Note :This post is first published on Apr-2013 in my previous blog Techkindle. Moving the content here.

Steps:

  1. First, by using the File class static method ReadAllLines(path), read all the lines from the csv file  to the string array.
  2. In the resulting array, first element contains the column names. using the first line, we should create the Data table columns.
  3. Other than the first element, all other elements contains the row’s data. Using the same we can create the data table rows.
using System;
using System.Text;
using System.Data;
using System.IO;
namespace ReadData
{
class DataConvert
{
static void Main(string[] args)
{
CsvToDataTable obj = new CsvToDataTable();
DataTable dtData = obj.ConvertCsvToDataTable(@"D:\student.csv");
obj.ShowData(dtData);
}
class CsvToDataTable
{
public DataTable ConvertCsvToDataTable(string filePath)
{
//reading all the lines(rows) from the file.
string[] rows = File.ReadAllLines(filePath);
DataTable dtData = new DataTable();
string[] rowValues = null;
DataRow dr = dtData.NewRow();
//Creating columns
if (rows.Length > 0)
{
foreach (string columnName in rows[0].Split(','))
dtData.Columns.Add(columnName);
}
//Creating row for each line.(except the first line, which contain column names)
for (int row = 1; row < rows.Length; row++)
{
rowValues = rows[row].Split(',');
dr = dtData.NewRow();
dr.ItemArray = rowValues;
dtData.Rows.Add(dr);
}
return dtData;
}
public void ShowData(DataTable dtData)
{
if (dtData != null && dtData.Rows.Count > 0)
{
foreach (DataColumn dc in dtData.Columns)
{
Console.Write(dc.ColumnName + " ");
}
Console.WriteLine("\n———————————————–");
foreach (DataRow dr in dtData.Rows)
{
foreach (var item in dr.ItemArray)
{
Console.Write(item.ToString() + " ");
}
Console.Write("\n");
}
Console.ReadKey();
}
}
}
}
}

view raw
CsvToDataTable
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Output

Happy Learning 🙂