Asynchronus Output Capture (BeginOutputReadline) Method Doesn't Work From Separate Class In VB

Jun 11, 2012

I've got a simple tool written in VB in VS 2010 that has a series of command buttons which run Windows command files and the output is sent to a Rich textbox object on the main form (the comand files take awhile to run so I wanted the output to show up in the RTB as it was produced to show progress). All worked well until I made an update to the tool so that the series of buttons are no longer hard-coded, but created dynamically from information in the app.config file. To do this, I use a button

[Code]...

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Why Doesn't The DeleteDirectory Method Of The Computer.FileSystem Class Work On "special" Folders

Aug 14, 2008

if they choose to use a networked version of my software, I will need the main server doing the authenticating. This is a problem, because from what I understand, it is quite easy to clone MAC addresses. I have looked into using the CPU ID and the HDD ID, but those are not unique, well at least I don't think so. Reason why I say they are not unique is because someone has the exact same CPU ID as me, and the HDD ID changes from partition to partition (same drive). Maybe the HDD ID is a partition ID instead? Anyways, I was thinking maybe I could get the Physical serial number of both the HDD and CPU, but I have not been able to find anything yet.

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Why Doesn't The DeleteDirectory Method Of The My.Computer.FileSystem Class Work On "special" Folders

Feb 18, 2010

We have a network share that is used for transferring files between users on a daily basis. Every day at 3:00 am we run a vb6 program to clear the directory of this network share.

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Extension Method Doesn't Work

Jul 5, 2010

I wanna create extension method for IEnumerable(Of FileSystemInfo). However, compiler says "'Sort' is not a member of'System.Collections. Generic. IEnumerable(Of System.IO.FileSystemInfo)". What is strange is that IntelliSense shows this method. Where's error? [code]

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Console.Clear Method Doesn't Work?

May 29, 2012

i copied

' This example demonstrates the
'Console.CursorLeft and
' Console.CursorTop properties, and the[code].....

the code straight from the source <<< a couple of pages back thataway i'm getting a build error about the users ameappdataloca emporary projectsfile.exe not found.VB Express 2008 on Windows 7. how to output text to different parts of the screen.

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UploadString (Post Method) Doesn't Work

May 8, 2009

I am trying to post simple data to some site, in this example to a php file on my local server. My VB.NET Code:

Dim W As New Net.WebClient
Dim A As String = ""
W.Encoding = System.Text.Encoding.UTF8

[code]....

so, when I start the VB.NET App, it just simple calls the p.php (GET) but POST doesnt work. Tried everything. Upladed the p.php to other servers, checked other variables in php ($_REQUEST), used the UploadString(URL,"POST","bla=test), used PERL, ASP.. nothing.I am using .NET Framework 3.5 how to Post data with vb.net?

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Why Does One Method Of Declaring A Bitmap Work And The Other Doesn't

May 27, 2009

I can't figure this out. I have a bitmap that will be used throughout an application, so I can't declare it with a Dim statement in a procedure, or it isn't recognized as having been declared in other procedures. So I declared it at the top of the form class, two ways. This one works: Private MyBitmap As New Bitmap(622, 461) It makes a bitmap to the exact size of a picturebox I have. But I want to be able to change the size of the picturebox and not have to worry about going back into this declaration to set things up, every time I decide to change the box's dimensions. So I tried this next version, but it doesn't work:

[Code]....

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VS 2008 - Class Doesn't Work

Aug 1, 2009

When I use this

[code]...

But for some reason, it doesn't place the image into the picture box.If I use this, and replace it with the first box of code, then it works fine.

[code]...

So, why doesn't it work in my class?

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Converting Object To Class Doesn't Work

Jan 9, 2011

I am using VB.NET 2010.I have a Queue to save different data (which all come from a class of mine) as FIFO Now, I want a Function to count the saved classes in my Queue, but this isn't working

My Code look like this

Private
Function
QueueSum(ByVal
myQueue As

[code]....

TryCast seems to be wrong. - because the Intelli Sense tells me, that "SATZ" isn't declared.

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Why Doesn't XmlSerializer Work For Shared Class Variables

Dec 8, 2011

I have the following class which I want to serialize to XML:

[Code]...

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Class Collection Property - Method - Allow For An Employee To Be Assigned More Than One Work Location

Jun 17, 2011

I am experimenting with a transition from my application built in VB6 to vb.net. I know, about time. At the same time, i am making changes and improving upon the original. One area that I am working on is within my employee class. very standard class, nothing fancy. One change I want to make though is allow for an employee to be assigned more than one work location. Employee has (is assigned) Stores. In reading about collections, it appears they are different in .net (as they should be), but I don't know what the sytax changes will be to implement my changes.

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Select Method Of DataTable Doesn't Work - "value Violates The MaxLength Limit Of Column"?

Nov 11, 2011

I need some help on merging 2 tables. A simplified version of the issue and the error is outlined below. I am doing the following steps: 1. Create & Fill the schema of the table TblA by an adapter. TblA = DSTasks.Tables.Add("A") AdpA.FillSchema(TblA,

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Extension Method Doesn't Work [VB 2010 - VS 2010 RC]

Apr 20, 2010

I have the following extension method. However, when I type "File." this method doesn't pop-up. What did I wrong?

[Code]...

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Tooltip On Windows 7 Doesn't Work VB2010 - Thecolor Doesn't Change ?

Jun 12, 2011

I am trying to change the background color of a tooltip

I am using tooltip.backgroundcolor = color.colr

No errors but thecolor doesn't change

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How To Capture Form Events From A Separate Running Process

Mar 21, 2011

I'm trying to automate a product that provides no such automation capability.I've take a cursory look at loading the app in a separate AppDomain, and also, through reflection, executing the Program.Main() to get the app running. I also tried getting the windowhandle from a separately created Process object (which I've learned will not work).If I have a reference to their assembly added to my project so I can reference an instance of "TheirProduct.FormMain", what, if it's possible, is the best way to go about capturing events from that form? What I need to do is to be able to capture a couple events, and perform a few Button.PerformClick() against the form.

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Strongly-typed Generic Method Invokes Its Argument's Base Class Method Instead Of A Shadowed Method In T?

Oct 19, 2010

Consider a MyForm class that contains a shadowed implementation of Show(). It also contains a CreateForm() method, which accepts an instance of the form and calls the shadowed sub:

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Capture CMD Output?

Mar 7, 2011

Target:

Send commands to a CMD.

Retrieve their corresponding output (result).

Present the output in a TextBox.

Example:

send "ipconfig" to CMD.Present the output (result) of the command in Text1 TextBox.

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PerformClick() Doesn't Work - How To Make It Work

Feb 2, 2011

I have an application that requires data be entered, and after entering, a button is clicked to process that data. Clicking the button works just as it should--the data is processed properly. In constructing a test module, I provide a set of data values, followed by:

btnWhatever.PerformClick()

Nothing happens. I have used this syntax for years, and it has always worked flawlessly. I have triple checked everything else and isolated the problem to the failure of the PerformClick(). The PerformClick() is in a test subroutine that does nothing but fill textboxes and labels with default data, then calls the PerformClick() on the button to begin processing. Again, the button works fine, the data is entered as it should be, but the PerformClick() does not fire the click event.

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.NET Multithreading / Calling Invoke On A UI Control From A Class In A Separate Class File?

May 13, 2011

Example:

Two files - TestClass.vb, myForm.vb

TestClass.vb looks as follows:

Imports System.Threading
Public Class TestClass
Private myClassThread As New Thread(AddressOf StartMyClassThread)

[code]....

The result:Application runs, no errors or exceptions.Displayed is the listbox and the Start button.I press the start button and a msgbox says "Not Invoked" as expected and upon clicking OK to that msgbox "Start Button Pressed" is added to the Output listbox control.Immediately following that the msgbox pops up again and says "Not Invoked". I was expecting "Invoked" as a separate thread is trying to use the Output listbox control.Of course this results in the Output.Items.Add being attempted which results in no visible result as the thread is not allowed to directly update the UI control.

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Capture Steering Wheel And Pedal Output?

Sep 11, 2010

I want to capture the Steering wheel and pedal output with my vb.net program , so my question is what kind of brand or type of Steering wheel and pedal should I look for that would be the easiest for this?

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Obj Directory - Keep Source Code Separate To The Output From Compilation?

Sep 9, 2009

What is the best way to keep my source code separate to the output from compilation? I can change the "Build output path", but I am still getting files created in the "obj" directory whenever I compile. I want to have a directory tree that only contains source code.David Streeter

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Output Each Line Of Textbox To A Separate String Or Label

Oct 14, 2009

I need to out each line of text to a seperate textbox. or label. Im not sure about a string. Can a string hold a value like, "192.168.1.1 2302"? If so, then how would i output it to a string. If not, textbox or label please. Please keep it simple as possible, since I will probably be needing to repeat this process 500 times, like, a different string for each line, i will have a lot of lines. Dont care about the textbox limit, as long as all the lines are outputted to each textbox.[code]

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Capture Streamreader Output And Return Friendly Message

Feb 8, 2010

Im using a function to set an option on a web page - I'm trying to capture the return message (Which is "ok" or an error), I want to cature "ok" and return a friendly message, otherwise return the actual message. This If Then Else seems to be false for the If even when "ok" is returned:

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VS 2008 Start Timer On A Separate Thread, So It Doesn't Block The UI?

Sep 17, 2009

Is it possible to start a timer on a separate thread so it doesn't block the user interface, or do I have to make a thread that I call from the timer?

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Capture Console Real Time Output And Store The Information In A Log File?

Jul 16, 2011

How can i capture my console real time output and store the information in a log file?

i know that i can write in the file when i write in the console window, there's got to be a better way... how can i capture the console's output stream?

I found that Console.OpenStandardOutput is a stream, but i can't read from it

Dim r As New StreamReader(Console.OpenStandardOutput)
MsgBox(r.ReadToEnd)
r.Close()
r = Nothing

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Capture A Program Initializing And Stop It, So It Doesn't Interrupt Code?

Jun 22, 2009

A spreadsheet formatter that I made for the department opens and closes Excel spreadsheets in the backround. If someone opens Excel while the macro is running, it stalls the entire program. I need a way to sense Excel opening, then stop it, preferably with a message box saying what just happened.

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Webcam Image Capture Work?

Aug 16, 2009

picturebox1.image = system.image.drawing.fromfile(x) x is the location where the webcam store the current image.if the code above would work what is x ?

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Process.BeginOutputReadLine() Causing VSHOST.EXE To Fail?

May 31, 2010

This code seems to be accurate when comparing to the many examples that are similar on different forums and I would think it should work:

Dim pC As New Process
pC.StartInfo.CreateNoWindow = True
pC.StartInfo.RedirectStandardOutput = True[code]....

When I remove the pC.BeginOutputReadLine() command, the application continues to function, but nothing is added to lbOutput.

With the pC.BeginOutputReadLine() command, it gives the error "vshost.exe has stopped working"

Either way, my batch file does what its supposed to do. Any one have any ideas what I am doing wrong with the process?

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Can't Work Volume Meter With Webcam Capture

Aug 15, 2010

i can't work the two codes in the same program the volume meter : [URL]

and the image capture of : (the actual capture ,the webcam image display works) [URL]

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Create An Application To Work In The Background To Capture The F5 Key?

Jul 6, 2011

I'm feeling frustrated. I have spent hours looking for a good piece of code to capture the keypress events in any windows no matter if my application is focused or not. I need to create an application to work in the background to capture the F5 key. Does anyone have any code?

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