protected void HyperLink_Init(object sender, EventArgs e) { ASPxHyperLink hyperLink = sender as ASPxHyperLink; CardViewDataItemTemplateContainer container = hyperLink.NamingContainer as CardViewDataItemTemplateContainer; byte[] fileBytes = CardView.GetCardValues(container.VisibleIndex, fileColumn) as byte[]; if (fileBytes != null) { hyperLink.NavigateUrl = string.Format("FileDownloadHandler.ashx?id={0}", container.KeyValue); hyperLink.Text = "file.pdf"; } }