Unable To Use Task Library In 2010?
Sep 20, 2010
I just converted a project from 2008 to 2010. I didn't encounter any errors in the conversion.I tried to add HTML Imports System.Threading.Tasks. This gives the "...doesn't contain any public member..." warning and naturally, the .Tasks library is not recognized. Is there any trick to the conversion, setting in the properties, etc. that I need to deal with?Note that I have a "from scratch" project that accesses the System.Threading.Tasks class with no problem. Both projects are contained in the same Projects folder as in:
Projects/ProjectThatWorks
Projects/ProjectThatDoesn'tWork
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Aug 1, 2011
All of the sudden, I'm no longer able to build a Solution without getting an error in VS 2010. A minute ago I was able to build, and now I can't.
The error is:
Unable to load referenced library 'C:Program FilesReference
AssembliesMicrosoftFramework.NETFrameworkv4.0System.DirectoryServices.dll':
System Error &H8013110e&
I've checked and the .dll is there. I've re-booted and grabbed the latest version from Team Foundation Server.
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Oct 26, 2009
creating small task scheduler in vb.net using in built library of vb.net . " I checked out Codeproject's ScheduleTask.dll solution (vb)"But problem is i want to create using inbuilt library of vb.net not using solution in vb.
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Jan 28, 2010
I have been following the development of the .NET Task Parallel Library (TPL) with great interest since Microsoft first announced it. There is no doubt in my mind that we will eventually take advantage of TPL. What I am questioning is whether it makes sense to start taking advantage of TPL when Visual Studio 2010 and .NET 4.0 are released, or whether it makes sense to wait a while longer. Why Start Now?
[Code]....
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May 6, 2009
i have installed msdn library 2008 sp1. it is shown in the Programms but i cannot locate how and from where it to open. i donot know from where i will open that to use msdn library.
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Mar 1, 2012
I am trying to access appSettings using the following syntax and I have used it before in my many website projects but not in a class library project. In this class library project I cannot even access the AppSettings Keys. Is there any way I could access the AppSettings Key from my class? Is the class library project's app.config or project structure behave in a different way?
[Code]...
I have already added Project Reference to System.Configuration and imported in my class. When I run my code it says, "Object not set to an instance of any object".
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Jun 24, 2010
I have a big problem.I'm starting with Visual Basic (2008) and I get this error when you want to run the program,
Warning 2.Unable to load the type library for reference "MSCommLib.Library not registered. (Exception from HRESULT: 0x8002801D (TYPE_E_LIBNOTREGISTERED)) prjRxData
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Aug 19, 2011
If I create a DLL using VB 2010 express can it be used by previous versions of of .Net (3.5, 2.0)? Will the DLL use .Net 4.0 components, which is what I want. I don't see a way to force that to be the case.
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Nov 24, 2010
is it guaranted that a task A started before TaskB will be completed before task B assuming the task do the same level of operatons?or in other words is there a chance that a task B will finish before tast A in the assumption that the task calls the same procedure?
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Jan 7, 2012
How to display my application in task bar ? like here:
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Nov 26, 2011
I am making a application that shows the current applications running. So far, I have made this code that shows the processes that are running:
vbcode
Imports System.Diagnostics
Public Class Form1
Public Sub New()
InitializeComponent()
[Code]...
However I only want to show the list of applications. Anyway to do this?
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Sep 22, 2010
I'm trying to make a program that will allow people to queue certain tasks at certain intervals. (i.e. the task is done every 15 minutes, etc.) They can make as many tasks as they want, at whatever intervals they want. How can I possibly make a task queue? Like, how can I queue up code that I already have made to be run every so and so often, according to what the user inputs? And, if 2 tasks are started at the same time, they will both still be done, it's just that one will be done as soon as the first one is complete.
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Jun 7, 2011
Here is the error I get when trying to debug my program: The "ResolveAssemblyReference" task failed unexpectedly.
System.IO.FileLoadException: The given assembly name or codebase was invalid. (Exception from HRESULT: 0x80131047)
[code].....
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Mar 24, 2012
i created a windows blocker to prevent users access, and only give access to the computer for a certain time if they pay....In the block state taskmgr can not be accessed also no other method can close the blocker. but once the computer is unblocked for use it become vulnerable only to the taskmgr since i have to give access to the taskmgr when the program is not blocking access. Is there anyway to prevent my program from being KILLed in the taskmgr or is there a way to restart the blocker if the user KILLs the program?
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Feb 1, 2012
At my school people use the keyboard shortcut (CTRL+Shift+ESC) to open Task Manager. We are not allowed to use it so we get a message box saying that we do not have permission to do that. People hold down the buttons, so that a long line of hundreds of popups open. What code do i need to close all of the popups when a button is pressed?
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Jan 13, 2012
I cannot get Excel 2010 to close by using VB on my Windows XP computer at work. I have what I thought would be able to close it, but it doesn't. I do not get any errors, it its just that after multiple times of the code running, I have multiple instances of EXCEL.EXE running in the task manager, which causes problems. I am going to post the code below:
Option Strict Off
Imports Excel = Microsoft.Office.Interop.Excel
Public Class CompareDataExcel\
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
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Jan 7, 2011
I'm using VB 2010 and simply want to have a button on the form that says Minimize.I want the form to minimize to the task bar or the notification section .I've looked at other ideas, but the code is for prior versions of VB (2003 and 2005) and some for C #Could you please email me some sample code to handle this?
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Oct 12, 2011
I'm creating a dll (class library project) file for an OCX. I have an OCX (not Active X, just normal ocx and no need to put on form in order to use it.) which I normally call it from normal windows project's code behind. However, in order to use this OCX, I need to install one software and register with the correct license key.
[Code]...
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Jun 23, 2011
When multithreading in VB, if you close the form while different threads are running, the process itself will not end. Is there a way I can force all threads to end, or end the process like in the Task Manager, when the form is closed?
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Mar 28, 2011
I am using visual studio 2010 and tried to create a class library which I then use in an application that will create tasks using the TaskFactory and execute the class functions from the newly created class library. However I get the instance not defined errors in the application.
CLASS LIBRARY:
Assembly Name: GPStream
Root namespace: TFStream
Project with different classes:
GPStream:
gStream.vb,
[Code] .....
I do have it added as a reference.
Class library:
Assembly name GPStream, Root Namespace GPStream
Project name GPStream, Main Class gStream
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Nov 27, 2011
I need to find out if particular library exists on the users PC. Specifically, d3dx9_41.dll.Typically, this file is in the System32 folder and I've confirmed that its actually there on my dev machine.So I thought I could just use the Exists method of the File class. But, it always returns false. I even tried using the LoadLibrary API, but it always retur
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Jan 31, 2012
I am trying to create a Library for like code that we use in more than one application. One call involves an array where I need to create a pointer to the array for what I need.
Is there a way to pass a value ByRef, have it increment, and return the value back to the original call?
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Jun 21, 2011
I have a Visual Basic Class Library project. It generates a DLL. Is there a method to generate a static .LIB to which I can do a static link?Alternatively, can I do a static link against a DLL?
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Jun 4, 2012
I am trying to track the progress of a file that is being extract with a progress bar. but i have no idea on what i should set as the max of the progress bar and the value..
here is my
Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
Dim ZipToUnpack As String = "C: est.zip"
[Code]....
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Jun 17, 2011
I was wondering is it possible to put forms into a class library project and if so could I use those forms as an mdi child from my main forms app?A bit behind what I am trying to do:I am creating a game which is essentially going to have its own 'operating system' As the user progresses in the game they can 'install' new software into their operating system.I have my 'Desktop' that is an MDI Parent and what I want the users to be able to do it when they have purchased a new bit of software (also in game) the game will connect to my central server download a dll and place it in a directory, that is essentially installing the new bit of software and the game will then pick up that dll and add a new button the Programs list and when the user clicks on that software in the Programs list it will launch the form in the Class Library as an MDI Child of the 'desktop
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Feb 23, 2012
I've created a class library and it's shared by several projects I'm working on.
I added a reference to the DLL - but it appears to have copied it locally - and that's causing problems when I modify the class library. Seems I have to drop the reference and re-add it.
I'm seeing info on the web about adding a PROJECT REFERENCE but can't seem to get that to work.
What is the best method of sharing a class library with several other projects.
Actually - should all my projects be in one SOLUTION? Is that preferred.
It will be 5 projects all working with the same class library...
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Feb 16, 2012
I having problems with my program named Library System.As you can see below, I have a form named Books3.vb (Borrow/Return Form)For example, I am the Librarian and you are my student. You borrowed a book that costs a regular fee of 350 (money) from my library now as of 2:05 pm, 2/16/2012 and I assigned you a deadline to return it before 4 days at the same time 2:05 pm, 2/20/2012 and pay the regular fee. If you failed to return it on my assigned time, you will be charged a penalty fee. A penalty fee will be computed starting at the end of the assigned deadline and time 2:05 pm, 2/20/2012 and that will be 1 (one) per hour. For example, you returned it on 2/25/2012, you will pay the regular fee of 350 + a penalty fine of 120 (24hrs * 5days). I just wanted to code it on my program in which will make the computation automated.
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Mar 7, 2011
I'm getting a design time NullReferenceException on Dim db As Database = DatabaseFactory.CreateDatabase()and I can't figure out what to do about it. Has anyone experienced this problem or know the solution?
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Apr 15, 2010
is there any msdn library for visual studio 2010 for download?I am talking about the offline library
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Sep 20, 2011
I'm attempting to create a little library to encrypt and decrypt Files with AES. There are loads of examples of how to do this on the internet so coding is not a problem. There are however a few questions regarding cryptography and AES in general.
#1 Does the IV need to be kept a secret like the key ?
#2 Can I just hash a string with SHA512 to make a key for AES ? or do I need to use PasswordDeriveBytes ?
#3 In the case of me using PasswordDeriveBytes Do I need to keep the salt a secret ?(or do I need to keep it at all)
#4 Can I generate the IV from the same password that the Key is derived from ?(if so How ?)
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