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我有名单,在我的数据类项目奇怪的问题:Silverlight。与结合
public ObservableCollection<Node> NodesFromDatabase
{
get
{
if (_nodesFromDatabase == null)
_nodesFromDatabase =GenerateMenuNodes();
return _nodesFromDatabase ;
}
set
{
_nodesFromDatabase = value;
}
}
而且在控制财产,我想结合这个数据:
public ObservableCollection<Node> Nodes
{
get { return (ObservableCollection<Node>)GetValue(NodesProperty); }
set
{
SetValue(NodesProperty, value);
}
}
private static DependencyProperty NodesProperty =
DependencyProperty.Register(
"Nodes",
typeof(ObservableCollection<Node>),
typeof(Control),new PropertyMetadata(new ObservableCollection<Node>()));
在XAML中,我有这样的代码:
<Grid Background="White">
<Grid.DataContext>
<local:DataFromDataBase x:Name="database" />
</Grid.DataContext>
<local:Control Nodes="{Binding NodesFromDatabase}" />
</Grid>
而我在这段代码背后有奇怪的逻辑。
My NodesFromDatabase属性在get语句中触发,但控制节点设置语句不会触发!我在做什么错了?