添加屬性的集合，而讀csv文件與CsvHelper

Question

我使用C＃CsvHelper閱讀以下CSV文件：

的CSV文件順序：

ID;消息

0;Hello World 
1;Foobar 

我需要的對象的類看起來像這樣。我需要的文本，因爲閱讀csv文件後，我會添加更多的信息到我的Foobar的對象的集合......

的Foobar級：

public int ID {get;set;} 

public ICollection<Text> Texts {get;set;} 

public Foobar() 
{ 
    Texts = new List<Text>(); 
} 

文本類：

public int ID {get;set;} 
public string Message {get;set;} 

我對CsvHelper映射

CsvClassMap的Foobar的：

Map(m => m.ID).Index(0); 
**Map(m => m.Texts).ConvertUsing(row => row.GetField<Text>("Message", 1));** 

但Csvhelper沒有消息添加到Foobar的的收藏。我怎樣才能做到這一點？

Answer 1

使用我的項目，將csv添加到表中。然後，您可以在讀取文件後將行添加到表中。

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Windows.Forms; 
using System.IO; 
using System.Data.OleDb; 
using System.Xml; 
using System.Xml.Xsl; 

namespace CSVImporter 
{ 

    public partial class CSVImporter : Form 
    { 
     //const string xmlfilename = @"C:\Users\fenwky\XmlDoc.xml"; 
     const string xmlfilename = @"C:\temp\test.xml"; 
     DataSet ds = null; 
     public CSVImporter() 
     { 
      InitializeComponent(); 
      // Create a Open File Dialog Object. 
      openFileDialog1.Filter = "csv files (*.csv)|*.csv|All files (*.*)|*.*"; 
      openFileDialog1.ShowDialog(); 
      string fileName = openFileDialog1.FileName; 


      //doc.InsertBefore(xDeclare, root); 
      // Create a CSV Reader object. 
      CSVReader reader = new CSVReader(); 

      ds = reader.ReadCSVFile(fileName, true); 
      dataGridView1.DataSource = ds.Tables["Table1"]; 

     } 
     private void WXML_Click(object sender, EventArgs e) 
     { 
      WriteXML(); 

     } 
     public void WriteXML() 
     { 

      StringWriter stringWriter = new StringWriter(); 
      ds.WriteXml(new XmlTextWriter(stringWriter), XmlWriteMode.WriteSchema); 

      string xmlStr = stringWriter.ToString(); 

      XmlDocument doc = new XmlDocument(); 
      doc.LoadXml(xmlStr); 


      XmlDeclaration xDeclare = doc.CreateXmlDeclaration("1.0", "UTF-8", null); 
      XmlNode docNode = doc.CreateXmlDeclaration("1.0", "UTF-8", null); 

      doc.InsertBefore(xDeclare, doc.FirstChild); 

      // Create a procesing instruction. 
      //XmlProcessingInstruction newPI; 
      //String PItext = "<abc:stylesheet xmlns:abc=\"http://www.w3.org/1999/XSL/Transform\" version=\"1.0\">"; 
      //String PItext = "type='text/xsl' href='book.xsl'"; 
      string PItext = "html xsl:version=\"1.0\" xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\""; 
      XmlText newPI = doc.CreateTextNode(PItext); 
      //newPI = docCreateProcessingInstruction("html", PItext); 
      //newPI = doc.CreateComment(CreateDocumentType("html", PItext, "", ""); 
      doc.InsertAfter(newPI, doc.FirstChild); 
      doc.Save(xmlfilename); 

      XslCompiledTransform myXslTrans = new XslCompiledTransform(); 
      myXslTrans.Load(xmlfilename); 
      string directoryPath = Path.GetDirectoryName(xmlfilename); 
      myXslTrans.Transform(xmlfilename, directoryPath + "result.html"); 
      webBrowser1.Navigate(directoryPath + "result.html"); 

     } 



    } 
    public class CSVReader 
    { 

     public DataSet ReadCSVFile(string fullPath, bool headerRow) 
     { 

      string path = fullPath.Substring(0, fullPath.LastIndexOf("\\") + 1); 
      string filename = fullPath.Substring(fullPath.LastIndexOf("\\") + 1); 
      DataSet ds = new DataSet(); 

      try 
      { 
       if (File.Exists(fullPath)) 
       { 
        string ConStr = string.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0}" + ";Extended Properties=\"Text;HDR={1};FMT=Delimited\\\"", path, headerRow ? "Yes" : "No"); 
        string SQL = string.Format("SELECT * FROM {0}", filename); 
        OleDbDataAdapter adapter = new OleDbDataAdapter(SQL, ConStr); 
        adapter.Fill(ds, "TextFile"); 
        ds.Tables[0].TableName = "Table1"; 
       } 
       foreach (DataColumn col in ds.Tables["Table1"].Columns) 
       { 
        col.ColumnName = col.ColumnName.Replace(" ", "_"); 
       } 
      } 

      catch (Exception ex) 
      { 
       MessageBox.Show(ex.Message); 
      } 
      return ds; 
     } 
    } 
}