Silverlight ComboBox Bug - Value does not fall within the expected range_system.argumentexception: value does not fall with-优快云博客

本文链接：https://blog.youkuaiyun.com/jameszhou/article/details/4319915

本文描述了Silverlight2中ComboBox的一个Bug，并提供了详细的错误信息及解决方法。该Bug涉及Selector组件在某些情况下无法正确滚动到指定项的问题。

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Silverlight 2 Combobox 有一个bug, 今天被我遇到了，下面是IE错误信息：

Error: Unhandled Error in Silverlight 2 Application
Code: 4004
Category: ManagedRuntimeError
Message: System.ArgumentException: Value does not fall within the expected range.
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodPack(IntPtr objectPtr, String methodName, Object[] rawData)
   at MS.Internal.XcpImports.UIElement_TransformToVisual(UIElement element, UIElement visual)
   at System.Windows.UIElement.TransformToVisual(UIElement visual)
   at System.Windows.Controls.Primitives.Selector.IsOnCurrentPage(Int32 index, Rect& itemsHostRect, Rect& listBoxItemRect)
   at System.Windows.Controls.Primitives.Selector.ScrollIntoView(Int32 index)
   at System.Windows.Controls.Primitives.Selector.SetFocusedItem(Int32 index, Boolean scrollIntoView)
   at System.Windows.Controls.ComboBox.PrepareContainerForItemOverride(DependencyObject element, Object item)
   at System.Windows.Controls.ItemsControl.UpdateContainerForItem(Int32 index)
   at System.Windows.Controls.ItemsControl.RecreateVisualChildren()
   at System.Windows.Controls.ItemsControl.RecreateVisualChildren(IntPtr unmanagedObj)

有人找到了一个应对办法：http://compiledexperience.com/Blog/post/Gotcha-when-databinding-a-ComboBox-in-Silverlight.aspx

试过后可以解决我的问题