C# 使用对象属性值的CSVHelper写入头
我有这样一份清单:C# 使用对象属性值的CSVHelper写入头,c#,.net,csvhelper,C#,.net,Csvhelper,我有这样一份清单: List<ValueModel> list = new List<ValueModel>(); for(var i = 1; i <= 3;i++) { lista.Add(new ValueModel { Name = string.Format("Header {0}",i),
List<ValueModel> list = new List<ValueModel>();
for(var i = 1; i <= 3;i++)
{
lista.Add(new ValueModel
{
Name = string.Format("Header {0}",i),
Value = string.Format("Value of Header {0}", i),
});
}
我想你指的是图书馆。如果没有,请在问题中澄清这一点 要实现输出,您可以使用以下方法:
var data = new List<ValueModel>(0);
data.Add(new ValueModel { Name= "Stack", Surname= "Overflow", Users = "1M" });
data.Add(new ValueModel { Name= "Stack", Surname= "ServerFault", Users = "0.5M" });
using (StreamWriter sw = new StreamWriter(@"C:\Temp\out.csv"))
using (CsvWriter cw = new CsvWriter(sw))
{
cw.WriteHeader<ValueModel>();
foreach (ValueModel rec in data)
{
cw.WriteRecord<ValueModel>(rec);
}
}
Name,Surname,Users
Stack,Overflow,1M
Stack,ServerFault,0.5M
我建议使用描述的属性定义属性,这样您就可以保持c#中的命名约定,并轻松添加用户友好的属性名称
更新(根据初始评论):
下面的代码将生成所需的输出
var data = new List<ValueModel>(0);
using (StreamWriter sw = new StreamWriter(@"C:\Temp\out.csv"))
using (CsvWriter cw = new CsvWriter(sw))
{
cw.WriteRecord(data.Select(x => x.Name).ToArray());
cw.WriteRecord(data.Select(x => x.Value).ToArray());
}
var数据=新列表(0);
使用(StreamWriter sw=new StreamWriter(@“C:\Temp\out.csv”))
使用(CsvWriter cw=新CsvWriter(sw))
{
cw.WriteRecord(data.Select(x=>x.Name.ToArray());
cw.WriteRecord(data.Select(x=>x.Value.ToArray());
}
当然,每种情况都是独特的,但如果对象是{Name;Value},我建议您使用字典。请看一下。@funie200,谢谢您回答我的问题,但我要查找的是Name属性的值将是标题,value属性的值将是行谢谢你回答了我的问题,但是我要找的是Name属性的值将是标题,value属性的值将是行。因此,在您的示例中,“Stack”将是标题,“Overflow”将是行。此外,我的值模型将只有2个属性(名称和值)
var data = new List<ValueModel>(0);
using (StreamWriter sw = new StreamWriter(@"C:\Temp\out.csv"))
using (CsvWriter cw = new CsvWriter(sw))
{
cw.WriteRecord(data.Select(x => x.Name).ToArray());
cw.WriteRecord(data.Select(x => x.Value).ToArray());
}