我有这个XAML代码:
<ListView Name="ListBoxWithNews" ItemsSource="{Binding News}" Grid.Row="1" Grid.Column="1" Grid.RowSpan="2" Grid.ColumnSpan="2">
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Image Source="{Binding imageURL}" Width="75" Height="75" />
<StackPanel>
<TextBox Text="{Binding Title}" Width="200" />
<TextBox Text="{Binding Body}" Width="200" />
</StackPanel>
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
使用MVVM模式绑定控件。用户可以更改两个文本框的内容。当我需要时,是否有可能在某些时候从这些文本框中获取更新的文本?
答案 0 :(得分:1)
您的ViewModel应该实现INotifyPropertyChanged
并使用TwoWay
绑定,如下所示
<ListView Name="ListBoxWithNews" ItemsSource="{Binding News,Mode=TwoWay}" Grid.Row="1" Grid.Column="1" Grid.RowSpan="2" Grid.ColumnSpan="2">
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Image Source="{Binding imageURL,Mode=TwoWay}" Width="75" Height="75" />
<StackPanel>
<TextBox Text="{Binding Title,Mode=TwoWay}" Width="200" />
<TextBox Text="{Binding Body,Mode=TwoWay}" Width="200" />
</StackPanel>
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>