将 hasPendingChanges() 绑定到视图模型

Question

I want to use the hasPendingChanges() method from v2 ODataModel in my view. Therefore I want to set a property named detailView>/pendingChnages in my view-model. Is there a event in v2 ODataModel or in binding (element / context-binding) for every change to check the hasPendingChanges-method in v2 ODataModel?

Thanks in advance!

Answer 1

I Just found a solution for my requirement. I could remember a video I've watched recently: https://youtu.be/-bs-RBG7f5Q?t=2116

For the solution I register a change-Event for a sap.ui.model.Binding .

var oCtx = this.getView().getBindingContext();
var oBinding = new sap.ui.model.Binding(this.getView().getModel(), oCtx.getPath(), oCtx);
oBinding.attachChange(function(){
    this.getView().getModel("detailView").setProperty("/pendingChanges", this.getModel().hasPendingChanges());
}.bind(this));