I want to Insert Form data to excel sheet

I Am Trying to Insert Form Data To Excel sheet But GettingError  Please have look in a code and guide me in that way  

 

 

 

 

int result = cmd.ExecuteNonQuery(); // getting error here let me know why this happpens  

 

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data.OleDb;

using System.Data;

namespace Test

{

public partial class FormToExcel : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void BtnLogin_Click(object sender, EventArgs e)

{

string ConStr = "ExcelInsertDataExcel.xlsx";

string path = Server.MapPath("InsertDataExcel.xlsx");

ConStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" +Server.MapPath("Excel/InsertDataExcel.xlsx") + ";Extended Properties=\"Excel 12.0;ReadOnly=False;HDR=Yes;\"";

string query = "INSERT INTO [Sheet1$] ([FirstName],[LastName],[Address],[City],[State],[Zip],[IsActive] ) VALUES('" + txtFirstName.Text + "','" + txtLastName.Text + "','" + txtAddress.Text + "','" + txtCity.Text + "','" + DropDownList1.SelectedValue + "','" + txtZip.Text + "','" + CheckBoxList1.SelectedValue + "')";

OleDbConnection conn = new OleDbConnection(ConStr);

if (conn.State == ConnectionState.Closed)

{

conn.Open();

}

OleDbCommand cmd = new OleDbCommand(query, conn);

cmd.Parameters.AddWithValue("@FirstName", txtFirstName.Text);

cmd.Parameters.AddWithValue("@LastName", txtLastName.Text);

cmd.Parameters.AddWithValue("@Address", txtAddress.Text);

cmd.Parameters.AddWithValue("@City", txtCity.Text);

cmd.Parameters.AddWithValue("@State", DropDownList1.SelectedItem.Text);

cmd.Parameters.AddWithValue("@Zip", txtZip.Text);

cmd.Parameters.AddWithValue("@IsActive", CheckBoxList1.SelectedItem.Text);

int result = cmd.ExecuteNonQuery();

if (result > 0)

{

Response.Write("");

}

else

{

Response.Write("");

}

conn.Close();

}

}

}