Question

我在窗口上有一些3D元素，我想在某些时候删除一切，并有一个新的开始，我该怎么做？我在XAML上有这个：

<tools:TrackballDecorator>
    <Viewport3D x:Name="_Main3D"
                ClipToBounds="False"
                Camera="{StaticResource Other3D_MainCamera}">

        <!-- ModelVisual3D containing the lights -->
        <StaticResource ResourceKey="Other3D_Lights" />

        <!-- 
            Clickable 3D models (ModelUIElement3D): Cover, spine and edges
            They will work as if they were one object, so I'll use only one ModelUIElement3D to hold them and wire up their events.
        -->
        <ModelUIElement3D  MouseDown="Cover_MouseDown" x:Name="Book">
            <ModelUIElement3D.Model>
                <Model3DGroup>
                    <GeometryModel3D x:Name="_FrontCover"
                                     Geometry="{StaticResource MeshGeometry3D_Cover}"
                                     Material="{StaticResource Material_FrontCover}"
                                     Transform="{StaticResource Transform3D_FrontCover}" />
                    <GeometryModel3D x:Name="_BackCover"
                                     Geometry="{StaticResource MeshGeometry3D_Cover}"
                                     Material="{StaticResource Material_Cover}"
                                     Transform="{StaticResource Transform3D_BackCover}" />
                    <GeometryModel3D x:Name="_SpineCover"
                                     Geometry="{StaticResource MeshGeometry3D_Cover}"
                                     Material="{StaticResource Material_Cover}"
                                     Transform="{StaticResource Transform3D_SpineCover}" />
                    <GeometryModel3D x:Name="_LeftEdge"
                                     Geometry="{StaticResource MeshGeometry3D_Edge}"
                                     Material="{StaticResource Material_Edge}"
                                     Transform="{StaticResource Transform3D_Left}" />
                    <GeometryModel3D x:Name="_RightEdge"
                                     Geometry="{StaticResource MeshGeometry3D_Edge}"
                                     Material="{StaticResource Material_Edge}"
                                     Transform="{StaticResource Transform3D_Right}" />
                </Model3DGroup>
            </ModelUIElement3D.Model>
        </ModelUIElement3D>

        <!-- Interactive 3D models: Pages -->

        <Viewport2DVisual3D x:Name="_LeftPage"
                            Geometry="{StaticResource MeshGeometry3D_Plane}"
                            Transform="{StaticResource Transform3D_Left}">
            <Viewport2DVisual3D.Material>
                <DiffuseMaterial Viewport2DVisual3D.IsVisualHostMaterial="True" />
            </Viewport2DVisual3D.Material>
            <Viewport2DVisual3D.Visual>
                <Image Source="C:\Users\Public\Pictures\Sample Pictures\Chrysanthemum.jpg" Stretch="None" HorizontalAlignment="Center" VerticalAlignment="Center" />

            </Viewport2DVisual3D.Visual>
        </Viewport2DVisual3D>


        <Viewport2DVisual3D x:Name="_RightPage"
                            Geometry="{StaticResource MeshGeometry3D_Plane}"
                            Transform="{StaticResource Transform3D_Right}">
            <Viewport2DVisual3D.Material>
                <DiffuseMaterial Viewport2DVisual3D.IsVisualHostMaterial="True" />
            </Viewport2DVisual3D.Material>
            <Viewport2DVisual3D.Visual>
                <!--
                <TextBox Style="{StaticResource Control_PagesStyle}"
                         Padding="5,30,30,30"
                         MouseDoubleClick="Page_MouseDoubleClick" />
                 -->
                 <!-- The TextBox above was replaced by an InkCanvas -->
                <InkCanvas Style="{StaticResource Control_InkCanvasStyle}" PreviewMouseRightButtonDown="InkCanvas_PreviewMouseRightButtonDown"/>
            </Viewport2DVisual3D.Visual>
        </Viewport2DVisual3D>

    </Viewport3D>
</tools:TrackballDecorator>

但是当我尝试做

时

_LayoutRoot.Children.Remove()

它不允许它，因为它们不是UIElements。对此有何帮助？

Answer 1

解决，用过的： _LayoutRoot.Children.Clear（）;

它有效。

Clear（）从网格中删除所有元素，并使它们为垃圾收集做好准备。希望这有助于某人。

如何从wind中删除ModelUIElement3D和Viewport2DVisual3D

1 个答案: