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我已經創建了一個自定義控件。這是導致問題的方法： -當我反覆按3-4次/秒時出現錯誤。動畫問題
private void Update(object newContent)
{
//lock (this)
//{
if (grid == null)
base.ApplyTemplate();
ContentControl oldWrapper = this.currentWrappedControl;
if (oldWrapper != null)
{
VisualStateGroup layoutStatesGroup = findNameInWrapper(oldWrapper, "LayoutStates") as VisualStateGroup;
if (layoutStatesGroup == null)
{
this.grid.Children.Remove(oldWrapper);
setContent(oldWrapper, null);
}
else
{
layoutStatesGroup.CurrentStateChanged += delegate(object sender, VisualStateChangedEventArgs args)
{
this.grid.Children.Remove(oldWrapper);
setContent(oldWrapper, null);
};
VisualStateManager.GoToState(oldWrapper, "BeforeUnloaded", true);
}
}
ContentControl newWrapper = new ContentControl();
newWrapper.Style = TransitionStyle;
newWrapper.HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch;
newWrapper.VerticalAlignment = System.Windows.VerticalAlignment.Stretch;
grid.Children.Add(newWrapper);
newWrapper.ApplyTemplate();
if (this.TransitionStyle != null)
{
setContent(newWrapper, newContent);
if (oldWrapper != null)
{
VisualStateManager.GoToState(newWrapper, "BeforeLoaded", false);
VisualStateManager.GoToState(newWrapper, "AfterLoaded", true);
}
}
this.currentWrappedControl = newWrapper;
//}
}
如果我慢慢地按下按鈕，一切正常。但如果我不安地按下按鈕它崩潰，我得到這個錯誤： -
Microsoft JScript runtime error: Unhandled Error in Silverlight Application Value does not fall within the expected range. at MS.Internal.XcpImports.CheckHResult(UInt32 hr)
at MS.Internal.XcpImports.SetValue(IManagedPeerBase obj, DependencyProperty property, DependencyObject doh)
at MS.Internal.XcpImports.SetValue(IManagedPeerBase doh, DependencyProperty property, Object obj)
at System.Windows.DependencyObject.SetObjectValueToCore(DependencyProperty dp, Object value)
at System.Windows.DependencyObject.SetEffectiveValue(DependencyProperty property, EffectiveValueEntry& newEntry, Object newValue)
at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet)
at System.Windows.Controls.ContentPresenter.set_Content(Object value)
at SilverlightTransitionEffect.TransitionalControl.setContent(ContentControl control, Object Content)
at SilverlightTransitionEffect.TransitionalControl.Update(Object newContent)
at SilverlightTransitionEffect.TransitionalControl.OnContentChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
at System.Windows.DependencyObject.RefreshExpression(DependencyProperty dp)
at System.Windows.DependencyPropertyChangedWeakListener.SourcePropertyChanged(DependencyObject c, DependencyProperty dp)
at System.Windows.DependencyObject.OnPropertyChanged(DependencyProperty dp)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyProperty dp)
at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet)
at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
at SilverlightTransitionEffect.Slideshow.set_SelectedItem(Object value)
at SilverlightTransitionEffect.Slideshow.btnRightButton_Click(Object sender, RoutedEventArgs e)
at System.Windows.Controls.Primitives.ButtonBase.OnClick()
at System.Windows.Controls.Button.OnClick()
at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
at System.Windows.Controls.Control.OnMouseLeftButtonUp(Control ctrl, EventArgs e)
at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName)
我甚至試過鎖定對象，但仍然是同樣的問題。
這是我的視覺狀態： -
<Style x:Key="SlideTemplate" TargetType="ContentControl">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ContentControl">
<Grid x:Name="grid" Background="{TemplateBinding Background}">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="LayoutStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0:0:0.5">
<VisualTransition.GeneratedEasingFunction>
<CubicEase EasingMode="EaseOut"/>
</VisualTransition.GeneratedEasingFunction>
</VisualTransition>
</VisualStateGroup.Transitions>
<VisualState x:Name="BeforeLoaded">
<Storyboard >
<DoubleAnimation Duration="0" To="500" Storyboard.TargetProperty="(UIElement.RenderTransform).(CompositeTransform.TranslateX)" Storyboard.TargetName="grid"/>
<DoubleAnimation Duration="0" To="0" Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="grid"/>
</Storyboard>
</VisualState>
<VisualState x:Name="AfterLoaded"/>
<VisualState x:Name="BeforeUnloaded">
<Storyboard>
<DoubleAnimation Duration="0" To="-1000" Storyboard.TargetProperty="(UIElement.RenderTransform).(CompositeTransform.TranslateX)" Storyboard.TargetName="grid"/>
<DoubleAnimation Duration="0" To="0" Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="grid"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid.RenderTransform>
<CompositeTransform/>
</Grid.RenderTransform>
<ContentPresenter x:Name="contentPresenter" Content="{TemplateBinding Content}" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
感謝提前:)
喔！你忘了告訴我，當我點擊按鈕時運行的動畫。