I would like to know the best way to utilise a radwindow for the following scenario.

in my application im setting a link to allow a user to mark where their location is on google maps. the google map is being loaded in a radwindow, im currently passing the record id and postcode to the map page via a querystring. is this the best way or is there an alternative?

where im having a problem is i want to include a button whereby the user clicks after moving the marker and this function will close the window and pass the parameters for id, postcode, lat + lng coordinates to the calling page.

the samples ive found are client side but i need the parameter values server side as i want to update a database record with the coorinates related to the location set by the user.

i also need a way to deal with the user closing the window via the x in the corner rather than my button. maybe a prompt?

so the main issue is, once the user clicks the button to close the window how do i get the values in my code-behind module?

telerik:RadScheduler runat="server" ID="scheduleApp1" EnableDescriptionField="True" MinutesPerRow="10" onappointmentinsert="scheduleApp1_AppointmentInsert"> <Reminders Enabled="True" /> <WebServiceSettings><ODataSettings InitialContainerName=""></ODataSettings> </WebServiceSettings> </telerik:RadScheduler>

private void FillSchedule()

{

scheduleApp1.DataKeyField = "ID";

 scheduleApp1.DataStartField = "Start";

 scheduleApp1.DataEndField = "End";

 scheduleApp1.DataSubjectField = "Subject";

 scheduleApp1.DataRecurrenceField = "RecurrenceRule";

 scheduleApp1.DataRecurrenceParentKeyField = "RecurrenceParentID";

 ResourceType rt = new ResourceType("Doctors");

 rt.DataSource = objbl.GetDoctors();

 rt.KeyField = "emp_id";

 rt.ForeignKeyField = "emp_id";

 rt.TextField = "Emp_Name";

 scheduleApp1.ResourceTypes.Add(rt);

 scheduleApp1.GroupBy = "Doctors";

 scheduleApp1.DataSource = objdb.GetAppointments(scheduleApp1);