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技术社区[云栖]
Linq中更新操作的思路
我们更新的时候可以写一个更新的方法
public void ModifyTeacher(String num,String name.int age...........................)
可以传很多参数。
不过这样可读性比较差。我们可以这样：
/// <summary>
/// 修改教师信息
/// </summary>
/// <param name="newTeacher"></param>
public void ModifyTeacher(M_Teacher newTeacher)
{
try
{
M_Teacher oldTeacher = ReadModel(newTeacher.Num);
oldTeacher.Name = newTeacher.Name;
oldTeacher.Gender = newTeacher.Gender;
oldTeacher.Type = newTeacher.Type;
oldTeacher.CollegeNum = newTeacher.CollegeNum;
oldTeacher.Birth = newTeacher.Birth;
oldTeacher.idcard = newTeacher.idcard;
oldTeacher.rollyear = newTeacher.rollyear;
dc.SubmitChanges();
}
catch
{ }
}
当然，我们可以把更新每一个字段都写一个方法。
最后更新：2017-04-02 22:16:32