修改属性之后保存web part时报错

错误信息：Cannot save the property settings for this Web Part. Exception occurred

分析：很可能是用户写web part的时候错误的析构了SPSite对象

解决：

将如下的编程方式修改一下

=========================
1: SPSite site = SPContext.Current.Site;
2: // do something with it
3: site.Dispose(); //throw an error upon dispose:

================================
1: SPSite site = new SPSite(SPContext.Current.Site.ID);
2: // do something
3: site.Dispose();//This code will not throw an error on dispose

更多信息请参考最佳实践

http://msdn.microsoft.com/en-us/library/bb687949.aspx

http://msdn.microsoft.com/en-us/library/aa973248.aspx