学习资料搜集--从后台取数据填充下拉框

数据层
 

 1public DataSet GetAllQuoter()
 2        {
 3            StringBuilder commandText = new StringBuilder("SELECT distinct  ReportMain.FromName FROM ReportMain ");
 4            DataSet ds = new DataSet();
 5                SqlConnection Conn = null;
 6            try
 7            {
 8                if (Connection==null)
 9                {
10                    Conn = new SqlConnection(strConn);
11                    Conn.Open();
12                }
13                else
14                    Conn = (SqlConnection)Connection;
15                SqlCommand DSCmd = new SqlCommand(commandText.ToString(),Conn);
16                if (Transaction!=null)
17                    DSCmd.Transaction = (SqlTransaction)Transaction;
18
19                                SqlDataAdapter DBAdopter = new System.Data.SqlClient.SqlDataAdapter(DSCmd);
20                DBAdopter.Fill(ds);
21            }
22            catch (Exception e)
23            {
24                throw new Exception(e.Message);
25            }
26            finally
27            {
28                if (Conn!=null&&Connection==null) Conn.Close();
29            }
30            return ds;
31        }
32
33

BPO

 1/**//// <summary>
 2        /// 取得所有的报价人
 3        /// </summary>
 4        /// <returns></returns>
 5        [WebMethod(EnableSession = true)]
 6        public string GetAllQuoters()
 7        {
 8               DBLayer.ReportMain report = new ReportMain();
 9               DataSet ds = report.GetAllQuoter();
10               DataTable dt = ds.Tables[0];
11               string str = "|";
12              foreach(DataRow dr in dt.Rows)
13               {
14                     str = str + dr[0].ToString()+"|";
15               }
16               str = str.Substring(0,str.Length-1);
17               return str;
18        }
19

 前端HTC

 1function CallGetAllQuoters()
 2{
 3    this.ServiceHandle=eval(ServiceID);
 4    if(ServiceHandle!=null)
 5    {
 6        ServiceHandle.useService(theBPOName+".asmx?WSDL",theBPOName+"Service");
 7        var srv=eval("ServiceHandle."+theBPOName+"Service");
 8        ObjectGetAllQuotersTask.CallID=srv.callService("GetAllQuoters");
 9    }
10}
11
12function DoResultGetAllQuoters()
13{
14    this.DoResult = function(result)
15    {
16        if(result.error==false)
17        {
18            var piArray = result.value.split("|");
19　　            for(var i=0;i<piArray.length;i++)
20　　            {
21　　　　              e = document.createElement("OPTION")
22                      e.text = piArray[i];
23                      e.value = piArray[i];
24                      Form1.FromNameEdit0.add(e);
25　　            }
26
27        }
28    }
29}