There are some errors ExamplesWPFFileTransfer demo

[Anonymous]

Hello
when I run the ExampelsWPFFileTransfer Demo, Encounter some errors when I transfer files。Specifically When the file is very small, such as 1k,2k. Can you give me some help ， Thanks

Regards,
msdc123

[Anonymous]

1. Is the error 100% reproducible?
2. What is the exact size of the file you are using to create the problem?
3. Can you provide any more information regarding the error?

Regards,
Marc

[Anonymous]

Hello
Thanks.
1. not 100%. but when the file is 1k,almost 30%.
2. I tested several times。 I meet the condition when the file size is 1K,20K
3. such as the file size is 35112 . the received file size is 35000.

4、in MainWindow.xaml，If i set sendChunkSizeBytes = 500000000 ;
It almost ok.

5、 I guess when i send data use
connection.SendObject(“PartialFileData”, streamWrapper, customOptions, out packetSequenceNumber);

if the streamwrapper’s data too small,will lead some mistake.

6、in log file ,I didn’t find any related message.

best regards

[Anonymous]

Hello

I think I have solved the problem.

I change the code in MainWindow.xaml.cs

public void AddData(long dataStart, int bufferStart, int bufferLength, byte[] buffer)
{
lock (SyncRoot)
{
data.Seek(dataStart, SeekOrigin.Begin);
data.Write(buffer, (int)bufferStart, (int)bufferLength);

ReceivedBytes += (int)(bufferLength – bufferStart);
//add
if (ReceivedBytes == SizeBytes)
{
data.Flush();
}
}

NotifyPropertyChanged(“CompletedPercent”);
NotifyPropertyChanged(“IsCompleted”);
}

Now It’s OK

Best regards

• This reply was modified 9 years, 11 months ago by .
• This reply was modified 9 years, 11 months ago by .

[Anonymous]

Yea, that seems like the sort of thing it might be. Many kind thanks for the fix. I have updated the repository and online example.

Regards,
Marc

[Author]

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