Command Of DoEvents In Program 2008?
Mar 16, 2009What is the command of DoEvents in VB2008?
in VB6 when I was doing a loop I wrote DoEvents in the loop to continue with other events.
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VS 2008 Unable To Use An Application.DoEvents?
Dec 11, 2009I have a unique situation in that I've developed a VB.NET application for AutoCAD. The way this works, you build your project into a dll and utilize AutoCAD API references when designing the project. From AutoCAD, a "Netload" command will load your dll into it's namespace to run. AutoCAD then essentially takes ownership of your application from here on out. The application is ran using a command defined in a method's attribute:
<CommandMethod("CommandNameForApp")>Public Sub MyCommand()
'Code Here
End Sub
Due to the heavy load of processing loops as it evaluates AutoCAD drawing data, processes this data, and generates many, many Excel reports, I've added a boolean property called Cancelled to my Progress class. When the user cancel's the process, this is seen by the process and further evaluation is ended and everything is cleaned up nicely. In order for this to work though, I have to implement Application.DoEvents. Without it, the Cancel feature will not work at all. With it, now instead of allowing the application to stay loaded, the Command method is fully closed.I have added a go-to point and simply verify that the application isn't closing because of a user-cancellation event. Here's what it looks like now:
<CommandMethod("WireShop")> Public Sub WireShopApplication()
'Initialize Configuration File Data
'Initializes ValidBlocks, MarginDistance, WindowDistance, and HelpFileName Properties
If ConfigurationFileInitialization() = False Then Exit Sub
[code].....
In my opinion, this seems a little hokey. However, I'm not that familiar with exactly what Application.DoEvents is doing in the background to understand how to "head it off at the pass".
VS 2008 - Single Instance (Command Line In Program)
Aug 6, 2011I use a single instance in my application. What if I give command line arguments to the exe of my program, so I can be selective in what was given command line in my program, but still single instance?
Example:
test.exe /show
When the command /show, then my program will
Form2.Show
Form2.BringToFront
VS 2008 Make A Program That Sends An AT^ Command To A Port?
Aug 29, 2010I want to make a program that sends an AT^ command to a port The AT^ Command is
AT^CARDLOCK="TEXT IN TEXT BOX 1"
Command Line Program To End Before Moving Onto The Next Command In Loop?
Feb 4, 2011I am using a CheckedListBox that is populated with Filenames (full path, i.e. C:TestTest.jpg)When I have the files that I want in the CheckedListBox I wish to click a Start Button which will process the list one at a time using an exe program that runs on the Command Line. There are arguments that need to pass to the command line as well as the file location in order for the program to process.I currently have it working but the issue is the loop finishes quickly and it is left up to the CMD.exe to finish the process. What I would like is for the LOOP to wait until each file completes processing before passing the command for the next file in the CheckedListBox.There some reasons I wish for it to work this way.
1) I would like to have a button that can Pause/Restart the Loop.
2) I would like to have a button that can Stop the Loop so the whole process can end.
3) I would like to have the Loop remove each file one by one from the CheckedListBox after it has been processed.
4) I would like to display a Message once all the files have been processed.
5) And if it were possible I would like to report the status either by text or a progress bar showing where it is at in the process.
6) And the ability to add some error handling if possible.
Since the Loop finishes so quickly as it just passes the command to the command line using the & as a seperator it is the command line that is handling the rest of the process. Because of this there is not control over it in the GUI.The code I am using allows the Command Line text to display in the Form so it won't open up a seperate window to run CMD.exe. This is the desired affect as I would like everything to appear to run from within the Form itself.
[Code]...
Command Line Strings - Make The Program Close If The -1 String Is Sent With The Program
Feb 25, 2010If e.CommandLine.Count > 0 Then
Dim IncomingCommand As String = e.CommandLine.Item(0).ToString
If IncomingCommand.Substring(0, 2) = "-1" Then
form1.close()
End If
End If
I am trying to make the program close if the -1 string is sent with the program. See my installer allows for me to run certain programs before it actually installs, but it doesn't shut down copies of the program itself. So I have a next startup instance set to shut the program down if the -1 is received. But if the program is not running it starts up instead. This is not desired. form1.close doesn't work. e.cancel = true doesn't work, etc etc. What can I do to make the program not start during this instance.
Convert Old GW-BASIC Program To A Command Line Program With Arguments?
Mar 1, 2012This is going to be a lot to ask, but I'd like to convert my old GW-BASIC program to a command line program with arguments. I'd like it to operate as follows:
elapse [drive:][path]filename This is my old code.
5 CLS
10 OPEN "G:Calc.txt" FOR INPUT AS #1
20 WHILE NOT EOF(1): INPUT #1, A$, B$
30 IF MID$(A$,3,1)=":" THEN C$="DOUBLE DIGIT":GOTO 50
40 IF MID$(A$,2,1)=":" THEN C$="SINGLE DIGIT":GOTO 120
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What Can Use In Replace Of The DoEvents() In Vb6
May 23, 2005I am using ASP.NET and was wondering what i can use in replace of the DoEvents() in vb6?
View 5 RepliesWhat's The Equivalent Of The VB6's DoEvents In .NET
May 4, 2009What's the equivalent of the VB6's DoEvents in .NET?
EDIT:I have a Sub that takes a long time to do its work. (it has a do-while) when I call it, The form turns white. in VB6 I used to put a DoEvents in the method (inside its do-while) to prevent this.
Application.DoEvents Alternative?
Jun 6, 2011Any good alternative to using DoEvents in VB.NET
View 6 RepliesHow To Cancel BackgroundWorker In WPF Without DoEvents
Jun 2, 2011I have a search box that works great in WinForms, but is giving me trouble in WPF.
It works by starting a search each time a letter is pushed, similar to Google.
[Code]...
VS 2010 AccessViolationException - .DoEvents
Apr 9, 2011I have a simple loop that "sleeps" a thread..Out of nowhere i will get this error below, it could be 1 minute, 20 seconds, 5 seconds, all at random times...how to fix it?
View 7 RepliesApplication Hangs On Call To Doevents?
Dec 22, 2010I am re-posing this question because the prior post has gotten really full of side issues so I fear the main problems has been lost.I have a windows forms application written in VB.NET which scrapes information from serveral web pages? I am having problem with one particular site where partway through the page navigation my application hangs. When I press pause (or break) in the debugger, it stops on a call to System.Windows.Forms.Application.DoEvents.
View 7 RepliesDoes DoEvents Affect Only Current Thread?
Jun 7, 2011I have a simple 'Working' form that runs on its own thread to keep the user informed that the application hasn't died during long running operations. In order to get the working form to update I had to insert a DoEvents() call. I'm curious, will this only pump messages for the current thread I'm in, or will it do it for the whole application? I would prefer that the main window stay unresponsive till the operation finishes. Just to be clear, I'm fine with the code I have, but I would like to know how DoEvents() behaves with threads.
Below is the code for the working form.
Public Class frmWorking
''' <summary>
''' Creates and starts a new thread to handle the Working Dialog
''' </summary>
''' <returns>The thread of the Working dialog.</returns>
[Code] .....
Exit Out Of Application.DoEvents() Loop?
Dec 15, 2009how to exit out of the Application.Do() as i am hanging in that .Here is a sample of my code.
Imports PDFCreator
Imports System.Windows.Forms
Public Class Form1
[Code]....
Hooking In To Application.DoEvents Method
Jul 25, 2009I am not very familiar with VB.NET so I don't know if this is possible.Some code I am working on is setting the properties of a very large class. In the setter of each property an event is raised to indicate that the class data has changed. An event handler then serializes the instance of the class to a database.Obviously I do not want this to happen after each property is set, so I need to either have a delay before saving, or something else.I am keeping a large list of instances in a cache implementation already, so one option would be to only process the cache every now and then and save all unsaved instances in cache to the database.So I tried to see if I could derive a class from Application (and override DoEvents), but it is NotInheritable, so no luck there.
View 3 RepliesNet Not Responding, Application.DoEvents And Threading?
Mar 8, 2009My mdi VB.Net application performs a long operation on some data. Ideally I should use a separate thread to prevent the dreaded "Not Responding" message.My problem is if I use a separate thread users then have the ability to click on other controls in the application which can directly affect the operation my background thread is working on, creating an error.
Is there any way to prevent all the mdi windows, toolbars and other controls from receiving mouse clicks and keyboard input during my background thread's operation?
Or is there a way to clear the message que before performing a Application.DoEvents?
Use DOS Command In Program?
Jul 10, 2011I want to run this "rar a -rr10 -s c:ackup.rar c:file.txt" DOS command in vb.net, my main problem is that i want to compress file in Winrar software using vb.net coding. a button is press in window form that compress the file.
This "rar a -rr10 -s c:ackup.rar c:file.txt" DOS command compress the file.txt to backup.rar
Application.doevents() Causing Some Sort Of Overlap?
Nov 9, 2009I'm trying to automate the process of logging into twitterfeed.com, and filling in the information (the feed url and twitter username are pulled from textboxes). I had it mostly working the other day, even if it is a bit sloppy (the only way I could get one button to click is to send 50-some tabs). However, lately it seems to enter in a sort of loop. When I pause the program, Visual Studio indicates that it is the Application.DoEvents in the Private Sub "wait" that is still running even after it should be.
Public Class Form1
Private feed, username, temp As String
' Code stolen off of a website as an alternative to sleeping, or trying to do a timer + while combo like I had been doing
[Code].....
Getting An Applications.DoEvents Event To Function Properly?
Nov 21, 2010I'm having trouble getting an Applications.DoEvents event to function properly. VB keeps telling me I dont have a valid argument. Can anyone look at this and explain how I would complete the expressiojn for Application.DoEvents.
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VS 2010 An Extra Click To Get Out Of A While Loop Using .DoEvents() ?
Mar 15, 2012I wrote a small API gui to communicate over foundation fieldbus.I've used a While loop that constantly reads some parameter values from the bus. At the end of the While loop, I put Application.DoEvents()so that I can use another button to stop the reading process. It all seems good and easy.. but there's one problem: when I get the While loop running and wish to stop the process, I have to first click somewhere on the form, anywhere, before I could click any buttons(either 'stop reading' or 'reset' button mostly). That extra click makes my form seem unresponsive and lame.I wonder whether this is a problem pertaining to DoEvents() or my use of Foundation fieldbus.
View 1 RepliesRun A Command Line Program?
Mar 25, 2011I'm a bioinformaticist, I'm trying to teach myself how to develop programs that are easy for everyday users to automate programs used in biological research. I thought VB would be great for helping people be more familiar with bioinformatics. Unfortunately, I'm brand new to VB and am stuck with my first program.
All I want to do is have a window pop up where the user then selects a file from an OpenFileDialog box, and pass the filename to a bioinformatics program names msconvert. What I've been doing keeps giving me a message that seems to says, "Unhandled exception has occurreed in your application. . . . File not found."
However, as you can see in my code (below) I have a MsgBox that shows that the correct file HAS been selected, and I can get the whole thing to run from command line.[code]....
Run A Program With Command Line?
Oct 23, 2011how can i make my own program must run with command line? if the program run without command line, it show some error msgbox..
View 4 RepliesRun EditBin VS Command In Program?
Jul 6, 2011I'm trying to run a VS Command line inside my application so users can patch a file just by running it.
editbin /DYNAMICBASE:NO Application.StartPath & "TestP.exe"
I need to do this from inside my application. Anyone know how? If not possible, anyone have any other solutions to accomplish this?
Call Same BackgroundWorker Multiple Times Without Using Application.DoEvents
Mar 4, 2010I'm running in to a problem that I was able to fix with Application.DoEvents, but don't want to leave that in because it might introduce all sorts of nasty problems. Background: Our app is primarily a desktop app that makes many calls to a web service. We control everything but changes to the overall system design are not going to be seriously considered. One of those calls, Calculate, is used very often, and occasionally can take a few minutes to process all the data to return valid results.
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Calling DoEvents From Inside Custom Control Library
Sep 21, 2010I have a custom control's library. Now there's a control which looks like a panel, and when it opens up I want to animate its vertical growing like this:
For h As Single = 0 To finalHeight Step 0.5
Me.Height = CInt(h)
' HERE I WANT TO CALL DoEvents'
Next
Me.Height = finalHeight
If I don't call DoEvents in the loop then the animation is not shown, I only get the final height without a visual feedback along the way. I can call DoEvents from inside my main WinForm project, but can't inside a library. How can I do that, without drowning into the deep threads waters?
Forms :: DoEvents Or Update GUI While Database Query Is Running
Aug 11, 2011I have an application that performs database queries using "Imports System.Data.SqlClient". I want to display an animated GIF on the taskbar which spins while the query is running. However, during a query the application simply hangs and does not update the GUI until the query has finished, at which point the spinning icon is set to invisible anyway. Is there any way to force the GUI to update while the query runs?
View 2 RepliesC# - Hijack Program's Command To Run Notepad?
Mar 23, 2011I have a utility programs's EXE file, when i run this file there is a winform only and there is button when we click on it, it run windows's notepad. Now I want to hijack this program's command to run notepad and instead of running notepad I want to run MS Word. I know C# and VB.NET. What I need to do this ?
View 2 RepliesCode Search Command In Program?
Jul 23, 2010What are the coding 4 the following in VB.net:
Search command
Delete Command
Login Window
Command Prompt Closing After A Second When Run The Program?
Nov 9, 2011This is my first VB program, but how do i make the command prompt stay ?
Option Strict Off
Option Explicit On
Module Module1
[code].....