Check if Class/Object needs new instance or if its disposed

        '
        'Check before getting the 'Object reference not set to an instance of an object' error 
        'message is going to been thrown! The code below will check if the variable to the 
        'Class/Object has been set to a instance of the object, disposed, ect.. - WITHOUT getting a 
        'error in your apps.
        '
        Dim audioObject As Microsoft.DirectX.AudioVideoPlayback.Audio
 
        If audioObject Is Nothing Then
 
            MessageBox.Show("This object is not usable yet! You need to set a new instance of the object!", _
                " Not usable!", MessageBoxButtons.OK, MessageBoxIcon.Error)
 
            'Now set a new instance of the object since you found out it was set!
            audioObject = New Microsoft.DirectX.AudioVideoPlayback.Audio("c:\windows.wav")
 
        Else
 
            MessageBox.Show("This object is usable!", _
                " It is Usable!", MessageBoxButtons.OK, MessageBoxIcon.Error)
 
        End If

Current Page: : check_if_class_object_needs_new_instance_or_if_its_disposed vb_net : check_if_class_object_needs_new_instance_or_if_its_disposed Author: Jaruzel Modified: 02 July 2007 @ 17:18