Setting multiple values on a form can be accomplished by using the appropriate form fields

When it comes to setting values on fields, I am aware that I can choose between using

setValue

or

patchValue

However, I am currently encountering a situation where I need to avoid setting the value on each field individually.

Take a look at my form code below:

registrationForm = this._fb.group({
 firstName: ['', Validators.required],
 lastName: [''],
 age: [''],
 country: ['', Validators.required],
 hobby: [''],
 sport: [''],
 status: [''],
 country: ['', Validators.required],
 ...
 ...
});

I have an object named person containing all these properties. To set the values, I am currently doing the following (which works), but I am seeking for a BETTER approach:

registrationForm = this._fb.group({
 firstName: [this.person.firstName, Validators.required],
 lastName: [this.person.lastName],
 age: [this.person.age],
 country: [this.person.country, Validators.required],
 hobby: [this.person.hobby],
 sport: [this.person.sport],
 status: [this.person.status],
 country: [this.person.country, Validators.required],
 ...
 ...
});

Another idea I am considering is creating an object from the person object so that I can utilize either setValue or patchValue methods. Here's a rough concept:

 Object
 .keys(dataObject)
 .map((key) => {
 return { firstName: firstName, lastName: lastName, age: age ...}
 });

If anyone could provide guidance in the right direction, I would greatly appreciate it! Thank you in advance!

Answer №1

If you're confident that the individual object aligns with your form's properties, you can easily update the entire form using setValue by passing in the individual:

this.myFormGroup.setValue(this.individual);

DEMO


UPDATE: In case your individual object has additional properties not present in your form, you can utilize patchValue() instead. This method only updates the matching properties with the form:

this.myFormGroup.patchValue(this.individual);

DEMO

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