I read several posts but I didn't still find solution on my problem I created 2 forms: first is main where I do operations on excel file with 20000 rows and in second form I created progressbar. the name of main form is form1.vb and the name of second one is wait.vb In main form I wrote:
I have a program that runs for some time and I would like to update the user on its progress. The rest of the GUI is updated using Delegates and Invokes and such (Java is Soooo much cleaner in this regard - everything is thread safe!!), but there is no invoke method for the progress bar. How can I use a delegate to update the progress bar when there is no invoke to invoke!!
I have a process (adapter.fill) it takes much time to execute. I want to use thread for progress bar to move. I use code like below [Code] showform is a form that contains progress bar and in its form load progress bar is move but it has a error and it doesn't work correctly. is there another way to use progress bar with thread?
how can i allow a progressbar to be changed on a seperate thread? my code keeps saying that i cannot access it because it was created on a seperate thread:
[Code]...
If it is not worth it, it is not fun - you say programmers are boring but i say they are worth it.
I'm having trouble getting a progress bar to update. I'd be okay just with a moving marquee bar. Basically, I'm reading a database routine in a SqliteReader.vb class. I need to use the worker_DoWork routine, but I'm not sure how to expose my variables coming from Form1: graphData, graphComputations, m_debug to the worker_DoWork sub. How is this usually done? [Code]
My program starts a lengthy background operation in a separate thread, and the main thread makes the ProgressBar start scrolling. My question is, how do I tell the main thread how to know when the background thread has stopped, so it can turn off the ProgressBar?
I have a windows form with a progress bar and a button to start/stop the process. I am performing some action when clicked on 'Start' and updating the ProgressBar accordingly and its working fine. But when I try to click on the 'Stop' button when the process is going on, I couldn't access the Window. If I click for multiple times, I am getting (Not Responding) on the titlebar.
Then, I created a thread and run the function (which performs my task and update the ProgressBar) in it. I am getting an error that it could not access the control which is created in another thread.
I'm having difficulty in working with MultiThreading.I want to add to my project a ProgressBar to show the working flow.I'm getting combinations from many Strings, the number of combination can be really big, so it takes few seconds or minutes.
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.
i am trying to create a module that will start a thread to go do something. once the "something" is done i want to notify the calling form that the event is complete. i left out the thread stuff since its not relevant to the question. the following code would work fine in VB6, but .net sees it as an error because FRM does not have a FRM.done, "DoSomething" would could called by multiple forms [Code]
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.
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.
I want to create a progressbar in a winform. My winform contains few btns..process,export are two main btns. When i click process its taking tym to load the page, i want to show that in a progressbar![code]...
I am trying to use a progressbar to show on main form and then finish when next form is loaded, I have got this code.
1. When I click on button, it must open next form, but the next form must only open when the data in my list box has been loaded from Access Databse. When I run my program, it only shows the progressbar and don't open the next form.
Main form code:
Public Class Main
Dim PB As ProgressBar
Private Sub main_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load End Sub
I am currently working on a project that has a splashscreen This splash screen is designed to be shown when the main form begins to load its requirements, and then closes once it has loaded... Currently it works like so:
Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load frmSplash.Show() dolotsofloading() frmSplash.Close() End Sub
I have a form let's call it Form1 that calls another form(Form2) Form2 to has a bit a code that needs to load in the LOAD_EVENT and takes about 4 seconds.
I have made a new form(frmProgress) that only has a progress bar.I want frmProgress to show up and load the progress bar meanwhile Form2 is loading.I've tried using BackgroundWorker but I can't seem to get the grasp of it.
I have a form where I generate a report on some button click. I need to show another Form in Modal Form, And Place Progress bar on that and Increment the status, from calling form so that when progress bar is running user cannot close the form (where I placed button for showing report). To calculate progressbar's percentage is in the form where button to show report is.
If I insert in a Form a progressBar (Max value 1000) and I write this very simple example
For x = 0 To 990 Step 10 ProgressBar1.Value = x Threading.Thread.Sleep(5) Next Me.Close
If I run the code with Windows7 setted as Windows Classic I can see the progress bar value go to the max value and after few time the Form Closes (same with Windows XP).But If I run the program with Windows7 setted as Windows7 Basic the progress bar value ONLY goes to the HALF max value and after half time the form Closes.
The code is the SAME, the PC is the same, Seven is the same (only personalized with different theme) but under Windows7 Basic it seems that For x = 0 To 990 Step 10 becomes For x = 0 To 550 Step 10..The INCREDIBLE thing is that if I insert in the For... Next a row like:
Debug.Print(ProgressBar1.Value.ToString)I obtain right values until 990... but for my eyes the progress bar only goes to half value in half time, then the Form closes.
I pass progressbar byref to the processing() function on ClassLibrary. My main form freezes when i run this.How can i prevent my main form by freezing? My Function is always on the class library, so is there any way or any type of approach to this problem. I need the progressbar to be accurate in showing the process.[code]...
(1) User should be able to see progressbar form in continuous/marquee style. (2) When one task is completed, title on the prog.bar form is changed (3) when final task is completed, progressbar should go away.
What my architect wants: [Code] Downloaddata.vb class, that will actually do the work,and will implement the interface. So DoMyWork(dim frm as ProgressBarForm) implements Iwork.BeginWork.
Twice, it will report the stauts back to progress bar form. ProgressBarForm.vb class(it has BGWorker Thread) will have one public method(name ShowMyProgress) that Downloaddata class can call from its DoMyWork method when status is changed. And also implementation of all 3 events of worker thread.
My Questions:
1. Where should I put BGWorker.RunWorkerAsync 2. What kind of logic should go in ShowProgress method in progressbar and also in DoWork event?
Do I need application.doevents? In nutshell, how Progressbarform and DownloadData will communicate back & forth?