Ionic v3 menu and navigation

Ionic Framework ionic-v3
1

Hi i have ionic v3 app with masterpage which contains the navigation: master.html:

<ion-menu [content]="mycontent" id="mainMenu" persistent="true">
	<ion-header>
		<ion-toolbar color="profitDark">
			NAME
		</ion-toolbar>
	</ion-header>

	<ion-content class="list">
		<ion-list>
			 <button ion-item menuClose (click)="openPage(companiesPage)" detail-none no-lines [ngClass]="amIShown(companiesPage)">
				{{ 'MENU.COMPANIES' | translate }}
			</button>
			<button ion-item menuClose (click)="openPage(dashboardPage)" detail-none no-lines [ngClass]="amIShown(dashboardPage)">
				DASHBOARD
			</button>
			<button ion-item menuClose (click)="openPage(partnersPage)" detail-none no-lines [ngClass]="amIShown(partnersPage)">
				{{ 'MENU.PARTNERS' | translate }}
      		</button>
		</ion-list>
	</ion-content>
</ion-menu>

<ion-nav #mycontent [root]="rootPage" name="masterNav"></ion-nav>

and in master.ts

  openPage(p) {
    this.rootPage = p;
  }

Everything works fine, the side menu buttons are working. But there is one problem. I want to change the page from the companies page to the dashboard page

I have tried setRott(DashboardPage), the page has changed, but in the side menu it stays on the companiesPage…

That means, after selecting companie on CompaniesPage it goes to DashboardPage (loads data), and if i want to go back to companies page it stays on the DashboardPage…

It looks like, the rootPage in masterpage stays CompaniesPage

Is there any solution to acces the function in masterpage from the CompaniesPage?

Thank you

2