csvhelper IsHeaderCaseSensitive Work around
本文关键字:around Work IsHeaderCaseSensitive csvhelper | 更新日期: 2023-09-27 18:10:17
我试图在一个标题为'EMAIL'的csv文件中读取,但是,我不断得到CsvMissingFieldException抛出"字段'EMAIL'不存在于csv文件"。
我设置CSVreader来处理-
csvReader.Configuration.IsHeaderCaseSensitive = false;
但我仍然得到同样的问题。有人知道变通的办法吗?或者为什么配置不起作用?
在我的Utilities类中:
public static IEnumerable<T> CSVreader<T>(string fileName)
{
using (var fileReader = File.OpenText(fileName))
using (var csvReader = new CsvHelper.CsvReader(fileReader))
{
csvReader.Configuration.IsHeaderCaseSensitive = false;
csvReader.Configuration.RegisterClassMap<OptOutClassMap>();
while (csvReader.Read())
{
var record = csvReader.GetRecord<T>();
yield return record;
}
}
}
在我的类映射类:
public string Email { get; set; }
public class CustomClassMap : CsvHelper.Configuration.CsvClassMap<CustomMap>
{
public override void CreateMap()
{
Map(m => m.Email);
}
}
看起来您没有使用正确的ClassMap。从上面的代码中,行:
csvReader.Configuration.RegisterClassMap<OptOutClassMap>();
应:csvReader.Configuration.RegisterClassMap<CustomClassMap>();
修改后的代码按预期工作。
static void Main(string[] args)
{
var records = CSVreader<Record>("TextFile1.csv");
}
public class Record
{
public string Email { get; set; }
}
public class CustomClassMap : CsvHelper.Configuration.CsvClassMap<Record>
{
public override void CreateMap()
{
Map(m => m.Email);
}
}
public static IEnumerable<T> CSVreader<T>(string fileName)
{
using (var fileReader = File.OpenText(fileName))
using (var csvReader = new CsvHelper.CsvReader(fileReader))
{
csvReader.Configuration.IsHeaderCaseSensitive = false;
csvReader.Configuration.RegisterClassMap<CustomClassMap>();
while (csvReader.Read())
{
var record = csvReader.GetRecord<T>();
yield return record;
}
}
}