ViewModel interaction

Question

Hi All I am doing a SilverLight application using MVVM. In that I have 2 csproj - Diagnosis and PatientDetails. In Diagnosis  i ve Medication.xaml which is a childwindow. The ViewModel name which Medication.xaml refers to is MedicationViewModel. In PatientDetails i ve AddnewAllergy.xaml and SaveAllergy.xaml. The ViewModel that both these xaml refers to is AllergyViewModel. Now my problem is from MedicationViewModel  i ve to show AddnewAllergy.xaml. In this situation Medication.xaml has to be invisible. From AddnewAllergy on clicking the button  it should close the AddnewAllergy.xaml and show the SaveAllergy.xaml. After saving the details should close the SaveAllergy.xaml and Medication.xaml has to be visible. How can i do this?? The problem is how can i show the xaml which is in a different project. Anyone please help. Any help is highly appreciated. Thanks in advance.

Mahadesh Mahalingappa · Answer

Have you tried this one . http://forums.silverlight.net/p/202611/474350.aspx

oc A · Answer

If anyone know the answer please help

Jaganathan Bantheswaran · Answer

Its is better to use single Silverlight Business application for this type of navigation.

oc A · Answer

Thanks for the reply. I ve added PatientDetails reference to Diagnosis. But the problem is... in MedicationViewModel  i am making the Medication.xaml invisible and calling the AddnewAllergy.xaml. After processing the functions in AllergyViewModel it has to again make the Medication.xaml visible. How can i do this ??

Jaganathan Bantheswaran · Answer

Hi Add the Diagnosis project reference to PatientDetails project. Add the namespace of the controls defined in PatientDetails projects to the Diagnosis project xaml page you want and use the control.