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if(mymember.isuser(uid))
{
DBnameEntities db;
db = new DBnameEntities();
var objA = db.A.Where(t => t.uid == uid).FirstOrDefault();
...
db.SaveChanges();
db = new DBnameEntities();
var objB = db.B.Where(t => t.uid == uid).FirstOrDefault();
...
db.SaveChanges();
db = new DBnameEntities();
var objC = db.C.Where(t => t.uid == uid).FirstOrDefault();
...
db.SaveChanges();
db = new DBnameEntities();
var objD = db.D.Where(t => t.uid == uid).FirstOrDefault();
...
db.SaveChanges();
}
.........
数据插入也差不多做法,这里省
if(mymember.isuser(uid))
{
using(DBnameEntities db= new DBnameEntities())
{
var objA = db.A.SingleOrDefault(t => t.uid == uid);
...
var objB = db.B.SingleOrDefault(t => t.uid == uid);
...
var objC = db.C.SingleOrDefault(t => t.uid == uid);
...
var objD = db.D.SingleOrDefault(t => t.uid == uid);
...
db.SaveChanges();
}
}