Good news first!Recently I started to develop my first real AngularJS web app; it shouldn’t be nothing too much complicated I’m just planning to replace my old excel for family budget with a brand new AngularJS app.The registration view was one of the first views I made, when I started to work on this little project. This gave me the opportunity to learn a lot of things about AngularJS, and in particular how AngularJS handles client side form validation (one of the topic that I usually less appreciate).In this post I will show how to perform client side data validation with AngularJS. I will use both built-in directives, both custom directives. Client and Server side validationBefore to start, just a question for you: How many times have you heard that client side validation is useless without server side validation?Really a lot, I guess and that’s because client side validation could be easily bypassed.However it is still very important when used as an help for the user to complete with success the submission of a form.

1. Sharepoint 2013 Presaveaction Validation
2. Sharepoint Edit Form Custom Validation Angular Form
3. Angular Template Form Validation

Sharepoint 2013 Presaveaction Validation

Schneider bautabellen pdf 2017.

For data validation and sanitization, we should rely on server side validation (do you remember the ). AngularJS directives for form validationAngularJS has many directives to run form validation. The following are only those usable on a classic input field.

That’s because AngularJS prevents the default action (form submission to the server) unless the form element has an action attribute specified. I used the directive to specify a behaviour to apply when the form is submitted. Moreover, on the form is used the novalidate attribute, in order to disable browser’s native form validation.I used the directive that allow to show a portion of the DOM tree conditionally.

I also used the directive to conditionally disable the submit button. To write the condition I used several property of the form object that AngularJS makes available.

These properties are the following. Email true // When email1 field does not contain a real email. Customize form look with the CSS classes of AngularJSAngularJS makes available also numerous CSS classes to allow to customize the style of the form. This is good because different styles could be used to better communicate with the users. To better understand what I mean, take a look at the following example.See the by Bruno Scopelliti on.In the previous demo, I used only the most common classes. In the above example, a string in order to be valid has to be in the format “idnumbers”, otherwise the ngPattern directive will sets to true the pattern validation error key. See the.If you will play a lot with the previous demo, maybe you will note that also string like ” id123 “, “id123 “, or ” id123″ are valid.

This is due to the fact that ngModel automatically trims the value. To avoid this, the release 1.1.1 (still unstable) adds the new ngTrim directive.

100% Custom validation through custom directivesIf this is not enough, we could even extend this set of directives, writing our custom directives for form validation. I already wrote about; and write custom directives to validate a form is not much different.So now the question is: what other directive could be useful for form validation?I will write a directive to validate the username chosen by the user during the registration; username has to be an alphanumerical string of at least 4 chars, and at most 10 chars this could be already achieved through the ngPattern directive.

Sharepoint Edit Form Custom Validation Angular Form

Angular Template Form Validation

Moreover the username has to be unique on the database (or in a generic list of data). So my custom ngUnique directive will call asynchronously the server to check if the username chosen is already used, or not.Here you could play with the codepen demo:See the by Bruno Scopelliti on.Let’s break this directive.