Code 4004 in C# silverlight application

Question

I'm currently having problem in my project. I'm having Code 4004 error in silverlight application. I don't know what I did wrong. Here are the image link.

http://s1100.photobucket.com/user/Fredi_Tansari/media/errorInsilverlight.png.html

here are the codes. After the the invalideoperation exception it goes to the unhandled exception error.

    private void getstatusCompleted(LoadOperation<PatientStatus1> obj)
    {
        try
        {
            PatientStatus1 bc = obj.Entities.First();
            if (bc != null)
            {
                MessageBox.Show("Patient has a status already, please use update instead new");
                return;
            }
            else
            {
                MessageBox.Show("inserting new Patient status");
            }
        }
        catch (InvalidOperationException e)
        {
            PatientStatus1 newPatientStatus = new PatientStatus1();
            newPatientStatus.ColorCodeID = "1";
            newPatientStatus.timestamp = DateTime.Now;
            newPatientStatus.UserID = "Jimmi";
            newPatientStatus.Patient_PatientID = Convert.ToInt32(patientIDTextBox.Text);
            newPatientStatus.MasterPatientStatus_masterPatientStatusId = Convert.ToInt32(masterPatientStatusIdTextBox.Text);
            newPatientStatus.MasterLocation_masterLocationID = Convert.ToInt32(masterLocationIDTextBox1.Text);
            patientstatusDomainContext.PatientStatus1s.Add(newPatientStatus);
            patientstatusDomainContext.SubmitChanges();

        }



    }

Thanks in advance for the help

Why are you putting object creation code in your catch-block? Can't you prevent invalidoperationexceptions from happening instead of catching it? And which code of line causes the next exception? — Terry, Commented Jun 12, 2013 at 9:01
Hi there Djerry, after the patientdomaincontext.submitchanges(); I'm seriously stumped right now. I just want to check if the data already exist in the database or not when I decided to use the try-catch, feel free to suggest better way to do it. — Fredi Tansari, Commented Jun 12, 2013 at 9:07
I guess you're using entity framework, so I won't suggest work methods as I'm not that familiar. What you can do now is put a try-catch around the line that generates the error (you can remove this try catch later when you've found what causes this). The errors SL throw are sometimes confusing, so see what the error tells you. — Terry, Commented Jun 12, 2013 at 9:12
i'll try to do that.. I'll post the result as soon as i'm done — Fredi Tansari, Commented Jun 12, 2013 at 9:17
@djerry, I tried to put the try catch, I think this has to do with the domain service operation issue.The entire operation is actually performed and then it goes to the exception. — Fredi Tansari, Commented Jun 12, 2013 at 9:27

ashishaapaliya · Accepted Answer · 2013-06-12 09:15:46Z

1

Try to set this key value to 1.

HKEY_CURRENT_USER\Software\Microsoft\Windows Script\Settings\JITDebug

answered Jun 12, 2013 at 9:15

ashishaapaliya

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