Progress Bars / Timers And Background Task To Ping IPs
Jun 27, 2010This is what I want, I have 12 progress bars and I want to run a background task to ping IPs and if it can ping them it starts a timer is this imposable to do?
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Progress Bars To Show Actual Progress?
Jul 22, 2011I came across a problem in my program it takes too long to calculate the values needed (about 10 sec) .But thats not the problem you don't know when the program is working or not, as it just locks up until its finshed and I view that as a problem.
I need to be able to show the progress of this .I looked at using background Workers but I get exception "Object reference not set to an instance" I believe this is because the background worker cannot write values or something ,As it works will a normal handler.
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Reguarding Progress Bars?
Feb 14, 2011how can i implement a progress bar in a program that copies files from one place to another
View 5 RepliesProgress Bar To Show The Progress Of The Current Task?
Jun 11, 2010In the app I'm currently making, I have two progress bars. One for current task being committed and the other is for overall progress.During runtime, I calculate how many tasks are being run and set that as the maximum. As each task completes, the progress bar is incremented by one.
I want the current task progress bar to show the progress of the current task. Some tasks can take a few minutes to complete so that progress bar works great. But, if the task is super quick, like editing registry keys, I see no progress at all.When I edit the registry, it basically goes like this:
'Edit Key
'x
'x
'x
ProgressBar1.PerformStep()[code].....
It completes so quickly that I never see the bar even move.I also have each task report its name into a label and it skips ahead so quickly that I only see the first task name and the last.Is there any way to make this do a better job at reporting the progress?
Creating A Task Loggin System - Removing Scroll Bars
Sep 13, 2011Im in the process of creating a task loggin system for my work, and im in the final stage now of tidying the design etc, and i have a text area where a scroll bar is visible but disabled, is there a way to remove the scroll bars completly and when the user goes passed a certain line make them appear? i no i could say scroll bar = false but i wont it to appear when it hits a certain line.
View 3 RepliesForms - Two Progress Bars Conflicts
Mar 18, 2011Im having some trouble with my progress bars in VB.Net. I am currently making a 2d game for a college assignment. The problem is i have one for health and one for reloading the reload bar works fine but when i try to code the health bar i think it conflicts with the other Progress bar [Code]
View 3 RepliesVS 2008 Set Looping And Progress Bars And Hotkeys?
Sep 12, 2009Ive been trying to work with looping code and get messeges like this.
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But that is not important this moment... How would I set a code too use the progress bar? So As it loops at a certain rate {Lets say 1000 (1 sec)} It would show the progress. Currently using it to 1 - 50. (Note: The rate is not important as I know how to set that) EDITEDITEDIT: Thanks for the info so far, But regarding my other thread about hotkeys that I marked "Resolved"
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Forms :: Progress Bars Exceeding Their Maximum Sizes?
Apr 28, 2011I had some trouble a while back with my progress bars exceeding their maximum sizes. I though I had fixed the problem but obviously I was wrong every time the maximum size is exeeded the application enteres debugging mode .... this is really frustrating as the progress bars are a major factor in the game...
What I have is one progress bar which is linked to a clock the clock which ticks up to 1:30 and the game then ends. I also have another progress bar showing the health of the shooter.
I have a series of collision codes set up which are linked to these progress bars, that add to them and take from them.
'Heath pick up collision code...
If (HPU.Top + HPU.Height >= Shooter.Top) And (HPU.Top <= Shooter.Top + Shooter.Height) And (HPU.Left + HPU.Width >= Shooter.Left) And (HPU.Left <= Shooter.Left + Shooter.Width) And HPU.Visible = True Then
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I have tried re-routing the overload so that if it cannot add no more to the progress bars it adds nothing to them.
Code That Will Make A Progress Bars Value Equal The Battery Level?
Apr 30, 2010I need a code that will make a progress bars value equal the battery level. And have label equal the batterys time left?
View 4 RepliesGet The Progress Bar Show The Progress Of The Batchfile Running In The Background??
Jul 7, 2010get the progress bar show the progress of the batchfile running in the background?
View 10 RepliesShow The User The Current System Time And Date Using Progress Bars In VB 08 Express?
Jan 7, 2011I am trying to write a program that shows the user the current system time and date using progress bars in VB 08 Express but don't know how to start it, I am having trouble with getting the program to refresh the minutes and seconds progress bars
View 4 RepliesProgress Shown In Task Bar?
Dec 7, 2010I'm using Windows 7 Aero DesktopI've seen in many applications like Google Chrome, Microsoft IE that when a download is in progress, the windows taskbar shows the progress of it's download something like in green color.
View 1 RepliesProgress Bar To Show Completion Of Task?
Aug 19, 2010I have developed a task in VB. I want help to develop a progress bar to show a task completion by the user. I know how to make progress bar with time but I am looking for progress bar with respect to task completion. And once task is finished by user, the task will show either task has been done or task should be disappeared just to let user that task has been completed.
View 9 RepliesRun A Periodic Task In The Background In VB?
Mar 11, 2009What's the easiest way to run a periodic task in the background in VB?
For example: Update a label every second with the current time, while still allowing the form to be available.
Get My Program To Run In The Background - Don't Want To Have The Minimized Screen On The Task Bar
Aug 12, 2010I would like to get my program to run in the background. The EXE file I have created, I want it to run in the background and yet do not want to show the user that the program is running. Like I don't want to have the minimized screen on the task bar. Can I do it in my VB.net program.
View 10 RepliesVS 2008 - Slow A Task In The Background Worker Down?
Nov 5, 2010Can i slow a task in the Background Worker down?
View 2 RepliesAndroid - Reeating Task Every Specified Duration With Background Worker In .net?
Sep 14, 2011i have a win form, where i have a block of code which keeps checking for entry in database, every say 2mins, now i want to avoid using timer control, for performance reason, can the same be achieved using background worker.
View 1 RepliesBackgroundworker - Multiple Background Workers - Only Last Task Completes?
Jan 26, 2011I have been pulling my hair out trying to get this to work. If I step through the code in debugger it all works great. My problem is if I just run it, only the last task responds. I'm guessing I am overwriting the background working or something. I am sure I am doing a few things wrong but my code is now messy as I tried many way while searching. I know of the threadpool and .Net 4.0 tasks but having a hard time getting to do what I need.
Basicly I am writing a program (trying more likely) that takes a list of computers and pings then, then checks their uptime and reports back.This works fine in the UI thread (Obviously that locks up my screen). I can have the background worker just do this, but then it does each computer 1 by one, and while the screen is responsive it still takes a long time.
So my answer was to have a for loop for each server launching a new background worker thread. My solution does not work.I have seen other threads that I could do it, but I need to use with events to call code to update to UI when each is done.
What is the most simple way to do this?
Here is my code. Most is just copy paste + modify till I get it working right.
So In the main class I have the testworker.
(I tried using Testworker() but it said I could not do that WithEvents)
When I click the button the list loads.
Private WithEvents TestWorker As System.ComponentModel.BackgroundWorker
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles Button1.Click
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Ping Using Vb.error - Ping An Ip Address And Store The Result In An Access Db
Jul 8, 2009i have tried altering some code i have to ping an ip address and store the result in an access db.i had it working when i had the ip hardcoded in as a string but I am now gettin an error.instead of having the ip address hardcoded in to the code i want it to be read in from the access db but im now getting this error:System.nullreferenceExceptionbject reference not set to an instance of an object at...button1.click event args ei have underlined the piece of code i tried to change
Imports System.Data
Public Class Form1
Dim Ping As Net.NetworkInformation.Ping
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.net - Progress Bar With Background Worker
Jun 7, 2012my backgroundworker as I just cant get it to work. Basically I have a backgroundworker which does a few tasks but I'm trying to implement a progress bar and a label. I'm going to set the maximum value of the progress bar to 10 and then have it updating as I move with each task, also I'm thinking of a label with the progress bar which will display the progress ie
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Add Progress Bar With Background Worker
Oct 7, 2009I'am trying to make app that will show every file in C:[code]Now how can i add progress bar with the background worker.
View 31 RepliesProgress In A Background Worker
Jun 7, 2012I have a backgroundworker which does a few tasks but I'm trying to implement a progress bar and a label. I'm going to set the maximum value of the progress bar to 10 and then have it updating as I move with each task, also I'm thinking of a label with the progress bar which will display the progress ie [code]
View 3 RepliesUsing Progress Bar With Background Worker In VB?
Jun 12, 2011I am developing a VB application along with MS Access... When I initially load my form I need to put my application to sleep for 3 seconds or else data wont load properly. So for this 3 seconds I would like to show a progress bar displaying a message "Please wait" I tried using background worker but did not find any success... I have gone through many tutorials but for some reason could not accomplish the task.
View 4 Replies.net - Progress Bar With Background Worker Part 2?
Oct 6, 2011I just can't see what I am doing wrong here, since I have implemented a progress bar into my background worker it no longer only runs the once (in some cases I have seen the coding within the foor loop run 6 times)
My coding:-
My progress bar max value is set to 10.
BGWorker Do Work Event
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Using A Background Worker To Update A Progress Bar?
May 28, 2012I am using a background worker to update a progress bar while inserting data in a database.
Private Sub InsertintoDB_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles InsertintoDB.Click
BackgroundWorker1.RunWorkerAsync()
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the error i m getting is exception has been thrown by the target of an invocation.
VS 2008 - Background Class With Progress Bar
Nov 4, 2009I have a function that requires 10-15 min to run. Due to sheer amount of time required to run this function, my form freezes and the user is left clue-less about what is happening to the program. I understand that this problem can be overcome using Background class and Progress bar.
View 8 RepliesUse Threading.Tasks.Task To Kick Off A Background Search While User Types, But After They Pause?
Oct 3, 2011I have a lengthy XML file that I want to search based on text that a user types in. Because it's lengthy, I want to wait for the user to stop typing for 250ms or so before I actually start searching in the background. I tried to kick off my Task, having it sleep for 250ms, then check if my CancelTokenSource had canceled because another character was typed. I'm not seeing a cancellation, though, so I end up seeing my results flash several times as the queued up search tasks complete, one after the other, after I finish typing.
View 2 RepliesBackground Worker Create Second Thread For Progress Bar?
Apr 6, 2011I have searched the forum and found several forums related to the backgroundworker thread but have been unsuccessful in finding my answer.My objective is to display an animated gif or progress bar while the program is executing a particular method which can take upwards of several minutes to complete. I cannot get the second thread to run the progress bar while the main progrem is executing the time consuming method. I have created a demo based on another thread and can't seem to get it to create two threads. I was attempting to get the backgroundworker to execute the progress bar while my main code runs on UI thread.
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Copy A File In The Background And Monitor Its Progress?
May 24, 2012i am trying to figure out how to copy a file in the background and monitor its progress.
in VB6 i used the FileCopyEX API
so i wrote a quick application in VB6 that used the API, then opened it in VB2008, so it ran the upgrade wizard
i get one error message after the wizard runs
'UPGRADE_ISSUE: Declaring a parameter 'As Any' is not supported. Click for more: 'ms-help://MS.VSCC.v90/dv_commoner/local/redirect.htm?keyword="FAE78A8D-8978-4FD4-8208-5B7324A8F795"'
Public Declare Function CopyFileEx Lib "kernel32.dll" Alias "CopyFileExA"(ByVal lpExistingFileName As String, ByVal lpNewFileName As String, ByVal lpProgressRoutine As Integer, ByRef lpData As Any, ByRef pbCancel As Integer, ByVal dwCopyFlags As Integer) As Integer
How To Use The Background Workers - While My Web Cam Is Trying To Start I Want To Show A Progress Bar
Oct 30, 2009How to use the background workers in my case. while my web cam is trying to start i want to show a progress bar.
Private Sub strcam_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles strcam.Click
mycam.startCam(PictureBox1.Handle.ToInt32)
End Sub
I tried many methods to achieve that without any luck. I tried also application.doevents().
I have a gif image that shows a circle go round like the one on vista. However when i use the application.doevents() the circle is shown BUT it start go round only when the web cam starts....I don`t know what to do.....I need somehow to perform two tasks at the same time. Can bagroundworkers used in this case or i need to do something else?