捕获异常 winform

可以捕获winform中的异常写到文本中

<p>可以捕获winform中的异常写到文本中</p>
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<pre><span style="color: #008080;user-select:none;"> 1</span> <span style="color: #000000;"> [STAThread]
</span><span style="color: #008080;user-select:none;"> 2</span>         <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> Main()
</span><span style="color: #008080;user-select:none;"> 3</span> <span style="color: #000000;">        {
</span><span style="color: #008080;user-select:none;"> 4</span>             <span style="color: #0000ff;">try</span>
<span style="color: #008080;user-select:none;"> 5</span> <span style="color: #000000;">            {
</span><span style="color: #008080;user-select:none;"> 6</span>                 <span style="color: #008000;">//</span><span style="color: #008000;">处理未捕获的异常  </span>
<span style="color: #008080;user-select:none;"> 7</span> <span style="color: #000000;">                Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
</span><span style="color: #008080;user-select:none;"> 8</span>                 <span style="color: #008000;">//</span><span style="color: #008000;">处理UI线程异常  </span>
<span style="color: #008080;user-select:none;"> 9</span>                 Application.ThreadException += <span style="color: #0000ff;">new</span><span style="color: #000000;"> System.Threading.ThreadExceptionEventHandler(Application_ThreadException);
</span><span style="color: #008080;user-select:none;">10</span>                 <span style="color: #008000;">//</span><span style="color: #008000;">处理非UI线程异常  </span>
<span style="color: #008080;user-select:none;">11</span>                 AppDomain.CurrentDomain.UnhandledException += <span style="color: #0000ff;">new</span><span style="color: #000000;"> UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
</span><span style="color: #008080;user-select:none;">12</span> <span style="color: #000000;">                Application.EnableVisualStyles();
</span><span style="color: #008080;user-select:none;">13</span>                 Application.SetCompatibleTextRenderingDefault(<span style="color: #0000ff;">false</span><span style="color: #000000;">);
</span><span style="color: #008080;user-select:none;">14</span>                 Application.Run(<span style="color: #0000ff;">new</span><span style="color: #000000;"> Form1());
</span><span style="color: #008080;user-select:none;">15</span> <span style="color: #000000;">            }
</span><span style="color: #008080;user-select:none;">16</span>             <span style="color: #0000ff;">catch</span><span style="color: #000000;"> (Exception ex)
</span><span style="color: #008080;user-select:none;">17</span> <span style="color: #000000;">            {
</span><span style="color: #008080;user-select:none;">18</span>                 <span style="color: #0000ff;">string</span> str = <span style="color: #800000;">""</span><span style="color: #000000;">;
</span><span style="color: #008080;user-select:none;">19</span>                 <span style="color: #0000ff;">string</span> strDateInfo = <span style="color: #800000;">"</span><span style="color: #800000;">出现应用程序未处理的异常：</span><span style="color: #800000;">"</span> + DateTime.Now.ToString() + <span style="color: #800000;">"</span><span style="color: #800000;">
</span><span style="color: #800000;">"</span><span style="color: #000000;">;
</span><span style="color: #008080;user-select:none;">20</span>                 <span style="color: #0000ff;">if</span> (ex != <span style="color: #0000ff;">null</span><span style="color: #000000;">)
</span><span style="color: #008080;user-select:none;">21</span> <span style="color: #000000;">                {
</span><span style="color: #008080;user-select:none;">22</span>                     str = <span style="color: #0000ff;">string</span>.Format(strDateInfo + <span style="color: #800000;">"</span><span style="color: #800000;">异常类型：{0}
异常消息：{1}
异常信息：{2}
</span><span style="color: #800000;">"</span><span style="color: #000000;">,
</span><span style="color: #008080;user-select:none;">23</span> <span style="color: #000000;">                       ex.GetType().Name, ex.Message, ex.StackTrace);
</span><span style="color: #008080;user-select:none;">24</span> <span style="color: #000000;">                }
</span><span style="color: #008080;user-select:none;">25</span>                 <span style="color: #0000ff;">else</span>
<span style="color: #008080;user-select:none;">26</span> <span style="color: #000000;">                {
</span><span style="color: #008080;user-select:none;">27</span>                     str = <span style="color: #0000ff;">string</span>.Format(<span style="color: #800000;">"</span><span style="color: #800000;">应用程序线程错误:{0}</span><span style="color: #800000;">"</span><span style="color: #000000;">, ex);
</span><span style="color: #008080;user-select:none;">28</span> <span style="color: #000000;">                }
</span><span style="color: #008080;user-select:none;">29</span> 
<span style="color: #008080;user-select:none;">30</span> <span style="color: #000000;">                writeLog(str);
</span><span style="color: #008080;user-select:none;">31</span>                 <span style="color: #008000;">//</span><span style="color: #008000;">frmBug f = new frmBug(str);</span><span style="color: #008000;">//</span><span style="color: #008000;">友好提示界面
</span><span style="color: #008080;user-select:none;">32</span>                 <span style="color: #008000;">//</span><span style="color: #008000;">f.ShowDialog();</span>
<span style="color: #008080;user-select:none;">33</span>                 MessageBox.Show(<span style="color: #800000;">"</span><span style="color: #800000;">发生致命错误，请及时联系作者！</span><span style="color: #800000;">"</span>, <span style="color: #800000;">"</span><span style="color: #800000;">系统错误</span><span style="color: #800000;">"</span><span style="color: #000000;">, MessageBoxButtons.OK, MessageBoxIcon.Error);
</span><span style="color: #008080;user-select:none;">34</span> <span style="color: #000000;">            }
</span><span style="color: #008080;user-select:none;">35</span> <span style="color: #000000;">        }
</span><span style="color: #008080;user-select:none;">36</span>         <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
<span style="color: #008080;user-select:none;">37</span>         <span style="color: #808080;">///</span><span style="color: #008000;">这就是我们要在发生未处理异常时处理的方法，我这是写出错详细信息到文本，如出错后弹出一个漂亮的出错提示窗体，给大家做个参考
</span><span style="color: #008080;user-select:none;">38</span>         <span style="color: #808080;">///</span><span style="color: #008000;">做法很多，可以是把出错详细信息记录到文本、数据库，发送出错邮件到作者信箱或出错后重新初始化等等
</span><span style="color: #008080;user-select:none;">39</span>         <span style="color: #808080;">///</span><span style="color: #008000;">这就是仁者见仁智者见智，大家自己做了。
</span><span style="color: #008080;user-select:none;">40</span>         <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
<span style="color: #008080;user-select:none;">41</span>         <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="sender"&gt;&lt;/param&gt;</span>
<span style="color: #008080;user-select:none;">42</span>         <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="e"&gt;&lt;/param&gt;</span>
<span style="color: #008080;user-select:none;">43</span>         <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">void</span> Application_ThreadException(<span style="color: #0000ff;">object</span><span style="color: #000000;"> sender, System.Threading.ThreadExceptionEventArgs e)
</span><span style="color: #008080;user-select:none;">44</span> <span style="color: #000000;">        {
</span><span style="color: #008080;user-select:none;">45</span> 
<span style="color: #008080;user-select:none;">46</span>             <span style="color: #0000ff;">string</span> str = <span style="color: #800000;">""</span><span style="color: #000000;">;
</span><span style="color: #008080;user-select:none;">47</span>             <span style="color: #0000ff;">string</span> strDateInfo = <span style="color: #800000;">"</span><span style="color: #800000;">出现应用程序未处理的异常：</span><span style="color: #800000;">"</span> + DateTime.Now.ToString() + <span style="color: #800000;">"</span><span style="color: #800000;">
</span><span style="color: #800000;">"</span><span style="color: #000000;">;
</span><span style="color: #008080;user-select:none;">48</span>             Exception error = e.Exception <span style="color: #0000ff;">as</span><span style="color: #000000;"> Exception;
</span><span style="color: #008080;user-select:none;">49</span>             <span style="color: #0000ff;">if</span> (error != <span style="color: #0000ff;">null</span><span style="color: #000000;">)
</span><span style="color: #008080;user-select:none;">50</span> <span style="color: #000000;">            {
</span><span style="color: #008080;user-select:none;">51</span>                 str = <span style="color: #0000ff;">string</span>.Format(strDateInfo + <span style="color: #800000;">"</span><span style="color: #800000;">异常类型：{0}
异常消息：{1}
异常信息：{2}
</span><span style="color: #800000;">"</span><span style="color: #000000;">,
</span><span style="color: #008080;user-select:none;">52</span> <span style="color: #000000;">                   error.GetType().Name, error.Message, error.StackTrace);
</span><span style="color: #008080;user-select:none;">53</span> <span style="color: #000000;">            }
</span><span style="color: #008080;user-select:none;">54</span>             <span style="color: #0000ff;">else</span>
<span style="color: #008080;user-select:none;">55</span> <span style="color: #000000;">            {
</span><span style="color: #008080;user-select:none;">56</span>                 str = <span style="color: #0000ff;">string</span>.Format(<span style="color: #800000;">"</span><span style="color: #800000;">应用程序线程错误:{0}</span><span style="color: #800000;">"</span><span style="color: #000000;">, e);
</span><span style="color: #008080;user-select:none;">57</span> <span style="color: #000000;">            }
</span><span style="color: #008080;user-select:none;">58</span> <span style="color: #000000;">            writeLog(str);
</span><span style="color: #008080;user-select:none;">59</span>             <span style="color: #008000;">//</span><span style="color: #008000;">frmBug f = new frmBug(str);</span><span style="color: #008000;">//</span><span style="color: #008000;">友好提示界面
</span><span style="color: #008080;user-select:none;">60</span>             <span style="color: #008000;">//</span><span style="color: #008000;">f.ShowDialog();</span>
<span style="color: #008080;user-select:none;">61</span>             MessageBox.Show(<span style="color: #800000;">"</span><span style="color: #800000;">发生致命错误，请及时联系作者！</span><span style="color: #800000;">"</span>, <span style="color: #800000;">"</span><span style="color: #800000;">系统错误</span><span style="color: #800000;">"</span><span style="color: #000000;">, MessageBoxButtons.OK, MessageBoxIcon.Error);
</span><span style="color: #008080;user-select:none;">62</span> <span style="color: #000000;">        }
</span><span style="color: #008080;user-select:none;">63</span>         <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">void</span> CurrentDomain_UnhandledException(<span style="color: #0000ff;">object</span><span style="color: #000000;"> sender, UnhandledExceptionEventArgs e)
</span><span style="color: #008080;user-select:none;">64</span> <span style="color: #000000;">        {
</span><span style="color: #008080;user-select:none;">65</span>             <span style="color: #0000ff;">string</span> str = <span style="color: #800000;">""</span><span style="color: #000000;">;
</span><span style="color: #008080;user-select:none;">66</span>             Exception error = e.ExceptionObject <span style="color: #0000ff;">as</span><span style="color: #000000;"> Exception;
</span><span style="color: #008080;user-select:none;">67</span>             <span style="color: #0000ff;">string</span> strDateInfo = <span style="color: #800000;">"</span><span style="color: #800000;">出现应用程序未处理的异常：</span><span style="color: #800000;">"</span> + DateTime.Now.ToString() + <span style="color: #800000;">"</span><span style="color: #800000;">
</span><span style="color: #800000;">"</span><span style="color: #000000;">;
</span><span style="color: #008080;user-select:none;">68</span>             <span style="color: #0000ff;">if</span> (error != <span style="color: #0000ff;">null</span><span style="color: #000000;">)
</span><span style="color: #008080;user-select:none;">69</span> <span style="color: #000000;">            {
</span><span style="color: #008080;user-select:none;">70</span>                 str = <span style="color: #0000ff;">string</span>.Format(strDateInfo + <span style="color: #800000;">"</span><span style="color: #800000;">Application UnhandledException:{0};

堆栈信息:{1}</span><span style="color: #800000;">"</span><span style="color: #000000;">, error.Message, error.StackTrace);
</span><span style="color: #008080;user-select:none;">71</span> <span style="color: #000000;">            }
</span><span style="color: #008080;user-select:none;">72</span>             <span style="color: #0000ff;">else</span>
<span style="color: #008080;user-select:none;">73</span> <span style="color: #000000;">            {
</span><span style="color: #008080;user-select:none;">74</span>                 str = <span style="color: #0000ff;">string</span>.Format(<span style="color: #800000;">"</span><span style="color: #800000;">Application UnhandledError:{0}</span><span style="color: #800000;">"</span><span style="color: #000000;">, e);
</span><span style="color: #008080;user-select:none;">75</span> <span style="color: #000000;">            }
</span><span style="color: #008080;user-select:none;">76</span> <span style="color: #000000;">            writeLog(str);
</span><span style="color: #008080;user-select:none;">77</span>             <span style="color: #008000;">//</span><span style="color: #008000;">frmBug f = new frmBug(str);</span><span style="color: #008000;">//</span><span style="color: #008000;">友好提示界面
</span><span style="color: #008080;user-select:none;">78</span>             <span style="color: #008000;">//</span><span style="color: #008000;">f.ShowDialog();</span>
<span style="color: #008080;user-select:none;">79</span>             MessageBox.Show(<span style="color: #800000;">"</span><span style="color: #800000;">发生致命错误，请停止当前操作并及时联系作者！</span><span style="color: #800000;">"</span>, <span style="color: #800000;">"</span><span style="color: #800000;">系统错误</span><span style="color: #800000;">"</span><span style="color: #000000;">, MessageBoxButtons.OK, MessageBoxIcon.Error);
</span><span style="color: #008080;user-select:none;">80</span> <span style="color: #000000;">        }
</span><span style="color: #008080;user-select:none;">81</span>         <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
<span style="color: #008080;user-select:none;">82</span>         <span style="color: #808080;">///</span><span style="color: #008000;"> 写文件
</span><span style="color: #008080;user-select:none;">83</span>         <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
<span style="color: #008080;user-select:none;">84</span>         <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="str"&gt;&lt;/param&gt;</span>
<span style="color: #008080;user-select:none;">85</span>         <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">void</span> writeLog(<span style="color: #0000ff;">string</span><span style="color: #000000;"> str)
</span><span style="color: #008080;user-select:none;">86</span> <span style="color: #000000;">        {
</span><span style="color: #008080;user-select:none;">87</span>             <span style="color: #0000ff;">if</span> (!Directory.Exists(<span style="color: #800000;">"</span><span style="color: #800000;">ErrLog</span><span style="color: #800000;">"</span><span style="color: #000000;">))
</span><span style="color: #008080;user-select:none;">88</span> <span style="color: #000000;">            {
</span><span style="color: #008080;user-select:none;">89</span>                 Directory.CreateDirectory(<span style="color: #800000;">"</span><span style="color: #800000;">ErrLog</span><span style="color: #800000;">"</span><span style="color: #000000;">);
</span><span style="color: #008080;user-select:none;">90</span> <span style="color: #000000;">            }
</span><span style="color: #008080;user-select:none;">91</span>             
<span style="color: #008080;user-select:none;">92</span>             <span style="color: #0000ff;">using</span> (StreamWriter sw = <span style="color: #0000ff;">new</span> StreamWriter(<span style="color: #800000;">@"</span><span style="color: #800000;">ErrLogErrLog-</span><span style="color: #800000;">"</span>+DateTime.Now.ToString(<span style="color: #800000;">"</span><span style="color: #800000;">yyyy-MM-dd</span><span style="color: #800000;">"</span>)+<span style="color: #800000;">"</span><span style="color: #800000;">.txt</span><span style="color: #800000;">"</span>, <span style="color: #0000ff;">true</span><span style="color: #000000;">, System.Text.Encoding.UTF8))
</span><span style="color: #008080;user-select:none;">93</span> <span style="color: #000000;">            {
</span><span style="color: #008080;user-select:none;">94</span> <span style="color: #000000;">                sw.WriteLine(str);
</span><span style="color: #008080;user-select:none;">95</span>                 sw.WriteLine(<span style="color: #800000;">"</span><span style="color: #800000;">---------------------------------------------------------</span><span style="color: #800000;">"</span><span style="color: #000000;">);
</span><span style="color: #008080;user-select:none;">96</span>                 
<span style="color: #008080;user-select:none;">97</span> <span style="color: #000000;">                sw.Close();
</span><span style="color: #008080;user-select:none;">98</span> <span style="color: #000000;">            }
</span><span style="color: #008080;user-select:none;">99</span>         }</pre>
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<span class="cnblogs_code_collapse">program</span></div>
<p>这个在program中的文件，程序的入口</p>

这个在program中的文件，程序的入口