//--- add course
private void button1_Click(object sender, EventArgs e)
{
comboBox1.Text = string.Empty;
try
{
using (Online_Exame ent = new Online_Exame())
{
ent.InsertNewCourse(textBox1.Text);
ent.SaveChanges();
MessageBox.Show("Added Successfully");
Courses.Items.Clear();
Instructors.Items.Clear();
label7.Text = comboBox1.Text = comboBox3.Text = textBox1.Text = string.Empty;
LoadCourses();
}
}
catch (FormatException)
{
MessageBox.Show("Please complete the information");
}
catch (InvalidOperationException)
{
MessageBox.Show("Invalid Information");
}
}