public List<Rule> ValidateEmployee(Employee employee)
{
var rule = new CustomRule<Employee>(e=>e.LoginId, LoginIdShouldBeUnique)
{
PropertyName = "LoginId",
ScreenName = "Login Id"
};
return employee.ValidateRules(rule);
}
private string LoginIdShouldBeUnique(Employee employee)
{
var found =
Database.RetrieveAll<Employee>(e=>e.LoginId==employee.LoginId)
.Find(e => e.Id != employee.Id);
if (found != null)
{
return "Login id already exists!";
}
return string.Empty;
}