自己开发的一个重载于现有TextBox框的控件，可以编译成DLL进行调用，实现了TextBox框的扩展，可以支持日期型输入、时间型输入、日期和时间型输入。-developed by ourselves in a heavy-duty frame of the existing TextBox controls, can be compiled into a DLL calls, the realization of the TextBox frame expanded to support the importation of-date, Time entry, the date and time-importation.