As some of you know I’m very good at starting new projects… not so good at finishing them. This time, however, I’ve actually done it! I came up with a new project, started doing it, and have now actually finished it! At the office we have some hardware with a serial port and we needed to see what kind data was sent from the hardware. Initially I thought that that would be easy as there should be many simple tools for this on the internet. I was wrong. We downloaded a lot of different tools, but none worked. After a while we finally found one that worked, but that only had a trial version (which sufficed for our quick debugging). Seeing as this kind of software […] Read more
Recently I encountered a problem using webservices in .Net. At irregular intervals the code suddenly threw the following exception when calling a webservice: System.Net.WebException: The operation has timed out There was nothing magical in the code around the calls to the webservice where it was handled in the usual fashion: WebserviceClass ws = new WebserviceClass(); ws.Foo(); When the code reached ws.Foo() it just waited there for over a minute before throwing the previously mentioned exception. Since using webservices is extremely streamlined and standardized in Visual Studio I initially thought the problem had to lie somewhere else than my application, like maybe there were networking issues or the ISS server that hosted the webservice had some problems. When troubleshooting all of the above and nothing panned […] Read more
I had the need to programatically print an XPS file, but a couple of hours of Google searches only returned examples of how to print TO an XPS file. It was extremely difficult to find how to send a XPS file to an actual physical printer. Eventually something turned up and the solution seemed to be the XpsDocument class. Look at this simplified example to see how easy it turned out to be: PrintDialog dlg = new PrintDialog(); XpsDocument xpsDoc = new XpsDocument(PATH_TO_YOUR_XPS_FILE_HERE, System.IO.FileAccess.Read); dlg.PrintDocument(xpsDoc.GetFixedDocumentSequence().DocumentPaginator, “Document title”); As you can see, reading a XPS file and then sending the contents to a printer is not very hard at all.
For a new project of mine I’m using a rich text editor called CKEditor. This is a highly configurable editor that, unfortunately, suffers from cluttered and not easily understandable documentation. I needed to change the generated HTML from the editor so that images that were resized not only had their size set as style attributes, but as query string variables. So I needed this: <img src=”http://yoursite.com/photo.jpg” style=”width:150px; height:200px;” /> to be output as this: <img src=”http://yoursite.com/photo.jpg?width=150&height=200″ style=”width:150px; height:200px;” /> That proved to be easier said than done, but after quite a lot of googling, asking on several forums, and getting some helpful (and some not helpful at all) replies, I finally ended up with the following: Put the following code into CKEditor’s config.js: CKEDITOR.on(‘instanceReady’, function […] Read more