/// <summary>
/// Append a CourseFaculty object to the CourseFaculty CSV file
/// </summary>
/// <param name="coursefaculty"></param>
private void SaveCourseFacultyToFile(CourseFaculty coursefaculty)
{
using (System.IO.StreamWriter file = new System.IO.StreamWriter("CourseFaculty.csv", true))
{
file.WriteLine(coursefaculty.ToRecord());
file.Close();
}
ExposeRelatedFaculty();
}
/// <summary>
/// Performs validation of and disk data update routine to allow Faculty to Unlinked from a Course as an Instructor
/// </summary>
/// <param name="StudentID">The unique ID of the Faculty to be unlinked</param>
/// <param name="CourseID">The unique ID of the Course the Student is to be unregistered from</param>
public static void DeleteCourseFaculty(Int16 CourseID, Int16 FacultyID)
{
//Verify that Course exists
Course course = Globals.GetCourse(CourseID);
if (course == null)
{
throw new Exception("ERROR: Invalid Course ID (" + CourseID.ToString() + ")");
//return;
}
//Verify that Faculty exists
Faculty faculty = Globals.GetFaculty(FacultyID);
if (faculty == null)
{
throw new Exception("ERROR: Invalid Student ID (" + FacultyID.ToString() + ")");
//return;
}
//Ask user to confirm the update
if (MessageBox.Show("Are you sure you want to remove the faculty member named " + faculty.FirstName + " " + faculty.LastName + " as an instructor of course number " + course.CourseNumber + " ?", "Confirm Remove Instructor", MessageBoxButtons.YesNo, MessageBoxIcon.Question).Equals(DialogResult.No))
{
return;
}
ArrayList alOutput = new ArrayList();
//Loop through the registry and output all CourseFaculty to an ArrayList except the Faculty to be UnLinked
String CourseFacultyLine;
System.IO.StreamReader CourseFacultyFile = new System.IO.StreamReader("CourseFaculty.csv");
while ((CourseFacultyLine = CourseFacultyFile.ReadLine()) != null)
{
CourseFaculty coursefaculty = new CourseFaculty(CourseFacultyLine);
if (coursefaculty != null)
{
if ((coursefaculty.FacultyID.Equals(FacultyID)) && (coursefaculty.CourseID.Equals(CourseID)))
{
}
else
{
alOutput.Add(CourseFacultyLine);
}
}
}
CourseFacultyFile.Close();
//Write the ArrayList back to the CourseFaculty CSV file without Appending
using (System.IO.StreamWriter file = new System.IO.StreamWriter("CourseFaculty.csv", false))
{
foreach (String s in alOutput)
{
file.WriteLine(s);
}
file.Close();
}
}
/// <summary>
/// User clicked the Assign Faculty link, so popup the Faculty selection form and if "Select" is clicked on that form, save the CourseFaculty update to the CSV file
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void lnkAssignFaculty_Click(object sender, EventArgs e)
{
frmSelectFaculty fSelectFaculty = new frmSelectFaculty();
if (fSelectFaculty.ShowDialog().Equals(DialogResult.OK))
{
CourseFaculty coursefaculty = new CourseFaculty();
Course course = (Course)lstCourse.SelectedItem;
Faculty faculty = (Faculty)fSelectFaculty.cboFaculty.SelectedItem;
coursefaculty.CourseID = course.ID;
coursefaculty.FacultyID = faculty.ID;
SaveCourseFacultyToFile(coursefaculty);
splitContainer1.Panel2Collapsed = false;
}
}
/// <summary>
/// Validates that a Faculty teaches a Course as indicated in the CourseFaculty CSV file
/// </summary>
/// <param name="FacultyID">The unique ID of the Faculty to be verified</param>
/// <returns>True if the Faculty teaches the Course</returns>
public static bool FacultyTeachesCourse(Int16 CourseID, Int16 FacultyID)
{
bool bResult = false;
String CourseFacultyLine;
System.IO.StreamReader CourseFacultyFile = new System.IO.StreamReader("CourseFaculty.csv");
while ((CourseFacultyLine = CourseFacultyFile.ReadLine()) != null)
{
CourseFaculty coursefaculty = new CourseFaculty(CourseFacultyLine);
if ((coursefaculty.CourseID.Equals(CourseID)) && (coursefaculty.FacultyID.Equals(FacultyID)))
{
bResult = true;
break;
}
}
CourseFacultyFile.Close();
return(bResult);
}