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我使用下面的代碼綁定如何在綁定的列表數據更改時通知XAML屬性?
XAML
<StackPanel x:Name="channelsRecordTimeData" Orientation="Vertical">
<ItemsControl x:Name="channelRecordTimeItems" ItemsSource="{Binding}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Grid x:Name="gridChannelRecordTimeItem" Width="{Binding Path=ChannelRecordTimeItemWidth}"
Height="{Binding Path=ChannelRecordTimeItemHeight}" Margin="{Binding Path=ChannelRecordTimeItemsMargin}"
HorizontalAlignment="Left" DataContext="{Binding Path=ListRecordTime}">
<Grid.Background>
<ImageBrush x:Name="gridChannelRecordTimeItemBgr" ImageSource="..\Resources\playback_grid_channel_record_time_item_bgr_normal.png"/>
</Grid.Background>
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</StackPanel>
C#
public class DATA
{
public double ChannelRecordTimeItemWidth { set; get; }
public double ChannelRecordTimeItemHeight { set; get; }
public Thickness ChannelRecordTimeItemsMargin { set; get; }
public List<RecordTime> ListRecordTime { set; get; }
public DATA()
{
ChannelRecordTimeItemWidth = 1000;
ChannelRecordTimeItemHeight = 20;
ChannelRecordTimeItemsMargin = new System.Windows.Thickness(0, 0, 0, 0);
ListRecordTime = null;
}
}
public static List<DATA> listDATA = new List<DATA>();
for(int i = 0 ; i < 10 ; i++)
{
DATA data = new DATA();
listDATA.Add(data);
}
channelRecordTimeItems.ItemsSource = listDATA;
channelRecordTimeItems.Items.Refresh();
此代碼會通知到XAML更新,當我使用的代碼行作爲
listDATA[0].ChannelRecordTimeItemWidth -= 15;
有任何方法可以自動更新XAML屬性,whe n我們在操作上的listData作爲
listDATA.RemoveAt();
listDATA.Add();
listDATA.Clear();
如果不調用以下兩個行代碼
channelRecordTimeItems.ItemsSource = listDATA;
channelRecordTimeItems.Items.Refresh();
謝謝!但是你能告訴我一些示例代碼嗎? – TTGroup
您只需要將'List'替換爲'ObservableCollection '。休息會照原樣運作。 –
另外,你可以參考最後的例子[這裏](http://msdn.microsoft.com/en-us/library/ms668604%28v=vs.110%29.aspx)。 –