asp textbox 是有焦点,点击button按钮提交, textbox 却不不执行失去焦点事件

Question

正确流程是:当所在单位的文本框失去焦点时会查到该单位的id然后后台获取这个id,
但现在有这样一种情况,文本框还没有失去焦点,直接去点击注册,这样会导致id获取不到,在后台进行数据转换时就会出错了

Answer 1

在父窗口中订阅 Form.MdiChildActivate Event。

Occurs when a multiple-document interface (MDI) child form is activated or closed within an MDI application.

You can use this event to perform tasks such as updating the contents of the MDI child form and changing the menu options available in the MDI parent form based on the status of the MDI child form that is activated.

以上来自msdn:
http://msdn.microsoft.com/en-us/library/system.windows.forms.form.mdichildactivate.aspx