private void PopulateChoices()
{
// Initialization.
string strConn = "Data Source=LAPTOP-6RBMDIS7\\SQLEXPRESS;Database=DBMS_Project;Integrated Security=SSPI;";
SqlConnection sqlConnection = new SqlConnection(strConn);
SqlCommand sqlCommand = new SqlCommand("uspFetchCoursePreferenceDetails", sqlConnection);
object rowCount;
try
{
// Settings.
sqlCommand.CommandType = CommandType.StoredProcedure;
sqlCommand.Connection = sqlConnection;
sqlCommand.CommandTimeout = 12 * 3600; //// Setting timeeout for longer queries to 12 hours.
sqlCommand.Parameters.Add("@student_id", SqlDbType.Int).Value = _studentId;
// Open.
sqlConnection.Open();
SqlDataReader reader = sqlCommand.ExecuteReader();
if (reader.HasRows)
{
while (reader.Read())
{
SelectedCourse sc = new SelectedCourse();
sc.CollegeName = reader.GetString(0);
sc.CourseName = reader.GetString(1);
sc.Priority = reader.GetInt32(2);
lvSelectedCourse.Items.Add(sc);
}
}
else
{
Console.WriteLine("No rows found.");
}
sqlConnection.Close();
}
catch (Exception ex)
{
// Close.
sqlConnection.Close();
}
}
private void btnAddCourse_Click(object sender, RoutedEventArgs e)
{
int priority = 0;
if (string.IsNullOrWhiteSpace(cbCourseName.SelectedItem.ToString()))
{
MessageBox.Show("Please select course name", "Invalid course name", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
if (string.IsNullOrWhiteSpace(cbCollegeName.SelectedItem.ToString()))
{
MessageBox.Show("Please select college name", "Invalid college name", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
if (!int.TryParse(udPriority.Value.ToString(), out priority) || priority < 1)
{
MessageBox.Show("Please enter value more than or equal to 1", "Invalid priority", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
var course = new SelectedCourse()
{
CollegeName = cbCollegeName.SelectedItem.ToString(), Priority = priority, CourseName = cbCourseName.SelectedItem.ToString()
};
foreach (var courseItem in lvSelectedCourse.Items)
{
if (((SelectedCourse)courseItem).CollegeName == course.CollegeName &&
((SelectedCourse)courseItem).CourseName == course.CourseName)
{
MessageBox.Show("Same combination exists, please enter different combination", "Combination exists", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
if (((SelectedCourse)courseItem).Priority == course.Priority)
{
MessageBox.Show("Same priority exists, please enter different priority", "Priority exists", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
}
lvSelectedCourse.Items.Add(course);
}
private void OnPrevClicked(object sender, RoutedEventArgs e)
{
if (tabDocDetail.IsSelected)
{
if (!UpdateDocumentDetail())
{
MessageBox.Show("Unexpected Error");
}
else
{
MessageBox.Show("Document details saved successfully!!!", "Data saved", MessageBoxButton.OK);
tabStudentDetail.IsSelected = true;
btnPrev.Visibility = Visibility.Collapsed;
FetchStudentDetails();
}
}
else if (tabMarkDetails.IsSelected)
{
if (!UpdateMarkDetails())
{
MessageBox.Show("Unexpected Error");
}
else
{
MessageBox.Show("Mark details saved successfully!!!", "Data saved", MessageBoxButton.OK);
tabDocDetail.IsSelected = true;
FetchDocumentDetails();
}
}
else if (tabChoice.IsSelected)
{
foreach (var course in lvSelectedCourse.Items)
{
SelectedCourse selectedCourse = course as SelectedCourse;
bool resp = UpdateCourseDetails(selectedCourse.CollegeName, selectedCourse.CourseName, selectedCourse.Priority);
if (!resp)
{
MessageBox.Show("Unexpected Error");
return;
}
}
MessageBox.Show("Course choice details saved successfully!!!", "Data saved", MessageBoxButton.OK);
FetchMarkDetails();
tabMarkDetails.IsSelected = true;
btnNext.Visibility = Visibility.Visible;
}
else if (tabAllocation.IsSelected)
{
foreach (var course in lvSelectedCourse.Items)
{
SelectedCourse selectedCourse = course as SelectedCourse;
bool resp = UpdateCourseDetails(selectedCourse.CollegeName, selectedCourse.CourseName, selectedCourse.Priority);
if (!resp)
{
MessageBox.Show("Unexpected Error");
return;
}
}
tabChoice.IsSelected = true;
btnNext.Visibility = Visibility.Visible;
}
}
