I see everyone is using the Shell command without any problem, but it doesn't work for me, it says it's not declared like it doesn't exist. I'm working in Visual Studio using VB.NET.
Interaction.Shell is in the Microsoft.VisualBasic namespace, which should automatically be imported for Visual Basic projects.
If it isn't in yours, you can fix that in the project properties (Tab "References") or manually add Imports Microsoft.VisualBasic at the top of the code file.
Another possible reason is that Interaction.Shell is not included in .NET Core versions prior to 5. In that case, use a "classic" .NET Framework project or .NET 5 or higher instead. (Credit to Hans Passant in the comments.)
I have recreated the app, without change anything and now it works... In any case, thank you to everybody for the support.
Related
I need to read\write tga files from vb,
I found TargaImage.dll, nice lib but it allows only read tga.
I found FreeImage, tryed to import it in vb, but it says:
FreeImage.dll could not be added. Please make sure that the file is accessible, and that it is a valid assembly or COM component.
I think I have to use , but absolutly dont know anything.
help plz:)
From looking at the way the distribution works, you have two options:
First, you could call the functions in the DLL directly using <DllImport> attributes. This is going to require a lot of learning of how to make calls to unmanaged DLLs, passing the right values, etc. Which is why I suggest the second option.
The second option is, you can use the .NET Wrapper project that is included in the distribution. If you're using a version of Visual Studio that supports multiple programming languages, just add the wrapper project to your solution and reference the wrapper project from the project that needs to use it.
If you're using Visual Studio Express, you won't be able to add a C# project to a VB solution. I'd suggest downloading C# Express, compiling the wrapper project, and then adding the compiled DLL to your VB.Net project.
I need to import java.util.zip for my project to zip and unzip chosen files/folders in vb.net. But when i say imports java.util.zip, i get the error "Namespace cannot be found". I went in the add reference and checked in both .net and COM components bout found nothing for java.
What dll would i need to make this work?
thanks
If you need zip/unzip using a pure managed code library, you should to take a look at SharpZipLib
You might be talking about some ancient J# library, in which case you'll have to reference vjslib.dll
Don't do that though.
Use a sane,small Zip library, such as DotNetZip
I'm migrating my solutions from .NET 2.0 to .NET 4.0. I open the solution file in VS 2010 and follow migration wizard.
While building the solution and comparing the changes with the server copy (since solution is under source control VSTS), I surprisingly found that
1) the public classes were changed to 'internal' and
2) the 'public static' properties were changed to 'internal static'
It gave me problem because the output assembly is referred in other projects.
Can someone explain why does it happen? Also, are there any other such changes taking place behind the scene? Or Am I doing something wrong ?
(Note: I have ReSharper 5.1 installed but I think it has no place in this case.)
ReSharper may have given the suggestion to make methods static for those methods which are not using any instance variable or method within it. This is what I have observed.
Similarly, if the methods are not accessed from any other project/assembly, it may give you suggestion to make them internal.
Does VB.NET have anything similar to Java's JDK source code? When I used to work in Eclipse, I could right click and view the generated code, or "look under-the-hood" so to speak. I found this feature very helpful in understanding what was happening behind the scenes, and it helped me to write better, more simplified code.
I have so far been working with Visual Studio 2010's Object Browser, and I have also been looking at the generated designer files, but these often do not drill down far enough.
The best program to do this is called .NET Reflector and you can download it from here: http://www.red-gate.com/products/reflector/
It lets you see executables and DLL's under the hood
ScottGu has an old blog post about this:
http://weblogs.asp.net/scottgu/archive/2008/01/16/net-framework-library-source-code-now-available.aspx
You can also use the .NET Reflector to peek into the code for any .NET dll, but keep in mind it won't look like the code in Visual Studio :)
http://www.red-gate.com/products/reflector/
I have an ASP.NET VB.NET web project that references a VB.NET class library.
I add a new property to a class in the class library, then, from the web app, I expect to be able to use it immediately w/o errors and with full intellisense.
It used to work in 2008.
When I compile the class library, it becomes available but not until.
Was this nice feature taken away, perhaps in the interest of speed?
What's likely happening here is that the Class Library and ASP.Net applications are targeting different versions of the framework. If they are using incompatible versions of the framework then VB.Net will treat it as a file reference instead of a project reference and would give you the behavior you're seeing.
Right click on the project, select the Appilication Tab and make sure that both have the same value selected for Target Framework. That should fix the problem.
Visual Studio 2010 will officially launch on April 12, 2010. I'd say there's a good chance that problem will be fixed in it. Go see.
EDIT: corrected the date.