What could be causing NgModel to fail with mat-checkbox and radio buttons in Angular?

I am working with an array of booleans representing week days to determine which day is selected: 

selectedWeekDays: boolean[] = [true,true,true,true,true,true];

In my HTML file:

<section>
    <h4>Choose your days:</h4>
    <mat-checkbox [(ngModel)]="selectedWeekDays[0]">Saturday</mat-checkbox>
    <mat-checkbox [(ngModel)]="selectedWeekDays[1]">Sunday</mat-checkbox>
    <mat-checkbox [(ngModel)]="selectedWeekDays[2]">Monday</mat-checkbox>
    <mat-checkbox [(ngModel)]="selectedWeekDays[3]">Tuesday</mat-checkbox>
    <mat-checkbox [(ngModel)]="selectedWeekDays[4]">Wednesday</mat-checkbox>
    <mat-checkbox [(ngModel)]="selectedWeekDays[5]">Thursday</mat-checkbox>
  </section>

However, I am encountering the following errors for each mat-checkbox: Type 'Event' is not assignable to type 'boolean'. <mat-checkbox [(ngModel)]="selectedWeekDays[2]">Saturday ... and so on... and also this error: Can't bind to 'ngModel' since it isn't a known property of 'mat-checkbox'.

Unfortunately, I am facing similar issues with radio buttons. Why are these errors occurring and how can I resolve them? Thank you in advance.

javascriptangulartypescript

Answer №1

Ensure that you have included the FormsModule in your AppModule file.

An error occurs when attempting to bind 'ngModel' to 'mat-checkbox' because it is not recognized as a valid property. This issue can be resolved by including the FormModule.

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