I am using Background Worker control to cancel internal operation.I am populating data in to datagridview and written this entire code in Do_Work event of Background Worker .But when my number of rows are greater thansize of datagridview that time my application is hang.Number of row always greater than 50.
View 1 RepliesMy Visual studio is hanging when I click any component or on toolbox.
View 3 Repliesi have a listview and everytime I load a 10,000 data my listview hang up. Is there any alternative on how to load data to listview that will not hang up.
View 10 RepliesI am made program to get Picture Pixel and check Pixel colors.
between looping my Application Form HANG (STOP) and also how can stop loop between working (on Run time)?
in listbox1 picture List with path
For P = 0 To ListBox1.Items.Count - 1
DisplayPic.Image = System.Drawing.Image.FromFile(ListBox1.Items.Item(P))
Call GetPicPixel()
[Code].....
My application get hang after i download log from hardware unit.Basically hardware protocol is custom design(no modbus).there are huge number of records(minimum 1000) which i have to show in grid at the time of download process takes place i add new rows into grid to show record function works on but after function execution over application gets hang. No process is pending after that function.
Private Sub manikPro_DownloadDataReceive(ByVal packet As String) Handles manikPro.DownloadDataReceive
Dim str As String = ""
[code].....
I have some coding which basically edits my text file and removes the duplicates. For some reason when I run it, it hangs my application for like 10 seconds - the coding does work just hangs my application..[code]
View 8 RepliesI need to write a monitoring/watchdog program to check a series of application..The monitoring program should be able to Determine whether the applications it is monitoring has hang or no response If it hangs, restart the specific application.What sort of API in VB.NET can help me achieve this?
View 2 RepliesI have a client who is causing my software application to "hang" whenever he plugs in a thumb-drive and copies files. My software is using none of these files... can anyone hazard a guess at what's going on?
View 14 Repliesi have develop an application which write to comport. what i am exp is application hang while writing to port i cant minimize nor move the exe. the better part is it does task successfully for what it is made for.
View 9 RepliesI have a VB.NET GUI (VS2005) that calls into a VB6 DLL to query MSAccess 2003 databases using DAO 3.6. Yes, I know this is not an ideal scenario, but that's the way the current application is set up. Component Checker shows MDAC 2.8 SP1 is installed. This application usually runs for a long time on our customer's Windows XP SP3 system with no issues. Occasionally (read: after 11 minutes or 11 hours or days), we experience a hang in the application, such that it needs to be ended with task manager and restarted. According to crash dumps and one lucky capture within the debugger, all threads are waiting on objects/critical sections within ntdll.dll. My specific thread gets stuck there and comes from MSJet40.dll. In the crash dumps, most threads are stuck in NTWaitForSingleObject, RtlEnterCriticalSection, etc.
I've been troubleshooting this intermittent issue for months and am convinced this is a bug in MSJet40.dll. The version of the DLL is 4.0.9511 and I see there is a hotfix for 4.0.9514 on XP SP3 outlined in: =[URL] I would like to get this hotfix to see if it fixes the issue and speak with MS if it doesn't. I have crash dumps and procmon traces of these events. This sounds very similar to the dreaded "Jet Bug" that shows up on a Google, supposedly fixed for Windows 2003 Server SP1, but I see no mention of it on Windows XP SP3.
I am trying to send and receive data using the SerialPort component. I am sending data to an Texas Instruments MSP430 which simply echos the sent character. I wanted my VB solution to read characters from a file, send a single character, and wait until the echoed character is received before sending another.
I have been fairly successful thus far but I have run into a little catch. When I attempt to send large files (323505+ characters) my MSP430 just hangs there and will not receive any more characters. My VB app return to VS '08 with timeout errors (timeout set to 1 minute).
I wanted to post my VB code here to see if the problem is from my VB app. I will be posting this problem on the IT usergroup to sort out anything on the MCU end. Here is the pastbin of the data write and the data receive subs:[URl]..
I have a background worker that's checking the status of four services on a remote server.This is setup on a timer (5 Seconds) as below. For some reason it's hanging the UI thread causing the application to 'lock' for a second each tick, I cannot work out why?!
Private Sub ServiceTimer_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ServiceTimer.Tick
_ServiceBGWorker = New System.ComponentModel.BackgroundWorker()
[code]......
I m make search file project. In This Project I Search All File From Drive. ( *.* )When i Press Button For Search, Its Still Hand For Few Seconds Or Minutes When Search Completed its Normal. 1. How to Resolve its Hanging. 2. Can I Add Progress-bar For This Action. [Code]
View 15 RepliesI have wrote a web service, in a nutshell it uses openpop to get email messages does stuff with the content to insert into databases and saves attachments which are images. That works fine when i save images locally, it does exactley what it is suppose to. Now an added requirment was to save images to an FTP directory, so i can create my folders dynamically (they are created based upon timestamp) and that works well. My problem comes from when i try to save them to the ftp. Yes my user name and password are correct,otherwise i wouldn't be creating the directory.
Private Sub UploadFile(ByVal fileToSave As FileInfo, ByVal path As String)
Dim UploadRequest As FtpWebRequest = DirectCast(WebRequest.Create("ftp://UserName:Passowrd@999.99.999.9" & path),
[code].....
Try
OleDbConn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\list.mdb")
OleDbConn.Open()
[code]......
I have a vb.net project which sometimes, when running in the IDE, suddenly hangs. Normally this wouldn't be a problem. Just hit 'pause', look at the currently running threads, and find the deadlock (or whatever else). But now I'm running into a situation where not only does the program hang, but trying to pause it causes visual studio itself to hang. In order to get control back, I have to kill the program-being-debugged's process, at which point visual studio comes back to life and says it was unable to pause execution. This is frustrating, because killing the process means the program state is lost (of course), so I don't know where the hang is.
View 4 RepliesHow come my datareader looping at the while loop line it become totally no response and without error eventhough I got use the try catch error catching... it only will hang on after few minute... after few loop. Is it the data reader got time out limit?? If exceed the limit it will no response..? Inside my while loop it do a lot of transaction and each transaction also take quite long time... it will affect?
myCommand = New MySqlCommand("SELECT * FROM stk_cus_inv_hd WHERE DocType=?DocType;", conn1)
myCommand.Parameters.AddWithValue("?DocType", "CS")
myCommand.CommandTimeout = 99999
myReader = myCommand.ExecuteReader
While myreader.read <<---- it jam at here and totally no response my coding... but my interface is clickable...
my lot of work here...
End While
I am using the System.Net.Mail namespace to create and send email messages. Everything was working fine until a couple of QC members of our team noticed something strange.
If they send emails from within my application and then leave the application open for a while (perhaps working on other tasks on the PC), when they try and activate my application again, it appears to be hung. The CPU is not pegged and everything appears to be normal in the task manager. We narrowed it down and it appears that this issue only manifests itself when MS Outlook is also opened and connected to a server.
I was playing around with process monitor, but nothing I saw was really glaring. I actually started deleting some threads on the PC and eventually my application became usable again.
I am using an external DLL (pdfsharp) to open (then manipulate) lots of PDF files. I use: Dim inputDocument = Pdf.IO.PdfReader.Open(PDFPath, IO.PdfDocumentOpenMode.ReadOnly) Problem is - it seems to hang on certain, rare files. I don't seem to get any timeout - it just hangs for hours on this line. We read thousands of files with this code, always on tiny files, so I was thinking that a quick workaround might be to somehow timeout if the this method takes more than a second or two. But I don't see a simple way to do this. I am hoping to avoid spinning up a worker thread.
View 2 RepliesI'm trying to upload a large file (over 50Mb) to my webserver but my app hangs when trying to close the stream. If the file uploaded is larger than 50Mb then the .Close() causes it to hang - no error message at all - however a file less than 50Mb succeeds.
What do you suggest to get around the fstream.Close() hanging my app?
Dim target As New Uri(uploadedFilePath)
Dim fRequest As System.Net.FtpWebRequest = System.Net.WebRequest.Create(target)
[code].....
for example:
dim a as long
for i as integer = 1 to 10000000
[CODE]..........
It will hang when it run til half way.
I'm having an issue with a program. It seems to run (continuously) any amount of time from a few days to about a week.Eventually, and seemingly randomly I get the following Errror. None of the users see a consistent item that is causing the hang, and sometimes it's even just running with no interaction with the user.I just get long signature alpha numerics as a debugging tool.Is there any way to
a) force my program to kick out of the hang if it detects one, (and I guess, how could I write a separate thread to detect a hang?)
b) find out where my program is hanging?
c) if none of these options are viable, some coding practices I might be doing wrong that I could change to help avoid this?
how to make a multi language desktop application in vb.net 2005. only a small desktop application in which i can change language according to countries.
View 1 RepliesI am in process to develop an application for Windows Mobile 6.5 using Visual Basic 2005 and .NET Compact Framework. My problem is that I want to know if an instance of my application is already running and, in that case, I want to jump directly to that instance, without starting another one. I tried several solutions found on the internet but I think there are solution for desktop applications not for mobile applications because I have a lot of errors.
View 1 Repliesi wrote a program to read a 100mb size text file and loop through it to look for some kind of information I need. Before even i start looping through it, my program hang when i start to read the whole text file using the ReadAll method of the TextStream object. Is there any way that I can read through the whole text file more efficiently?
View 7 RepliesI currently have a simple crystal reports application which generates a crystal report and in the built in viewer provided by VS2005. There is a drop down where you can select options to change the criteria of the report. I wish to convert this app to a windows executable which will take all those select options and generates pdfs based on the crystal report. the executable will be triggered by windows task scheduler...or maybe command line app?
Obviously this will be somewhat of a re-write. What would be the best way to start this as? a crystal report application or a windows application.
what is the different writing code application vbnet 2005 application for single user and multiuser?
View 3 RepliesI am writing an application that puts a computer in hibernation mode (Application.SetSuspendState). I have noticed that there exists a specific option that needs to be enabled for the machine to hibernate correctly and that is found in Control Panel--> Power Options --> Hibernate Tab (if this option is not checked then the machine goes into stand by mode rather than hibernate) Is there a way to programmatically check the status of the "Enable Hibernation" check box and check/uncheck it?
View 2 RepliesI use the 'Process' object to run EXE from my application. It works fine when it run on Windows XP and 2003. When it run on Windows server 2008, it hangs up: the process is stayed in background but never returns. It never goes ahead for the next commands. What could be the reason? [Code]
View 6 RepliesI use the 'Process' object to run EXE from my application. It works fine when it run on Windows XP and 2003. When it run on Windows server 2008, it hangs up: the process is stayed in background but never returns. It never goes ahead for the next commands
View 2 Replies