LightSwitch HTML 5 Application

Question

Can someone please provide some help in creating an HTML5 LightSwitch Application that triggers stored procedures from a custom button on an add/edit screen.  I have been following this tutorial https://msdn.microsoft.com/en-us/library/jj635144.aspx
but it is geared towards a desktop application and the final code shown in VB/C# has to implemented in .js for the Web Application.

Answer 1

The javascript equivalent of this:
Private Sub UpdateEmployeeInfo_Execute()
Dim dataWorkspace = New DataWorkspace
Dim employee = Me.Employees.SelectedItem
Dim operation =
dataWorkspace.ApplicationData.UpdateEmployeePersonalInfoOperations.AddNew()
operation.EmployeeID = employee.EmployeeID
operation.NationalIDNumber = employee.NationalIDNumber
operation.BirthDate = employee.BirthDate
operation.MaritalStatus = employee.MaritalStatus
operation.Gender = employee.Gender
dataWorkspace.ApplicationData.SaveChanges()
End Sub
is this:
myapp.BrowseEmployees.UpdateEmployeeInfo_execute = function (screen) {
var employee = screen.Employees.selectedItem
var operation =
new myapp.UpdateEmployeePersonalInfoOperations();
operation.EmployeeID = employee.EmployeeID
operation.NationalIDNumber = employee.NationalIDNumber
operation.BirthDate = employee.BirthDate
operation.MaritalStatus = employee.MaritalStatus
operation.Gender = employee.Gender
myapp.activeDataWorkspace.ApplicationData
.saveChanges().then(function () {
alert("Success");
HTH,
Josh