Function for Fetching Data from Database and Showing in DataGridView

// function for fetching data from database and showing in datagridview in window application and make a function

    public void displayDataGridView()
   {
        SqlConnection con = new SqlConnection("server = MUNESH\\SQL2008R2;Database=data;UID=sa;Password=123;");
        SqlCommand cmd = new SqlCommand("Select * from data1", con);
        try
        {
            con.Open();
            SqlDataAdapter da = new SqlDataAdapter();
            da.SelectCommand = cmd;
            DataTable dt = new DataTable();
            da.Fill(dt);
            dataGridView1.DataSource = dt;
            con.Close();
        }
        catch (Exception ec)
        {
            MessageBox.Show(ec.Message);
        }
}