首页 \ 问答 \ WPF媒体元素视频源(WPF Media Element Video Source)

WPF媒体元素视频源(WPF Media Element Video Source)

我尝试在XAML代码中设置视频源,视频无法播放:

<MediaElement x:Name="bgvideo" Width="800" Height="600"Source="/Videos/BG_LOOP_BIG.wmv" />

所以我尝试在代码隐藏中设置视频源,这也不会发挥作用。 :

bgvideo.Source = new Uri(@"pack://application:,,,/Videos/BG_LOOP_BIG.wmv", UriKind.Absolute);

要么

bgvideo.Source = new Uri(@"/Videos/BG_LOOP_BIG.wmv");

它只是在视频源为absoulte时播放:

bgvideo.Source = new Uri(@"C:\SomeFolder\Videos\BG_LOOP_BIG.wmv");

如何设置具有相对来源的视频源?


I try to set video source in XAML code, video doesn't play:

<MediaElement x:Name="bgvideo" Width="800" Height="600"Source="/Videos/BG_LOOP_BIG.wmv" />

So I try to set video source in codebehind, that doesn't play too. :

bgvideo.Source = new Uri(@"pack://application:,,,/Videos/BG_LOOP_BIG.wmv", UriKind.Absolute);

or

bgvideo.Source = new Uri(@"/Videos/BG_LOOP_BIG.wmv");

It just play when video source is absoulte:

bgvideo.Source = new Uri(@"C:\SomeFolder\Videos\BG_LOOP_BIG.wmv");

How can I set video source with relative source?


原文:https://stackoverflow.com/questions/676497
更新时间:2022-09-29 08:09

最满意答案

您可以简单地将范围分配给变量,这将创建一个数组 - 它看起来像下面的代码 - 您应该添加适当的错误处理:

Public Sub FixDates(theRange as Range)

    Dim data as Variant
    Dim i as Long
    Dim j as Long
    Dim lngDate as Long

    data = theRange

    For i = LBound(data, 1) to UBound(data, 1)
        For j = LBound(data, 2) to UBound(data, 2)
            If IsNumeric(data(i, j)) Then
                If data(i, j) > 0 Then
                    lngDate = CLng(data(i, j))
                    data(i, j) = DateAdd("d", lngDate - 1, "1/1/1968")
                End If
            End If
        Next j
    Next i

    theRange = data

End Sub

You can simply assign the range to a variant, which will create an array - it would look like the code below - you should add appropriate error handling:

Public Sub FixDates(theRange as Range)

    Dim data as Variant
    Dim i as Long
    Dim j as Long
    Dim lngDate as Long

    data = theRange

    For i = LBound(data, 1) to UBound(data, 1)
        For j = LBound(data, 2) to UBound(data, 2)
            If IsNumeric(data(i, j)) Then
                If data(i, j) > 0 Then
                    lngDate = CLng(data(i, j))
                    data(i, j) = DateAdd("d", lngDate - 1, "1/1/1968")
                End If
            End If
        Next j
    Next i

    theRange = data

End Sub

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