Good morning,

 

At our company we build an ASP.NET webforms application. We are considering using the DocumentUltimate product for mainly opening PDF and MS Office files. I have implemented some code to make the viewer work. We show a normal default.aspx page on where we open a tab to show some content and the DocumentViewer. So if we add the DocumentViewer in a normal way it will not work because we already loaded the page, the header is rendered and the control is to late to add viewer.js to the head of the DOM. To get rid of this problem we added some code in our OnPreRender method which does this for us:

 

           {
               MethodInfo info = typeof(DocumentViewer).GetMethod("GetScriptTags", BindingFlags.Instance | BindingFlags.NonPublic);
               string[] script = (string[])info.Invoke(documentViewer, new object[0]);
 
               for(int i = 0; i < script.Length; i++)
                   ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "tsfpreview" + i.ToString(), script[i], false);
           }

 

After this the viewer still not works, so I looked in viewer.js and took the code which renders the documents and put them in my own script as follows:

TSFMainScript.AppendScript(string.Format(@"var element = document.getElementById('{0}');
                    // Find the script within the panel which is added by the control and move it to the header.
                    jQuery(element).find('script').appendTo(document.head);
 
                     for (var i = 0; i < documentViewersToRender.length; i++)
                        renderDocumentViewer(documentViewersToRender[i]);
 
                     // Empty the viewers so it is not rendered double when there are multiple viewers on the page.
                     documentViewersToRender = [];
                    ", this.panel.ClientID));
        }