目录问题现象描述日志示例错误复现步骤排查过程分析工具链与日志定位解决方案代码级修复配置调整环境优化扩展优化建议设计模式应用防御性编程监控告警机制多语言/框架适配方案单元测试与集成测试用例单元测试集成测试
Windows Forms\' CheckBox control implements both CheckedChanged and CheckStateChanged events. As far as I can tell, both fire when the checked status of the checkbox is changed.