template form validation in angular 17 angular 17 tutorial
Download 1M+ code from https://codegive.com/14c0161
sure! in angular, forms can be handled in two ways: reactive forms and template-driven forms. template-driven forms are simpler and are ideal for simpler forms where you don't need a lot of control over the form state.
in this tutorial, we will go over how to implement template-driven form validation in angular 17. we will cover the following:
1. setting up a new angular project.
2. creating a simple form.
3. adding validation.
4. displaying error messages.
step 1: setting up a new angular project
if you haven't already set up your angular project, you can create a new one using the angular cli. open your terminal and run the following commands:
```bash
npm install -g @angular/cli
ng new angular-template-driven-validation
cd angular-template-driven-validation
ng serve
```
this will create a new angular project and serve it on `http://localhost:4200`.
step 2: creating a simple form
in your angular project, you will create a simple form. open the `app.component.html` file and replace its content with the following code:
```html
div class="container"
h2template driven form validation/h2
form myform="ngform" (ngsubmit)="onsubmit(myform)"
div class="form-group"
label for="name"name:/label
input type="text" id="name" name="name" ngmodel required minlength="3" name="ngmodel"
div *ngif="name.invalid && (name.dirty || name.touched)" class="alert alert-danger"
div *ngif="name.errors?.required"name is required./div
div *ngif="name.errors?.minlength"name must be at least 3 characters long./div
/div
/div
div class="form-group"
label for="email"email:/label
input type="email" id="email" name="email" ngmodel required email email="ngmodel"
div *ngif="email.invalid && (email.dirty || email.touched)" class="alert alert-danger"
div *ngif="email.errors?.required"email is required./div
div *ngif="email.errors?.email"email must be valid./div ...
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