Framework 3.5 And 2.0 Difficulties - How To Accomplish
Nov 5, 2010
I have made an application which involves the .NET Chart control by Microsoft. My difficulty here is that I'm targeting my applications for lower specs computers, i.e. with fresh installed Windows XP and with .NET Framework 2.0 installed on them. Whereas the Chart control requires .NET 3.5 to be installed on the system.
I was thinking, is it possible that I make my app that runs on the system which has .NET 2.0 on it, and in the part where my app shows the Chart, it simply shows a message that "please install .NET 3.5 in order to view the trend charts". And when the user installs the .NET 3.5, my app detects it and enables the chart control.
Problem is that if I want my app to run on 2.0 framework, I have to set the target framework in compile options to 2.0. But that way I cannot put the Chart control on my WinForm because it requires at least 3.5 framework to be set in the compile options.If I set the 3.5 as target framework, then obviously it wont run on 2.0 system.
Can some kind of conditional coding be done that only runs if the system is equipped with 3.5 framework. I dont want to create two separate applications for 3.5 with chart, and 2.0 without chart.
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Apr 6, 2011
I have the following code:
Private Sub btnReserve_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnReserve.Click
Using dbContext As pbu_housingEntities = New pbu_housingEntities
[Code].....
executes it always get 0, because the row has not yet been created in the database. I can just move this last bit of code out into its own Context, but is there a better way to do this?
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Feb 14, 2011
I have problem on deploying applications to workstations that uses crystal reports as its functionality. My Platform is Visual Basic 2008 with .NET 4.0 Framework combined with MySQL Database and Crystal Report integrated to the VB 2008 IDE. Here are the problems:
1. When the user attempts to generate reports, he is prompted to enter his username and password. This problem is encountered in MySQL database.
2. The application uses a text box with passwordchar property to mask the password. On some computers, it works but on others it is not able to mask it.
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Oct 1, 2010
i have some difficulties with a Regular Expression.I need to know if a certain string match a specific pattern.Only letter and number (a-z or 0-9) and must begin with a letter. No space allowed either.
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Nov 23, 2011
I'm trying to use a generic list without knowing the type when loading the page. I have a typePropertyCollection which inherits from List(Of PropertyData). The usercontrol that uses this collection doesn't know what type of data is used (which objects). So when the page is loaded, I pass along the type to the usercontrol using a dependencyproperty. This type ends up in this method:
Private Shared Sub OnObjectTypeChanged(ByVal obj As DependencyObject, ByVal args As DependencyPropertyChangedEventArgs)
Dim objectType As Type = TryCast(args.NewValue, Type)
[code].....
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Jan 27, 2010
Surprised this question has not been asked yet here, but here goes: Serialization in VB.NET is a bit of a pain. If you use the standard Serializable() attribute, and attempt to serialize a class that has events which are attached to handlers, it will attempt to serialize the handlers as well. Coming from a C# background I am not used to dealing with this problem, and the best solution I can find is using a class off of CodeProject.
[Code]...
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Jun 9, 2012
I am trying to accomplish an Aero Wizard in VB.Net, shown here: Features in need include: Extended glass frameGlowing textRemoving original caption bar title and iconBack button
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Jan 22, 2011
In some of my TextBoxes and editable ComboBoxes, I want to make sure that the end-user can only type characters and whitespace but not to allow whitespace without characters existing too.
I have started to write a public sub and would like to know the best way of accomplishing this scenario check. This is what I have so far. Your ideas are welcome.
[Code]...
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Aug 10, 2009
Is there any way with vb.net of accomplishing MMS audio streaming?
Also, i read somewhere else within SO, that MMS streaming is no more supported by Microsoft. Is that true?
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Oct 9, 2010
What I'm trying to accomplish is for the user to select a menu item(New Tester) from the MainForm(only used for menu)to open the NewTesterForm and enter a rating from 1 to 10( 10 being the best) for two different drinks. When the user clicks the ok button on the NewTesterForm it adds the new rating to the totals. It keeps adding the rating totals until a user clicks the cancel button which returns to the MainForm. When the user clicks on the MainForm menu item Summary, The SummaryForm opens and displays:
-average rating for each drink which drink had a higher rating(the name of the drink)the total number of testers
[Code]...
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Jul 4, 2009
the goal i want to accomplish is when the user presses a button, "moneyamount" increases by a random number generated. the problem i am having is that after the action is finished the script does not seem to save the new value and always starts at zero. here is the script:
Private Sub button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dojob1button.Click
Dim moneyamount As Integer = moneyamount + Int(Rnd() * 10)
moneylabel.Text = "$" & moneyamount
End Sub
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May 21, 2010
I am work on VB.net 2003 Framework 1.1 for last 3.5 years in windows Application.We are currently migrating to VB.net 2008 framework 3.5, but i don't know about the features which related to ADO.net and which is important to performance. I know linq to SQL but our architecture is made in .net 2003 so we should follow this.Any features which is very important to enhance the performance?
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Feb 2, 2011
I have a solution that I wish to upgrade from Vb.net framework 1.1 to framework 4.0. The solution consists of a number of projects, all but one of which compile to dll's. The master project compiles to a executable which provides a menuing system which dynamically loads the dll's and connects to entry points.
The projects contain normal classes, numbers of forms and also controls, which are either usercontrols or are inherited extensions of standard windows controls.There are a number of third party components (eg reporting and grid controls from Component One, Ribbon control from DevExpress etc).
[Code]...
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Apr 7, 2009
How come software created in an older framework version won't run on a newer framework version? Actually whenever i try to run some old specific software having .net 3.5 framework on my PC they show they needs .net framwork 1.1 . What a bad thing?My newer version of Photoshop ans Ms office open all lower version files.
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Nov 24, 2011
I work for a small company and we are planning to build our own framework using .net . For example if a dropdown is placed in the form and set the custom property to Users, then the users list from db from has to populate. The developer will drag and drop the custom control and set the connection string in config file. Other things are to be managed by the framework.
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May 13, 2010
c# - Are Microsoft Entity Framework and ADO.NET Entity Framework (.edmx) the same?
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Jun 2, 2009
if an app created in Visual Basic 2008 can be installed on a machine that has the 2.0 framework installed?Are the frameworks backwardly compatible? I'm basically thinking about a no frills basic type of app with no calls that would make a conflict on the lower framework.
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Dec 28, 2009
is it possible after compiling the exe to make it a standalone exe that does not need the .net framework to be installed on the clients machine, because some clients have IT policies that forbid them to make installations. most of my applications are Ms access + vb.net so is there a way to give the customer the db with exe & no other installation steps are needed.
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Jan 23, 2010
is there wpf and wcf for the .net framework v2.0(visual studio 2005)
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Jun 4, 2011
My problem is simple I have my application which was perfectly executing under framework 2.0, but recently I upgraded my code to add few lines.
ServicePointManager.DnsRefreshTimeout = 500
ServicePointManager.DefaultConnectionLimit = 100
ServicePointManager.EnableDnsRoundRobin = False
ServicePointManager.MaxServicePointIdleTime = 1000
ServicePointManager.SetTcpKeepAlive(False, 500, 500)
Now when I comment these, the application is executed flawlessly, but when included program requires Framework 2.0 SP2 upgrade, I searched MSDN for this but looks like this is available from Framework 1.1
I dont want my users to upgrage to SP2 for such minor things but cant also remove this from my code, Is there an alternate to achieve similar ServicePointManager settings without a Framework Upgrade?
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Feb 20, 2009
When I create a new project in VB Express, I get the following 2 errors:
Warning1Value cannot be null.Parameter name: serviceInstance00
Error2.NET Framework 2.0 update not found. The win32manifest will not be embedded.WindowsApplication1
How can I fix this? Windows Vista Home Basic
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Feb 15, 2011
I am on windows vista 32bit.I installed .NET4 and my projects will not open.I had to uninstall and go back to 3.5 w/ SP1.Is .NET4 not yet "complete" and compatible with VisualSutdio 2010 Ultimate?
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Mar 25, 2011
I know you from microsoft but can you stopto all those old threads that related to flash and browser because you are pushing new threads to the back. If you want to post something that can benefit the forum members, just post in
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Nov 27, 2009
I want to attach .net framework 2.0 file in wix.how can i?so whenever client want to install the msi then it will install the framework directly.so how can i bind the framework in msi package?
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Oct 3, 2010
Basically, i am trying to determin if an application made for 1.x will run on a computer with just one copy of the .NET framework installed which is a higher version than what i am targetting, ie: it only has one copy of .NET 2.0, or 3.0, or 3.5 or 4.0 - has one copy of either of these and thats it, the hypothetical computer would not have 1.0 or 1.1 installed.
[Code]...
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Oct 30, 2011
I create a project with DB Ms access on .NET Framework3.5. and I make it exe. this application doesn't work on XP, so I Downloaded NET Framework3.5 to work.My question is: can I change the .NET Framework from 3.5 to 2.0 after create my project.
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Jan 10, 2011
lot of computer users don't have Framework 4.0 and aren't interested in installing it. I can build my programs in 2005 Express but I have Framework 4.0, and if the computer user doesn't have 4.0 the user gets an error. Is there any way to specify that framework 1.5 be used for the build? (I'm assuming I could find 1.5 somewhere.)
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Jul 10, 2009
I have just completed an app, but i dont want to inculde the redistributable framework... What .dll(s) are required with the apps(so no framework is required)
or can i just integrate framework and my app into 1 setup.exe.
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Jan 20, 2009
My simple application runs great on all of my P2 700 mhz 256 or higher PC's.Using dotnet 2.0 and XP.But weird things happen on a Celeron 400mhz, 256mb with XP and dotnet 2.0
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Jun 24, 2010
I have a desktop application which interacts with web server and does some work. I dont have any installer for this app and I don't want to have one. Its just executes when it gets clicked.Now, what I want is, I want the user to run the app and the app will check if he has .net framework installed in his machine or not and will start downloading and installing the .net framework automatically.
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