protected void DdlBrand_SelectedIndexChanged(object sender, EventArgs e)
    {
        Object BrandByProduct = new Object();

        BrandByProduct.Product_Brand = DdlBrand.SelectedValue;
        BrandByProduct.Product_Name  = HiddenProductName.Value;
        BrandByProduct.Category_Name = HiddenCatagoryName.Value;
        DataTable dt = BSLAYER.ProductByBrand(BrandByProduct);

        int r = dt.Rows.Count;

        if (r < 1)
        {
            LblMsg.Visible    = true;
            DataList1.Visible = false;
        }
        else
        {
            LblMsg.Visible       = false;
            DataList1.Visible    = true;
            DataList1.DataSource = dt;
            DataList1.DataBind();
        }
    }