Update query not updating data in SQL Server on button click in ASP.Net

     Followng is my function and stored procedure. Issue us that data is not getting updated

    protected void ImageButton2_Click1(object sender, ImageClickEventArgs e)
    {
       
        string data1 = Request.QueryString["Id"].ToString();
      
            SqlCommand _cmd = new SqlCommand("editproduct", _cn);
            _cmd.CommandType = CommandType.StoredProcedure;
            _cn.Open();

            _cmd.Parameters.AddWithValue("@Name", proname.Text);
            _cmd.Parameters.AddWithValue("@Model", promodel.Text);
            _cmd.Parameters.AddWithValue("@Description", CKEditorControl1.Text);
            _cmd.Parameters.AddWithValue("@id", data1);


            _cn.Close();

            Response.Redirect(Request.Url.AbsoluteUri);
        
    }

ALTER procedure [dbo].[editproduct]

@Name nvarchar(30),@Model nvarchar(Max),@Description nvarchar(max)
,@id int,@behcode nvarchar(10)
as
begin
update House_p set Name=@Name,Model=@Model,Description=@Description,Date=GETDATE()
where id=@id
end