爲什麼我的基本默認.acceptbutton不起作用？

Question

我有什麼：

我有兩個組框，每個組框中都有一個文本框。第三個文本框放在兩個組框之外。

按鈕1是默認的接受形式加載按鈕。

我需要什麼：

當按鈕1被點擊（或按下鍵進入），我需要按鈕2成爲默認接受按鈕。

我的問題：

按鈕3成爲默認的，儘管我的代碼接受按鈕而非按鈕2。

我的代碼：

Public Class Form1 

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load 
    GroupBox1.Enabled = True 
    GroupBox2.Enabled = False 
    Me.AcceptButton = Button1 
End Sub 

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click 
    MessageBox.Show("Button 1 pressed!") 
    GroupBox1.Enabled = False 
    GroupBox2.Enabled = True 
    Me.AcceptButton = Button2 
End Sub 

Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click 
    MessageBox.Show("Button 2 pressed!") 
    GroupBox1.Enabled = True 
    GroupBox2.Enabled = False 
    Me.AcceptButton = Button1 
End Sub 

End Class 

Answer 1

問題是你按下按鈕後1按鈕3獲得焦點。
您可以通過添加代碼將焦點鎖定到您在按鈕1單擊事件中需要的按鈕來修復它。 「Button2.Focus（）」等。

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click 
    MessageBox.Show("Button 1 pressed!") 
    GroupBox1.Enabled = False 
    GroupBox2.Enabled = True 
    Me.AcceptButton = Button2 
    Button2.Focus() 
End Sub 

Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click 
    MessageBox.Show("Button 2 pressed!") 
    GroupBox1.Enabled = True 
    GroupBox2.Enabled = False 
    Me.AcceptButton = Button1 
    Button1.Focus() 
End Sub