本文整理匯總了VB.NET中System.Windows.Forms.ListView.AfterLabelEdit事件的典型用法代碼示例。如果您正苦於以下問題：VB.NET ListView.AfterLabelEdit事件的具體用法？VB.NET ListView.AfterLabelEdit怎麽用？VB.NET ListView.AfterLabelEdit使用的例子？那麽, 這裏精選的事件代碼示例或許可以為您提供幫助。您也可以進一步了解該事件所在類System.Windows.Forms.ListView的用法示例。
在下文中一共展示了ListView.AfterLabelEdit事件的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: ASCIIEncoding
Private Sub MyListView_AfterLabelEdit(ByVal sender As Object, ByVal e As System.Windows.Forms.LabelEditEventArgs) Handles listView1.AfterLabelEdit
' Determine if label is changed by checking to see if it is equal to Nothing.
If e.Label Is Nothing Then
Return
End If
' ASCIIEncoding is used to determine if a number character has been entered.
Dim AE As New ASCIIEncoding()
' Convert the new label to a character array.
Dim temp As Char() = e.Label.ToCharArray()
' Check each character in the new label to determine if it is a number.
Dim x As Integer
For x = 0 To temp.Length - 1
' Encode the character from the character array to its ASCII code.
Dim bc As Byte() = AE.GetBytes(temp(x).ToString())
' Determine if the ASCII code is within the valid range of numerical values.
If bc(0) > 47 And bc(0) < 58 Then
' Cancel the event and return the lable to its original state.
e.CancelEdit = True
' Display a MessageBox alerting the user that numbers are not allowed.
MessageBox.Show("The text for the item cannot contain numerical values.")
' Break out of the loop and exit.
Return
End If
Next x
End Sub