public void Delete<T>(T t) where T : class
{
using (codeFirstEntities context = new codeFirstEntities())
{
context.Set<T>().Remove(t);
}
}
//得到单个实体信息
public T GetInfo<T>(Expression<Func<T, bool>> express) where T : class
{
using (codeFirstEntities context = new codeFirstEntities())
{
return context.Set<T>().FirstOrDefault<T>(express);
}
}
//得到单个实体信息
public List<T> GetList<T>(Expression<Func<T, bool>> express, int PageIndex, int PageSize) where T : class
{
using (codeFirstEntities context = new codeFirstEntities())
{
return context.Set<T>().Where(express).Skip(PageSize * PageSize).Take(PageSize).ToList();
}
}
public T Insert<T>(T t) where T : class
{
using (codeFirstEntities entity = new codeFirstEntities())
{
entity.Set<T>().Add(t);
entity.SaveChanges();
return t;
}
}