擷取伺服器檔案夾下檔案清單

            //選擇的時間
            string strDateNow;
            strDateNow = Calendar1.SelectedDate.ToShortDateString();
            //時間所對應的檔案名稱
            string strRelFileName = "yujing-" + strDateNow + ".rel";
            string strJpgFileName = "災害預警圖-" + strDateNow + ".jpg";
            //是否存在檔案
            bool isExistRelFile = false;
            bool isExistJpgFile = false;

            //提示資訊
            System.Text.StringBuilder strMsg = new System.Text.StringBuilder("查詢資訊：<hr color=red>");

            // 檔案目錄和名稱
            string strCurDir,FileName,FileExt;
            //初始化時,預設為當前頁面所在的目錄
            strCurDir = Server.MapPath("Data/HistoryMap/");

            FileInfo fi;
            DirectoryInfo dir;
            //針對目前的目錄建立目錄引用對象
            DirectoryInfo dirInfo = new DirectoryInfo(strCurDir);

            //迴圈判斷指定日期的檔案
            findFile#region findFile
            foreach(FileSystemInfo fsi in dirInfo.GetFileSystemInfos())
            {
                FileName = "";
                FileExt = "";
                if(fsi is FileInfo)
                {
                    fi = (FileInfo)fsi;
                    //取得檔案名稱
                    FileName = fi.Name;
                    //取得檔案的副檔名
                    FileExt = fi.Extension;
                    if(FileExt == ".rel")
                    {
                        if(FileName == strRelFileName)
                        {
                            isExistRelFile = true;
                        }
                    }
                    if(FileExt == ".jpg")
                    {
                        if(FileName == strJpgFileName)
                        {
                            isExistJpgFile = true;
                        }
                    }

                }
                else//否則是目錄
                {
                    dir = (DirectoryInfo)fsi;
                    //取得目錄名
                    FileName = dir.Name;
                    //設定檔案的副檔名為"檔案夾"
                    FileExt = "檔案夾";
                }
            }
            #endregion
            //如果兩個檔案都存在
            if(isExistRelFile && isExistJpgFile)
            {
                strMsg.Append(strDateNow + "的預警圖查詢成功！");
                strState.Text = strMsg.ToString();
                //對地圖視窗進行控制，使之顯示曆史圖
                showHistoryMap#region showHistoryMap
                //代碼待添
                #endregion
            }
            else
            {

                strMsg.Append("沒有找到" + strDateNow + "的預警圖！");
                strState.Text = strMsg.ToString();            
            }
        }