private void btnUpdate_Click(object sender, EventArgs e)
{
if (listViewCourse.SelectedItems.Count > 0)
{
try
{
if (IsValid())
{
int courseID = int.Parse(listViewCourse.SelectedItems[0].SubItems[0].Text);
BusinessLogic.CourseManager courseManager = new BusinessLogic.CourseManager();
BusinessEntity.CourseEntity oldCourse = courseManager.GetSingle(courseID);
BusinessEntity.CourseEntity newCourse = new BusinessEntity.CourseEntity();
newCourse.ID = courseID;
newCourse.Title = txtTitle.Text;
newCourse.Description = txtDescription.Text;
courseManager.Update(newCourse);
MessageBox.Show("Course Information Updated Successfully.");
LoadCourses();
}
}
catch (Exception ex)
{
//save to log table
MessageBox.Show("Update Failed, Please try again.");
}
}
else
{
MessageBox.Show("Please select course from the list first.");
}
}
private void btnDelete_Click(object sender, EventArgs e)
{
if (listViewCourse.SelectedItems.Count > 0)
{
try
{
DialogResult result = MessageBox.Show("Are you sure you want to delete the selected record?", "Training Information Management System", MessageBoxButtons.YesNo);
if (result == DialogResult.OK)
{
int courseID = int.Parse(listViewCourse.SelectedItems[0].SubItems[0].Text);
BusinessLogic.CourseManager courseManager = new BusinessLogic.CourseManager();
BusinessEntity.CourseEntity oldCourse = courseManager.GetSingle(courseID);
courseManager.Delete(oldCourse);
MessageBox.Show("Course Information Deleted Successfully.");
LoadCourses();
}
}
catch (Exception ex)
{
//save to log table
MessageBox.Show("Delete Failed, Please try again.");
}
}
else
{
MessageBox.Show("Please select trainee from the list first.");
}
}
private void listViewCourse_SelectedIndexChanged(object sender, EventArgs e)
{
if (listViewCourse.SelectedItems.Count > 0)
{
int courseID = int.Parse(listViewCourse.SelectedItems[0].SubItems[0].Text);
BusinessLogic.CourseManager courseManager = new BusinessLogic.CourseManager();
BusinessEntity.CourseEntity course = courseManager.GetSingle(courseID);
txtTitle.Text = course.Title;
txtDescription.Text = course.Description;
}
}