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我正在使用adorner圖層來在我的網格(WPF網格)上生成網格(例如,整個屏幕上的框)。WPF中的裝扮者,isEnabled不工作?
我希望這隻在標記複選框時才顯示。但是,當我綁定「IsEnabled」屬性時,沒有任何反應。即使我將IsEnabled設置爲false,網格疊加層仍然顯示!
這是我從我的mainWindow.xaml做,注意的IsEnabled設置爲false,但它仍然顯示:
<Grid>
<!--Adornerdecorator is made to make sure the adorner is in the background, and not the foreground-->
<AdornerDecorator>
<View:GridWithRulerxaml IsEnabled="False" />
</AdornerDecorator>
<ItemsControl ItemsSource="{Binding Classes}"/>
<ItemsControl ItemsSource="{Binding Edges}"/>
</Grid>
這是裝飾器用戶控件:
namespace UMLDesigner.View
{
/// <summary>
/// Interaction logic for GridWithRulerxaml.xaml
/// </summary>
public partial class GridWithRulerxaml : UserControl
{
public GridWithRulerxaml()
{
InitializeComponent();
//Loaded event is necessary as Adorner is null until control is shown.
Loaded += GridWithRulerxaml_Loaded;
}
void GridWithRulerxaml_Loaded(object sender, RoutedEventArgs e)
{
var adornerLayer = AdornerLayer.GetAdornerLayer(this);
var rulerAdorner = new AlignmentAdorner(this);
adornerLayer.Add(rulerAdorner);
}
}
}
最後是裝飾者本身:
namespace UMLDesigner.Utilities
{
public class AlignmentAdorner : Adorner
{
private FrameworkElement element;
public AlignmentAdorner(UIElement el)
: base(el)
{
element = el as FrameworkElement;
}
protected override void OnRender(System.Windows.Media.DrawingContext drawingContext)
{
base.OnRender(drawingContext);
double height = element.ActualHeight;
double width = element.ActualWidth;
double linesHorizontal = height/50;
double linesVertical = width/50;
var pen = new Pen(Brushes.LightGray, 1) { StartLineCap = PenLineCap.Triangle, EndLineCap = PenLineCap.Triangle };
int offset = 0;
for (int i = 0; i <= linesVertical; ++i)
{
offset = offset + 50;
drawingContext.DrawLine(pen, new Point(offset, 0), new Point(offset, height));
}
offset = 0;
for (int i = 0; i <= linesHorizontal; ++i)
{
offset = offset + 50;
drawingContext.DrawLine(pen, new Point(0, offset), new Point(width, offset));
}
}
}
}
我真的希望你能幫我在這裏的傢伙。
你需要更多信息嗎? –