Visual Studio 2015的调试问题 [英] Debugging problem with Visual Studio 2015

问题描述

我正在使用Visual Studio 2015社区版。我只是尝试调试一段代码，但我在调试器上遇到了困难。我使用的代码是在帖子的最后。



代码在已加载事件中正确连接并执行的WPF窗口。我面临的症状：

• 线路断点
  
  

  Hi,
  
  I'm using Visual Studio 2015 Community edition. I just tried to debug a piece of code but I'm having a hard time with the debugger. The code I used is in the end of the post.
  
  The code is inside a Loaded event of a WPF window which is wired correctly and executed. Symptoms I'm facing:
  

  
  
  • Breakpoint on line
    

    System.Xml.Linq.XElement element1 = System.Xml.Linq.XElement.Parse(xml1);

    
    
    根本没有被击中

  • 线路上的断点
    
    

    
    is not hit at all

  • Breakpoint on line
    

    System.Xml.Linq.XElement element2 = System.Xml.Linq.XElement.Parse(xml2);

    
    
    正确点击

  • 在元素1上使用QuickWatch 我得到
    
    

    
    is hit correctly

  • Using QuickWatch on element1 I get
    

    error CS0103: The name 'element1' does not exist in the current context

  • 在元素2上使用QuickWatch 正常工作
  • 在 xml1 上使用QuickWatch给出
    
    

  • Using QuickWatch on element2 works correctly
  • Using QuickWatch on xml1 gives
    

    error CS0103: The name 'xml1' does not exist in the current context

  • 在 xml2上使用QuickWatch 正常工作
  • 最后的循环重复三次但System.Diag ...行根本没有执行

          private void Window_Loaded(object sender, RoutedEventArgs e)
          {
              string xml1 = @"<hostgroup id=""2080"">
      <instance_id>1</instance_id>
      <hostgroup_name>Avanade-Hypervisors</hostgroup_name>
      <members>
        <host id=""2061"">
          <host_name>ZACN-PSPR-HVR13</host_name>
        </host>
        <host id=""2062"">
          <host_name>ZACN-PSPR-HVR14</host_name>
        </host>
        <host id=""2063"">
          <host_name>ZACN-PSPR-HVR15</host_name>
        </host>
      </members>
  </hostgroup>";
  
              string xml2 = @"<hoststatuslist>
   <hoststatus id=""49294"">
      <host_id>2061</host_id>
      <name>ZACN-VSPR-WAP02</name>
      <display_name>ZACN-PSPR-HVR13</display_name>
      <alias>management_servers</alias>
      <status_update_time>2015-09-19 08:00:31</status_update_time>
      <last_state_change>2015-09-18 19:25:06</last_state_change>
      <last_hard_state_change>2015-09-16 18:18:04</last_hard_state_change>
      <last_time_up>2015-09-19 08:00:31</last_time_up>
      <last_time_down>2015-09-18 19:25:06</last_time_down>
    </hoststatus>
  <hoststatus id=""49294"">
      <host_id>2062</host_id>
      <name>ZACN-VSPR-WAP02</name>
      <display_name>ZACN-PSPR-HVR14</display_name>
      <alias>linux_servers</alias>
      <status_update_time>2015-09-19 06:00:31</status_update_time>
      <last_state_change>2015-09-18 19:25:06</last_state_change>
      <last_hard_state_change>2015-09-16 18:18:04</last_hard_state_change>
      <last_time_up>2015-09-19 08:00:31</last_time_up>
      <last_time_down>2015-09-18 19:25:06</last_time_down>
    </hoststatus>
  <hoststatus id=""49294"">
      <host_id>2063</host_id>
      <name>ZACN-VSPR-WAP02</name>
      <display_name>ZACN-PSPR-HVR15</display_name>
      <alias>localhost</alias>
      <status_update_time>2015-09-19 09:00:31</status_update_time>
      <last_state_change>2015-09-18 19:25:06</last_state_change>
      <last_hard_state_change>2015-09-16 18:18:04</last_hard_state_change>
      <last_time_up>2015-09-19 08:00:31</last_time_up>
      <last_time_down>2015-09-18 19:25:06</last_time_down>
    </hoststatus>
  </hoststatuslist>";
  
              System.Xml.Linq.XElement element1 = System.Xml.Linq.XElement.Parse(xml1);
  
              System.Xml.Linq.XElement element2 = System.Xml.Linq.XElement.Parse(xml2);
  
              var querya = from item1 in element1.Descendants("host")
                           join item2 in element2.Descendants("hoststatus")
                           on item1.Attribute("id").Value equals item2.Elements("host_id").First().Value
                           select new
                           {
                               Host = item2.Elements("display_name").First().Value,
                               UpTime = item2.Elements("last_time_up").First().Value,
                               Alias = item2.Elements("alias").First().Value
                           };
  
              foreach(var a in querya)
              {
                  System.Diagnostics.Debug.WriteLine(a.Host);
              }
          }

  推荐答案

  有什么提示我可以试试吗？
  
  将其关闭再重新打开？ ：笑：
  
  
  
  说真的，我会尝试一个干净而完整的重建，只是为了检查它是不是没有抛出摇晃而没有构建最新版本。 （在各种版本中，我已经和VS一起玩了几次 - 令人沮丧）。而且我也会把它关闭再重新打开......
  
  
  
  
  
  你试过看IL吗？看看它产生了什么？
  
  [/ edit]
  
  
  
  （根据要求发布为解决方案：谨慎提出建议为一个解决方案，所以我可以评论并接受它。）

  "Any hints what I could try?"
  Turn it off and back on again? :laugh:
  
  Seriously, I'd try a clean and full rebuild, just to check that it hasn't thrown a wobbly and not built the latest version. (I've had that a couple of times with VS in various versions - frustrating). And I'd turn it off and back on again as well...
  
  [edit]
  Have you tried looking at the IL to see what it has generated?
  [/edit]
  
  (Posted as solution as per request: "Care to put the suggestion as a solution so I could comment and accept it.")

  
  

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