private void RemoveData(DataTransferObjectLibrary.Person person)
{
using (ServiceReference.ServiceClient client = new ServiceReference.ServiceClient())
{
int result = client.DeletePerson(person.Id);
}
}
private void InsertData(DataTransferObjectLibrary.Person person)
{
using (ServiceReference.ServiceClient client = new ServiceReference.ServiceClient())
{
int result = client.InsertPerson(person);
}
}
/// <summary>
/// Event triggered once the "Delete Users" button is clicked.
/// Users to delete will be obtained from UI, the list will be send to server
/// and the applied changes in the server will be communicated with client to reflect in UI.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void DeleteButton_Click(object sender, RoutedEventArgs e)
{
try
{
//Step1: Get list of Users to Delete from UI.
List <string> usersToDelete = new List <string>();
foreach (Users item in UsersDataGrid.ItemsSource)
{
if (item.Delete == true)
{
usersToDelete.Add(item.UserName);
}
}
//Step 2: Send list of Users to Delete to Server (if any)
//DataGrid will be updated at the end of deletion process
if (usersToDelete.Count == 0)
{
MessageBox.Show("No users selected for Delete!");
}
else
{
ServiceReference.ServiceClient server = new ServiceReference.ServiceClient();
int numberOfDeletedUsers = server.DeleteUsers(usersToDelete.ToArray());
MessageBox.Show($"{numberOfDeletedUsers} users deleted");
UpdateDataGrid();
}
}
catch (Exception err)
{
MessageBox.Show($"Error after Delete Users button clicked: {err}");
}
}
/// <summary>
/// Communicates with server and exchange login info.
/// Upon successful login of normal user, it shows a popup
/// Upon successful login of admin user, it shows a popup + load admin panel
/// If login credentials are not correct, it shows a popup reporting this
/// </summary>
private void TryLogin()
{
try
{
ServiceReference.ServiceClient login = new ServiceReference.ServiceClient();
bool isFound = login.MakeLogin(UserNameTextBox.Text, EncodedPassword);
if (isFound == false)
{
MessageBox.Show("User Not Found");
}
else
{
if (isFound == true && UserNameTextBox.Text == "admin")
{
MessageBox.Show($"Successfull Login. Welcome {UserNameTextBox.Text}!");
AdminWindow adminWindow = new AdminWindow();
adminWindow.Show();
}
if (isFound == true && UserNameTextBox.Text != "admin")
{
MessageBox.Show($"Successfull Login. Welcome {UserNameTextBox.Text}!");
}
}
}
catch (Exception err)
{
MessageBox.Show($"Error while trying to login in client side: {err}");
}
}
private void Refresh()
{
DataTransferObjectLibrary.ListOfPerson persons;
using (ServiceReference.ServiceClient client = new ServiceReference.ServiceClient())
{
persons = client.GetAllPerson();
}
this.Persons.Clear();
foreach (var item in persons.PersonList)
{
this.Persons.Add(item);
}
this.data.ItemsSource = this.Persons;
this.data.DisplayMemberPath = "FirstName";
}
/// <summary>
/// Updates the data grid according to the most recent version of the users obtained from server.
/// </summary>
private void UpdateDataGrid()
{
try
{
ServiceReference.ServiceClient server = new ServiceReference.ServiceClient();
List <string> allUsers = server.GetAllUsers().ToList();
List <Users> users = new List <Users>();
foreach (var item in allUsers)
{
users.Add(new Users(item));
}
UsersDataGrid.ItemsSource = users;
}
catch (Exception err)
{
MessageBox.Show($"Error while trying to update the data grid: {err}");
}
}