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How would you get a list of all the possible choices from a choice field (e.g. Task list Priority or Status fields) using javascript client object model?

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up vote 15 down vote accepted

You can get this from SP.FieldChoice.get_choices() (SPFieldChoice inherits SPFieldMultiChoice)

To get that object you need to use context.castTo to cast SP.Field to SP.FieldChoice.

// Setup context and load current web
var context = new SP.ClientContext.get_current();
var web = context.get_web();
context.load();

// Get task list
var taskList = web.get_lists().getByTitle("Tasks");

// Get Priority field (choice field)
var priorityField = context.castTo(taskList.get_fields().getByInternalNameOrTitle("Priority"),
                                   SP.FieldChoice);

// Load the field
context.load(priorityField);

// Call server
context.executeQueryAsync(Function.createDelegate(this, this.onSuccessMethod),
                          Function.createDelegate(this, this.onFailureMethod));  

function onSuccessMethod(sender, args) {
    // Get string arry of possible choices (but NOT fill-in choices)
    var choices = priorityField.get_choices();
    alert("Choices: (" + choices.length + ") - " + choices.join(", "));
}

function onFailureMethod(sender, args) {
    alert("oh oh!");
}
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2  
I didn't even know about context.castTo, this is brilliant. Thanks! – eirikb Oct 5 '12 at 14:15
3  
The above code needs to have a context.load(priorityField); before the executeQueryAsync! Otherwise you will get a property error when doing the get_choices() – user16654 Apr 26 '13 at 16:41
    
You're right user16654, the code need to be used context.load(priorityField); before executeQueryAsync – tbbt Dec 18 '14 at 3:46

On SharePoint 2013, we can use the REST API. An example would be with a GET request similar to this:

/_api/web/lists/getbytitle('task')/Fields?$filter=Title eq 'Fieldname'

The request returns the field metadata. For more detail, view this link:

http://www.ozkary.com/2015/10/sharepoint-choice-field-options-with-angularjs.html?m=1

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I can't get this to work with an App Web. Says permission denied with Admin creds – Colbs Jul 6 at 17:24
1  
Keep in mind that calls to the SP API need to run under the security context of the user. You should login to SP. Open another tab (same browser) and enter the url with the apo call to test the access. The tabs should maintain the same security context. Double check that an Authorization header is send to the server with an auth token (dev tools) – ozkary Jul 7 at 1:54

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