jQuery Validate Plugin - Trigger validation of single field

Question

I ve got a form that can optionally be pre-populated via facebook connect   Once a user connects  their name and email are automatically filled in   The problem is that this doesn t trigger the remote validation to check if the email already exists    Is there a way I could call the validation on that field alone   Something like       email-field-only   validate    would be idea   Searched through the docs with no luck

User · Answer

This method seems to do what you want       email-field-only   valid

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When you set up your validation  you should be saving the validator object  you can use this to validate individual fields    lt script type  text javascript  gt  var  validator    function                validator       form   validate            function doSomething               validator element     someElement        lt  script gt     -- cross posted with this similar question

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If you want to validate individual form field  but don t want for UI to be triggered and display any validation errors  you may consider to use Validator check   method which returns if given field passes validation or not   Here is example  var validator       form   data  validator    if validator check   element           field is valid    else        field is not valid  but no errors will be displayed

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Use Validator element         Validates a single element  returns true if it is valid  false   otherwise    Here is the example shown in the API   var validator        myform    validate    validator element    myselect        valid   validates the entire form  as others have pointed out   The API says      Checks whether the selected form is valid or whether all selected   elements are valid

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For some reason  some of the other methods don t work until the field has been focused blured changed  or a submit has been attempted    this works for me       formid   data  validator   element   element   valid      Had to dig through the jquery validate script to find it

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FormId   validate   element   FieldId

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in case u wanna do the validation for  some elements   not all element  on your form You can use this method      input name  element-one    input name  element-two    input name  element-three     valid      Hope it help everybody     EDITED

User · Answer

element   validate   valid

[javascript] jQuery Validate Plugin - Trigger validation of single field

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