20240801_FJEQ_upperpc/FujianEarthquake_seabed/FujianEarthquake/Common/CSVDownload.cs

using FujianEarthquake.Models;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media;

namespace FujianEarthquake.Common
{
    public class CSVDownload
    {
        /// <summary>
        /// Create target file
        /// </summary>
        /// <param name="folder">folder</param>
        /// <param name="fileName">folder name</param>
        /// <param name="fileExtension">file extension</param>
        /// <returns>file path</returns>
        public static string CreateFile(string folder, string fileName, string fileExtension)
        {
            FileStream fs = null;
            string filePath = folder + fileName + "." + fileExtension;
            try
            {
                if (!Directory.Exists(folder))
                {
                    Directory.CreateDirectory(folder);
                }
                fs = File.Create(filePath);
            }
            catch (Exception ex)
            { }
            finally
            {
                if (fs != null)
                {
                    fs.Dispose();
                }
            }
            return filePath;
        }


        #region LogRecord
        /// <summary>
        /// 获取类的属性集合（以便生成CSV文件的所有Column标题）
        /// </summary>
        /// <returns></returns>
        public static PropertyInfo[] GetLogRecordPropertyInfoArray()
        {
            PropertyInfo[] props = null;
            try
            {
                Type type = typeof(LogRecordModel);
                object obj = Activator.CreateInstance(type);
                props = type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
            }
            catch (Exception ex)
            { }
            return props;
        }


        /// <summary>
        /// Save the List data to CSV file
        /// </summary>
        /// <param name="BaseStationList">data source</param>
        /// <param name="filePath">file path</param>
        /// <returns>success flag</returns>
        public static bool SaveLogRecordDataToCSVFile(ObservableCollection<LogRecordModel> LogRecordList, string filePath)
        {
            bool successFlag = true;

            StringBuilder strColumn = new StringBuilder();
            StringBuilder strValue = new StringBuilder();
            StreamWriter sw = null;
            PropertyInfo[] props = GetLogRecordPropertyInfoArray();

            try
            {
                sw = new StreamWriter(filePath);
                for (int i = 0; i < props.Length; i++)
                {
                    strColumn.Append(props[i].Name);
                    strColumn.Append(",");
                }
                strColumn.Remove(strColumn.Length - 1, 1);
                sw.WriteLine(strColumn);    //write the column name

                for (int i = 0; i < LogRecordList.Count; i++)
                {
                    strValue.Remove(0, strValue.Length); //clear the temp row value
                    strValue.Append(LogRecordList[i].Index);
                    strValue.Append(",");
                    strValue.Append(LogRecordList[i].RecordTime);
                    strValue.Append(",");
                    strValue.Append(LogRecordList[i].Device_Name);
                    strValue.Append(",");
                    strValue.Append(LogRecordList[i].Operation_Type);
                    strValue.Append(",");
                    strValue.Append(LogRecordList[i].Record);

                    sw.WriteLine(strValue); //write the row value
                }
            }
            catch (Exception ex)
            {
                successFlag = false;
            }
            finally
            {
                if (sw != null)
                {
                    sw.Dispose();
                }
            }

            return successFlag;
        }
        #endregion

    }
}