おそらくMaskedTextBox
をお探しですか?したがって、この形式でのみテキストを入力できます。
Masked Textbox MSDN
Private Sub MaskedTextBox1_MaskInputRejected(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MaskInputRejectedEventArgs) Handles MaskedTextBox1.MaskInputRejected
If (Me.MaskedTextBox1.MaskFull) Then
ToolTip1.ToolTipTitle = "Input Rejected - Too Much Data"
ToolTip1.Show("You cannot enter any more data into the date field. Delete some characters in order to insert more data.", Me.MaskedTextBox1, Me.MaskedTextBox1.Location.X, Me.MaskedTextBox1.Location.Y, 5000)
ElseIf (e.Position = Me.MaskedTextBox1.Mask.Length) Then
ToolTip1.ToolTipTitle = "Input Rejected - End of Field"
ToolTip1.Show("You cannot add extra characters to the end of this date field.", Me.MaskedTextBox1, 0, -20, 5000)
Else
ToolTip1.ToolTipTitle = "Input Rejected"
ToolTip1.Show("You can only add numeric characters (0-9) into this date field.", Me.MaskedTextBox1, 0, -20, 5000)
End If
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.ToolTip1.IsBalloon = True
Me.MaskedTextBox1.Mask = "00/00/0000"
End Sub
Private Sub MaskedTextBox1_KeyDown(ByVal sender As Object, ByVal e As KeyEventArgs) Handles MaskedTextBox1.KeyDown
' The balloon tip is visible for five seconds; if the user types any data before it disappears, collapse it ourselves.
Me.ToolTip1.Hide(Me.MaskedTextBox1)
End Sub
あなたは、あなたがいることを押したときにはい、それはあなたの関数を入力し、追加する場合Backspace'は、 '再び、キーを検出しようと-''使う意味あなたの関数内にあります – Prisoner
これは便利でしょう:http://www.vbforums.com/showthread.php?626118-License-Key-Serial-Code-TextBox&highlight= – jmcilhinney
あなたのキーが 'Backspace'キーを押して、その条件で関数を実行します。 – jAC