请在csvhelper上快速帮助...
CSV: 名,姓氏
PersonMap:
public override void CreateMap()
{
Map(x => x.Name).Name("Name");
Map(x => x.LasName).Name("LastName");
}
人类:
public string Name { get; set; }
public string LastName { get; set; }
主:
public void writePerson()
{
IEnumerable<Person> records;
using (var r = new CsvReader(new StreamReader("person.csv")))
{
r.Configuration.RegisterClassMap<PersonMap>();
records = r.GetRecords<Person>().ToList();
}
using (var w = new CsvWriter(new StreamWriter("person.csv")))
{
w.Configuration.RegisterClassMap<PersonMap>();
w.WriteRecord(records); //rewrite csv list
w.WriteField("John"));
w.WriteField("Doe");
w.NextRecord();
}
}
ERROR LINE:records = reader.GetRecords()。ToList();
错误: 没有找到标题记录。
答案 0 :(得分:3)
好,所以我用以下内容修复了它:
写:
string persondata = "John, Doe";
using (FileStream fs = new FileStream("person.csv", FileMode.Append, FileAccess.Write))
using (StreamWriter sw = new StreamWriter(fs))
{ sw.WriteLine(persondata); sw.Dispose(); }
读:
IEnumerable<Person> records;
using (var reader = new CsvReader(new StreamReader(@"person.csv")))
{
reader.Configuration.RegisterClassMap<PersonMap>();
records = reader.GetRecords<Person>();
}
答案 1 :(得分:1)
看起来你的person.csv没有第一行作为标题行,如下所示:
Name,LastName
请检查CSV文件。
答案 2 :(得分:0)
添加以下配置行
w.configuration.HasHeaderRecord = false;