public IHttpActionResult PutStudent(int id, Student student)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (id != student.Id)
{
return(BadRequest());
}
db.Entry(student).State = EntityState.Modified;
try
{
db.SaveChanges();
}
catch (DbUpdateConcurrencyException)
{
if (!StudentExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(StatusCode(HttpStatusCode.NoContent));
}
private static void TestValidatonAll()
{
using (var context = new InstituteEntities())
{
//create entity
var student = context.Students.Create();
student.StudentLastName = "Siddiqi";
student.GradePointAverage = 5;
var department = context.Departments.Create();
department.DepartmentName = "Electrical Engineering";
//add it to context
context.Students.Add(student);
context.Departments.Add(department);
try
{
//save changes
context.SaveChanges();
}
catch (DbEntityValidationException validationException)
{
//Console.WriteLine(validationException.)
string validationErrorMessage =
DbEntityValidationMessageParser.GetErrorMessage(validationException);
Console.WriteLine(validationErrorMessage);
}
}
}