//If all lectures radio button changed
private void All_lectures_radio_CheckedChanged(object sender, EventArgs e)
{
//If the radio button is checked
if (All_lectures_radio.Checked == true)
{
//Clear chart
chart.Series["Work Hours"].Points.Clear();
//Change title
chart_title.Text = "Lecturers work hours";
int amountOfLecturers;
//Get table of all lecturers
DataSet lecturersDS = SqlWorker.GetDataSet("Select * from Users where type='Lecturer'");
amountOfLecturers = SqlWorker.getAmountOfLecturers();
//Get work houres for each lecturer and puit it on the chart
for (int i = 0; i < amountOfLecturers; i++)
{
String name = lecturersDS.Tables[0].Rows[i]["Name"].ToString();
String id = lecturersDS.Tables[0].Rows[i]["ID"].ToString();
int workHours = SqlWorker.getWorkHours(Convert.ToInt32(id), false, -1);
chart.Series["Work Hours"].Points.AddXY(name, workHours);
}
//Remove lables with zero values in the pie chart
updatePieChart();
}
}
//Constructor
public Add_new_course()
{
InitializeComponent();
this.Size = new Size(351, 375);
if (SqlWorker.getAmountOfLecturers() > 1 && SqlWorker.getAmountOfPractitioners() > 1)
{
LecturerID_combo.DataSource = SqlWorker.GetDataSet("SELECT * From Users Where type='Lecturer'").Tables[0];
LecturerID_combo.DisplayMember = "Name";
practitionerID_combo.DataSource = SqlWorker.GetDataSet("SELECT * From Users Where type='Practitioner'").Tables[0];
practitionerID_combo.DisplayMember = "Name";
}
else
{
MessageBox.Show("There is no practitioners/lecturers in the system!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
this.Close();
}
}
//Ctor
public Work_Hours()
{
InitializeComponent();
//Fill comboboxes of lecturers and practitioners
if (SqlWorker.getAmountOfLecturers() > 0 || SqlWorker.getAmountOfPractitioners() > 0)
{
chart_type_combo.SelectedIndex = 0;
if (SqlWorker.getAmountOfLecturers() > 0)
{
lecturers_combo.DataSource = SqlWorker.GetDataSet("SELECT * From Users Where type='Lecturer'").Tables[0];
lecturers_combo.DisplayMember = "Name";
lecturers_combo.SelectedIndex = 0;
}
else
{
All_lectures_radio.Enabled = false;
Lecturer_radio.Enabled = false;
lecturers_combo.Enabled = false;
}
if (SqlWorker.getAmountOfPractitioners() > 0)
{
practitioner_combo.DataSource = SqlWorker.GetDataSet("SELECT * From Users Where type='Practitioner'").Tables[0];
practitioner_combo.DisplayMember = "Name";
practitioner_combo.SelectedIndex = 0;
}
else
{
all_practitioner_radio.Enabled = false;
practitioner_radio.Enabled = false;
practitioner_combo.Enabled = false;
}
}
else
{
MessageBox.Show("There is no practitioners/lecturers in the system!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
this.Close();
}
All_lectures_radio.Checked = true;
}
