我想在 csvHelper 的帮助下写入 csv 文件，但我遇到了异常
没有为类型 System.Collections.Generic.List`1[ParsingTest1.BookRecord] 定义属性“System.String Type**”
我想要实现的结果是这样的 csv 文件
05, Henrik, Data
06, Henrik Kodar, 2012
06, Henrik bakar, 2013
05, Fredrik, IT
06, Henrik Kodar, 2012
我查看了快速入门参考并询问了 Google 先生，但我们找不到原因。我复制了我使用的示例代码。
static void Main(string[] args)
{
var book1 = new BookRecord
{
Type = "06",
Title = "Henrik kodar",
Year = "2012"
};
var book2 = new BookRecord
{
Type = "06",
Title = "Henrik bakar",
Year = "2013"
};
var person = new PersonRecord
{
Type = "05",
Name = "Henrik",
Profession = "data"
};
person.BookRecords.Add(book1);
person.BookRecords.Add(book2);
var person1 = new PersonRecord
{
Type = "05",
Name = "Test",
Profession = "data"
};
person1.BookRecords.Add(book1);
person1.BookRecords.Add(book2);
var listan = new List<PersonRecord> { person };
var sr = new StreamWriter(@"C:\Development\bookz.csv");
var csvWriter = new CsvWriter(sr);
csvWriter.Configuration.RegisterClassMap<PersonMap>();
csvWriter.Configuration.RegisterClassMap<BookRecordMap>();
csvWriter.Configuration.HasHeaderRecord = true;
csvWriter.WriteRecords(listan);
sr.Flush();
sr.Close();
}
}
public class PersonRecord
{
public PersonRecord()
{
BookRecords = new List<BookRecord>();
}
public string Type { get; set; }
public string Name { get; set; }
public string Profession { get; set; }
public List<BookRecord> BookRecords { get; set; }
}
public class BookRecord
{
public string Type { get; set; }
public string Title { get; set; }
public string Year { get; set; }
}
public class PersonMap : CsvClassMap<PersonRecord>
{
public override void CreateMap()
{
Map(m => m.Type).Index(0);
Map(m => m.Name).Index(1);
Map(m => m.Profession).Index(2);
References<BookRecordMap>(m => m.BookRecords);
}
}
public class BookRecordMap : CsvClassMap<BookRecord>
{
public override void CreateMap()
{
Map(b => b.Type).Index(0);
Map(b => b.Title).Index(0);
Map(b => b.Year).Index(1);
}
}