单选按钮不会被检查

Question

我在Visual Basic中编写了一个代码（使用visual studio 2010），现在我遇到了这个问题：

我在表单中添加了3 RadioButtons，我选择了一个按钮并以另一种形式（应用程序有多种形式）。 问题是，当我以第一种形式返回时，包含RadioButtons（意思是，关闭当前表单并显示该表单），我选择的按钮不再被选中，我想保持选中状态。这有什么问题？我该怎么办？

Answer 1

你可以使用my.settings。 进行名为“难度”的设置

在表单加载时检查您存储的内容。

喜欢这个。

Private Sub Form1_Load（sender as Object，e As EventArgs）处理MyBase.Load

    If My.Settings.Difficulty = "Easy" Then
        RadioButton1.Checked = True

    ElseIf My.Settings.Difficulty = "Hard" Then
        RadioButton2.Checked = True

    ElseIf My.Settings.Difficulty = "Unreal" Then
        RadioButton3.Checked = True

    End If
End Sub


Private Sub RadioButton1_MouseClick(sender As Object, e As MouseEventArgs) Handles RadioButton1.MouseClick
    My.Settings.Difficulty = "Easy"
    RadioButton2.Checked = False
    RadioButton3.Checked = False
    My.Settings.Save()
End Sub

Private Sub RadioButton2_MouseClick(sender As Object, e As MouseEventArgs) Handles RadioButton2.MouseClick
    My.Settings.Difficulty = "Hard"
    RadioButton1.Checked = False
    RadioButton3.Checked = False
    My.Settings.Save()
End Sub

Private Sub RadioButton3_MouseClick(sender As Object, e As MouseEventArgs) Handles RadioButton3.MouseClick
    My.Settings.Difficulty = "Unreal"
    RadioButton1.Checked = False
    RadioButton2.Checked = False
    My.Settings.Save()
End Sub