我使用csvHelper库面临一些问题。我附上了我的班级对象。我希望字符串和dateTime类型的数据只会被引用。
我知道我需要更新csv.Configuration.ShouldQuote选项。但不知道怎么做。
static void Main()
{
var recordNew = new List<Metadata>
{
new Metadata { Id = Guid.NewGuid(), VersionNumber = 100, CreatedOn=DateTime.Now, Name = "two", AccountSequene=90, IsPublic=false}
};
writeDataTest(recordNew);
}
private static void writeDataTest(List<Metadata> records)
{
using (var writer = new StringWriter())
using (var csv = new CsvWriter(writer))
{
csv.Configuration.HasHeaderRecord = false;
csv.Configuration.ShouldQuote = (field, context) =>
{
return context.Record.Count == 1;
};
csv.Configuration.RegisterClassMap<MetadataMap>();
csv.WriteRecords(records);
var s = writer.ToString();
}
}
public class Metadata
{
public Guid? Id { get; set; }
public long? VersionNumber { get; set; }
public DateTime? CreatedOn { get; set; }
public string Name { get; set; }
public string Email { get; set; }
public long? AccountSequene { get; set; }
public bool? IsPublic { get; set; }
}
public class MetadataMap : ClassMap<Metadata>
{
public MetadataMap()
{
Map(m => m.Id).Index(0);
Map(m => m.VersionNumber).Index(1);
Map(m => m.CreatedOn).Index(2).ConvertUsing(m => $"\"{m.CreatedOn}\"");
Map(m => m.Name).Index(3).ConvertUsing(m => $"\"{m.Name}\"");
Map(m => m.Email).Index(4).ConvertUsing(m => $"\"{m.Email}\"");
Map(m => m.AccountSequene).Index(5);
Map(m => m.IsPublic).Index(6);
}
}
目前我得到的结果是
74d5c276-0e5f-442b-a392-cd8fb37c4114,“100”,“4/12/2019 2:11:40 PM”,“two”,“”,90,False
引用100作为我设置的返回context.Record.Count == 1;但我的预期结果是
74d5c276-0e5f-442b-a392-cd8fb37c4114,100,“4/12/2019 2:11:40 PM”,“two”,, 90,False
在预期的结果,因为没有提供字符串电子邮件所以我想要它(“两个”,90而不是“两个”,“”,90)