Question

此方法不会抛出异常，也不会从它读入DataTable的csv文件中返回行。我不知道我做错了什么。

非常感谢任何帮助。

public string ImportCsvFile(string filePath)
    {
        FileInfo file = new FileInfo(filePath);
        //string connString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\"" + file.DirectoryName + "\" Extended Properties='text;HDR=Yes;FMT=Delimited(,)';";
        string connString = string.Format(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};" + @" Extended Properties={1}", file.DirectoryName, "'Text;HDR=YES;FMT=CSVDelimited'");
        using (OleDbConnection con = new OleDbConnection(connString))
        {
            OleDbCommand cmd = new OleDbCommand(string.Format("SELECT * FROM [{0}]", file.Name), con);
            // Using a DataTable to process the data
            try
            {
                con.Open();
                ds = new DataTable("MyTable");
                OleDbDataAdapter adp = new OleDbDataAdapter(cmd);
                adp.Fill(ds);
                foreach (DataRow row in ds.Rows)
                {
                    System.Diagnostics.Debug.WriteLine(row.ToString());
                }
            }
            catch (Exception error)
            {
                String errorString;
                errorString = "Error occurred while importing data from source file." + System.Environment.NewLine +
                "Error Message: " + error.Message + System.Environment.NewLine +
                "Stack Trace: " + error.StackTrace;
                return errorString;
            }                    
        }
        return "File imported to DataTable";
    }

Answer 1

事实证明，这段代码很好。这是问题的csv文件。有某种类型的文件损坏或文件格式不兼容。

将csv文件导入datatable不会返回任何结果

1 个答案: