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Windows Phone 绑定

页面有ListPicker,TextBox3,LP里面有DataTemplate,DataTemplate里面有个TextBox1,TextBox2。ListPicker绑定的是一个类,该类属性name,value。选择ListPicker之后,把选择的结果中的value绑定到页面内的TextBox。
                    <toolkit:ListPicker Height="72" x:Name="lpInterestRatesZCZQ" Margin="12,0" >
 
                            <toolkit:ListPicker.Resources>
 
                            <DataTemplate x:Key="DataTemplate2">
 
                                            <Grid Height="80" Width="480">
 
                                    <TextBlock x:Name="tbName" Margin="12,12,144,12" TextWrapping="Wrap" Text="{Binding item}" FontSize="37.333"/>
 
                                    <TextBlock x:Name="tbValue" Margin="0,12,8,12" TextWrapping="Wrap" Text="{Binding value}" HorizontalAlignment="Right" Width="125" FontSize="37.333"/>
 
                                            </Grid>
 
                                    </DataTemplate>
 
                                    <DataTemplate x:Key="DataTemplate1">
 
                                <Grid>
 
                                    <TextBlock x:Name="tbName" TextWrapping="Wrap" Text="{Binding item}" FontSize="25.333"/>
 
                                            </Grid>
 
                                    </DataTemplate>
 
                            </toolkit:ListPicker.Resources>
 
                            <toolkit:ListPicker.ItemTemplate>
 
                            <StaticResource ResourceKey="DataTemplate1"/>
 
                            </toolkit:ListPicker.ItemTemplate>
 
                            <toolkit:ListPicker.FullModeItemTemplate>
 
                                    <StaticResource ResourceKey="DataTemplate2"/>
 
                            </toolkit:ListPicker.FullModeItemTemplate>
 
                    </toolkit:ListPicker>
--------------------编程问答-------------------- 用mvvm的话,在选择事件里更新一下绑定即可 --------------------编程问答--------------------
引用 1 楼 cuit 的回复:
用mvvm的话,在选择事件里更新一下绑定即可

能具体点吗,我对mvvm懂的不是很多。 --------------------编程问答-------------------- 老师,请教您,如何在Grid中绑定他的背景图片啊,在C#后置代码里动太赋值,并将其显示出来,谢谢……
补充:移动开发 ,  Windows Phone
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