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  • C# 读取CSV格式数据 读取为DataTable类型

    先贴代码:

    using System.Data;
    using System.Data.OleDb;

     static void Main(string[] args)
            {
                var strpath = System.Environment.CurrentDirectory + "\";
                var filename = "ss.csv";
                DataSet dataset = GetCsvData(strpath, filename);
                if (dataset.Tables.Count > 0)
                {
                    foreach (DataTable itemTable in dataset.Tables)
                    {
                        string table_sheetName=itemTable.TableName;//
    
                        DataTable datNew = itemTable.DefaultView.ToTable(false, new string[] {//选择列
                            "列名","ProjectName"
                        });
                    }
                }
            }
    
    
            static DataSet GetCsvData(string fileNameUrl, string fileName)
            {
                OleDbConnection OleCon = new OleDbConnection();
                OleDbCommand OleCmd = new OleDbCommand();
                OleDbDataAdapter OleDa = new OleDbDataAdapter();
    
                DataSet csvData = new DataSet();
                OleCon.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + fileNameUrl +
                    ";Extended Properties='Text;FMT=Delimited;HDR=YES;'";
                OleCon.Open();
                OleCmd.Connection = OleCon;
                OleCmd.CommandText = "select * From " + fileName;
                OleDa.SelectCommand = OleCmd;
                try
                {
                    OleDa.Fill(csvData, "CsvFileVCQData");
                    return csvData;
                }
                catch
                {
                    return csvData;
                }
                finally
                {
                    OleCon.Close();
                    OleCmd.Dispose();
                    OleDa.Dispose();
                    OleCon.Dispose();
                }
            }
    ---------------------------
    2018.4.19更新
    在csv中的数据如果有"(双引号会出错)这是由于在读的时候会将数据读为“data”这样 而如果其中含有双引号的话“da""ta” 很明显会出错,解决这个问题可以将双引号改为两个单引号''
    MrNou
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  • 原文地址:https://www.cnblogs.com/yangsirc/p/8624005.html
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