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WPF程序有时出现无限弹窗,提示已添加了具有相同键的项 RRS feed

  • Question

  • 我们的WPF程序基于.NET 3.5开发,是一个零售收银程序,在部分电脑(XP和windows7)上有时会出现无限弹窗,窗口提示:已添加了具有相同键的项

    捕获的日志显示如下:

    未捕获的UI异常:    在 System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
       在 System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
       在 System.Collections.Generic.Dictionary`2..ctor(IDictionary`2 dictionary, IEqualityComparer`1 comparer)
       在 Microsoft.Windows.Automation.Peers.DataGridAutomationPeer.GetItemPeers()
       在 Microsoft.Windows.Automation.Peers.DataGridAutomationPeer.GetChildrenCore()
       在 System.Windows.Automation.Peers.AutomationPeer.EnsureChildren()
       在 System.Windows.Automation.Peers.AutomationPeer.UpdateChildren()
       在 System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()
       在 System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()
       在 System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()
       在 System.Windows.ContextLayoutManager.fireAutomationEvents()
       在 System.Windows.ContextLayoutManager.UpdateLayout()
       在 System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
       在 System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork()
       在 System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
       在 System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
       在 System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
       在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
       在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)

     

     这个提示有时会不一样,有时提示"对 automation peer API的递归调用无效" ,有时提示"无法在正在进行内容生成时调用 StartAt",

    但基本都和System.Windows.Automation.Peers.AutomationPeer相关, 网上搜索说是和 WPFToolkit 这个组件有关,这个第三方组件我们的版本是 3.5.50211.1, 不知道其他社区朋友有没有遇到过这个问题?

    Thursday, November 15, 2018 4:02 AM

All replies

  • Hi   流云追风,

    This forum is an English forum. Please describe your problem in English. This will help other members to understand your question. 

    Please start a new thread and include all necessary code snippets for anyone else to be able to reproduce your issue from scratch along with a detailed description about the results including any exception messages

    Or you can post your question inChinese WPF forum.

    Thank your for your understanding.

    Best Regards,

    Yong Lu


    MSDN Community Support
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    Friday, November 16, 2018 3:09 AM
  • Ok,thank u
    Friday, November 16, 2018 3:50 AM