How to create the detached from central while keeping the central document open

[Anonymous]

Hello there, I've created an app, that creates and save a detached from central document. But it do not allow me to keep the central document open while creating the detached document. Here's my sample code:

        public void CreateSaveDetachedFile(Application application, string revitFilePath)
        {

            string detachedfolderpath = @"C:\Users\Ali asad\Desktop\Local Alexa Copy"; 
            string detachedfilename = "";

            //Get information of current opened revit file
            FileInfo filePath = new FileInfo(revitFilePath);
            ModelPath revitCentralFile = ModelPathUtils.ConvertUserVisiblePathToModelPath(filePath.FullName);

            OpenOptions openOptions = new OpenOptions();
            openOptions.DetachFromCentralOption = DetachFromCentralOption.DetachAndDiscardWorksets;
            detachedfilename = filePath.Name;

            Document openedDoc = application.OpenDocumentFile(revitCentralFile , openOptions);
           
            SaveAsOptions options = new SaveAsOptions();
            options.OverwriteExistingFile = true;

            ModelPath modelPathout = ModelPathUtils.ConvertUserVisiblePathToModelPath(detachedfolderpath + "\\" + detachedfilename);

            //Save detached document
            openedDoc.SaveAs(modelPathout, options);

            openedDoc.Close(false);

        }

I would appreciate if someone explain, how do I keep the central document open while I create the detached from central document. Thank you.

[Mustafa.Salaheldin]

What is exactly the error message you got? Can you share a screen shot?

[Dale.Bartlett]

I didn't look too closely, but the SaveAs process will make the current file into the new file. I would not expect the source Central File to also be open. Dale 

[Mustafa.Salaheldin]

Nice. Please if this topic is answered mark the reply as answer.