2005中,窗体继承有时,有的控件在子窗体中无法修改的问题,谁搞定了,或有好的方法,项目更新到一半出了这个问题不得不停止了,痛苦中...

[xietangz]

如题!

[wxdl1981]

继承窗体中Private的控件是不能修改的．
解决方法有两个：
1．　在基类窗体改成Protected;
2. 在程序运行时遍历Form.Controls属性，找到并修改控件．

[jiezhi]

和普通class的继承是类似的,你不可能去掉父类的成员,也不能改名字,但你可以改其它属性

[xietangz]

两位误解了,父FORM中控件的属性为public,继承的子FORM中此控件应是可以操作的,但现在子FORM中此控件为只读的,如dataGridView控件,操作一下就明白了!

[codehunter008]

This is a known design time limitation .

Form designer doesn’t allow to modify properties of all new for .Net Framework 2.0 controls
(ToolStrip, MenuStrip, ContextMenuStrip, StatusStrip, TableLayoutPanel, FlowLayoutPanel, DataGridView, BindingNavigator) belonging to inherited form even if the value of access modifier on parental form has been established to public or protected. Nevertheless all these properties can be modified in the program code of inherited form.
We don’t have the same problem with controls, which already existed in .Net 1.1 (TabControl, Panel, TextBox, Button… and others).


http://lab.msdn.microsoft.com/productfeedback/viewfeedback.aspx?feedbackid=02f9cd99-08a7-4efa-92d0-99a53b91d302#Workarounds



ToolStrip, MenuStrip, ContextMenuStrip, StatusStrip, TableLayoutPanel, FlowLayoutPanel, DataGridView, BindingNavigator

[wxdl1981]

那么就在运行的时候用代码的方式修改它, 或直接修改父窗体. 有疑问吗?

[cdo]

你把dataGridView改成protected或public的。

[levinknight]

在窗体继承中，2.0中新的控件都是不能修改属性的。微软说这是一个FEATURE。

http://lab.msdn.microsoft.com/productfeedback/viewfeedback.aspx?feedbackid=02f9cd99-08a7-4efa-92d0-99a53b91d302#Workarounds

...
Thank you for your comments. This is a known design time limitation that we will not be addressing in this Visual Studio 2005 release. We will look at improving this in future versions.

[addwing]

关注，学习。