C＃用于TextBlocks数组的Eventhandler [英] C# Eventhandler for array of TextBlocks

问题描述

我正在尝试为一个TextBlocks数组添加可用的事件处理程序，但似乎它总是sHeadline [x]的最后一个元素来获取事件处理程序。例如，如果我有sHeadline [x]的10个元素，则总是sHeadline [9]获取事件处理程序。

如何解决此问题？

谢谢！

I am trying to add mutible eventhandlers for a array of TextBlocks, but it seems like it is always the last element of sHeadline[x] that gets the eventhandler. For example if I have 10 elements of sHeadline[x] it is always sHeadline[9] that gets the eventhandler.
How can I fix this?
Thanks!

void service_GetSearchForVesselCompleted(object sender, PositionServiceReference.GetSearchForVesselCompletedEventArgs e)
{
  // Number of results
  var numberOfResults = e.Result.Count;

  // Variables
  String vesselName;
  SolidColorBrush textColor = new SolidColorBrush(System.Windows.Media.Color.FromArgb(255, 30, 30, 30));

  // Create headlines
  TextBlock[] sHeadline = new TextBlock[numberOfResults];

  // Go trough results list
  for (int x = 0; x < numberOfResults; x++)
  {
    // Get vales
    vesselName = e.Result[x].Vessel_Name;

    sHeadline[x] = new TextBlock();
    sHeadline[x].TextDecorations = TextDecorations.Underline;
    sHeadline[x].FontSize = 12;
    sHeadline[x].Text = vesselName;
    sHeadline[x].Margin = new Thickness(9, 0, 0, 0);
    sHeadline[x].Height = 15;
    stackPanelSearchResults.Children.Add(sHeadline[x]);

    // Add listners
    sHeadline[x].MouseLeftButtonDown += new MouseButtonEventHandler((object senderH, MouseButtonEventArgs eH) => sHeadline_MouseLeftButtonDown(senderH, eH, vesselName, x));
  }
}

void sHeadline_MouseLeftButtonDown(object sender, MouseButtonEventArgs e, string inpVesselName, int x)
{
  labelStatus.Content = "Click on " + inpVesselName + " " + x;
}

推荐答案

这类答案回答同样的问题：



http://stackoverflow.com / questions / 4155691 / c-sharp-lambda-local-variable-value-not-take-when-you-think [ ^ ]



但基本上你没有在创建lambda时存储vesselname和x的值，而是自己的catual变量，因此它们会被所有这些处理程序的最后一个值所困。

This sort of answers the same question:

http://stackoverflow.com/questions/4155691/c-sharp-lambda-local-variable-value-not-taken-when-you-think[^]

but basically you are not storing the value of vesselname and x when you create the lambda but the catual variable themselves so they get stuck on their last value for all of those handlers.

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