Angularjs prevent form submission when input validation fails

Question

I m writing a simple login form using angularjs with some client side input validation to check that the user name and password is not empty and longer than three characters  See the below code    lt form name  loginform  novalidate ng-submit  login submit    class  css-form  gt       lt fieldset gt            lt div class  control-group input-prepend  gt               lt span class  add-on  gt  lt i class  icon-user  gt  lt  i gt  lt  span gt               lt input type  text  ng-model  login username  name  username  required ng-minlength  3  placeholder  username    gt           lt  div gt            lt div class  control-group input-prepend  gt               lt span class  add-on  gt  lt i class  icon-lock  gt  lt  i gt  lt  span gt               lt input type  password  ng-model  login password  name  password  required ng-minlength  3  placeholder      gt           lt  div gt            lt div class  control-group  gt               lt input class  btn  type  submit  value  Log in  gt           lt  div gt        lt  fieldset gt   lt  form gt    And the controller   var controller   function  scope          scope login             submit  function                  Console info  scope login username          scope login password                         The problem is that the login submit function will be called even if the input is not valid  Is it possible to prevent this behaviour   As a side note I can mention that I use bootstrap and requirejs as well

User · Accepted Answer

You can do    lt form name  loginform  novalidate ng-submit  loginform  valid  amp  amp  login submit    gt    No need for controller checks

User · Answer

I know this is an old thread but I thought I d also make a contribution  My solution being similar to the post already marked as an answer  Some inline JavaScript checks does the trick   ng-click  form  invalid   alert  Please correct the form     saveTask task

User · Answer

Your forms are automatically put into  scope as an object   It can be accessed via  scope formName   Below is an example that will work with your original setup and without having to pass the form itself as a parameter in ng-submit   var controller   function  scope          scope login             submit  function                 if  scope loginform  invalid  return false                         Working example  http   plnkr co edit BEWnrP p preview

User · Answer

So the suggested answer from TheHippo did not work for me  instead I ended up sending the form as a parameter to the function like so    lt form name  loginform  novalidate ng-submit  login submit loginForm   class  css-form  gt    This makes the form available in the controller method    scope login         submit   function form            if form  valid

User · Answer

HTML    lt div class  control-group  gt       lt input class  btn  type  submit  value  Log in  ng-click  login onSubmit  event   gt   lt  div gt    In your controller    scope login         onSubmit  function event            if  dataIsntValid                displayErrors                event preventDefault                      else               submitData

User · Answer

I know it s late and was answered  but I d like to share the neat stuff I made  I created an ng-validate directive that hooks the onsubmit of the form  then it issues prevent-default if the  eval is false   app directive  ngValidate   function       return function scope  element  attrs        if   element is  form            throw new Error  ng-validate must be set on a form elment          element bind  submit   function event            if   scope  eval attrs ngValidate     event   event                event preventDefault            if   scope   phase              scope  digest                                   In your html    lt form name  offering  method  post  action  offer  ng-validate   lt boolean expression  gt

User · Answer

Although not a direct solution for the OPs question  if your form is within an ng-app context  but you want Angular to ignore it altogether  you can do this explicitly using the ngNonBindable directive    lt form ng-non-bindable gt         lt  form gt

User · Answer

Change the submit button to    lt button type  submit  ng-disabled  loginform  invalid  gt Login lt  button gt

User · Answer

Just to add to the answers above   I was having a 2 regular buttons as shown below   No type  submit anywhere    lt button ng-click  clearAll     class  btn btn-default  gt Clear Form lt  button gt   lt button ng-disabled  form  invalid  ng-click  submit    class  btn btn-primary pull-right  gt Submit lt  button gt    No matter how much i tried  pressing enter once the form was valid  the  Clear Form  button was called  clearing the entire form   As a workaround   I had to add a dummy submit button which was disabled and hidden  And This dummy button had to be on top of all the other buttons as shown below    lt button type  submit  ng-hide  true  ng-disabled  true  gt Dummy lt  button gt    lt button ng-click  clearAll     class  btn btn-default  gt Clear Form lt  button gt    lt button ng-disabled  form  invalid  ng-click  submit    class  btn btn-primary pull-right  gt Submit lt  button gt    Well  my intention was never to submit on Enter  so the above given hack just works fine

[angularjs] Angularjs prevent form submission when input validation fails

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