C# 对于csv转换列表<;类别>;转换为字节数组
我有一个行动C# 对于csv转换列表<;类别>;转换为字节数组,c#,asp.net-mvc-3,list,csv,C#,Asp.net Mvc 3,List,Csv,我有一个行动 public FileContentResult DownloadCSV() { var people = new List<Person> { new Person("Matt", "Abbott"), new Person("John","Smith") }; string csv = "Charlie, Chaplin, Chuckles"; Extensions.ToCSV(new DataTable()
public FileContentResult DownloadCSV()
{
var people = new List<Person> { new Person("Matt", "Abbott"), new Person("John","Smith") };
string csv = "Charlie, Chaplin, Chuckles";
Extensions.ToCSV(new DataTable());
return File(new System.Text.UTF8Encoding().GetBytes(csv), "text/csv", "Report123.csv");
}
如何转换成字节数组
var people = new List<Person> { new Person("Matt", "Abbott"), new Person("John","Smith") };
var people=newlist{新人(“马特”、“雅培”)、新人(“约翰”、“史密斯”)};
进入带有csv格式头的字节数组我不明白您想要什么。但根据我对您前面提出的问题的理解,以下是将对象转换为字节[]的方法
static void Main(string[] args)
{
Person p1 = new Person();
p1.ID = 1;
p1.Name = "Test";
byte[] bytes = ObjectToByteArray(p1);
}
private byte[] ObjectToByteArray(Object obj)
{
if(obj == null)
return null;
BinaryFormatter bf = new BinaryFormatter();
MemoryStream ms = new MemoryStream();
bf.Serialize(ms, obj);
return ms.ToArray();
}
[Serializable]
public class Person
{
public int ID { get; set; }
public string Name { get; set; }
}
考虑到您没有显示成员
Person
拥有什么,这有点不可能。。。也;CSV是非常重要的,如果我们包括转义值、多行值等,那么我们就不清楚您在问什么。您是否只是想循环查看人员
,并构建一个字符串以存储在CSV中?你想在这个字符串中得到什么?我想要一种将csv中的列表值转换为格式化的waybf.Serialize(ms,obj)的方法;显示错误“未标记为可序列化”。您需要在类中添加[serializable]属性以启用序列化。
var people = new List<Person> { new Person("Matt", "Abbott"), new Person("John","Smith") };
static void Main(string[] args)
{
Person p1 = new Person();
p1.ID = 1;
p1.Name = "Test";
byte[] bytes = ObjectToByteArray(p1);
}
private byte[] ObjectToByteArray(Object obj)
{
if(obj == null)
return null;
BinaryFormatter bf = new BinaryFormatter();
MemoryStream ms = new MemoryStream();
bf.Serialize(ms, obj);
return ms.ToArray();
}
[Serializable]
public class Person
{
public int ID { get; set; }
public string Name { get; set; }
}