Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

tabs: nested mat-tab with matTabContent directive does not work

See original GitHub issue

Bug, feature request, or proposal:

Bug

What is the expected behavior?

Nested mat-tab with <ng-template matTabContent> to work

What is the current behavior?

Nested mat-tab with <ng-template matTabContent> do not work

What are the steps to reproduce?

https://stackblitz.com/edit/angular-material2-issue-aqmcu4?file=app/app.component.html

Use <ng-template matTabContent> in both the outer and the inner mat-tab and the issue will occur

<mat-tab-group>

  <mat-tab label="tab1">
    <ng-template matTabContent>
      
      <mat-tab-group>
        <mat-tab label="child tab1">
          <ng-template matTabContent>
            <p>Test Test Test Test Test Test Test Test Test Test Test Test</p>
          </ng-template>
        </mat-tab>

        <mat-tab label="child tab2">
          <ng-template matTabContent>
            <p>Test Test Test Test Test Test Test Test Test Test Test Test</p>
          </ng-template>
        </mat-tab>
      </mat-tab-group>

    </ng-template>
  </mat-tab>

  <mat-tab label="tab2">
    <ng-template matTabContent>
      <p>Test Test Test Test Test Test Test Test Test Test Test Test</p>
    </ng-template>
  </mat-tab>

  <mat-tab label="tab3">
    <ng-template matTabContent>
      <p>Test Test Test Test Test Test Test Test Test Test Test Test</p>
    </ng-template>
  </mat-tab>

</mat-tab-group>

What is the use-case or motivation for changing an existing behavior?

Which versions of Angular, Material, OS, TypeScript, browsers are affected?

Angular: 6.0.0 Material 6.3.0

Is there anything else we should know?

If <ng-template matTabContent> is removed from the inner mat-tab, it works

Issue Analytics

State:
Created 5 years ago
Reactions:2
Comments:10 (2 by maintainers)

Top GitHub Comments

2reactions

EBMikecommented, Mar 6, 2019

@robertmazzo nesting a mat-tab-group inside a mat-tab still breaks it… using your example, but updating the dynamic tabs with this will break

<mat-tab label="Dynamic Preferences">
	<ng-template matTabContent>
		<mat-tab-group>
			<mat-tab label="foo">
			        <ng-template matTabContent> // <-- this breaks it
			            bar
			        </ng-template>
			</mat-tab>
		</mat-tab-group>
	</ng-template>
</mat-tab>

2reactions

robertmazzocommented, Oct 1, 2018

I just tried adding nested mat-tab directives unsuccessfully. Any news on this ? thanks.