Prism MEF Export / Import Problem

I´m trying to inject an existing instance of a class into my view, but the view only receive a default instance of my class.

Here is my export in a view model class

 [Export("BLA", typeof(vmObject))]
    public vmObject VMObject
    {
        get
        {
            r开发者_运维百科eturn vmObject;
        }
        set
        {
            if (value != vmObject)
            {
                vmObject = value;
                this.RaisePropertyChanged<vmObject>(() => this.VMObject);
            }
        }
    }

On demand, my view model loads another view which should receive the exported class. I already have checked that class vmObject has been initialized as expected

tRegionManager.RequestNavigate("vInfoAuthorizationField", new Uri("/vInfoAuthorizationField", UriKind.Relative));

My import

[Import("BLA", AllowRecomposition = true, AllowDefault = false)]
    public vmObject VMObject { get; set; }

How can i fix this?

Update I could solve the problem by myself

I added the following line to the bootstrapper

 this.Container.ComposeExportedValue(this.Container);

After that, I could import the CompositionContainer into my view model and following method solved the import / export problem

this.container.ComposeExportedValue("BLA",this.VMObject);