bug: increasing ADO.NET 2.0 timeouts ?

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  • Start date Start date
G

Guest

Reading the MP3 header of hundreds of MP3 files in many subdirectories
results in an exception (Vs.2005, VB.NET):

"The CLR has been unable to transition from COM context 0x1a1c68 to COM
context 0x1a1dd8 for 60 seconds. The thread that owns the destination
context/apartment is most likely either doing a non pumping wait or
processing a very long running operation without pumping Windows messages.
This situation generally has a negative performance impact and may even lead
to the application becoming non responsive or memory usage accumulating
continually over time. To avoid this problem, all single threaded apartment
(STA) threads should use pumping wait primitives (such as
CoWaitForMultipleHandles) and routinely pump messages during long running
operations."

Have no idea how "pumping wait primitives" can be set in VB.NET.
what about you?
btw: at least my girl friend was impressed by what kind of coding I do ;-)

thanks herbert
 
Miha,
this is the VB.NET Code:

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Button2.Click
Dim path As String
Me.FolderBrowserDialog1.Description = "Select the directory that you
want to use As the default."
Me.FolderBrowserDialog1.ShowNewFolderButton = False
OpenFileDialog1.InitialDirectory = FolderBrowserDialog1.SelectedPath
Dim result As DialogResult = FolderBrowserDialog1.ShowDialog()

Me.FolderBrowserDialog1.RootFolder =
Environment.SpecialFolder.MyComputer

If (result = Windows.Forms.DialogResult.OK) Then
path = FolderBrowserDialog1.SelectedPath
MsgBox(path)
'Look for MP3 Files in all Subdirectories
'path = selected path from the user (with the FloderBrowserDialog
'value = listing of the found files (Wrapper)
Dim value As
System.Collections.ObjectModel.ReadOnlyCollection(Of String) =
My.Computer.FileSystem.GetFiles(path,
FileIO.SearchOption.SearchAllSubDirectories, "*.mp3")

Test_dbDataSet.info.BeginLoadData()
'Load the information in the DataSet

For Each myfile As String In value
'Read the Tag from the Mp3 file
Dim ID3Tag As New ID3TagV2
If GetID3TagV2(myfile, ID3Tag) = True Then
'write a new row into the Dataset
'function "aeiou": function to overwrite specific signs
("Ä, Ö,...)
Test_dbDataSet.info.AddinfoRow(aeiou(path),
ID3Tag.Title, ID3Tag.Artist, ID3Tag.Album, ID3Tag.Year_Renamed, ID3Tag.Genre,
ID3Tag.Comment, ID3Tag.Composer, ID3Tag.OriginalArtist, ID3Tag.Copyreght,
ID3Tag.Link, ID3Tag.ExtendedHeader, ID3Tag.PlayCounter, ID3Tag.Track,
ID3Tag.Encoder, ID3Tag.Language, ID3Tag.Length, ID3Tag.MediaType,
ID3Tag.Publisher, ID3Tag.DecodingSoftware)
End If
Next
Test_dbDataSet.info.EndLoadData()

logfile("Nach Verzeichnis gesucht")
logfile(path)
End If
End Sub

thanks Herbert

Miha Markic said:
How exactly do you read those headers?

--
Miha Markic [MVP C#]
RightHand .NET consulting & development www.rthand.com
Blog: http://cs.rthand.com/blogs/blog_with_righthand/

herbert said:
Reading the MP3 header of hundreds of MP3 files in many subdirectories
results in an exception (Vs.2005, VB.NET):

"The CLR has been unable to transition from COM context 0x1a1c68 to COM
context 0x1a1dd8 for 60 seconds. The thread that owns the destination
context/apartment is most likely either doing a non pumping wait or
processing a very long running operation without pumping Windows messages.
This situation generally has a negative performance impact and may even
lead
to the application becoming non responsive or memory usage accumulating
continually over time. To avoid this problem, all single threaded
apartment
(STA) threads should use pumping wait primitives (such as
CoWaitForMultipleHandles) and routinely pump messages during long running
operations."

Have no idea how "pumping wait primitives" can be set in VB.NET.
what about you?
btw: at least my girl friend was impressed by what kind of coding I do ;-)

thanks herbert
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