how to bring datagridview in front of text box

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C#

i have a form which have many textboxes. i also have a datagridview on the form which is hiding
when the form loads but it becomes visible when a value is entered in one textbox txtsurname.
the problem is when the datagridview becomes visible, the textboxs are always infront of it.
how do i make the datagridview to come in front of the textboxs.
please help me

//codes///

SqlConnection conn = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);

            string strConn = "Data Source=USER-PC;Initial Catalog=PIWCDB;User ID=sa;Password=mike";
            string strSQL = "select Dedicationid, Surname, Othername from tblDedication where surname LIKE '" + txtSurname.Text + "%" + "' order by Surname";



            //conn.Open();

            SqlDataAdapter dataAdapter = new SqlDataAdapter(strSQL, strConn);
            SqlCommandBuilder commandBuilder = new SqlCommandBuilder(dataAdapter);

            // Populate a new data table and bind it to the BindingSource.
            DataTable table = new DataTable();
            table.Locale = System.Globalization.CultureInfo.InvariantCulture;
            dataAdapter.Fill(table);


            string expression = "[Dedicationid] like '%" + this.txtDedicationno.Text + "%'";


            DataRow[] filteredRows = table.Select(expression);
            if (filteredRows.Any())
            {
                table = filteredRows.CopyToDataTable();

                this.dgvSearchname.Visible = true;
                this.dgvSearchname.BringToFront();
            }

            else
            {
                dgvSearchname.Visible = false;
            }


            // you can make it grid readonly.
            dgvSearchname.ReadOnly = true;

            dgvSearchname.DataSource = table;