private void BindDepartments()
{
using (EmployeeDataContext context = new EmployeeDataContext(App.ConnectionString))
{
var query = from d in context.Departments select d;
this.lstDepartment.ItemsSource = query.ToList();
}
}
/// <summary>
/// Constructor for the Application object.
/// </summary>
public App()
{
// Global handler for uncaught exceptions.
UnhandledException += Application_UnhandledException;
// Standard XAML initialization
InitializeComponent();
// Phone-specific initialization
InitializePhoneApplication();
// Language display initialization
InitializeLanguage();
// Show graphics profiling information while debugging.
if (Debugger.IsAttached)
{
// Display the current frame rate counters.
Application.Current.Host.Settings.EnableFrameRateCounter = true;
// Show the areas of the app that are being redrawn in each frame.
//Application.Current.Host.Settings.EnableRedrawRegions = true;
// Enable non-production analysis visualization mode,
// which shows areas of a page that are handed off to GPU with a colored overlay.
//Application.Current.Host.Settings.EnableCacheVisualization = true;
// Prevent the screen from turning off while under the debugger by disabling
// the application's idle detection.
// Caution:- Use this under debug mode only. Application that disables user idle detection will continue to run
// and consume battery power when the user is not using the phone.
PhoneApplicationService.Current.UserIdleDetectionMode = IdleDetectionMode.Disabled;
}
string DbConnectionString = ConnectionString;
using (EmployeeDataContext db = new EmployeeDataContext(DbConnectionString))
{
if (!db.DatabaseExists())
{
db.CreateDatabase();
db.Departments.InsertOnSubmit(new Department { Name = "Accounts" });
db.Departments.InsertOnSubmit(new Department { Name = "Sales" });
db.Departments.InsertOnSubmit(new Department { Name = "Transfer" });
db.SubmitChanges();
}
}
}
private void AddEmployee()
{
using (EmployeeDataContext context = new EmployeeDataContext(App.ConnectionString))
{
var department = this.lstDepartment.SelectedItem as Department;
var contextualDepartment = context.Departments.FirstOrDefault(e => e.Id == department.Id);
Employee emp = new Employee
{
EName = this.txtName.Text,
Age = Convert.ToInt32(this.txtAge.Text),
Department = contextualDepartment
};
context.Employees.InsertOnSubmit(emp);
context.SubmitChanges();
}
}
private void UpdateEmployee()
{
using (EmployeeDataContext context = new EmployeeDataContext(App.ConnectionString))
{
var department = this.lstDepartment.SelectedItem as Department;
var contextualDepartment = context.Departments.FirstOrDefault(e => e.Id == department.Id);
IQueryable<Employee> empQuery = from e in context.Employees where e.EName == this.txtName.Text select e;
Employee empToUpdate = empQuery.FirstOrDefault();
if (empToUpdate != null)
{
empToUpdate.Age = Convert.ToInt32(this.txtAge.Text);
empToUpdate.Department = contextualDepartment;
}
context.SubmitChanges();
}
}
private IList<Employee> GetEmployees()
{
using (EmployeeDataContext context = new EmployeeDataContext(App.ConnectionString))
{
var query = from e in context.Employees select e;
return query.ToList();
}
}
private void DeleteEmployee()
{
using (EmployeeDataContext context = new EmployeeDataContext(App.ConnectionString))
{
IQueryable<Employee> empQuery = from e in context.Employees where e.EName == this.txtName.Text select e;
Employee empToDelete = empQuery.FirstOrDefault();
if (empToDelete != null)
{
context.Employees.DeleteOnSubmit(empToDelete);
}
context.SubmitChanges();
}
}
