DataTable转CSV

 1         /// <summary>
 2         /// 将DataTable转换成CSV文件
 3         /// </summary>
 4         /// <param name="dt">DataTable</param>
 5         /// <param name="filePath">文件路径</param>
 6         public static void SaveCSV(DataTable dt, string filePath)
 7         {
 8             FileStream fs = new FileStream(filePath + dt.TableName + ".csv", System.IO.FileMode.Create, System.IO.FileAccess.Write);
 9             StreamWriter sw = new StreamWriter(fs, System.Text.Encoding.Default);
10             string data = "";
11 
12             //写出列名称
13             for (int i = 0; i < dt.Columns.Count; i++)
14             {
15                 data += dt.Columns[i].ColumnName.ToString();
16                 if (i < dt.Columns.Count - 1)
17                 {
18                     data += ",";
19                 }
20             }
21             sw.WriteLine(data);
22 
23             //写出各行数据
24             for (int i = 0; i < dt.Rows.Count; i++)
25             {
26                 data = "";
27                 for (int j = 0; j < dt.Columns.Count; j++)
28                 {
29                     data += dt.Rows[i][j].ToString();
30                     if (j < dt.Columns.Count - 1)
31                     {
32                         data += ",";
33                     }
34                 }
35                 sw.WriteLine(data);
36             }
37             sw.Close();
38             fs.Close();
39         }