Telerik blogs

Tag: XAML

  • Desktop WPF

    WPF: Custom control style and theme resources

    Hi everyone. I'm Jordan Dimitrov from the WPF team. I'm planning to post about .Net, first with few post about WPF. My first post is about resources and themes. Recently I had a problem with resources from themes files. I tried to use DynamicResource markup extension in Style in generic.xaml (sample bellow). But it didn't work. I changed DynamicResource extension with StaticResource markup extension and now it works. But WHY DynamicResource doesn't work? Sample XAML In my generic.xaml there are two items - a style for my CustomControl1 and a resource SolidColorBrush with key brush1.     1 <ResourceDictionary     2    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     3    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     4    xmlns:local="clr-namespace:WpfApplication1">    ...
    hristo-maradjiev by Hristo Maradjiev
    June 17, 2008 3 min read
  • Desktop WPF

    WPF Line Drawing and the Device-Pixel-(In)dependence

    As you are probably aware resolution and device independence is one of the fundamental design goals of WPF. In order to achieve the desired effect the framework does not work directly with physical (device-dependent) pixels but abstracts this notion into device-independent measuring units like inches. There are two main benefits that you get from this: Automatic DPI-aware scaling Sub-pixel positioning -- WPF coordinates use floating point numbers that theoretically give you the ability to draw with higher precision than the one provided by the ordinary pixel grid. However, there is one nasty side-effect related to the fact that WPF graphics are anti-aliased by default...
    June 16, 2008 3 min read
  • Desktop WPF

    WPF Series: IFrameworkElement - the missing interface

    If you are familiar with WPF you are aware that the the grand daddy of all controls is FrameworkElement. It is defined in the PresentationFramework.dll assembly and derives from UIElement (defined in PresentationCore.dll). Its purpose is to serve as a base element for all framework related stuff: styles, inheritance context, etc. However there is another framework element - FrameworkContentElement. The main distinct between them is that the later did not defines its own rendering behavior (its inheritors should do so). This is way properties like: (Actual)Width or (Actual)Height are not present at FrameworkContentElement. If you examine the classes that derive from FrameworkContentElement...
    June 10, 2008 2 min read
  • Desktop WPF

    WPF Series: Creating Generic Adorner

    As I have mentioned at the end of the previous post today I will show you how to create a generic adorner, which will allow you to decorate a single element  multiple times at different positions. At the end we will be able to create something that looks like this: To achieve this we will need a way to say that we want to position the adorner at the different corners of the element as well as to specify whether we want to be inside or outside (vertically or horizontally) of the element. Let's create some enumeration types that will serve for...
    May 22, 2008 2 min read
  • Web

    Increasing the compression ratio of the XAP files

    Today I was hacking around with a Silverlight application and decided to check if it is possible to recompress its XAP file in order to save some bytes. As you might already know, the XAP files are just renamed ZIP files and you can open and view their contents with almost any archiver. I created a simple batch file that extracts an archive to a temp folder, deletes it and then compresses the extracted files into a new archive with the same name as the original (I am using the open source archiver 7-Zip, which was installed in its default location): @if...
    by Valeri Hristov
    May 13, 2008 2 min read
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