/// <summary>
/// 根据物理主码查询
/// </summary>
/// <param name="id">id</param>
/// <returns>结果</returns>
public LanCate SELECT_BY_ID(long id)
{
try
{
LanCate rd = new LanCate();
S_lancate temp = (from row in db.S_lancate where row.id == id select row).First();
rd.Id = temp.id;
rd.Name = temp.name;
rd.Sort = temp.sort;
rd.Isused = temp.isused;
return(rd);
}
catch
{
return(null);
}
}
/// <summary>
/// 插入函数
/// </summary>
/// <param name="info">Model</param>
/// <returns>影响数据物理ID</returns>
public long INSERT(LanCate info)
{
try
{
S_lancate temp = new S_lancate();
//temp.id = info.Id;
temp.name = info.Name;
temp.sort = info.Sort;
temp.isused = info.Isused;
Table <S_lancate> table = db.GetTable <S_lancate>();
table.InsertOnSubmit(temp);
db.SubmitChanges();
return(temp.id);
}
catch
{
return(-2);
}
}
/// <summary>
/// 更新函数
/// </summary>
/// <param name="info">Model</param>
/// <returns>影响数据物理ID，已存在逻辑主码返回-1</returns>
public long UPDATE(LanCate info)
{
try
{
S_lancate temp = new S_lancate();
Table <S_lancate> table = db.GetTable <S_lancate>();
temp = (from row in db.S_lancate where row.id == info.Id select row).First();
//temp.id = info.Id;
temp.name = info.Name;
temp.sort = info.Sort;
temp.isused = info.Isused;
db.SubmitChanges();
return(temp.id);
}
catch
{
return(-2);
}
}
/// <summary>
/// 根据使用状态查询
/// </summary>
/// <param name="isused">是否使用</param>
/// <returns>结果列表</returns>
public IList <LanCate> SELECT_BY_ISUSED(bool isused)
{
try
{
IList <LanCate> result = new List <LanCate>();
var temp = (from row in db.S_lancate where row.isused == isused orderby row.sort ascending select row).GetEnumerator();
while (temp.MoveNext())
{
LanCate element = new LanCate();
element.Id = temp.Current.id;
element.Name = temp.Current.name;
element.Sort = temp.Current.sort;
element.Isused = temp.Current.isused;
result.Add(element);
}
return(result);
}
catch
{
return(null);
}
}
