C# winform通过按钮上移下移 解决了datasource绑定问题

事件代码：

private void btn_frmDicType_MoveUp_Click(object sender, EventArgs e)
{

int lstLength = this.lst_frmDic_Type_Property.Items.Count;
int ilstSelect = this.lst_frmDic_Type_Property.SelectedIndex;
if (ilstSelect == 0)
{
MessageBox.Show("已在当前最顶端,无法再移动...");
return;
}
else if (lstLength > ilstSelect && ilstSelect > 0)
{
DataTable dt = (DataTable)lst_frmDic_Type_Property.DataSource;
DataTable dtCopy = new DataTable();
dtCopy.Clear();
dtCopy = dt.Copy();//拷贝dt
dtCopy.Rows[ilstSelect].Delete();
dtCopy.Rows[ilstSelect - 1].Delete();

DataRow drClone1 = dtCopy.NewRow();
DataRow drClone2 = dtCopy.NewRow();

drClone1.ItemArray = dt.Rows[ilstSelect].ItemArray;//需要上移的
drClone2.ItemArray = dt.Rows[ilstSelect - 1].ItemArray;//被移到下面
dtCopy.Rows.InsertAt(drClone1, ilstSelect - 1);
dtCopy.Rows.InsertAt(drClone2, ilstSelect);

//删除未彻底删除的2行,需要使用datatable.AcceptChanges()方法来提交修改.
dtCopy.AcceptChanges();

lst_frmDic_Type_Property.DataSource = dtCopy;
this.lst_frmDic_Type_Property.SelectedIndex = ilstSelect - 1;
//操作数据库，修改顺序号

//得到id号
int id1 = Convert.ToInt32(dt.Rows[ilstSelect]["ID"].ToString());
int id2 = Convert.ToInt32(dt.Rows[ilstSelect - 1]["ID"].ToString());
// 根据id号，得到顺序号
int order1 = Convert.ToInt32(frmDic_BLL.FrmDic_Dic_GetDICOrderById(id1).Tables[0].Rows[0]["DICOrder"]);
int order2 = Convert.ToInt32(frmDic_BLL.FrmDic_Dic_GetDICOrderById(id2).Tables[0].Rows[0]["DICOrder"]);
//根据id号，修改顺序号
frmDic_BLL.FrmDic_Dic_UpdataPropertyDICOrderByID(id1, order2);
frmDic_BLL.FrmDic_Dic_UpdataPropertyDICOrderByID(id2, order1);
}
else
{
return;
}
}

private void btn_frmDicType_MoveDown_Click(object sender, EventArgs e)
{
int lstLength = this.lst_frmDic_Type_Property.Items.Count;
int ilstSelect = this.lst_frmDic_Type_Property.SelectedIndex;
if (ilstSelect == lstLength - 1)
{
MessageBox.Show("已在当前最末端,无法再移动...");
return;
}
else if (lstLength - 1 > ilstSelect && ilstSelect >= 0)
{
DataTable dt = (DataTable)lst_frmDic_Type_Property.DataSource;
DataTable dtCopy = new DataTable();
dtCopy.Clear();
dtCopy = dt.Copy();//拷贝dt

/////////
// delete和remove
//Delete的使用是 datatable.Rows[i].Delete();
//Remove的使用是datatable.Rows.Remove(datatable.Rows[i]);
//这两个的区别是,使用delete后,只是该行被标记为deleted,但是还存在,用Rows.Count来获取行数时,还是删除之前的行数.需要使用datatable.AcceptChanges()方法来提交修改.

dtCopy.Rows[ilstSelect].Delete();
dtCopy.Rows[ilstSelect + 1].Delete();
DataRow drClone1 = dtCopy.NewRow();
DataRow drClone2 = dtCopy.NewRow();

drClone1.ItemArray = dt.Rows[ilstSelect].ItemArray;//需要下移的
drClone2.ItemArray = dt.Rows[ilstSelect + 1].ItemArray;//被移到上面
dtCopy.Rows.InsertAt(drClone1, ilstSelect + 1);
dtCopy.Rows.InsertAt(drClone2, ilstSelect);
//删除未彻底删除的2行,需要使用datatable.AcceptChanges()方法来提交修改.
dtCopy.AcceptChanges();

lst_frmDic_Type_Property.DataSource = dtCopy;
this.lst_frmDic_Type_Property.SelectedIndex = ilstSelect + 1;
//操作数据库，修改顺序号

//得到id号
int id1 = Convert.ToInt32(dt.Rows[ilstSelect]["ID"].ToString());
int id2 = Convert.ToInt32(dt.Rows[ilstSelect + 1]["ID"].ToString());
// 根据id号，得到顺序号
int order1 = Convert.ToInt32(frmDic_BLL.FrmDic_Dic_GetDICOrderById(id1).Tables[0].Rows[0]["DICOrder"]);
int order2 = Convert.ToInt32(frmDic_BLL.FrmDic_Dic_GetDICOrderById(id2).Tables[0].Rows[0]["DICOrder"]);
//根据id号，修改顺序号
frmDic_BLL.FrmDic_Dic_UpdataPropertyDICOrderByID(id1, order2);
frmDic_BLL.FrmDic_Dic_UpdataPropertyDICOrderByID(id2, order1);
}
else
{
return;
}
}

BLL：

// 根据ID,返回Dic表的顺序号
public DataSet FrmDic_Dic_GetDICOrderById(int strID)
{
return (FrmDic_DAL.FrmDic_Dic_GetDICOrderById(strID));
}
// 根据ID,更新Dic表的顺序号
public void FrmDic_Dic_UpdataPropertyDICOrderByID(int strID, int DICOrder)
{
FrmDic_DAL.FrmDic_Dic_UpdataPropertyDICOrderByID(strID, DICOrder);
}

DAL：

　　

#region "根据ID,更新Dic表的顺序号"
/// <summary>
/// 根据ID,更新Dic表的顺序号
/// </summary>
/// <param name="strID">被修改的id</param>
/// <param name="DICOrder">序号</param>
public static void FrmDic_Dic_UpdataPropertyDICOrderByID(int strID, int DICOrder)
{
string sqlCommand = "FrmDic_Dic_UpdataPropertyDICOrderByID";

SqlParameter[] param ={
new SqlParameter("@strID",SqlDbType.Int),
new SqlParameter("@DICOrder",SqlDbType.Int),
};
param[0].Value = strID;
param[1].Value = DICOrder;
SqlHelper.ExecuteNonQuery(GHGD.Conn.Conn.SqlConn, CommandType.StoredProcedure, sqlCommand, param);
}
#endregion

#region "根据ID,返回Dic表的顺序号"
/// <summary>
/// 根据ID,返回Dic表的顺序号
/// </summary>
/// <param name="strID"></param>
public static DataSet FrmDic_Dic_GetDICOrderById(int strID)
{
string sqlCommand = "FrmDic_Dic_GetDICOrderById";
DataSet ds = new DataSet();
SqlParameter[] param ={
new SqlParameter("@id",strID),
};
//param[0].Value = strID;

SqlHelper.ExecuteDataset(GHGD.Conn.Conn.SqlConn, ds, "FrmDic_Dic_GetDICOrderById", CommandType.StoredProcedure, sqlCommand, param);

if (ds.Tables[0].Rows.Count != 0)
{
ds.Dispose();
return ds;
}
else
{
return null;
}

}
#endregion

存储过程：

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

ALTER procedure [dbo].[FrmDic_Dic_UpdataPropertyDICOrderByID]
(@strID int,@DICOrder int)
as
begin
update Dic set DICOrder=@DICOrder where ID=@strID
end

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

ALTER PROCEDURE [dbo].[FrmDic_Dic_GetDICOrderById]
(@id int)
AS
BEGIN
SET NOCOUNT ON;
select DICOrder from Dic where ID = @id
END