'Declaration
Protected Friend Overridable Function CreateOrSelectNewDocumentAsync() As NPromise(Of TDoc)
'Usage
Dim instance As NDocumentView(Of TDoc,TDocContent,TDocFormat,TDocFormatRegistry,TDocLoadSettings,TDocSaveSettings) Dim value As NPromise(Of TDoc) value = instance.CreateOrSelectNewDocumentAsync()
protected internal virtual NPromise<TDoc> CreateOrSelectNewDocumentAsync()