How to Create Angular Template Driven & Angular Reactive Forms In our previous blog, we discussed everything about the Angular forms and the types of Angular forms. There are two types of Angular forms Template Driven Forms and Reactive Forms. The Template Driven Forms allow you to create controls on the component templates and bind the data with ngModel. The Top PHP Development Companies say that the Template driven forms require only a little coding for validations. On the other hand, Reactive forms allow you to create controls on objects in the component class and bind them with the native templates. Reactive forms are easy to test and maintain. So, our today’s article will let you know “How to Create Angular Template Driven & Angular Reactive Forms”. You can follow the steps below to create your choice of Angular form. Let’s get started!
Template Driven Form If you wish to create a simple and effective form quickly, a Template driven form is a good choice for you to pick up. The first thing you need to create is a company registration form and How you will create the form is mentioned below.
Create the form tag as per your choice and make sure it is modified in two ways, one is to submit the form and the second way is to use the information of the form in the components. It will first declare the variables using the ngForm directive and then bind them with the ngSubmit component. The company form will transfer the filled information to the submit form component. After this, you also need a submit button
in order to submit the content of the form. Now, you will run a few bootstrap steps to create the submit button. But, you need to disable the button as you are ready for the data validation. You can disable it with the help of template variables. After this, you need to the input fields. To create an input field, you need to apply ngModel directive and it will automatically create a control object and associate it with the field. Give a name to the input fields or field, you have created. If the form already has the name, you don’t have to put extra efforts for the names as the same names will work. The ​Affordable PHP Development Services also provide support for such issues and help you focus on the other important factors. Reactive Forms You first have to add a Reactive form module and then import the required reactive forms classes. The required reactive forms classes are FormGroup, FormControl, and FormArray in the component class. With the help of these classes, you can construct a reactive form.
After that, you will have to use the form control class that will track its value and validity. This activity will be divided into three parts that are Initial data value, this will be an optional choice of your — An array of synchronous validators, an optional choice-An array of asynchronous validators. To complete the process you will have to use FormGroup Classes and that will help you to track the validation and value of a group of controls or form. It gives you the child control function that will ultimately make you the admin. You can even aggregate the values of child form control forms.
The templates will allow you to use the form group and will also help you to find out the hidden errors in some particular form controls. It gives you an option to disable the submit button. It can be easily disabled by the default and can be enabled whenever required. The last thing you need to do is using the form builder. The form builder is a crucial step you need to add to it. It helps you to simplify the syntax and use that in a more appropriate way. It also enhances the usability of your reactive form and makes it more attractive than template driven forms.
Source: https://medium.com/@shubhashishitservices/how-to-cr eate-angular-template-driven-angular-reactive-forms-71 85bf12e3aa