private void CreateCourseBtn_Click(object sender, EventArgs e)
{
if (CreateEditCourseBtn.Text == "Create")
{
if (string.IsNullOrWhiteSpace(CourseTitleBox.Text)) //if nothing is written in the title box
{
CourseTitleErrorLabel.Show(); //Highlight it
}
else
{
CourseTitleErrorLabel.Hide();
if (UsersList.SelectedItems.Count == 0)
{
DialogResult question = MessageBox.Show("You didn't select a professor. Do you want to continue?", "No selection", MessageBoxButtons.YesNo);
if (question == DialogResult.Yes)
{
LocalCoursesDatabase.Add(CourseTitleBox.Text);
LocalCoursesDatabase.Add("");
ChangeMsgLabel("SuccessCreate", "Courses");
UpdateList("Courses");
ClearBoxes();
}
else
{
return;
}
}
else
{
LocalCoursesDatabase.Add(CourseTitleBox.Text);
LocalCoursesDatabase.Add(UsersList.SelectedItems[0].SubItems[0].Text);//Add professor to the course
ChangeMsgLabel("SuccessCreate", "Courses");
UpdateList("Courses");
ClearBoxes();
}
}
}
else
{
try
{
//The problem is: When the admin wants to change only the course's title, we have to write the same
//professor to the list, next to the course.
string tempProf = CoursesList.SelectedItems[0].SubItems[1].Text;
DeleteSelectedItems(CoursesList.SelectedItems[0].SubItems[0].Text, "Courses");
if (UsersList.SelectedItems.Count == 0)//If no new prof is selected then add the old one
{
LocalCoursesDatabase.Add(CourseTitleBox.Text);
LocalCoursesDatabase.Add(tempProf);
ChangeMsgLabel("SuccessEdit", "Courses");
ClearBoxes();
UpdateList("Courses");
}
else
{
LocalCoursesDatabase.Add(CourseTitleBox.Text);
LocalCoursesDatabase.Add(UsersList.SelectedItems[0].SubItems[0].Text);
ChangeMsgLabel("SuccessEdit", "Courses");
ClearBoxes();
UpdateList("Courses");
}
/*
* try//if else with try catch
* {//if the admin does now want to select a new professor an exception will happen by the following code
* reverseList.Add(UsersList.SelectedItems[0].SubItems[1].Text);
* }
* catch(Exception msg)
* {//The admin didn't select a new prof, so we added the previous one
* reverseList.Add(tempProf);
* }
* finally
* {
* reverseList.Add(CourseTitleBox.Text);
* }
* LocalCoursesDatabase.Add(reverseList[1]);//First add the course title
* LocalCoursesDatabase.Add(reverseList[0]);//then add the professor
*/
}
catch (Exception msg)
{
MessageBox.Show("Please first select a course");
}
}
}
public AdminForm()
{
InitializeComponent();
UserGroupBox.Controls.Add(NameBox);
UserGroupBox.Controls.Add(RegNumBox);
UserGroupBox.Controls.Add(SurnameBox);
UserGroupBox.Controls.Add(PassBox);
UserGroupBox.Controls.Add(EmailBox);
UserGroupBox.Controls.Add(CapacityBox);
UserGroupBox.Controls.Add(CreateEditUserBtn);
UserGroupBox.Controls.Add(NameLabel);
UserGroupBox.Controls.Add(RegNumLabel);
UserGroupBox.Controls.Add(SurnameLabel);
UserGroupBox.Controls.Add(PassLabel);
UserGroupBox.Controls.Add(EmailLabel);
UserGroupBox.Controls.Add(CapacityLabel);
//Creating the UsersList
UsersList.Bounds = new Rectangle(new Point(196, 12), new Size(375, 500));
UsersList.View = View.Details;
UsersList.FullRowSelect = true;
UsersList.GridLines = true;
UsersList.Sorting = SortOrder.Ascending;
UsersList.Columns.Add("Registration Number", -2, HorizontalAlignment.Left);
UsersList.Columns.Add("Name", -2, HorizontalAlignment.Left);
UsersList.Columns.Add("Surname", -2, HorizontalAlignment.Left);
UsersList.Columns.Add("Email", -2, HorizontalAlignment.Left);
UsersList.Columns.Add("Capacity", -2, HorizontalAlignment.Left);
//============================================================================
LocalUsersDatabase.Add("kp0000");
LocalUsersDatabase.Add("Mike");
LocalUsersDatabase.Add("Kalliafas");
LocalUsersDatabase.Add("*****@*****.**");
LocalUsersDatabase.Add("Professor");
LocalUsersDatabase.Add("p50000");
LocalUsersDatabase.Add("Alberto");
LocalUsersDatabase.Add("Makavegias");
LocalUsersDatabase.Add("*****@*****.**");
LocalUsersDatabase.Add("Student");
LocalCoursesDatabase.Add("Algebra");
LocalCoursesDatabase.Add("Professor 1");
LocalCoursesDatabase.Add("Physics");
LocalCoursesDatabase.Add("Professor 2");
//Users Right Click menu creation
ToolStripMenuItem UsersRightClickMenuEdit = new ToolStripMenuItem("Edit");
ToolStripMenuItem UsersRightClickMenuDelete = new ToolStripMenuItem("Delete");
UsersRightClickMenuDelete.Click += new EventHandler(UserDelete_RightClick);
UsersRightClickMenuEdit.Click += new EventHandler(UserEdit_RightClick);
UsersRightClickMenu.Items.AddRange(new ToolStripItem[] { UsersRightClickMenuEdit, UsersRightClickMenuDelete });
//===================================================================================
//Courses Right Click menu creation
ToolStripMenuItem CoursesRightClickMenuEdit = new ToolStripMenuItem("Edit");
ToolStripMenuItem CoursesRightClickMenuDelete = new ToolStripMenuItem("Delete");
CoursesRightClickMenuDelete.Click += new EventHandler(CoursesDelete_RightClick);
CoursesRightClickMenuEdit.Click += new EventHandler(CoursesEdit_RightClick);
CoursesRightClickMenu.Items.AddRange(new ToolStripItem[] { CoursesRightClickMenuEdit, CoursesRightClickMenuDelete });
//===================================================================================
//Creating the CoursesList
CoursesList.Bounds = new Rectangle(new Point(150, 12), new Size(250, 500));
CoursesList.View = View.Details;
CoursesList.FullRowSelect = true;
CoursesList.GridLines = true;
CoursesList.Sorting = SortOrder.Ascending;
CoursesList.Columns.Add("Courses", -2, HorizontalAlignment.Left);
CoursesList.Columns.Add("Professor", -2, HorizontalAlignment.Left);
//=============================================================================
ChangeMsgLabel("Create", "Users");
CourseGroupBox.Text = "";
UserGroupBox.Text = "";
CoursesList.Hide();
UsersList.Hide();
CourseGroupBox.Hide();
CourseTitleErrorLabel.Hide();
AssignMsgLabel.Hide();
AssignCourseBtn.Hide();
RegMsgLabel.Hide();
NameMsgLabel.Hide();
SurnameMsgLabel.Hide();
EmailMsgLabel.Hide();
PassMsgLabel.Hide();
CapacityMsgLabel.Hide();
CancelCoursesBtn.Hide();
RegNumErrorLabel.Hide();
NameErrorLabel.Hide();
SurnameErrorLabel.Hide();
EmailErrorLabel.Hide();
PassErrorLabel.Hide();
CapacityErrorLabel.Hide();
CancelUsersBtn.Hide();
RegNumErrorLabel.SendToBack();
NameErrorLabel.SendToBack();
SurnameErrorLabel.SendToBack();
EmailErrorLabel.SendToBack();
PassErrorLabel.SendToBack();
CapacityErrorLabel.SendToBack();
UserGroupBox.Left = (this.ClientSize.Width - UserGroupBox.Width + 100) / 2;
UserGroupBox.Top = (this.ClientSize.Height - UserGroupBox.Height - 100) / 2;
UpdateList("Users");
UpdateList("Courses");
}