初始化版本

tongxin/NetWorkHelper/ITool/CsvManager.cs

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+/********************************************************************
+ * *
+ * * Copyright (C) 2013-2018 uiskin.cn
+ * * 作者： BinGoo QQ：315567586 
+ * * 请尊重作者劳动成果，请保留以上作者信息，禁止用于商业活动。
+ * *
+ * * 创建时间：2017-09-18
+ * * 说明：Csv文件操作类
+ * *
+********************************************************************/
+using System.Data;
+using System.IO;
+using System.Text;
+
+namespace NetWorkHelper.ITool
+{
+    class CsvManager
+    {
+        /// <summary>  
+        /// 导出报表为Csv  
+        /// </summary>  
+        /// <param name="dt">DataTable</param>  
+        /// <param name="strFilePath">物理路径</param>  
+        /// <param name="tableheader">表头</param>  
+        /// <param name="columname">字段标题,逗号分隔</param>  
+        public static bool DataTable2Csv(DataTable dt, string strFilePath, string tableheader, string columname)
+        {
+            try
+            {
+                string strBufferLine;
+                StreamWriter strmWriterObj = new StreamWriter(strFilePath, false, Encoding.UTF8);
+                strmWriterObj.WriteLine(tableheader);
+                strmWriterObj.WriteLine(columname);
+                for (int i = 0; i < dt.Rows.Count; i++)
+                {
+                    strBufferLine = "";
+                    for (int j = 0; j < dt.Columns.Count; j++)
+                    {
+                        if (j > 0)
+                            strBufferLine += ",";
+                        strBufferLine += dt.Rows[i][j].ToString();
+                    }
+                    strmWriterObj.WriteLine(strBufferLine);
+                }
+                strmWriterObj.Close();
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
+        /// <summary>  
+        /// 将Csv读入DataTable  
+        /// </summary>  
+        /// <param name="filePath">csv文件路径</param>  
+        /// <param name="n">表示第n行是字段title,第n+1行是记录开始</param>  
+        /// <param name="dataTable">要导出的dataTable</param>  
+        public static DataTable Csv2Dt(string filePath, int n, DataTable dataTable)
+        {
+            StreamReader reader = new StreamReader(filePath, Encoding.UTF8, false);
+            int i, m = 0;
+            while (reader.Peek() > 0)
+            {
+                m = m + 1;
+                string str = reader.ReadLine();
+                if (string.IsNullOrEmpty(str))
+                {
+                    break;
+                }
+                if (m >= n + 1)
+                {
+                    string[] split = str.Split(',');
+
+                    DataRow dr = dataTable.NewRow();
+                    for (i = 0; i < split.Length; i++)
+                    {
+                        dr[i] = split[i];
+                    }
+                    dataTable.Rows.Add(dr);
+                }
+            }
+            return dataTable;
+        }
+    }
+}