private void DeleteButton_Click(object sender, RoutedEventArgs e)
{
LecturerGridModel lecturer = (LecturerGridModel)LecturerDataGrid.SelectedItem;
LecturerDataService lecturerDataService = new LecturerDataService(new EntityFramework.TimetableManagerDbContext());
lecturerDataService.DeleteLecturer(lecturer.EmployeeId).ContinueWith(result =>
{
if (result == null)
{
MessageBox.Show("Sorry! Error occured", "Error");
}
});
_ = LecturerDataList.Remove(lecturer);
}
private async Task LoadLecturerData()
{
LecturerDataService lecturerDataService = new LecturerDataService(new EntityFramework.TimetableManagerDbContext());
LecturerList = await lecturerDataService.GetLecturersAsync();
LecturerList.ForEach(e =>
{
LecturerGridModel lecturerObj = new LecturerGridModel
{
EmployeeId = e.EmployeeId,
EmployeeName = e.EmployeeName,
FacultyName = e.Faculty.FacultyName,
DepartmentName = e.Department.DepartmentName,
CenterName = e.Center.CenterName,
BuildingName = e.Building.BuildingName,
LevelName = e.Level.LevelName,
Rank = e.Rank
};
LecturerDataList.Add(lecturerObj);
});
}
private void SaveButton_Click(object sender, RoutedEventArgs e)
{
if (EmployeeIdTextBox.Text.Trim() == "" || EmployeeNameTextBox.Text.Trim() == "" || RankTextBox.Text.Trim() == "" || FacutlyComboBox.SelectedItem == null || DepartmentComboBox.SelectedItem == null || CenterComboBox.SelectedItem == null || BuildingComboBox.SelectedItem == null || LevelComboBox.SelectedItem == null)
{
MessageBox.Show("Sorry! Fields cannot be empty!", "Error");
return;
}
Lecturer lecturer = new Lecturer
{
EmployeeId = Int32.Parse(EmployeeIdTextBox.Text.Trim()),
EmployeeName = EmployeeNameTextBox.Text.Trim(),
Rank = float.Parse(RankTextBox.Text.Trim())
};
string facultyName = FacutlyComboBox.SelectedItem.ToString();
string departmentName = DepartmentComboBox.SelectedItem.ToString();
string centerName = CenterComboBox.SelectedItem.ToString();
string buildingName = BuildingComboBox.SelectedItem.ToString();
string levelName = LevelComboBox.SelectedItem.ToString();
LecturerDataService lecturerDataService = new LecturerDataService(new EntityFramework.TimetableManagerDbContext());
if (!EmployeeIdTextBox.IsEnabled)
{
EmployeeIdTextBox.IsEnabled = true;
lecturerDataService.UpdateLecturer(lecturer, facultyName, departmentName, centerName, buildingName, levelName).ContinueWith(result =>
{
if (result != null)
{
MessageBox.Show("Lecture Updated!", "Success");
}
else
{
MessageBox.Show("Sorry! Error occured!", "Error");
}
});
}
else
{
lecturerDataService.AddLecturer(lecturer, facultyName, departmentName, centerName, buildingName, levelName).ContinueWith(result =>
{
if (result != null)
{
MessageBox.Show("Lecture Added!", "Success");
}
else
{
MessageBox.Show("Sorry! Error occured!", "Error");
}
});
}
EmployeeIdTextBox.Clear();
EmployeeNameTextBox.Clear();
RankTextBox.Clear();
FacutlyComboBox.SelectedIndex = -1;
DepartmentComboBox.SelectedIndex = -1;
CenterComboBox.SelectedIndex = -1;
BuildingComboBox.SelectedIndex = -1;
LevelComboBox.SelectedIndex = -1;
LecturerDataList.Clear();
_ = this.LoadLecturerData();
}
