How to store excel file data in list - c#-4.0

Question

Creating an application to read excel (.xls) file.
I am able to read the file but it is showing only count of data.
But not able to get the data from file.
Microsoft.Office.Interop.Excel.Application xlApp = new Excel.Application();
Excel.Workbook xlWorkbook = xlApp.Workbooks.Open(#"C:\Landingfolder\file.xls");
Excel._Worksheet xlWorksheet = xlWorkbook.Sheets[1];
Excel.Range xlRange = xlWorksheet.UsedRange;
int rowCount = xlRange.Rows.Count;
int colCount = xlRange.Columns.Count;
for (int i = 1; i <= rowCount; i++)
{
for (int j = 1; j <= colCount; j++)
{
//new line
if (j == 1)
Console.Write("\r\n");
//write the value to the console
if (xlRange.Cells[i, j] != null && xlRange.Cells[i, j].Value2 != null)
Console.Write(xlRange.Cells[i, j].Value2.ToString() + "\t");
Console.ReadLine();
}
}
Please let me know the right process.

Answer 1

Use this Code
using System.Data.OleDb;
using System.IO;
using System.Data;
public class Employee
{
public string Name { get; set; }
public string Designation { get; set; }
public int? Experience { get; set; }
}
/// <summary>
/// Open Connection
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
private OleDbConnection OpenConnection(string path)
{
OleDbConnectio n oledbConn = null;
try
{
if (Path.GetExtension(path) == ".xls")
oledbConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" + path +
"; Extended Properties= \"Excel 8.0;HDR=Yes;IMEX=2\"");
else if (Path.GetExtension(path) == ".xlsx")
oledbConn = new OleDbConnection(#"Provider=Microsoft.ACE.OLEDB.12.0; Data Source=" +
path + "; Extended Properties='Excel 12.0;HDR=YES;IMEX=1;';");
oledbConn.Open();
}
catch (Exception ex)
{
//Error
}
return oledbConn;
}
/// <summary>
/// Extract 'Service Information' sheet
/// </summary>
/// <param name="oledbConn"></param>
private IList<Employee> ExtractEmployeeExcel(OleDbConnection oledbConn)
{
OleDbCommand cmd = new OleDbCommand (); ;
OleDbDataAdapter oleda = new OleDbDataAdapter();
DataSet dsEmployeeInfo = new DataSet ();
cmd.Connection = oledbConn;
cmd.CommandT ype = CommandType.Text;
cmd.CommandT ext = "SELECT * FROM [Employee$]"; //Excel Sheet Name ( Employee )
oleda = new OleDbDataAdapter(cmd);
oleda.Fill (dsEmployeeInfo, "Employee");
var dsEm ployeeInfoList = dsEmployeeInfo.Tables[0].AsEnumerable().Select (s => new Employee
{
Name = Convert.ToString(s["Name"] ! = DBNull.Value ? s["Name"] : ""),
Designation = Convert.ToString(s["Designation"] ! = DBNull.Value ? s["Designation"] : ""),
Experience = Convert.ToInt32(s["Experience"])
}).ToList ();
return dsEmployeeInfoList;
}
/// <summary>
/// Read excel sheet with the user path
/// </summary>
/// <param name="path"></param>
public IList<Employee> ReadExcel(string path)
{
IList<Employ ee> objEmployeeInfo = new List<Employee>();
try
{
OleDbConnection oledbConn = OpenConnection(path);
if (oledbConn.State == ConnectionState.Open)
{
objEmployeeInfo = ExtractEmployeeExcel (oledbConn);
oledbConn.Close();
}
}
catch (Exception ex)
{
// Error
}
return objEmployeeInfo;
}
Use of Code:
Here calling the ReadExcel() method to get the excel content.
string path = #"D:\Employee.xls";
IList<Employee> objExcelCon = ReadExcel(path);