public bool isFound(String firstName, String lastName)
{
var context = new FabrikamEntities();
var query =
from c in context.Students
where c.FirstName == firstNameTB.Text && c.LastName == lastNameTB.Text
select c;
return(query.Any());
}
public void addRow(String firstName, String lastName)
{
var context = new FabrikamEntities();
if (!String.IsNullOrEmpty(firstNameTB.Text) && !String.IsNullOrEmpty(lastNameTB.Text))
{
Student newStud = new Student()
{
FirstName = firstNameTB.Text,
LastName = lastNameTB.Text,
Major = majorCB.Text
};
context.Students.Add(newStud);
context.SaveChanges();
}
else
{
MessageBox.Show("You must enter a first and last name.");
}
}
public void findRow(String firstName, String lastName)
{
var context = new FabrikamEntities();
var query =
from c in context.Students
where c.FirstName == firstNameTB.Text && c.LastName == lastNameTB.Text
select c;
if (!String.IsNullOrEmpty(firstNameTB.Text) && !String.IsNullOrEmpty(lastNameTB.Text))
{
foreach (var Student in query)
{
majorCB.Text = Student.Major;
}
}
else
{
MessageBox.Show("You must specify the exact first and last element of the entity you want to find.");
}
}
public void deleteRow(String firstName, String lastName)
{
var context = new FabrikamEntities();
var query =
from c in context.Students
where c.FirstName == firstNameTB.Text && c.LastName == lastNameTB.Text
select c;
if (!String.IsNullOrEmpty(firstNameTB.Text) && !String.IsNullOrEmpty(lastNameTB.Text))
{
foreach (var Student in query)
{
context.Students.Remove(Student);
}
context.SaveChanges();
}
else
{
MessageBox.Show("You must specify the exact FirstName and LastName of the entity you'd like to delete.");
}
}