的xmlns =htt​​p://schemas.microsoft.com/winfx/2006/xaml/$p$psentation
 

这是怎么URL映射到.NET命名空间？你能举一个例子如何做同样的事情自定义的.NET类/命名空间？它是一个必须的命名空间本身呢？

或者是一个物质或使用C＃别名如：

  using别名= FullNamespace
 

解决方案

映射使用的 XmlnsDefinition 属性。例如：

  [总成：XmlnsDefinition（http://schemas.microsoft.com/winfx/2006/xaml/$p$psentation，System.Windows.Data）
[总成：XmlnsDefinition（http://schemas.microsoft.com/winfx/2006/xaml/$p$psentation，System.Windows）
[总成：XmlnsDefinition（http://schemas.microsoft.com/winfx/2006/xaml/$p$psentation，System.Windows.Controls.Primitives）
[总成：XmlnsDefinition（http://schemas.microsoft.com/winfx/2006/xaml/$p$psentation，System.Windows.Media.Animation）
[总成：XmlnsDefinition（http://schemas.microsoft.com/winfx/2006/xaml/$p$psentation，System.Windows.Input）
 

（由presentationFramework.dll与反射提取code）

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

How is this url mapped to .NET namespaces? Can you give an example how to do the same thing for custom .NET classes/namespaces? Is it an attribute that has to be defined on the namespace itself?

Or is it a matter or using C# aliases as in?:

using alias = FullNamespace

The mapping is done using the XmlnsDefinition attribute. For instance :

[assembly: XmlnsDefinition("http://schemas.microsoft.com/winfx/2006/xaml/presentation", "System.Windows.Data")]
[assembly: XmlnsDefinition("http://schemas.microsoft.com/winfx/2006/xaml/presentation", "System.Windows")]
[assembly: XmlnsDefinition("http://schemas.microsoft.com/winfx/2006/xaml/presentation", "System.Windows.Controls.Primitives")]
[assembly: XmlnsDefinition("http://schemas.microsoft.com/winfx/2006/xaml/presentation", "System.Windows.Media.Animation")]
[assembly: XmlnsDefinition("http://schemas.microsoft.com/winfx/2006/xaml/presentation", "System.Windows.Input")]

(code from PresentationFramework.dll extracted with Reflector)