Hello, kinda new here. Well, new member but learned a lot from here as a guest. I've been trying to figure this out for a while and finally decided to ask for help. Maybe someone can help me figure this out. I'm teaching my self all this so please excuse any horrible formatting. I'm using Visual Studios 2010 Premium. I'm learning on how to use the backgroundworker, but can't seem to get the info passed from the dowork to ProgressChanged. If I use CheckForIllegalCrossThreadCalls = False, it works fine, but I don't want to use that.
ok, Here is how I start the do_work:
In the doWork, I have the code to get the File names and lastWriteTime of all the files in the directory.
I'd like for the datagridview to load as it gets the file names which I tried like this:
but when I run the application, I get this:
Attachment 95771
What am I missing?
- I have a datagridview with 2 columns added using the designer.
- I have a backgroundworker using the designer
- WorkerReportsProgress is set to True
ok, Here is how I start the do_work:
Code:
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
If Not bgw.IsBusy = True Then
bgw.RunWorkerAsync()
End If
End SubCode:
Private Sub bgw_DoWork(sender As System.Object, e As System.ComponentModel.DoWorkEventArgs) Handles bgw.DoWork
Dim myDir As ReadOnlyCollection(Of String)
myDir = FileIO.FileSystem.GetFiles("C:\myDirPath\Directory", FileIO.SearchOption.SearchTopLevelOnly, "*.log")
For Each myFiles In myDir
Dim files As FileInfo = My.Computer.FileSystem.GetFileInfo(myFile)
Dim dr As New DataGridViewRow
dr.CreateCells(DataGridView1)
dr.Cells(0).Value = files.Name
dr.Cells(1).Value = files.LastWriteTime
'Me.DataGridView1.Rows.Add(dr) <------I only put this here to test using "CheckForIllegalCrossThreadCalls = False" to make sure it does get the file information.
bgw.ReportProgress(10, dr)
Next
End SubCode:
Private Sub bgw_ProgressChanged(sender As System.Object, e As System.ComponentModel.ProgressChangedEventArgs) Handles bgw.ProgressChanged
Me.DataGridView1.Rows.Add(e.userstate)
End SubAttachment 95771
What am I missing?