在我的機器上工作:D
我知道,不是一個很好的答案。也許看看我得到的示例代碼將幫助:
將datacontext設置爲MainViewModel並在堆棧面板上綁定IsVisible。我也必將按鈕,命令將在可見性屬性更改爲摺疊: (XAML)
<UserControl x:Class="MvvmLight1.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
Height="300"
Width="300"
DataContext="{Binding Main, Source={StaticResource Locator}}">
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="Skins/MainSkin.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</UserControl.Resources>
<Grid x:Name="LayoutRoot">
<StackPanel Height="100" Visibility="{Binding IsVisible}" HorizontalAlignment="Left" Margin="0,29,0,0" Name="stackPanel1" VerticalAlignment="Top" Width="200">
<TextBlock Height="23" Name="textBlock1" Text="I'm here!" />
</StackPanel>
<Button Content="Make the Stackpanel GO!" Height="23" HorizontalAlignment="Left" Name="button1" VerticalAlignment="Top" Width="158" Command="{Binding Path=MakeVisibleCommand}" />
</Grid>
沒有代碼隱藏,顯示課程。
而IsVisible屬性和MakeVisibleCommand財產上的視圖模型:
private Visibility _isVisible = Visibility.Visible;
public Visibility IsVisible
{
get
{
return _isVisible;
}
set
{
_isVisible = value;
RaisePropertyChanged("IsVisible");
}
}
public RelayCommand MakeVisibleCommand
{
get
{
return new RelayCommand(() => IsVisible = Visibility.Collapsed);
}
}
當然,請確保您的視圖模型類從ViewModelBase和所有的爵士樂繼承。您已經提到您的其他屬性綁定正確,但在調試時,始終注意「輸出」窗口中的綁定錯誤。
希望有幫助!
看起來應該對我有用。你有沒有在setter/getter中設置斷點來確保它按照你的預期更新?在輸出窗口中是否有任何綁定錯誤? – kenwarner 2011-05-13 01:28:40