里面的一组中选择VB.NET默认的单选按钮 [英] VB.NET default radio button selected inside a group box

问题描述

我有一个WinForms应用程序（VS 2008，.NET 3.5），有两个不同的组框形式，每个组框里面是不同组的单选按钮。当我运行应用程序，第一组框会自动在它的第一个单选按钮被选中，第二组框没有默认选中一个单选按钮。

I have a WinForms application (VS 2008, .NET 3.5) that has a form with two different group boxes, and inside of each group box are different sets of radio buttons. When I run the application, the first group box automatically has the first radio button in it already selected, and the second group box does not have a radio button selected by default.

我走过的单选按钮和组框所有属性看，并不能找出不同的是，两者之间有什么。我想这两个组框将所有单选按钮未选中时的形式第一次打开。

I have looked through all the properties of the radio buttons and the group boxes, and cannot figure out what the difference is between the two. I would like both group boxes to have all radio buttons unselected when the form is first opened.

另外，我看遍了Designer.vb文件的形式，并不能发现什么异常中有任何事情。

Also, I looked through the Designer.vb file for the form, and could not find anything unusual going on in there either.

推荐答案

我有这个问题了。我只是手动设置所有单选按钮对象.Checked =假的Form_Shown事件。需要注意的是它必须的在的Form_Load事件，否则将无法正常工作，且单选按钮将使用默认设置。

I've had this issue, too. I just manually set all RadioButton objects to .Checked = False in the Form_Shown event. Note that it has to be after the Form_Load event or it won't work, and the RadioButton will be set with a default.

为什么呢？我不知道。在VB.NET可能存在的错误。

Why? I don't know. Perhaps a bug in VB.NET.

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