mdb-select-2 multiple=true error selectValue.forEach is not

Topic: mdb-select-2 multiple=true error selectValue.forEach is not a function

ASOKUMAR IT free asked 3 years ago

Expected behavior Using mdb-select-2 with multiple=true throws this error: Uncaught (in promise): TypeError: selectValue.forEach is not a function With multiple=true set the application is working fine.. the error is logged in the console. Works fine with multiple=false. Actual behavior

Resources (screenshots, code snippets etc.) selectValue.forEach is not a function error

Arkadiusz Idzikowski staff commented 3 years ago

When exactly does this error occur? Could you please edit your post and provide HTML/TS code you use to render the component and more information about reproduction steps?

ASOKUMAR IT free commented 3 years ago

ts file code:

optionsENERGIES_BATIMENT: Array; addUserForm: FormGroup;
constructor(private fb: FormBuilder) { }

ngOnInit(): void { this.addUserForm = this.fb.group({
ENERGIES_BATIMENT: [new FormControl('')],
}); }

html:

    <div class="md-form" style="width: 13rem;">
        <mdb-select-2 [multiple]="true" label="ENERGIES_BATIMENT" formControlName="ENERGIES_BATIMENT">
            <mdb-select-all-option>tout sélectionner</mdb-select-all-option>
            <mdb-select-option *ngFor="let option of optionsENERGIES_BATIMENT" [value]="option.value">{{
                option.label }}</mdb-select-option>
        </mdb-select-2>
    </div>
</form>

Please insert min. 15 characters.

Add comment

Arkadiusz Idzikowski staff answered 3 years ago

2 0 Best answer

The problem is in the formControl default value. You added an empty string but the component expects an array of values. In this case, if you don't want any default value, just leave the formControl empty or use null or empty array.

ASOKUMAR IT free commented 3 years ago

That fixed the error. Thanks a lot.

srxone premium commented 3 weeks ago

That fixing the error even 3 years later. Thanks from me too

Add comment

Write

Create snippet

FREE CONSULTATION

Hire our experts to build a dedicated project. We'll analyze your business requirements, for free.

Status

Answered

Specification of the issue

ForumUser: Free
Premium support: No
Technology: MDB Angular
MDB Version: MDB4 13.0.0
Device: Desktop
Browser: Firefox
OS: Windows 10
Provided sample code: No
Provided link: No

ASOKUMAR IT

30Support score
9Questions 2Answers 0Snippets