此应用程序对于C#和SQL初学者非常有帮助效果。有加入，删除，升级数据-This application is helpful for C# and SQL beginner. It will help you to understand how to Add, Delete and Update data in SQL database using C#. How to search in database, Datagridview etc... It also contains the

创建一个Windows窗体应用程序，添加一个DataGridView控件到窗体上，设置控件的数据源为到数据库Attendance中CheckTime表的查询结果，运行程序即可得到查询结果-Database basic operation

可以合并datagridview 表头行相同数值的单元格。-Create a data-bound datagridview by dragging from the data sources window onto a form.

DataGridView DataGridView