本文整理汇总了VB.NET中System.Windows.Forms.ListView.OnAfterLabelEdit方法的典型用法代码示例。如果您正苦于以下问题：VB.NET ListView.OnAfterLabelEdit方法的具体用法？VB.NET ListView.OnAfterLabelEdit怎么用？VB.NET ListView.OnAfterLabelEdit使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Windows.Forms.ListView的用法示例。
在下文中一共展示了ListView.OnAfterLabelEdit方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
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