?

v for (k,v) in groupArray

(I haven't had the chance to test it out yet, but it might be worth giving it a try)

Answer 5

Answer №3

If you have a specific object structure, you can easily access it using the following code:

v for (k,v) in groupArray

The variable k represents the key and will return the index. If you need to access the property value of a particular object, you can use something like this:

v.propertyname for (k,v) in object

Here, propertyname refers to a property within your object structure.

For more detailed information, please consult the ngOptions documentation here

Answer 6

If you have a specific object structure, you can easily access it using the following code:

v for (k,v) in groupArray

The variable k represents the key and will return the index. If you need to access the property value of a particular object, you can use something like this:

v.propertyname for (k,v) in object

Here, propertyname refers to a property within your object structure.

For more detailed information, please consult the ngOptions documentation here

The ng-options loop in the array is unable to locate the specified value

Answer №1

Answer №2

Answer №3

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