i will like to retrieve the element which is not like same

Question

 i would like to retrieve the the text which is not like the text i entered in the text box here is my code i am not getting the table displayed 


.cs

        string x = Request.QueryString["Name"] + "%";

        con.Open();

        SqlCommand scom = new SqlCommand();

        scom.Connection = con;

        scom.CommandText = "select Keyword from products where keyword NOT  LIKE @x ";

       // scom.CommandText = "select * from proper where @x notlike keyword";

        scom.Parameters.AddWithValue("@x", x);

        DataSet ds = new DataSet();

        SqlDataAdapter dap = new SqlDataAdapter();

        dap.SelectCommand = scom;

        dap.Fill(ds);

        GridView1.DataSource = ds;

        GridView1.DataBind();