I have a scenario that I have a WPF usercontrol UI, from this UI I will call a pop up usercontrol UI. When I will select a value from pop up usercontrol UI Grid, then popup ui will be close and the selected popup grid value will get in main UI without visual state change of the main UI. Main UI ViewModel: private void OnInsplanPicker(object sender) { InsurancePlanLookup window = new InsurancePlanLookup(); window.BindEvent += window_BindEvent; DockHelper.AddPanel(window,"Insuranceplan lookup"); } void window_BindEvent(long insplanId) { Nhinsplanid_FK = insplanId; } Popup code behind public partial class InsurancePlanLookup { public delegate void BindDelegate(long insplanId); public event BindDelegate BindEvent; VMInsurancePlanLookup vm ; public InsurancePlanLookup() { InitializeComponent(); vm = new VMInsurancePl
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