我有一个记录进程的 ListView。发送到 ListView 日志的消息应在添加后显示。在我的情况下,程序停止任何用户交互,如果过程完成,所有项目都是可见的。
但我需要在添加后直接查看该项目,并且在最后添加的列表底部。添加每个项目后是否有可能刷新 ListView?
我的 XAML:
<ListView Name="lvUpgrade">
<ListView.View>
<GridView>
<GridViewColumn Width="20px">
<GridViewColumn.CellTemplate>
<DataTemplate>
<Image Source="{Binding Path=Icon}" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Width="75px" DisplayMemberBinding="{Binding Path=Time, StringFormat={}{0:HH:mm:ss}}" />
<GridViewColumn Width="300px" Header="Nachricht" DisplayMemberBinding="{Binding Path=Message}" />
</GridView>
</ListView.View>
</ListView>
以及背后的代码:
Public Class Upgrade
Public Sub AddMessage(ByVal message As Message)
Me.lvUpgrade.Items.Add(message)
End Sub
Public Class Message
Public Enum MessageType
Normal
Information
Success
Warning
[Error]
End Enum
Public Sub New(ByVal type As MessageType, ByVal message As String)
_Type = type
_Message = message
End Sub
Private _Type As MessageType = MessageType.Normal
Public ReadOnly Property Type As MessageType
Get
Return _Type
End Get
End Property
Private _Message As String = String.Empty
Public ReadOnly Property Message As String
Get
Return _Message
End Get
End Property
Private _Time As DateTime = Now
Public ReadOnly Property Time As DateTime
Get
Return _Time
End Get
End Property
Public ReadOnly Property Icon As BitmapImage
Get
Select Case Me.Type
Case MessageType.Information
Return My.Resources.Information16.ToBitmapImage
Case MessageType.Success
Return My.Resources.OK16.ToBitmapImage
Case MessageType.Warning
Return My.Resources.Alert16.ToBitmapImage
Case MessageType.Error
Return My.Resources.Error16.ToBitmapImage
Case Else
End Select
Return Nothing
End Get
End Property
End Class
End Class
感谢您的任何回复。