点滴积累【C#】委托编号大排行(自动生成)

委托编号大排行（自动生成）:

效果：

描述：在本表中自动生成编号，自动生成的编号为所有表中的排序。例如：在添加页面中生成的委托编号未00048，那么在别的表中生成的编号为00049。

调用：

protected void Page_Load(object sender, EventArgs e)
        {
            Response.Expires = -1;
            if (!IsPostBack)
            {
             
                if (ActionType == CommonEnum.ActionLevel.Write)
                {
                    
                    tbwtbh.Text = Getwtbh();
                    
                }
            }
        }

protected string Getwtbh()
        {
            string Getwtbh = CommonFunction.GetByMenuCode(ThisPositionID, ApplicationInfo.SerialNumWt, "qjlzhuan_lydj", "wtbh");
            return Getwtbh;
        }

函数：

#region 委托编号大排行

        public static string GetByMenuCode(string ThisPositionID, int Digit, string TableName, string RowName)
        {
            string GetCode = string.Empty;
            string Title = string.Empty;
            string sql = string.Format(@"SELECT Max(RIGHT({0}," + Digit + ")) as RowName FROM {1}; " +
                                        "SELECT LEFT(Max({2}),LEN(Max({2}))-" + Digit + ") as RowTitle FROM {3}", "wtbhCode", "wtbh", RowName, TableName);
            DbCommand sqlCommand = ERPDataBase.ERPDB.GetSqlStringCommand(sql);
            DataSet dsData = new DataSet();
            ERPDataBase.ERPDB.LoadDataSet(sqlCommand, dsData, new string[] { "data", "Title" });
            if (dsData.Tables["data"].Rows.Count > 0)
            {
                DataRow row = dsData.Tables["data"].Rows[0];
                if (row["RowName"] == DBNull.Value)
                {
                    GetCode = "1";
                    GetCode = GetCode.PadLeft(Digit, '0');
                }
                else
                {
                    string second = row["RowName"].ToString();
                    GetCode = second.PadLeft(Digit, '0');
                }
            }
            if (dsData.Tables["Title"].Rows.Count > 0)
            {
                DataRow row = dsData.Tables["Title"].Rows[0];
                if (row["RowTitle"] != DBNull.Value)
                {
                    Title = row["RowTitle"].ToString();
                }
            }
            return Title + GetCode;
        }

        public static bool RepeatExperimnetID(string wtbh, int Digit)
        {
            bool ISRepeat = false;
            StringBuilder strSql = new StringBuilder();
            strSql.Append(string.Format("SELECT RIGHT(wtbhCode," + Digit + ") AS wtbhCode FROM wtbh WHERE RIGHT(wtbhCode," + Digit + ")='{0}'", wtbh.Substring(wtbh.Length - Digit, Digit)));
            DbCommand sqlStringCommand = ERPDataBase.ERPDB.GetSqlStringCommand(strSql.ToString());
            DataSet dsData = new DataSet();
            ERPDataBase.ERPDB.LoadDataSet(sqlStringCommand, dsData, "data");
            if (dsData.Tables["data"].Rows.Count > 0)
            {
                ISRepeat = true;
            }
            return ISRepeat;
        }

        public static void UpdateWtCode(string wtbh, int Digit)
        {
            wtbh = (Convert.ToInt32(wtbh.Substring(wtbh.Length - Digit, Digit)) + 1).ToString().PadLeft(Digit, '0');
            string sql = "UPDATE wtbh SET wtbhCode=@wtbhCode";
            DbCommand sqlCommand = ERPDataBase.ERPDB.GetSqlStringCommand(sql);
            ERPDataBase.ERPDB.AddInParameter(sqlCommand, "@wtbhCode", DbType.String, wtbh.Substring(wtbh.Length - Digit, Digit));
            ERPDataBase.ERPDB.ExecuteNonQuery(sqlCommand);
        }

        #endregion