Override back button on FLP

[Violina]

Hello,

I'm trying to override the back button behavior on Sap Build Workzone. My application is Fiori Elements with Fiori Freestyle with odata v4. I want to raise an exception when a user is in the Object Page in edit mode and clicks on the back button. I tried the suggestions here https://community.sap.com/t5/technology-q-a/flp-nav-back-button-issue/qaq-p/12142325/comment-id/4538.... But didn't work for me. I tried using this part:

this.getOwnerComponent().getService("ShellUIService").then(function(oShellService) {
    oShellService.setBackNavigation(function() {
        //either do nothing to disable it, or add your own nav back logic for having the navigation
    });
});

In the onAterRendering method of the Object Page controller, but it doesn't enter the setBackNavigation function. Can someone help with this issue.

Thanks,

Violina

[Sankara1]

Hello Violina, Thanks for reaching out to us, I believe that sap.ushell.Container is designed to implement dirty state flags specifically for this purpose. You can either attach a dirtyStateProvider https://sapui5.hana.ondemand.com/sdk/#/api/sap.ushell.Container%23methods/registerDirtyStateProvider (asynchronous) or directly set the dirtyState flag to true ( https://sapui5.hana.ondemand.com/sdk/#/api/sap.ushell.Container%23methods/setDirtyFlag) whenever the user modifies or enters data. I hope this information is helpful. Please Let us know if you have further clarification