VB.net textbox return hit（enter）event

Question

如何在TextBox上捕捉回車（enter）？

以下不起作用。我一直在收到錯誤「無法找到KeyPress事件」。

Private Sub TextBox_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox.KeyPress 
     If TextBox.Text Is Nothing Then Return 
     If TextBox.Text.Length = 6 And Asc(e.KeyChar) = 13 Then 
      ' Do something here 
     End If 

End Sub 

Answer 1

下面的代碼不工作：

Private Sub TextBox_KeyPress(ByVal KeyAscii As Integer) 

     If TextBox.Text Is Nothing Then Return 
     If TextBox.Text.Length = 6 And KeyAscii = 13 Then 
      ' Do something here 
     End If 

End Sub 

Answer 2

嘗試刪除文本框，並重新進入代碼

If TextBox.Text Is Nothing Then Return 
    If TextBox.Text.Length = 6 And Asc(e.KeyChar) = 13 Then 
     ' Do something here 
    End If 

爲應工作 - 你最有可能有一些搞砸與文本框中的名稱或按鍵聲明代碼。

我剛剛在一個新的文本框中檢查了代碼，它工作正常。

Answer 3

Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress 
    If e.KeyChar = Convert.ToChar(13) Then 
     If TextBox1.Text.Trim <> Nothing Then 
      'Do Something here 
     End If 
    End If