如何使用C#读取多行单元格的CSV文件

Question

我正在尝试读取其中包含多行单元格的 CSV 文件。

这是 CSV 的样子：

第 1 行，“详细信息”列有多行。

当我尝试使用ReadLine()方法阅读它时：

private void buttonBrowse_Click(object sender, EventArgs e)
        {
            openFileDialog.Filter = "Excel Worksheets|*.csv";
            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                String filePathAndName = openFileDialog.FileName;
                StreamReader reader = new StreamReader(filePathAndName);
                String line = reader.ReadLine();
                Console.WriteLine(line);
                do
                {
                     line = reader.ReadLine();
                     Console.WriteLine(line);
                } while (line != null);
            }
        }

它将具有多行的单元格拆分为行数：

[1]"Time of Day","Process Name","PID","Operation","Path","Result","Detail","Image Path"
[2]"22:52:24.2905182","notepad.exe","4828","Process Start","","SUCCESS","Parent PID: 2484, Command line: ""C:\Windows\system32\notepad.exe"" , Current directory: C:\Users\User\, Environment: 
[3];    =::=::\
[4];    ALLUSERSPROFILE=C:\ProgramData
[5];    APPDATA=C:\Users\User\AppData\Roaming
[6];    asl.log=Destination=file
[7];    CommonProgramFiles=C:\Program Files\Common Files
...

"22:52:24.2905201","notepad.exe","4828","Thread Create","","SUCCESS","Thread ID: 8008","C:\Windows\system32\notepad.exe"
"22:52:24.2915842","notepad.exe","4828","Load Image","C:\Windows\System32\notepad.exe","SUCCESS","Image Base: 0x6f0000, Image Size: 0x30000","C:\Windows\system32\notepad.exe"

在上面的日志中，第 2-7 行应该是一行。

我想阅读它，就像 powershell 在这里使用import-csv函数做得很好一样：

您可以使用以下命令（示例）轻松地按行和列从特定单元格中提取数据：

$csvContent[0] |select -expand Detail

例子：

Answer 1

您可以使用像CsvHelper这样的库，而不是手动读取行，这将消除解析 csv 的很多麻烦。