Question

大家。我有一个listBox。当我尝试显示61项时 - 它运行正常。但当它达到62或更高时 - 应用程序随着

而下降

System.Windows.Markup.XamlParseException occurred
  Message= [Line: 0 Position: 0]
  LineNumber=0
  LinePosition=0
  StackTrace:
       at MS.Internal.XcpImports.CheckHResult(UInt32 hr)
       at MS.Internal.XcpImports.FrameworkElement_MeasureOverride(FrameworkElement element, Size availableSize)
       at System.Windows.FrameworkElement.MeasureOverride(Size availableSize)
       at System.Windows.FrameworkElement.MeasureOverride(IntPtr nativeTarget, Single inWidth, Single inHeight, Single& outWidth, Single& outHeight)
       at MS.Internal.XcpImports.MeasureNative(IntPtr element, Single inWidth, Single inHeight)
       at MS.Internal.XcpImports.UIElement_Measure(UIElement element, Size availableSize)
       at System.Windows.UIElement.Measure(Size availableSize)
       at System.Windows.Controls.VirtualizingStackPanel.MeasureChild(UIElement child, Size layoutSlotSize)
       at System.Windows.Controls.VirtualizingStackPanel.MeasureOverride(Size constraint)
       at System.Windows.FrameworkElement.MeasureOverride(IntPtr nativeTarget, Single inWidth, Single inHeight, Single& outWidth, Single& outHeight)

它能是什么 - 我毫无头绪......它随机出现。我可以滚动listBox结束，看到最后一个元素，当我向后滚动时 - 它会抛出错误。

Answer 1

您很可能在列表框中有可变高度的项目。您可以尝试将ListBox.ItemsPanel更改为StackPanel而不是VirtualizingStackPanel。这将允许可变高度的项目，但有一个权衡，因为如果列表中有很多项目，那么你将增加启动时间和内存使用。

WP7上的ListBox问题 - 发生了System.Windows.Markup.XamlParseException

1 个答案: