Silverlight OpenFileDialog第二次打开
问题描述:
我在后端使用sliverlight 2.0中的openFileDialog和vb.net。我把它连接起来,它的工作原理是假设点击事件似乎是两次触发。它首次启动,我选择文件并单击确定。它处理。但只要我点击确定,点击事件第二次触发,对话框再次出现。这不是我想要的,我不确定我做错了什么,它第二次出现。这是代码..希望有人看到我做错了什么。Silverlight OpenFileDialog第二次打开
<Button x:Name="bOpenFileDialog" Content="2. Import CSV"
Height="30" Width="200" Margin="0,96,0,0"
HorizontalAlignment="Left" VerticalAlignment="Top"
Click="bOpenFileDialog_Click" />
<TextBlock Height="19" Margin="246,26,261,0" VerticalAlignment="Top" Text="TextBlock" TextWrapping="Wrap" x:Name="lblMsg"/>
Private Sub bOpenFileDialog_Click(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles bOpenFileDialog.Click
Me.bOpenFileDialog.IsEnabled = False
' Create an instance of the open file dialog box.
Dim openFileDialog1 As OpenFileDialog = New OpenFileDialog
' Set filter options and filter index.
openFileDialog1.Filter = "LOG Files (*.log)|*.log|All Files (*.*)|*.*"
openFileDialog1.FilterIndex = 1
openFileDialog1.Multiselect = True
' Call the ShowDialog method to show the dialogbox.
Dim UserClickedOK As Boolean = CBool(openFileDialog1.ShowDialog)
' Process input if the user clicked OK.
If (UserClickedOK = True) Then
Dim rows As Integer = openFileDialog1.Files.Count - 1
ReDim aryIISLogs(rows)
For i As Integer = 0 To openFileDialog1.Files.Count - 1
aryIISLogs(i) = openFileDialog1.Files(i).Name
Next
Process1File()
End If
End Sub
感谢 香
答
我想这是因为你注册的事件两次:你有它的按键定义:
Click="bOpenFileDialog_Click"
,并在方法定义:
Private Sub bOpenFileDialog_Click(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles bOpenFileDialog.Click
这些都触发事件,所以你有两个弹出窗口。如果您删除“点击=”或“手柄”,则只会触发一次事件。