單選按鈕不保持選中

Question

我​​3210寫代碼（使用Visual Studio 2010），現在我有這樣的問題：

我的形式投入3 RadioButtons，我選擇按鈕，進入另一種形式（應用程序有幾種形式）。 問題是，當我回到包含RadioButtons（意思是關閉當前窗體並顯示窗體）的第一個窗體中時，我選擇的按鈕不再被選中，我想保持選中狀態。這裏有什麼問題？我必須做什麼？

Answer 1

你可以使用my.settings。 創建一個名爲難度

而且在形式負載檢查你儲存在那裏什麼設置。

像這樣。

私人小組Form1_Load的（發送者爲對象，E作爲EventArgs的）把手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