博客园_OSCAR_NJU奔向远方，希望不会错过沿途的风景。。。http://feed.cnblogs.com/blog/u/12137/rss2010-09-10T17:30:02Z死刑犯http://www.cnblogs.com/OSCAR_NJU/CNBlogs BlogServerhttp://www.cnblogs.com/OSCAR_NJU/archive/2010/09/11/1823730.htmlDataGrid排序错误：必须至少有一个对象实现当DataGrid使用对象进行了分组时候，该对象类型必须实现IComparable 接口，否则出错：必须至少有一个对象实现。代码如下：代码Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->ObservableCollection<TaskProje...2010-09-10T17:30:00Z2010-09-10T17:30:00Z死刑犯http://www.cnblogs.com/OSCAR_NJU/<p>当DataGrid使用对象进行了分组时候，该对象类型必须实现 IComparable 接口，否则出错：必须至少有一个对象实现。</p><p></p><p>代码如下：</p><p></p><div style="background-color: #F5F5F5;border: 1px solid #CCCCCC;padding-left:5px;padding-right:5px;" onclick="cnblogs_code_show('84d43da6-acd0-4b38-b8d2-a408925bb0ce')"><img src="http://images.cnblogs.com/OutliningIndicators/ExpandedBlockStart.gif" id="code_img_opened_4be8bbd2-91df-4f32-8410-9804c132cf58" onclick="cnblogs_code_hide('4be8bbd2-91df-4f32-8410-9804c132cf58',event)" style="display:none"><div id="cnblogs_code_open_4be8bbd2-91df-4f32-8410-9804c132cf58" ><div><!--<br/ /><br/ />Code highlighting produced by Actipro CodeHighlighter (freeware)<br/ />http://www.CodeHighlighter.com/<br/ /><br/ />--><span style="color: #0000FF;">public</span><span style="color: #000000;"> </span><span style="color: #0000FF;">class</span><span style="color: #000000;"> TaskProject : IComparable, IComparable</span><span style="color: #000000;"><</span><span style="color: #000000;">TaskProject</span><span style="color: #000000;">></span><span style="color: #000000;"><br /> {<br /> </span><span style="color: #0000FF;">public</span><span style="color: #000000;"> </span><span style="color: #0000FF;">int</span><span style="color: #000000;"> ProjectId { </span><span style="color: #0000FF;">get</span><span style="color: #000000;">; </span><span style="color: #0000FF;">set</span><span style="color: #000000;">; }<br /> </span><span style="color: #0000FF;">public</span><span style="color: #000000;"> </span><span style="color: #0000FF;">string</span><span style="color: #000000;"> ProjectName { </span><span style="color: #0000FF;">get</span><span style="color: #000000;">; </span><span style="color: #0000FF;">set</span><span style="color: #000000;">; }<br /><br /> </span><span style="color: #0000FF;">public</span><span style="color: #000000;"> </span><span style="color: #0000FF;">override</span><span style="color: #000000;"> </span><span style="color: #0000FF;">string</span><span style="color: #000000;"> ToString()<br /> {<br /> </span><span style="color: #0000FF;">return</span><span style="color: #000000;"> </span><span style="color: #0000FF;">this</span><span style="color: #000000;">.ProjectName;<br /> }<br /><br /> </span><span style="color: #0000FF;">#region</span><span style="color: #000000;"> IComparable 成员</span><span style="color: #000000;"><br /><br /> </span><span style="color: #0000FF;">public</span><span style="color: #000000;"> </span><span style="color: #0000FF;">int</span><span style="color: #000000;"> CompareTo(</span><span style="color: #0000FF;">object</span><span style="color: #000000;"> obj)<br /> {<br /> </span><span style="color: #0000FF;">return</span><span style="color: #000000;"> </span><span style="color: #0000FF;">this</span><span style="color: #000000;">.CompareTo(obj </span><span style="color: #0000FF;">as</span><span style="color: #000000;"> TaskProject);<br /> }<br /><br /> </span><span style="color: #0000FF;">#endregion</span><span style="color: #000000;"><br /><br /> </span><span style="color: #0000FF;">#region</span><span style="color: #000000;"> IComparable<TaskProject> 成员</span><span style="color: #000000;"><br /><br /> </span><span style="color: #0000FF;">public</span><span style="color: #000000;"> </span><span style="color: #0000FF;">int</span><span style="color: #000000;"> CompareTo(TaskProject other)<br /> {<br /> </span><span style="color: #0000FF;">if</span><span style="color: #000000;"> (other </span><span style="color: #000000;">==</span><span style="color: #000000;"> </span><span style="color: #0000FF;">null</span><span style="color: #000000;">)<br /> {<br /> </span><span style="color: #0000FF;">return</span><span style="color: #000000;"> </span><span style="color: #000000;">-</span><span style="color: #800080;">1</span><span style="color: #000000;">;<br /> }<br /> </span><span style="color: #0000FF;">return</span><span style="color: #000000;"> </span><span style="color: #0000FF;">this</span><span style="color: #000000;">.ProjectId </span><span style="color: #000000;">-</span><span style="color: #000000;"> other.ProjectId;<br /> }<br /><br /> </span><span style="color: #0000FF;">#endregion</span><span style="color: #000000;"><br /> }</span></div></div></div><p></p><p></p><p></p><img src="http://www.cnblogs.com/OSCAR_NJU/aggbug/1823730.html?type=1" width="1" height="1" alt=""/><p><a href="http://www.cnblogs.com/OSCAR_NJU/archive/2010/09/11/1823730.html" target="_blank">本文链接</a></p>http://www.cnblogs.com/OSCAR_NJU/archive/2009/01/05/1369390.html在VSS2005中导出VS2003 Web系统的问题2009-01-05T06:19:00Z2009-01-05T06:19:00Z死刑犯http://www.cnblogs.com/OSCAR_NJU/http://www.cnblogs.com/OSCAR_NJU/archive/2008/06/24/1229060.html英文OS中的中文CHM文件可能打不开2008-06-24T08:37:00Z2008-06-24T08:37:00Z死刑犯http://www.cnblogs.com/OSCAR_NJU/http://www.cnblogs.com/OSCAR_NJU/archive/2008/04/02/1134231.html使用VS2005开发自定义控件2008-04-02T03:30:00Z2008-04-02T03:30:00Z死刑犯http://www.cnblogs.com/OSCAR_NJU/http://www.cnblogs.com/OSCAR_NJU/archive/2008/03/18/1111558.htmlSQL Server和Oracle中事务处理的特点简单描述了数据库系统中的事务以及在SQL Server和Oracle中的区别。2008-03-18T06:25:00Z2008-03-18T06:25:00Z死刑犯http://www.cnblogs.com/OSCAR_NJU/http://www.cnblogs.com/OSCAR_NJU/archive/2008/03/13/1103889.htmlWinCE开发随笔（一）WinCE开发随笔（一）2008-03-13T08:05:00Z2008-03-13T08:05:00Z死刑犯http://www.cnblogs.com/OSCAR_NJU/http://www.cnblogs.com/OSCAR_NJU/archive/2008/03/11/1099773.htmlClearCase项目管理介绍软件开发过程中配置管理是一项十分重要的内容，选择一个合适的配置管理工具也十分必要。
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