How to Retrieve OLedb data and show it to MessageBox

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using System.Data.OleDb;

namespace AutomaticPrescriptionSystem

{

public partial class Form3 : Form

{

public Form3()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

try

{

OleDbConnection con1 = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=F:\\db\\Pres.mdb;");

OleDbCommand cmd1 = con1.CreateCommand();

con1.Open();

cmd1.CommandText = "Select * From advice Where bp='" + this.textBox1.Text + "' and heartrate='" + this.textBox2.Text + "'";

cmd1.Connection = con1;

// cmd1.ExecuteNonQuery();

OleDbDataReader mReader = cmd1.ExecuteReader();

int count = 0;

while (mReader.Read())

{

count = count + 1;

}

if (count == 1)

{

MessageBox.Show("Advice " + cmd1);

}

else

{

MessageBox.Show("incorrect");

}

}

catch (Exception)

{

Console.WriteLine("no connection");

}

}

}

}