Question

我有一个关于将数据写入CSV文件的问题。我有一个名为test.csv的文件，其中有2个字段＆gt; accountnumber和关系ID。现在我想在它旁边添加另一个字段：IBAN。 IBAN是第一行的数据，由SOAP功能BBANtoIBAN验证。

如何在CSV中保留2行数据帐号和关系ID，并在第3行添加IBAN？

到目前为止，这是我的代码：

using (var client = new WebService.BANBICSoapClient("IBANBICSoap"))
{
    List<List<string>> dataList = new List<List<string>>();
    TextFieldParser parser = new TextFieldParser(@"C:\CSV\test.csv");
    parser.TextFieldType = FieldType.Delimited;
    parser.SetDelimiters(";");
    while (!parser.EndOfData)
    {
        List<string> data = new List<string>();
        string row = parser.ReadLine();

        try
        {
            string resultIBAN = client.BBANtoIBAN(row);
            if (resultIBAN != string.Empty)
               data.Add(resultIBAN);
            else
               data.Add("Accountnumber is not correct.");
        }
        catch (Exception msg)
        {
            Console.WriteLine(msg);
        }
        dataList.Add(data);
    }  
}

Answer 1

我认为：

StreamReader sr = new StreamReader(@"C:\CSV\test.csv")
StreamWriter sw = new StreamWriter(@"C:\CSV\testOut.csv")
while (sr.Peek() >= 0) 
{
    string line = sr.ReadLine(); 


try
{
       string[] rowsArray = line.Split(';');
       string row = rowsArray[0];
       string resultIBAN = client.BBANtoIBAN(row);
       if (resultIBAN != string.Empty)
       {
           line +=";"+ resultIBAN;
       }
       else
       {
            line +=";"+"Accountnumber is not correct.";
       }

 }
 catch (Exception msg)
 {
     Console.WriteLine(msg);
 }
 sw.WriteLine(line) 
 }
sr.Close();
sw.Close();

Answer 2

我会做这样的事情来解析csv文件，并在数据列表中添加一个额外的项目：

        List<List<string>> dataList = new List<List<string>>();
        string filename = @"C:\CSV\test.csv";
        using (StreamReader sr = new StreamReader(filename))
        {
            string fileContent = sr.ReadToEnd();

            foreach (string line in fileContent.Split(new string[] {Environment.NewLine},StringSplitOptions.RemoveEmptyEntries))
            {
                List<string> data = new List<string>();
                foreach (string field in line.Split(';'))
                {
                    data.Add(field);
                }
                try
                {
                    string resultIBAN = client.BBANtoIBAN(data[0]);
                    if (resultIBAN != string.Empty)
                    {
                        data.Add(resultIBAN);
                    }
                    else
                    {
                        data.Add("Accountnumber is not correct.");
                    }
                }
                catch (Exception msg)
                {
                    Console.WriteLine(msg);
                }
                dataList.Add(data);
            }

将数据写入CSV文件

2 个答案: