Developing An Application For Use Over Different Versions Of The .NET Framework
Jan 4, 2011
I am developing an application using VB.Net which is a simple executable which is to be run from a network drive of our company servers. Most users can access this executable without issue - others however can open the executable but have no connection to our database (even though when running the executable off a local drive such as C:, the database works no problem).
From some posts I have seen this might be a CAS issue - however our IT department suggest the issue might be down to different version of the .NET Framework being to blame. Firstly, is this the issue? Secondly, how can I develop my application to work with different versions of the .NET Framework? Surely this doesn't mean developing many different executables?
I am in the process of developing a messaging framework for a windows application that sends messages to a java application. To be precise when the win app wants to send a message it simply drops the message in a common database table which will be picked up by the java app. The windows application is deployed across 10 application servers (10 instances) over citrix for load balancing.Each instance of the application is capable of sending a message to the java application and each of these messages should have a unique id. From my end I need to make sure every message generated has to carry a unique id so that they can be identified when necessary. All the messages can be cleared every day or two.i am not quite sure about a best method of achieving this. Initially I wanted to create a static method that serves the next available id (incrementing the last id by 1). But this approach willn't guarantee unique number as the application starts only when at least one user is logged on. For e.g .On one server the app starts when a user logs in, he then sends a message and then the application stops when that user logs off. So when a next request for the app comes to that server a new instance will be started.
I don't think this is possible but thought I'd just double check...
I have a class library project (i.e building this project results in a DLL being created) and I add a reference to this DLL in several of my other applications. This DLL project targets .NET Framework v2.0.
However, some of these apps that use the DLL target .NET 2.0 (or 3.5) and some target .NET 4.0. But because .NET 4.0 does not include 2.0 and 3.5 in it, its possible for someone to have .NET 4.0 installed but not .NET 2.0, therefore meaning that they won't be able to run my app because of the reference to a DLL that requires .NET 2.0.
So the solutions as far as I can see are: 1. Include .NET 2.0/3.5 as an additional prereq for my .NET 4.0 apps... ewww. 2. Create a copy of this DLL project and make it target .NET 4.0 then in my .NET 4.0 apps add a reference to that rather than the .NET 2.0 version.
So far I've been using the second option, which is working fine but its just very annoying having to remember to copy and paste any changes I make in one version of the DLL project into the other one.
So is there any way I can have a single DLL project but have it build 2 versions of the DLL, one targeting .NET 2.0/3.5 and one targeting .NET 4.0? As I've written this down I've just realised I could always build the solution, copy the DLL out to another folder, then change the target framework and build it again to get the new DLL but that's still not ideal.
Using VS 2010 Ultimate by the way in case that makes any difference to the options I've got available
I'm looking at the MSDN webpage for TextBoxBase.AppendText Method [URL] Under requirements I see "Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
To the board: Lately I've been getting Runtime error 3447 ("The Jet VBA file (VBAJET.dll for 16-bit versions, or VBAJET32 for 32-bit versions) failed to initialize when called. Try reinstalling the application that returned the error") when attempting to open a certain program (not one that I designed, just downloaded and installed). I installed this program in January 2009, but this error began happening only this past July. someone else to information about the files vbajet32.dll and expsrv.dll. One site said that the problem was probably caused by the file expsrv.dll being absent, but I checked my System32 folder, and it's there. As far as I can tell, it has always been there (the computer was made in 2008, and as I said the program had always worked before). Vbajet32.dll is also there. I tried uninstalling and reinstalling the program, but error 3447 still occurs. I also tried uninstalling the program and installing an older version, but 3447 is still there.
I tried replacing expsrv.dll, thinking it might have been corrupt, but that didn't help, and I cannot register that dll anyway. I can't figure this thing out. Both of the files are there, and I didn't change any settings or anything anywhere between last January and this July. By the way, I am on Vista.
Is there possible to built application which is automating something with some cain of interejs that provide to switch any version of excel? I just want to built universal code for any cain of excel 2000/2003/2007/2012 and just could switch in code if u know what I mean..
The application was developed with Excel 2000 but doesn't work with 2003 or 2007. The save isn't working. Everything I have googled shows this to be a common problem. I just haven't found a solution that works. [code] We the willing, led by the unknowing, are trying to do the impossible for the ungrateful.We have done so much for so long with so little we are now qualified to do anything with nothing.
ASP.NET pros out there can answer this question. I have a single web application that contains a website and a web service - both have several assembly references in common (data access layer, utilities, etc) - however, recent changes made to the web service will require different versions of the common assemblies, versions that the website won't work with (in case you're wondering, the website is some legacy 1.x .NET code that explodes when using the newer version assemblies.)
allow my web service to reference one version and have my website reference another? I can obviously have only one version with the same name within the bin folder.(P.S. - It just dawned on me that I could probably compile and reference the common assemblies with a different name, and place those in the web app's bin folder - but that sounds really fugly...)
I'm a college student who has a basic-intermediate knowledge in VB.NET, C++, C# and Java. I'm planning to develop an application similar to Microsoft Windows (Windows and Sharing Center ).
The application will able to perform Wireless Detection: scanning the area for available wireless network and presenting them to the user of the software, and then user can decide to which network he/she wants to connect.
I am new to vb.net . I was developing application in c#. Now i am working in vb.net. i have a query in vb.net. How to write compund assignment in vb.net ?
ex : In C# , int a,b,c; a=10; b=c=a;
if i did it in vb.net means the value of b is set to false. how do i solve this problem?
I am trying to develop a chat application using Visual Basic 2008. I have referred some articles on the internet like [URL]...rogramming.htm and got the concept of connecting and sending data. But when it comes to real world chat applications, there is user authentication and all that. So I was wondering if it is possible to make my own Windows Live Messenger or Yahoo Messenger!!. I searched web for such a sample or source code, but could not find any. Has anyone here created such an application??
i developed a very simple vb.net application and i need a way for every user to verify that they have paid for it. i would like the simplest method possible. it will be an off-line registration. I am actually looking for a way that I can program this easily myself, and am not interested in third part solutions.
I do have an application distributed with click once. I want this application to be installed (and thus distributed) two times on the same computers. One time as production version and one time as deployment version. When trying to do so, I get the folloging error:
"Unable to install this application because an application with the same identity is already installed. To install this application, either modify the manifest version for this application or uninstall the preexisting application."How do I modify the manifest version in a way that allows my easily to switch between "Production" and "Testing"-Version?
hi, i am developing a windows application in visual basic 2008. when i will install or setup my application to clients' computers, do i have to install the dot net framework 3.5 in every single pc or i can include dot net framework 3.5 in my application.
I am developing an multilingual application in vb.net 2008.I had given a combobox for language selection when user select any language like marathi or hindi then all labels are change in the selected language but i am facing problem with textbox if i select any language it takes input from user in english only.I want when user select any language and enter data in textbox then he is able to enter data in the selected language.
I have to develop a new application in windows. in which i have to develop following thing but i am not getting how to develop it.I have to develop following are the two points:1)To show the http addresses that are visit by other computers on the wireless network.
I'm not new in visual basic but I finished a book of visiual basic in 2005. Now I'm planing to be a2z software developer on windows platform. Do you think that visiual basic is strong language or complete tool for all kinds of software development ? Will C++ or C# come on my way for software development while i'm visiual basic.
I am looking for a contol either listbox or listview to support my requirements. Basically how my application looks is:
[Code]....
Having said these things. I used to program in VC++6, VB6. But using those version now seems not realistic now as I lost touch. But if I have to use the latest 2008 versions, for which I do not have any experience seems scary. So, If you are reading this , and you have got some experience in these fields or using controls that support my requirement, can you please let me know which programming language or IDE and Control should I use to develop this application. PS: the image is made using mspaint and does not represent actual program.
I am new developer of Visual basic and planning to develop WIndow XP PC based application for small retail outlet business, the main functions are to records the daily business transaction and produce reporting at month end.
My questions is what visual basic releated software or tools that I need to install in my Window XP PC for developing this application??
I am developing a twitter application but getting a null exception. when I searched indeep I found I am not getting any Users array from getTimeLine() Method.My user name and password are correct (The application is actually available on twitter API site.)
how to develop unicode application in vb.net and sql server 2008 ?how to start develop and what are the things i have to consider to develop effective unicode application ?. this application should support japanees and english language based on user selection.i took steps but i don't know it is correct.
1. i created tables in sql server with fields, for strings - NVARCHAR, for integer INT, for datetime DATETIME,for numeric NUMERIC.
2. i created another setting-table to have all screens name,label names ( for labels and grid column headers ) and corresponding japanees display names and another column for english display text.
so i'm just going to fetch Japaness/english display names from setting-table on form load and change the labels.Are these correct ? or anyother way to do unicode application effectively ?
i've developed vb.net window application in english language.. its working fine but it has to support japanees language also.. Displaying text, input text every thing should be japanees... so user can select english or japanees, based on that label, input control language has to change..
Just knowing 20 commands i am developing a app?very impressed on myself!Just knowing 10 commands + common sense + special sense each man has i had world most dangerous spy tool....but on my guru & best friend advice i dropped it..but in future will use for good purpose So here is the new scene We are team of workers had blogs,microblogs and other things i decided to create a tool for my self which is like office assistant to assist in our work at office
my tool will do the submission process when we are not in our office
my idea is using a web browser control and do it with vb commands
so kindly think yourself in such position do you agree to do submission task with web browser control or you can do it some other methods?
whats your opinion? what i mean open a website on web browser control submit the details from listbox(which increment on every submission)i think you now got how we are going to do this!!!
so i am need some one advice shall i proceed with this?i had three big challenges
1.Time 2.Yes Of Course Time 3.Ya Time But Time + Work Accuracy
so kindly guide shall i use the web browser control or use method like direct server post?
I am a new bee in windows application in VB.net.I am now in the process to develop a windows application from zero.I have searched online on the reference to develop a windows application from zero but fail.
I also fail to find any resources on beginning on vb.net which introduce all the tools inside such as menustrip.Does anyone has any idea how to find out the resources?
I'm about to start a new project and want some advice on how to implement.I need a web application which contains a booking module for reserving timeslots, and a time management module which will enable employees to clock in / clock out.
If I am writing an update to the time managment module, I don't want to disrupt the booking engine availability by releasing a new solution containing both modules.to make things more difficult, there is some shared functionality like common users, roles and security.Here's a suggestion I've gotten, which sounds a bit cruddy, but may be functional.Write a 'container' web application which consists of basically a frame, and authentication / security features. This then has links which, will load the 2 independantly built and released web applications into the frame.I can see that say, if I wanted to update the time management module,
I am developing an application which will be used to scan the barcode from a particular document, as i am just developing who i will get know that barcode scanning is working i dont have device at the moment
im developing an application that constantly checks a particular webpage for changes in the page. im using the webbrowser.documenttext to read changes in the source, its working great. until when i tried to use webbrowser.refresh(), an ugly popup that says. "To display the webpage again, Internet Explorer needs to resend the information you've previously submitted.If you were making a purchase, you should click Cancel to avoid a duplicate transaction. Otherwise, click Retry to display the webpage again."
laterly I've been trying to think of smarter ways to use code my programs. My Uni class's latest assignment involves a Lawn Mowing Caculator. I've designed a form below, but now I'm stumped for where to start on my code for it.
