Way To Thread A Windows AD Dump To Sql Db?
Nov 8, 2010
This current project involves dumping parts of WinAD objects into a db to search from.I am trying to make this go a bit faster. there could be 10s of thousands of records to create.So i figured threads would do the job.I have tried straight of creating new threads for each db insert. that does not work for long, after 1700 threads it crashes.
t = New Thread(DirectCast(Sub() MySQLLib.group(dmn1, grpn1, grpd1), ThreadStart))
t.Start()
[code].....
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Feb 1, 2011
Is there a way in .NET (VB.NET or C#), when an exception happens, to dump the stacktrace of each thread? Basically I would like to reproduce what happens in Visual Studio's Debug->Threads window to see what each thread was doing when the exception happened
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Aug 13, 2010
In one application, I need use 4 simultaneous threads.When the threads finished, I need to update the text of a TextBox.So, I create 4 Textbox, and I wanna the threads change the text to FINISHED.Each thread change one distinct TB.I use this "example"
Dim Terminados As Integer = 0
Private Sub frmEnviarMensagem_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Timer1.Enabled = True
Timer1.Start()
[code]....
The problem is, I have an error in the red lines.The error is: INVALIDOPERATIONEXCEPTION "Cross-Thread operation not valid: Control tbPlaca1 Accessed from a thread other than the thread it was created on."I don't use cross threading. Each TB only was accessed for the correspondent thread, and for the "main program".
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Nov 3, 2011
This is the error message I am getting:
"Cross-thread operation not valid: Control 'Panel1' accessed from a thread other than the thread it was created on." The reason I am getting this error is because I am opening up a new form and then calling these three things:
Panel1.Show()
Label1.Show()
Label2.Show()
why I get this error message because it doesn't occur normally if I open Form2 after closing Form1, it only occurs when I open Form2 after closing Form4.
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Jul 21, 2009
I have done a program using vb2005 to display reading from my microcontroller bs2 board but have encountered some problems. My code are as follows.
Dim Stop_Rx As Boolean
Private Sub btnRead_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRead.Click
SerialPort1.Open()
[code]....
I've encounter an error which is, (Cross-thread operation not valid: Control 'txt1' accessed from a thread other than the thread it was created on.)
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Jun 21, 2012
When my client try to connect to server I'm getting this error : Cross-thread operation not valid: Control 'l_users' accessed from a thread other than the thread it was created on.
Private Sub _socketManager_onConnectionAccept(ByVal SocketID As String) Handles _socketManager.onConnectionAccept
l_Users.Items.Add(SocketID)
End Sub
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Feb 17, 2012
Would anyone be able to help me here please. I'm fairly new to VB.net and threading so im just trying to figure out what is happening.When I debug this I am getting the error thread operation not valid: Control 'ProgressBar1' accessed from a thread other than the thread it was created on.
I'm a little lost as to why the error is occuring or how to fix it. I've had to put the progress bar in a separate thread otherwise the GUI crashes
[Code]...
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Sep 2, 2010
My understanding is that thread.join will suspend the execution of code on the calling thread until the spawned thread finishes or is aborted...
With that in mind, I tried this:
For i = 1 to 50
threads = New Thread(AddressOf test)
threads.IsBackground = True
threads.SetApartmentState(ApartmentState.STA)
[CODE]...
However, the rest of the code runs when the loop finishes, not waiting for all the spawned threads to finish. Since the rest of the code needs the threads to finish (otherwise the rest will error).
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Jun 6, 2010
I have written an application that loads a form - frmCad as well as AutoCad. It does this via a class which detects when AutoCad quits.
Friend Class CadApp Private WithEvents AppObject As AcadApplication... Private Sub AppObject_BeginQuit(ByRef Cancel As Boolean) Handles AppObject.BeginQuit RaiseEvent Quit() End SubEnd Class
My main class loads frmCad as well as CadApp.
Public Class Cad Private WithEvents frmCad As CadForm Private WithEvents app As CadApp... Public Sub ShowForm() If frmCad Is Nothing Then frmCad = New CadForm frmCad.Visible = True End Sub... Private Sub app_Quit() Handles app.Quit frmCad.Dispose() frmCad = Nothing .... End Sub
When I debug the program, it stops at frmCad.Dispose()The program continues to execute, but all the code after it fails to work.Looking more carefully I get an error message which contains:-Cross-thread operation not valid: Control 'Autocad' accessed from a thread other than the thread it was created on.
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Feb 9, 2011
My error:Cross-thread operation not valid: Control 'label2' accessed from a thread other than the thread it was created on. I want to be able to give my Public RunBot() sub access to edit Labels, buttons, etc without an error.
[Code]...
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Apr 1, 2010
I'm getting the 'System.InvalidOperationException' error on acccessing a thread from other than where it was created. My code is:
'Required by the Windows Form Designer
Public components As System.ComponentModel.IContainer ' changed from private
[code]....
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Jun 6, 2009
My problem is Cross-thread operation not valid: Control 'statusHO' accessed from a thread other than the thread it was created on.
System.InvalidOperationException was unhandled
Message="Cross-thread operation not valid: Control 'statusHO' accessed from a thread other than the thread it was created on."
Source="System.Windows.Forms"
StackTrace:
[Code]...
i used it and it works fine then. but as it is mentioned its not a good practice to use it. So what should i do? is it ok if i use this as i am not able to use correct practice. Mine application is not for enterprise purpose. its just my class project, and it works fine even if i put application working in background. System works ok. I dont know how to correct this error.As i dont have that much knowlege of threads.
So please guide me how to fix this in correct way otherwise i am force to go for bad programming practice
Please refer to Windows Mobile Developer Center > Smart Device Development Forums > Windows Mobile Development > Appendtext not working for all my code details
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Aug 4, 2009
Cross-thread operation not valid: Control 'lv1' accessed from a thread other than the thread it was created on.
Dim lvi As ListViewItem
For Each lvi In lv1.Items
[code]....
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Sep 17, 2009
I've been using some memory profilers to try and track down a memory leak - but am swamped with posibilities.
Am wondering if anyone has a function to dump all memory allocations that are present as a form closes/disposes.
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Jan 12, 2012
I am trying to view all the properties of this:
Dim IISOBJ = GetObject("IIS://LocalHost/W3SVC/1")
For the life of me I can't figure out how to display all the property names of this object.
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Jan 20, 2012
I use this code to create dump files of my database.Now what I want, if possible, is to encrypt it so that when it is viewed in notepad or anything similar, average users cannot read it.
Code
Call isDirectoryExist()
Call createDbBackupName()
Dim myProcess As Process = New Process
Dim strUser As String = "superadmin"
[Code]...
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Jul 16, 2009
I know it sounds an odd request, but in order for others to gain access to an executable's VB.Net source code long after I have left the project I wanted to add something that could output the source code to notepad. This would be triggered by calling the exe with a numbner of parameters passed, like a pass phrase.I know how to pass the parameters and can call a proc based on what is passed, but I don't know if it's possible within that proc to dump the entire program's source code to notepad.
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Jun 1, 2011
How to search a dump.bin for a pattern then take the point it is at, i.e. 8DB358 and search that string? urls...
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Feb 4, 2009
I have a third party GIS tool that I'm using to view maps with. Occasionally we have to take a snapshot of a portion of the map and dump it to a bitmap. The third party tool has a function that will give me the upper left and lower right coordinates of the area selected on the map. These coordinates come out as system.drawing.point objects.
The two point objects are then used to generate a new system.drawing.size object that will give the height and width of the area selected. The height and width values are passed to the constructor for the system.drawing.bitmap.All this works fine most of the time. Sometimes, however, when the user selects a particularly large area, the bitmap constructor bombs with a 'parameter is not valid' error. There isn't any documentation on this error, but I'm assuming it means the height and width are too big.
So what I'm wondering is... is there some way to check my height and width values prior to creating the bitmap and make sure they are in acceptable bounds?
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Dec 6, 2011
Right now I have a windows service which only task is to gather data from a database with a specific DSN and then send out an email if the data is valid. The service contains a timer which ticks every 5 minuts and performs the tasks above.Now I need to re-write the windows service to be able to run on more than 1 DSN.I was thinking of making several threads inside the windows service and then again have a seperat timer inside each thread.Is this a good idea and how can this be done? I want to avoid having a windows service for each DSN.[code]
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Jul 28, 2011
I am getting data from my database and I want to have that data as a table in excel file.
So, I have written the following :
[Code]...
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Feb 15, 2012
I have this code which saves the dump file in a static path or destination Process.Start("C:xamppmysql inmysqldump.exe", "-u root ipoint -r C:Backupipoint.sql") MsgBox("Backup Database Created")
I want to choose the path by using the folder browser dialog which will put the path on a textbox but this code below doesn't work Dim path2 As String = tb_path.Text Process.Start("C:xamppmysqlinmysqldump.exe", "-u root ipoint -r '" & path2 & "'ipoint.sql") MsgBox("Backup Database Created")
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Jul 5, 2010
In Windows 7 if I launch Task Manager and select a process (eg:Notepad.exe) I can right click on this and select "Create Dump File".
This creates a dump of the file to my hard drive.I would like to do this programmatically.
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Jan 23, 2012
I use this code to create dump files of my database. Now what I want, if possible, is to encrypt it so that when it is viewed in notepad or anything similar, average users cannot read it.
Call isDirectoryExist()
Call createDbBackupName()
Dim myProcess As Process = New Process
Dim strUser As String = "superadmin"
[Code] .....
Of course, if it encrypted, it has to be decrypted before querying the dump file. I have no idea what encryption I can do in vb.net and mysql
I modified my first code
Process.Start("C:/MySQL/bin/mysqldump.exe", " --host=localhost --user='" & strUser & "' --password=1234 """ & strDbName & """ -r """ & strPath & newDBName & """, --cipher /e /a '" & newDBName & "' ")
But the output file contains nothing whatsoever.
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May 13, 2010
I am currently creating an application which monitors any errors that occur in the other applications I have developed.
One thing that I want to try and do is add a sort of discussion thread into the form, so this allows for each member of IT to add comments/notes about the error that occurred.
Normally I would just use a DataGridView or a ListView, but I would like to have the capability for the comments/notes to be multi-lined so that the user can see what has been written without having to scroll sideways.
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May 31, 2012
I am developing windows based video application, in my application I have to make multiple video files with different duration from a single video file. To achieve this I am using thread.join method(), when I run my application it works fine but sometimes it hangs and I have got to close my application using Task manager, I can't understand why my application behave like this?.
This generally happens when number of output files are more than 40. Is there any problem with thread.join() function, when number of threads are increased. I am generating a new thread for each output file because this is the limitation of the third party dll which I am using.
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Jul 12, 2010
how can i dump a small html code in a variable? do i need to take array ?i need to write below line to a file "as is"
$a = "<style>"
$a = $a + "BODY{background-color:skyblue;}"
$a = $a + "TABLE{border-width: 1px;border-style: solid;border-color: black;border-collapse: collapse;}"
$a = $a + "TH{border-width: 1px;padding: 0px;border-style: solid;border-color: black;background-color:thistle}"
[code]....
how can i make VB turn off recognition of it's operative characters like $,<,>,= etc. which appears on above code but i need to dump it "as it is" in a file during runtime.
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Jun 1, 2011
I have a VB.NET 2008 program that crashes about once a month at a customer location. My log file does not include any clues of the crash, the program just dies with the infamous SEND / DONT SEND window.So I need to setup my customers so that in the event of a program crash, a DUMP file is created automatically, without any user intervention. Everything I read on internet indicates that the drwtsn32.exe program does that.
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Feb 7, 2011
Ok i have a Form with the following
Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
txtNotepad.Text = LoadFile("notes.txt")
[code].....
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Mar 25, 2012
''//begin cross threaded component
Private Sub dBgRIDvIEWNotInvokeRequired(ByVal dBGridViewcomponentname As DataGridView, ByVal dvalue As String)
dBGridViewcomponentname.Text = dvalue
dBGridViewcomponentname.Update()
[code]....
when used is like this CrossThreadedDbGridView(DataGridView1, "TheText") But what if I have lots of member or property to used like this code:
DbGridPapers.ColumnCount = 5
DbGridPapers.RowCount = rc
DbGridPapers.Update()
[code]....
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