ISupportInitialize and XAML

Written by Administrator

Tuesday, 13 April 2010

Article Index
ISupportInitialize and XAML
XAML Trees
Using XAML

Page 3 of 3

Using XAML

Now that we have a parameter-less constructor we can try the Shape class out with XAML.

The only thing we have to do is make sure that we include the namespace of the current project in the XAML file. Assuming that the project is called "trees" the Window tag has to be updated to read:

<Window x:Class="trees.Window1"
 xmlns="http://schemas.microsoft.com/
          winfx/2006/xaml/presentation"
 xmlns:x="http://schemas.microsoft.com/
          winfx/2006/xaml"
 xmlns:m="clr-namespace:trees
 "Title="Window1" Height="300" 
 Width="300">

Following this we can add a Tree object using something like:

<m:Tree L="50" s="0.8" t="90" dt="20" 
  d="8" X="150" Y="200" Stroke="Red" 
    Height="220" Width="289"></m:Tree>

If you try this you will see a tree in the Designer and at run time.

tree

A tree in the Designer

As for integrating the Tree class with XAML everything works as well as can be expected. If you compare the behavior with another Shape class-derived graphic such as Line you will see that it works just as well. In the Designer however there are some differences. In particular the five essential properties are listed in the Property Window and you can update them by entering new values but the Tree doesn't update unless you refresh the Designer.

There are a number of other facilities that don't appear to work properly in the Designer and to find out how to make these work we need to look more closely at the way the properties are defined - the subject of a future article. Follow us on Twitter or register on the site to find out when this article is published.

Bitmap Coding and Metatdata in WPF

Having looked at working with raw pixel data we turn our attention to formattted image files and how to code and decode both the pixel data and the meta data they contain.

+ Full Story

Custom Bitmap Effects - HLSL

In the article Custom Bitmap Effects - Getting started we discovered how to work with HLSL in WPF. Now we are in a position to write more sophisticated shaders and this means learning some more [ ... ]

+ Full Story

Getting Started with WPF

WPF Windows Presentation Foundation is the new way to do forms and all things graphical in .NET. You can still use Windows Forms but don't expect anything particularly new to be added to [ ... ]

+ Full Story

WPF .NET Core - Creating Objects With XAML

If you've never encountered WPF (Windows Presentation Foundation) you are missing a versatile tool. This article is part of a series devoted to it. XAML can be confusing - especially if you think it i [ ... ]

+ Full Story

Using the WPF .NET 4.0 DataGrid

WPF DataGrid (.NET 4) can be difficult to understand if you aren't used to thinking about objects and collections. This easy to follow introduction explains where the rows and columns have gone. [ ... ]

+ Full Story