display data in list view with where clause where textbox value same as in database

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C#

ASP

SQL-Server-2008R2

display data in list view with where clause where random_no = textbox2.text.
this is m code

private void BindListView()
{
//SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["ApplicationServices"].ToString());

string constr = ConfigurationManager.ConnectionStrings["ApplicationServices"].ConnectionString;
using (SqlConnection con = new SqlConnection(constr))
{
using (SqlCommand cmd = new SqlCommand())
{
cmd.CommandText = "select * from descroption where [random_no] = '"+ TetxBox2.Text+"' ";
cmd.Connection = con;
using (SqlDataAdapter sda = new SqlDataAdapter(cmd))
{
DataTable dt = new DataTable();
sda.Fill(dt);
ListView3.DataSource = dt;
ListView3.DataBind();
}
}
}
}


want to show data where textbox value same