CsvHelper.CsvRead 不返回任何内容

如何解决CsvHelper.CsvRead 不返回任何内容

我第一次使用 CSVHelper。

我有一个像这样的简单 CSV 文件：

a,b,c
1,2,3
4,5,6
7,8,9

当我尝试使用此代码阅读时：

using (var reader = new StreamReader(@"e:\a.csv"))
using (var csv = new CsvReader(reader,CultureInfo.InvariantCulture))
{
    // Do any configuration to `CsvReader` before creating CsvDataReader.
    using (var dr = new CsvDataReader(csv))
    {
        var dt = new DataTable();
        dt.Load(dr);
    }
}

csv 不返回任何内容：

{CsvHelper.CsvReader}
    ColumnCount: 0
    Configuration: {CsvConfiguration { AllowComments = False,BadDataFound = CsvHelper.BadDataFound,BufferSize = 4096,CacheFields = False,Comment = #,CountBytes = False,CultureInfo =,Delimiter =,DetectDelimiter = False,DetectDelimiterValues = System.String[],DetectColumnCountChanges = False,DynamicPropertySort =,Encoding = System.Text.UTF8Encoding,Escape = ",ExceptionMessagesContainRawData = True,GetConstructor = CsvHelper.GetConstructor,GetDynamicPropertyName = CsvHelper.GetDynamicPropertyName,HasHeaderRecord = True,HeaderValidated = CsvHelper.HeaderValidated,IgnoreBlankLines = True,IgnoreReferences = False,IncludePrivateMembers = False,InjectionCharacters = System.Char[],InjectionescapeCharacter =,IsNewLineset = False,LeaveOpen = False,LineBreakInQuotedFieldisBadData = False,MemberTypes = Properties,MissingFieldFound = CsvHelper.MissingFieldFound,Mode = RFC4180,NewLine =,PrepareHeaderForMatch = CsvHelper.PrepareHeaderForMatch,ProcessFieldBufferSize = 1024,Quote = ",ReadingExceptionOccurred = CsvHelper.ReadingExceptionOccurred,ReferenceHeaderPrefix =,SanitizeforInjection = False,ShouldQuote = CsvHelper.ShouldQuote,ShouldSkipRecord = CsvHelper.ShouldSkipRecord,ShouldUseConstructorParameters = CsvHelper.ShouldUseConstructorParameters,TrimOptions = None,UseNewObjectForNullReferenceMembers = True,WhiteSpaceChars = System.Char[] }}
    Context: {CsvHelper.CsvContext}
    CurrentIndex: -1
    HeaderRecord: null
    Parser: {CsvHelper.CsvParser}

有什么问题？我想不通。

解决方法

测试下面的代码我认为问题是如何用StreamReader

打开文件

using (var streamReader = File.OpenText(path))
{
   using (var csvReader = new CsvReader(streamReader,CultureInfo.CurrentCulture))
   {
       using (var dr = new CsvDataReader(csvReader))
       {
           var dt = new DataTable();
           dt.Load(dr);
       }
   }
}