VLC error Visual Basic.Net ?

Question

1.00/5 (1 vote)

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VS2012

Screenshot Error:

<Img src="http://oi41.tinypic.com/2v94429.jpg" width="700px">

Error:
Object reference not set to an instance of an object.
Error is on the line: AxVLCPlugin21.playlist.items.clear()

When I try to clear the vlc playlist within Visual basic.net I get the above error.

Actual Code:

VB

Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        AxVLCPlugin21.playlist.items.clear()
        AxVLCPlugin21.playlist.add("file:///C:/Users/Andrew/Desktop/MovieTrailer1.avi")
        AxVLCPlugin21.playlist.play()
    End Sub
End Class

How do I fix?

Posted 29-Apr-13 4:21am

BlueVLC

Updated 28-Jun-23 0:58am

v4

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Comments

Sergey Alexandrovich Kryukov 29-Apr-13 10:25am

In what line?
Where is the declaration of AxVLCPlugin21?
—SA

BlueVLC 29-Apr-13 10:29am

Its VB.Net you just drag it from the toolbox onto the form

The error is on the line
AxVLCPlugin21.playlist.items.clear()

4 solutions

Solution 4

Lösung zur Option

Dim zählervideo As Integer = 0

Private Sub Button9_Click(sender As Object, e As EventArgs)
AxVLCPlugin21.playlist.add(New Uri(playerdatei).AbsoluteUri)
AxVLCPlugin21.playlist.playItem(zählervideo)
zählervideo += 1
End Sub

OR

Private Sub Button9_Click(sender As Object, e As EventArgs)
AxVLCPlugin21.playlist.add(New Uri(ListBox1.SelectedItem.ToString).AbsoluteUri)
AxVLCPlugin21.playlist.playItem(zählervideo)
zählervideo += 1
End Sub

so wird immer das Aktuelle Video gestartet

Posted 28-Jun-23 0:58am

Member 11129220

Solution 3

test without item
AxVLCPlugin21.playlist.clear

Posted 19-Feb-21 21:53pm

Member 3498572

Solution 1

There is no VLC plugin in the toolbox, so you're using a 3rd party component.

The error is message makes it pretty obvious.

Either AxVLCPlugin21, AxVLCPlugin21.playlist, or AxVLCPlugin21.playlist.items is returning Nothing, of null is C#. You can't call methods or get/set property values on Nothing.

It's impossible to say which one of those is throwing the exception. You'll have to inspect the variables in the debugger when it stops on the line that threw the exception.

Posted 29-Apr-13 7:27am

Dave Kreskowiak

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TnTinMn · Accepted Answer · 2013-04-29T08:20:00

Solution 2

It may be a problem with the newer VLC 2.x.x plugin versions. I've had nothing but grief with them. The last version that I've had any luck with is:

http://download.videolan.org/pub/videolan/vlc/1.1.9/win32/[^]

Posted 29-Apr-13 8:20am

TnTinMn

Comments

BlueVLC 29-Apr-13 19:04pm

Tried version 2.5 and worked fine :-)
Have a nice night mate