public List <T> Query <T>(string sql, params object[] parameterValues)
{
using (var ct = new DS_AreaDataContext(DbHelperSQL.Connection))
{
return(ct.ExecuteQuery <T>(sql, parameterValues).ToList());
}
}
/// <summary>
/// 排序
/// </summary>
/// <param name="ID"></param>
/// <param name="IsUp"></param>
public void Sort(int ID, bool IsUp)
{
using (var ct = new DS_AreaDataContext(DbHelperSQL.Connection))
{
var md = ct.DS_Area.Single(a => a.ID == ID);
ct.ExecuteCommand("update DS_Area set px=(select RowNumber from (select (ROW_NUMBER() OVER (ORDER BY px)) AS RowNumber,id from DS_Area where ParentID={0}) as p2 where id=DS_Area.id) where ParentID={0}", md.ParentID);
if (IsUp)
{
DS_Area p = ct.DS_Area.Single(a => a.ID == ID);
DS_Area p1;
if (p.Px > 1)
{
p1 = ct.DS_Area.Single(a => a.Px == (p.Px - 1) && a.ParentID == md.ParentID);
p.Px--;
p1.Px++;
}
}
else
{
DS_Area p = ct.DS_Area.Single(a => a.ID == ID);
DS_Area p1;
if (p.Px < ct.DS_Area.Where(a => a.ParentID == md.ParentID).Count())
{
p1 = ct.DS_Area.Single(a => a.Px == (p.Px + 1) && a.ParentID == md.ParentID);
p.Px++;
p1.Px--;
}
}
ct.SubmitChanges();
}
}
public DS_Area GetSingle(int ID)
{
using (var ct = new DS_AreaDataContext(DbHelperSQL.Connection))
{
return(ct.DS_Area.Single(a => a.ID == ID));
}
}
private void delSub(List <DS_Area> list)
{
using (var ct = new DS_AreaDataContext(DbHelperSQL.Connection))
{
ct.DS_Area.DeleteAllOnSubmit(list);
ct.SubmitChanges();
}
}
public void Update(DS_Area Area)
{
using (var ct = new DS_AreaDataContext(DbHelperSQL.Connection))
{
ct.DS_Area.Attach(Area, true);
ct.SubmitChanges();
}
}
public void Add(DS_Area Area)
{
using (var ct = new DS_AreaDataContext(DbHelperSQL.Connection))
{
ct.DS_Area.InsertOnSubmit(Area);
ct.SubmitChanges();
}
}
public List <DS_Area> Query(string condition, string orderby, params object[] param)
{
using (var ct = new DS_AreaDataContext(DbHelperSQL.Connection))
{
IQueryable <DS_Area> AreaList = ct.DS_Area;
if (!string.IsNullOrEmpty(condition))
{
AreaList = AreaList.Where(condition, param);
}
if (!string.IsNullOrEmpty(orderby))
{
AreaList = AreaList.OrderBy(orderby);
}
return(AreaList.ToList());
}
}
public List <DS_Area> Query(string condition, string orderby, int startIndex, int pageSize, ref int pageCount, params object[] param)
{
using (var ct = new DS_AreaDataContext(DbHelperSQL.Connection))
{
IQueryable <DS_Area> AreaList = ct.DS_Area;
if (!string.IsNullOrEmpty(condition))
{
AreaList = AreaList.Where(condition, param);
}
if (!string.IsNullOrEmpty(orderby))
{
AreaList = AreaList.OrderBy(orderby);
}
pageCount = AreaList.Count();
return(AreaList.Skip(startIndex).Take(pageSize).ToList());
}
}
public void Delete(int ID)
{
using (var ct = new DS_AreaDataContext(DbHelperSQL.Connection))
{
var st = ct.DS_Area.Single(a => a.ID == ID);
var list = ct.DS_Area.Where(a => a.ParentID.Equals(st.ID));
if (list.Count() > 0)
{
foreach (var item in list)
{
Delete(item.ID);
}
}
ct.DS_Area.DeleteOnSubmit(st);
ct.SubmitChanges();
}
}
