public class Follower { 　　private List
      
        skillList; 　　Dictionary
       
         itemList = new Dictionary
        
         (); 　　public List
         
           SkillList { get { return this.skillList; } } 　　public Dictionary
          
            ItemList { get { return this.itemList; } }
          
         
        
       
      

如上是追随者的结构。如下绑定主手装备到XAML上

 注意的是代码中实际是ItemList["mainhand"].BorderBrush，而在XAML中，两个双引号是不能写的。

如果要绑定技能2到XAML上，如下，可以使用数字index。

 而如果要绑定collections的层级结构，则使用/即可。如下是msdn中path的解释

• Use the Path property to specify the source value you want to bind to:
  • In the simplest case, the Path property value is the name of the property of the source object to use for the binding, such as Path=PropertyName.
  • Subproperties of a property can be specified by a syntax similar to that used in C#. For instance, the clause Path=ShoppingCart.Order sets the binding to the subproperty Order of the object or property ShoppingCart.
  • To bind to an attached property, place parentheses around the attached property. For example, to bind to the attached property DockPanel.Dock, the syntax isPath=(DockPanel.Dock).
  • Indexers of a property can be specified within square brackets following the property name where the indexer is applied. For instance, the clause Path=ShoppingCart[0] sets the binding to the index that corresponds to how your property's internal indexing handles the literal string "0". Multiple indexers are also supported.
  • Indexers and subproperties can be mixed in a Path clause; for example, Path=ShoppingCart.ShippingInfo[MailingAddress,Street].
  • Inside indexers you can have multiple indexer parameters separated by commas (,). The type of each parameter can be specified with parentheses. For example, you can have Path="[(sys:Int32)42,(sys:Int32)24]", where sys is mapped to the System namespace.
  • When the source is a collection view, the current item can be specified with a slash (/). For example, the clause Path=/ sets the binding to the current item in the view.
  • When the source is a collection, this syntax specifies the current item of the default collection view.
  • Property names and slashes can be combined to traverse properties that are collections. For example, Path=/Offices/ManagerName specifies the current item of the source collection, which contains an Offices property that is also a collection. Its current item is an object that contains a ManagerName property. Optionally, a period (.) path can be used to bind to the current source. For example, Text="{Binding}" is equivalent to Text="{Binding Path=.}".

 

补充一下，WP8开发中，app bar的icon，要求很龌龊：透明、alpha、白色前景。

我在Mspaint中画不出来，不知道怎么搞透明背景。后来搞定的方式是，vs2012中打开sdk中带的icon，把原有的select/delete掉，然后画上我自己要求的文字。 

 代码如下，出现错误，不能operated在这个stream上

 

public static BitmapImage GetBitmapFromIsolatedFolderByName(string file)        {            BitmapImage image = new BitmapImage();                        var stream = localFolder.OpenFile(cachePath+"\\"+file, System.IO.FileMode.Open);            image.SetSource(stream);            stream.Close();            return image;        }

 重点在于红色那一行，如果不close，那么第二次就会发生这个exception。令人发指的是，发生exception的时候，callstack都是reflection的东西，看不到真正的root cause。