public static Employee ConvertEmpToEntityFormat(T_Employee t_emp)
{
try
{
Employee empRes = new Employee();
empRes.Id = t_emp.Id;
empRes.Name = t_emp.Name;
empRes.Address = t_emp.Address;
empRes.Email = t_emp.Email;
empRes.Salary = t_emp.Salary;
return(empRes);
}
catch
{
return(null);
}
}
public static T_Employee ConvertEmpToDbFormat(Employee emp)
{
try
{
T_Employee empRes = new T_Employee();
empRes.Id = emp.Id;
empRes.Name = emp.Name;
empRes.Address = emp.Address;
empRes.Email = emp.Email;
empRes.Salary = emp.Salary;
return(empRes);
}
catch
{
return(null);
}
}
//直接编辑，不查询
public void Edit2Employee(Employee emp)
{
using (dataContext = new EmployeeDataBaseEntities())
{
T_Employee empInDb = Common.ConvertEmpToDbFormat(emp);
//获取代理对象类的状态为Detaceh
System.Data.Entity.Infrastructure.DbEntityEntry entry = dataContext.Entry(empInDb);
//1、将代理类的状态修改成 Unchanged 2、将代理类中的需要更新的字段的IsModified修改成true
entry.State = System.Data.Entity.EntityState.Unchanged;
entry.Property("Name").IsModified = true;
entry.Property("Address").IsModified = true;
entry.Property("Email").IsModified = true;
entry.Property("Salary").IsModified = true;
//解决对一个或多个实体验证失败的方法：关闭EF的实体合法性检查
dataContext.Configuration.ValidateOnSaveEnabled = false;
//保存
dataContext.SaveChanges();
}
}
