Stop users from switching to other tabs within mat-tab-group without using ViewChild

I am working with a mat-tab-group component in Angular :

mat-tab-group
    class="brand-tabs"
    [disableRipple]="true"
    *ngSwitchCase="types.project"
    (selectedTabChange)="changeProjectTab($event)"
    [selectedIndex]="selectedProjectIndex"
>
.........

This is the function in my component's TypeScript file :

changeProjectTab(event) {
    if (event.index > 0) {
        this.selectedProjectIndex = 0;
        this.modalService.contentModal(
            this.upgradeRef,
            this.translateService.instant('message')
        );
    }
}

I have 3 tabs in the mat-tab-group and I want to prevent navigation to tabs with index 1 and 2, always remaining on tab with index 0. The current solution I tried is not working. Any ideas on how to achieve this? Thank you.

Answer №1

Make sure to activate two-way binding for selectedIndex:

<mat-tab-group
    ...
    (selectedTabChange)="updateSelectedTab($event)"
    [(selectedIndex)]="selectedProjectIndex"
>

For a live example, check out this Stackblitz link: https://stackblitz.com/edit/angular-lkhtgt.

Answer №3

Have you experimented with including [disabled]='true' in the mat-tab that you wish to deactivate? You could also consider incorporating a conditional statement like [disabled]='isFirstTab' to control its behavior.

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