How to clear dialog/xmlfragment content after close?

Question

My dialog is defined as document:

  onOpenDialog : function () {
     var oView = this.getView();
     var oDialog = oView.byId(\"helloDialog\");
     // create         


        

Answer 1

I found that my error is caused by two reasons:

1. Forgot to set undefined after destory()

confirmCancel = function() {
   this._oAddAssignDialog.destroy();    
   this._oAddAssignDialog = undefined;
}

2. This dialog is used in table that is reused in different views, the tableview id should set to different.

//view 1

//view 2

So that oView.getId() won't generate the same id in different controller.