本文整理匯總了VB.NET中System.Windows.Window.Closing事件的典型用法代碼示例。如果您正苦於以下問題:VB.NET Window.Closing事件的具體用法?VB.NET Window.Closing怎麽用?VB.NET Window.Closing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.Window
的用法示例。
在下文中一共展示了Window.Closing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: New
' 導入命名空間
Imports System ' EventArgs
Imports System.ComponentModel ' CancelEventArgs
Imports System.Windows ' window
Namespace VisualBasic
Partial Public Class DataWindow
Inherits Window
' Is data dirty
Private isDataDirty As Boolean = False
Public Sub New()
InitializeComponent()
End Sub
Private Sub documentTextBox_TextChanged(ByVal sender As Object, ByVal e As EventArgs)
Me.isDataDirty = True
End Sub
Private Sub DataWindow_Closing(ByVal sender As Object, ByVal e As CancelEventArgs)
MessageBox.Show("Closing called")
' If data is dirty, notify user and ask for a response
If Me.isDataDirty Then
Dim msg As String = "Data is dirty. Close without saving?"
Dim result As MessageBoxResult = MessageBox.Show(msg, "Data App", MessageBoxButton.YesNo, MessageBoxImage.Warning)
If result = MessageBoxResult.No Then
' If user doesn't want to close, cancel closure
e.Cancel = True
End If
End If
End Sub
End Class
End Namespace