Angular nested form groups

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In this video we will discuss nested form groups in a reactive form. Along the way, we will also discuss working with radio buttons in a reactive form.

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The requirement is to dynamically create a group of form fields and also validate them as a single group so "Add a new skill" button can be enabled or disabled based on the validation state of the group. This can be very easily achieved using a nested form group. So, first let's create a nested form group for skill related fields in the component class.

Step 1: Creating a nested form group in the component class : Form groups can accept both form control and form group instances as children. This allows us to create a nested form group.

ngOnInit() {
fullName: new FormControl(),
email: new FormControl(),
// Create skills form group
skills: new FormGroup({
skillName: new FormControl(),
experienceInYears: new FormControl(),
proficiency: new FormControl()
})
});
}

Notice we have created a nested form group with key - skills. This nested form group contains 3 form controls.
skillName,
experienceInYears and
proficiency

Step 2: Grouping the nested form in the template : To group the form elements in the HTML, encapsulate the form elements in a div element and use the formGroupName directive on that container div element. Bind the formGroupName directive to the skills FormGroup instance in the component class. Bind each input element in the HTML, to the corresponding FormControl instance using the formControlName directive.

Please note : If you do not see the nested formgroup value displayed, make sure you have the following in the template after the closing form element.

In our upcoming sessions we will discuss, form validation and dynamically adding form controls.
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Authentication and authorization using angular 6. Hit like if you want kuduvenkat sir to teach this in the upcoming series.

kshameed
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Hello Kudvenkat, I think the way you manage to understand what you explain is excellent. Is there a video where you explain how to manipulate SQL data in a form?

euclidesgl
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incredibly easy to implement and understand. Thanks.

azure
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Hi Sir, When using Nested form group i am not able to get value of radio button or

meenapandi
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Hi kudvenkat, I love the way you teach and I’m planning to take SQL DBA, did u have tutorial class online in USA?

HT_Peace_be_with_you
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Hi Kudvenkat, actually formGroup contains the property(employeeForm) so we have taken with square braces at the same time formGroupName also contains property(that is skills) why we didn't use square braces here

swamideveloper
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Hi Sir, all the videos are very helpful regarding Reactive Form, I have something ask to you that if I want to generate everything like FormGroup and FormControl with validation by using dynamic JSON file how can we achieve that please make a video on it also.
Thanks in advance.

ramgupta
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sir, one of the important control is to upload the file through web form, kindly include this particular field in the form controls to add/modify and delete operation

sanjayrawat
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Hello
My requirement is that based on one dropdown value other dropdown should pop up and then depending upon second dropdown I need to display a table.
Please help me with approach fr this...

bhaktijadhav
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Thanks Sir, you are definitely among the top 3 lecturers on Youtube.
Can you please share the html table code that shows the form activities below the main form?
Thank you

Aamenvi
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I am finding difficulty to implement same in angular7....please help sir.

sekharroyal
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Hope next video will come as early as possible

shivaallu
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how to make key is dynamic like you are using "skill" but i want to make that key as dynamic is it possible.

engineersalwaysengineers
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Nice Video, Thank you for sharing #TapanDubey

TapanDubey