WPF几种高级绑定

（1）Binding  + RelativeSource + AncestorType 模式  ， 根据关联源所指定的类型，可动态绑定指定类型的Path属性（Path可以省略），例子如下：

<TextBox x:Name="Date_TextBox" FontFamily="{TemplateBinding FontFamily}" FontSize="{TemplateBinding FontSize}" FontStretch="{TemplateBinding FontStretch}"  
                                     VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                                     IsReadOnly="{Binding IsDateReadOnly,RelativeSource={RelativeSource AncestorType=local:FreeDatePicker}}"  BorderThickness="0"  MaxLength="10"
                                     Text="{Binding Path=SelectedDate, Mode=TwoWay,Converter={StaticResource str_mutual_dt},   
                                     StringFormat='yyyy-MM-dd', RelativeSource={RelativeSource AncestorType=DatePicker}}"
                                     KeyDown="Date_TextBox_KeyDown" PreviewMouseDown="Date_TextBox_PreviewMouseDown"
                                     GotKeyboardFocus="Date_TextBox_GotKeyboardFocus" MouseDown="Date_TextBox_MouseDown" GotFocus="Date_TextBox_GotFocus"/>

（2）TemplateBinding模式（模板绑定），通常在控件模板中——>实现绑定父级的对应属性，例子如下：

FontSize="{TemplateBinding FontSize}"

（3）Binding  + RelativeSource + TemplatedParent模式 ，由于关联源指向 “模板的父级”，所以可动态绑定父级的Path属性（Path可以省略），例子如下：

Source="{Binding NormalImage,RelativeSource={RelativeSource TemplatedParent}}"/>