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ng-messages validation using a button

I am trying to figure out how to use ng-message based off of a button click. Most of the documentation I have found automatically shows the error message based off an input not the button. What would I change so the ng-messages show after the button in clicked. Here is my code
<div ng-controller="userController">
<div class=user>
<form name="login">
<h2 class>Login</h2>
<h3 class = "login_page">UserName</h3>
<input ng-model="user" type="text" ng-minlength="1" required>
<h3 class = "login_page">Password</h3>
<input ng-model="password" type="password" name="password" ng-minlength="4" required>
<input type="submit" value="Login" ng-click="login()" >
<div ng-messages="login.password.$error" style="color:maroon" role="alert">
<div ng-message="required">You did not enter a field</div>
<div ng-message="minlength">Your field is too short</div>
</div>
</form>
</div>
</div>

You can use $submitted flag on the form controller with ngIf:
<div ng-if="login.$submitted" ng-messages="login.password.$error" style="color:maroon" role="alert">
<div ng-message="required">You did not enter a field</div>
<div ng-message="minlength">Your field is too short</div>
</div>

You can use ng-show directive of angular with $submitted property of ng-form
Add this to your code ng-show="login.$submitted"
<input type="submit" value="Login" ng-click="login()" >
<div ng-show="login.$submitted" ng-messages="login.password.$error" style="color:maroon" role="alert">
<div ng-message="required">You did not enter a field</div>
<div ng-message="minlength">Your field is too short</div>
</div>
You can see a working fiddle here . Hope this will help
Or Alternatively add show to each message like this
<div ng-messages="login.password.$error" style="color:maroon" role="alert">
<div ng-show="login.$submitted" ng-message="required">You did not enter a field</div>
<div ng-show="login.$submitted" ng-message="minlength">Your field is too short</div>
</div>

AngularJS ngDisabled not working inside a form

I have a simple form that registers the informations in a MailChimp's list. I want to disable the Submit button if the input fields weren't filled yet.
<div class="demo" data-ng-if="demo && !register">
<form action="MAILCHIMP_ADDRESS" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate demoform" data-ng-init="demoUser = {}" target="_blank" autocomplete="off" novalidate>
<div class="control-group">
<div class="form-group">
<input type="email" name="EMAIL" data-ng-model="demoUser.email" class="form-control" placeholder="Insira seu e-mail profissional">
</div>
</div>
<div class="control-group">
<div class="form-group">
<input type="text" name="EMPRESA" data-ng-model="demoUser.empresa" class="form-control" placeholder="Insira sua empresa">
</div>
</div>
<div style="position: absolute; left: -5000px;" aria-hidden="true"><input type="text" name="b_0a5d36c63e174c949789feea5_200f88e472" tabindex="-1" value=""></div>
<div class="clear pull-right">
<button type="submit" class="btn btn-outline-light" data-ng-disabled="mc-embedded-subscribe-form.$invalid" data-ng-click="demoLogin(demoUser)">Enviar</button>
</div>
</form>
</div>
What am I doing wrong here?

This is because you are using a hyphen in the name of your form.
Its a known issue explained here also stated here.
So you will have to change your form name to myFormor something without a hyphen.
data-ng-disabled="myForm.$invalid"
check this plunker the one form with the hyphen is not working, the other does

Clear form on `mfp-close` in magnific popup

I am trying to clear all the errors and make input values blank on closing of magnific popup.
I inspected the class of 'close' button and tried to fire jquery event but it is not working.
$("button.mfp-close").on('click',function(){
console.log("Closed");
});
When i click on mfp-close then there is no log in console.
HTML snippet is:
<div class="mfp-content"><div id="customdesign" class="white-popup mfp-with-anim">
<div class="row">
<div class="col-sm-12 text-center">
<h3>Upload Your Design</h3>
<p><span class="success_sbmt" style="display:none;color:green">Congratulations! We have sent you the coupon code on your registered email id</span>
</p><form novalidate="novalidate" class="form cmxform" id="customForm">
<input name="leave" value="http://" type="hidden">
<input name="isblank" value="" type="hidden">
<div class="form-group">
<label class="sr-only">Name</label>
<input aria-required="true" class="form-control" name="nam_cst" id="nam_cst"
placeholder="Enter Name.." required="" type="text">
<span class="help-block" style="color:red"></span>
</div>
</form>
</div>
</div>
<button title="Close (Esc)" type="button" class="mfp- close">×</button>
</div></div>
How can we handle this operation??

First of all, if you are using bootstrap framework, use bootstrap modal instead magnific popup, no need for extra js librabry, you can achieve same with bootstrap modal
in your HTML, button you have class="mfp- close" it should be class="mfp-close" as you are binding it like this $("button.mfp-close")
To reset form on pop-up close, you can achieve it with $('form')[0].reset();
Script
$("button.mfp-close").on('click',function(){
alert("Closed");
$('form')[0].reset();
});
HTML
<a class="popup-modal" href="#customdesign">Open modal</a>
<div class="mfp-content">
<div id="customdesign" class="white-popup-block mfp-hide">
<div class="row">
<div class="col-sm-12 text-center">
<h3>Upload Your Design</h3>
<p>
<span class="success_sbmt" style="display:none;color:green">Congratulations! We have sent you the coupon code on your registered email id</span>
</p>
<form novalidate="novalidate" class="form cmxform" id="customForm">
<input name="leave" value="http://" type="hidden">
<input name="isblank" value="" type="hidden">
<div class="form-group">
<label class="sr-only">Name</label>
<input aria-required="true" class="form-control" name="nam_cst" id="nam_cst" placeholder="Enter Name.." required="" type="text">
<span class="help-block" style="color:red"></span>
</div>
</form>
</div>
</div>
<button title="Close (Esc)" type="button" class="mfp-close">×</button>
</div>
</div>
Working fiddle example

Send form data in a querystring to url with AngularJS

I am trying to create a simple for that then passes the data into a querystring.
ie capturing:
first name
last name
email
Which when submitted with give soemthing like:
http://www.url.com?FirstName=John&LastName=Smith&johnsmith#url.com
I thought I would try 2 way binding and add the querystrings via the action but obviously this gave me an error. I don't need to save this data trust transfer it from a small form to the main application.
I also tried doing this all on submit which works however the link is still clickable when the form is blank. Any suggestions would be very welcome.
<form class="form" name="appForm" novalidate action="https://www.url.com?FirstName={{firstname}}" method="Post">
<div class="row">
<div class="col-md-12">
<div class="row">
<div class="col-md-11 flowuplabels">
<div class="form-group has-feedback" show-errors="{ showSuccess: true }">
<div class="fl_wrap">
<label for="appfirstname" class="fieldLabel fl_label">
First name<span class="text-danger">*</span>
</label>
<input type="text" name="appfirstname" id="appfirstname" class="form-control fl_input" data-ng-model="firstname" ng-required />
<span class="form-bar"></span>
</div>
</div>
<div class="form-group has-feedback" show-errors="{ showSuccess: true }">
<div class="fl_wrap">
<label for="applastname" class="fieldLabel fl_label">
Last name<span class="text-danger">*</span>
</label>
<input type="text" name="applastname" id="applastname" class="form-control fl_input" data-ng-model="lastname" ng-required />
<span class="form-bar"></span>
</div>
</div>
<div class="form-group has-feedback" show-errors="{ showSuccess: true }">
<div class="fl_wrap">
<label for="appemail" class="fieldLabel fl_label">
Email<span class="text-danger">*</span>
</label>
<input type="email" name="appemail" id="appemail" class="form-control fl_input" data-ng-model="email" ng-required />
<span class="form-bar"></span>
<p ng-show="appForm.appemail.$invalid && !appForm.appemail.$pristine" class="help-block">Enter a valid email.</p>
</div>
</div>
<div class="form-group">
<button id="btnSend" class="btn btn-red" ng-disabled="!firstname || !lastname || !email">Join us</button>
</div>
</div>
</div>
</div>
</div>
</form>

Typical as soon as I ask I solve
should have used get and just put the url ie:
It will then ass the query string using the input name as the query name so much simpler that what I was trying to do

AngularJS Expression Won't Evaluate in Value Field of Input

What seems like a simple thing in AngularJS is not working for me and I was hoping you all could be of assistance. Specifically, I am trying to enter the result of an AngularJS expression in another input's "value" attribute. I have set the ng-model's and am calling those correctly, just can't figure out why it won't evaluate. I have tried doing the same expression below the input, and it evaluates, so I believe it's something to do with being in the value attribute which is causing the issue.The code I have currently is:
<div class="row-fluid">
<div class="span4">
<label for="employeeID">Employee ID</label>
<input type="text" class="input-block-level" id="employeeID" for="employeeID" placeholder="ANS1235482" ng-model="createNewUser.EmployeeId">
</div>
<div class="span4">
<label>First Name</label>
<input type="text" class="input-block-level" placeholder="Johnathan" ng-model="createNewUser.FirstName">
</div>
<div class="span4">
<label>Last Name</label>
<input type="text" class="input-block-level" placeholder="Smith" ng-model="createNewUser.LastName">
</div>
</div>
<div class="row-fluid">
<div class="span4">
<label for="username">Username</label>
<input type="text" class="input-block-level" placeholder="JohnathanSmith" value="createNewUser.LastName" >
</div>
<div class="span4">
<label>Password</label>
<input type="password" class="input-block-level" placeholder="***************">
</div>
<div class="span4">
<label>Role</label>
<select class="input-block-level">
<option value="user">User</option>
<option value="admin">Administrator</option>
</select>
</div>
</div>
Ideally, I would like to figure out how to get a username of the first letter of the first name and the full last name to auto-populate using data-binding, but at this point I haven't even been able to get just the standard first name + last name to work.
Any help you could offer would be greatly appreciated.
Thank you!

<input type="text" class="input-block-level" placeholder="JohnathanSmith" ng-value="un" >
Use ng-change directive.
var app = angular.module("app", []);
app.controller("myCtrl", ["$scope", function ($scope){
$scope.fn = "";
$scope.ln = "";
$scope.changed = function () {
$scope.un = $scope.fn[0] + $scope.ln;
};
}]);
DEMO

please use ng-value instead value
here demo: http://jsbin.com/zamih/1/edit
<body ng-app="app">
<div ng-controller="firstCtrl">
<div class="row-fluid">
<div class="span4">
<label for="employeeID">Employee ID</label>
<input type="text" class="input-block-level" id="employeeID" for="employeeID" placeholder="ANS1235482" ng-model="createNewUser.EmployeeId">
</div>
<div class="span4">
<label>First Name</label>
<input type="text" class="input-block-level" placeholder="Johnathan" ng-model="createNewUser.FirstName">
</div>
<div class="span4">
<label>Last Name</label>
<input type="text" class="input-block-level" placeholder="Smith" ng-model="createNewUser.LastName">
</div>
</div>
<div class="row-fluid">
<div class="span4">
<label for="username">Username</label>
<input type="text" class="input-block-level" placeholder="JohnathanSmith" ng-value="createNewUser.LastName" >
</div>
<div class="span4">
<label>Password</label>
<input type="password" class="input-block-level" placeholder="***************">
</div>
<div class="span4">
<label>Role</label>
<select class="input-block-level">
<option value="user">User</option>
<option value="admin">Administrator</option>
</select>
</div>
</div>
</div>
</body>

Change this line:
<div class="span4">
<label for="username">Username</label>
<input type="text" class="input-block-level"
placeholder="JohnathanSmith" value="createNewUser.LastName" >
</div>
To this instead:
<div class="span4">
<label for="username">Username</label>
<input type="text" class="input-block-level"
placeholder="JohnathanSmith" value="{{createNewUser.LastName}}" >
</div>
Your issue is that you are not evaluating createNewUser.LastName as an angular binding, but instead just assigning the text "createNewUser.LastName" to the value attribute. To fix this, put the createNewUser.LastName variable in double curly braces {{...}}.
Hope this helps!

If you have tried any/all of these above mentioned methods and still not able to fix your problem, it could be that your updated files are not loaded to Chrome.
That's what happened to me.
There are two ways to make sure that your js files are up to date on the browser,
1) Hold shift while clicking the reload button of your browser
2) Hard reload your page
* Open Developer Tools by either pressing F12 or ... -> More Tools -> Developer Tools
* Right-click the reload button of your browser and click "Empty Cache and Hard Reload"