I want to store a fairly large amount of static data in a class library.I have used a library before that does this, containing info for thousands of items. The person who made the library got that info from a database and somehow stored it in the library such that you could access it in a variety of ways using different methods. (ID, Name, etc)
View 5 RepliesI 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?
View 6 RepliesI'm trying to host some static files for access by an ASP.Net web role and a separate data worker role that are both running on the same deployment (they use a global static interface).
However, I'm unsure how exactly to 'host' them, I've tried using virtual folders via HttpRuntime.AppDomainAppPath, but it only occasionally works in debug mode. The files also don't seem to get packaged into the deployment packages made by VS vis CSPack (though this might be a separate issue, is it possible to fix this too?)
The static files in question are actually WordNet, which I'm using through WordNet.Net, If that makes any difference. I also need the solution to work in both the cloud deployment and the emulator (if possible).
The "named pipe" seems rediculous to pass data between processes (exe's). Is it possible to run a single instance of a VB.NET Class Libary (dll) such that two programs can access the same memory resident dll, thereby passing data via functions and or subs?When I try to make the class library as single instance, the "Enable Application Framework" is greyed out, and thus the option to "Make Application Single Instance" is also greyed out.When I try to call the dll from two processes, I simply just create two instances, so storing data in a module doesn't work
View 2 RepliesI'm creating a bookmark library cause my friend requested but I do not know how to make it so that you can add bookmarks while you are inside the program and have them stay there even if you close it.
View 4 RepliesI'm wondering why I can't create an association from a class to a static class in the class diagram editor of VS. Any reason for this?
View 1 Replieswhat is the Equivalent of a Static class in VB.Net. Is it Modules?And When i used one of the C# to VB.Net conversion tools then the code "Public Static class Class1 " was converted to "Public NotInheritable Class Class1"
View 1 RepliesI've got a shared class (static in C#) which mostly carries some settings data that any class in the application can read and sometimes write. Also there are some static properties which holds some internal states.
Now I want to revert this class to initial stage of it. With all default variables etc. Assume that the user want to reset the current state and start over without restarting the application.
In a singleton model I'd simply renew it with something like this :
Public Sub Reset()
_Instance = New MyClass()
End Sub
However this is not possible in a Shared class. Or should I switch back to Singleton?
I have a C# dll and want to use it in VB.NET. I'm using C# 2008 Express and VB 2008 Express. I have added a reference in a VB project to the C# dll. When I create an instane of a class in the C# dll, it gives the following error messsage: "Type 'RF.RabinFingerprint' has no constructors". My C# dll code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;[code].......
I am trying to convert following code into a VB equivalent so that I can use it with threading my forms and controls.
using
System;
using
System.Collections.Generic;
[code]....
If I have a module in a VB.Net class library, will it's visibility be limited to the assembly? What I'm looking for is the VB.Net equivalent of a C# internal static class.
View 1 RepliesThis questions is for VBers, it's irrelevant in C#.
In VB, when you create a module, all it's fucntions and members are available in the scope without need to type the module name, just like all the VB functions (Rnd, Mid, IIf etc.).
I want to create a module but I should have to explicitly write it's name to access it's members, i.e. it shouldn't be loaded to the scope like a namespace.
Update
For example, I have a Module of extension methods, I don't want all it's members to show up on the scope and in the intellisense.
I want it to be available only by instance.ExtensionMethod().
I have a class library in VB.NET that does a NET-envelope for an USB device driver.There is only one function of that driver that I could not envelope in a traditional class, but I had to put it in a Windows Service as described here:Sharing a class property (field) between applications.The Windows Service works fine, but I have now two projects for my NET-envelope: the one with the class library, the second with the windows service and I do not like the idea to maintain two distinct projects for the same driver.Is it a good practice (or even if possible) to add a windows service class to a normal class library (without creating its own project as described in the vb tutorial)?I know, in any case I should create a separate setup only for the windows service, but in this way I could have together all the classes that envelope my usb device driver in only one project.
View 1 RepliesSuppose we have a class like:
Public Class Question
Private Shared _field as Integer = CrazyIntegersRepository.GetOne()
' Some other useful things go here
End Class
And the method GetOne throws an exception... How can we manage that? Is a good practice to rewrite that into a static constructor? When is the GetOne method going to be executed if we leave it there in the inline _field declaration?
I need a static variable to get a ListItemCollection from a List control (I can do this, but if I don't set it as Shared It's not preserving the values as it should). The thing is that this class is a SharePoint webpart, so I most probably will be using the webpart more than once, and I need this variable to be unique to each webpart, which shared doesn't accomplish.I tried everything you can imagine. I placed a Static variable within a Sub (shared and not shared), I tried it with Properties (also Shared and not shared)...
View 3 RepliesI have a module with generic constants, subs and functions.I would like to be able to use the module in multiple projects in one solution.I also want it to work like the class System.Math, where you do not need to declare and instance of the class before you can reference it.[code]I want to be able to call ClassLibrary1.MyGenerics.Half() just like I can call System.Math.Abs()
View 10 RepliesI hate to see the name of the class used as a string parameter like "FileDownloader" in the code, and I would like to use something like this FileDownloader.Name(), where FileDownloader is name of the class.Only problem is that I can't find out how to do that without instantiating object or creating a static method..Is there a way to get a class name in .net without having the object instance and without creating a static method that returns the name of the class?
View 4 Replieshow to word this, as it is it's complex to understand the concept of the idea. Basically, I'm trying to use an interpreter pattern, based off of the code I used in php. In php the code is:
abstract class Expression {
private static $keycount=0;
private $key;
[code]......
The problem I'm having is that the static variable is blank for each child using it. How can I have it where one child increases the keycount,and ALL of the children have the new keycount variable?
I would like to understand the Pro & Cons in using the commonly used methods via Singleton class against Shared (Static) members of a class in VB.Net. It could be in terms Time, Space complexity or best practices. I have a BankAccount class with methods doing some business logic.
GetBalance()
GetLast5Credits()
GetMiniStatement()
[code].....
I've createda vb.net class library where I've defined a number of small classes... nothing complicated, just working with strings, sending emails, etc.In another project, I reference the class library and I'm seemingly able to create an instance ofone of tclasses - intellisense shows me all of the plic properties, methods, etc... all looks perfect. No compile errors at all, nothing b gumdropsand lollipops.When I run the app I'm working on that references the class library, it fails at the point where I'm creating an instance of the class and gives me a vague exception, "System.TypeLoadException".
View 2 RepliesI'm posting this there is a relationship with my previous post [URL]
I have two projects, namely:
1. Project1 (Windows Application)
2. Project2 (Class Library)
in Project2 there are several classes:
* frmLogin.vb
* frmCustomer.vb
* clsGlobals.vb
in my case, I want to frmLogin.vb and frmCustomer.vb not called in Project1 and I can only call is clsGlobals.vb
Under Visual Basic 2010, I am trying to define a specific instance of a static method that was created as a Java class. I have a vendor supplied dll added in as a reference.[code]...
But, I can't seem to define a specific instance of this method. Using "IntegrationMethod.getIntegrationMode()"always returns a value of zero.
There doesn't appear to be any way to "setIntegrationMode" to a specific value.
The documentatoin for this Class as provided by the vendor are shown below.
When I asked the vendor for assistance, their response was: "
Our javadocs for the IntegrationMethod class show that we provide three predefined instances of the IntegrationMethod class[code]...
i'm working on a code that i want to start creating new classes with but i want to know if there's a more direct way to send the variables used in the form to a new class for storage.
for example i've got this on a form...
Dim ClassID As String
Dim ClassName As String
Dim Grade As String
[Code]....
you know? so what would be my most direct route to get this? how should i start?
I have made a class using New->Class Library. I have 2 constructors, 1 function (that computes length of circle), one subroutine that computes area of circle, and main subroutine.
Public Class Class1
Class Circle
Dim rad As Double
[CODE]...
My problem is when I try to run the program: No errors of syntax.
What I must do? I need to right click in solution explorer add new item->add->class and copy here this code?
After I write the code I chose from the vb menu: Build->Build Solution_name
Before writing the code I choose File->New->and selected class library then save all to save as a project.
Or class library is only a dll file that runs with a windows forms application. (that is added after i write the code for write library).
I'm trying to create a program that will read in a custom file similar to a config/INI file and parse the data and store them into variables of a custom class. Essentially I want to be able to read in line by line, split the line by the space and then store the value into a class object's variable with the same name.
For example, I have a class called body.
Public Class body
Dim height As Double
Dim weight As Double
End Class
there's a lot of dlls i've got one in the Release folder and one in the Debug folder under bin, there seem to be one in the obj folder as well.they all seem to work fine, but which should be the correct one?
View 4 RepliesI have two projects; A and B, where B needs to use some classes that are in project A. Hence, I added B to A's solution, and in B I added a reference to project A.
Is that sensible? Or should I rather put those classes in a class library?
I see that if I further want to open form/program B from a menu option in project A, then A needs a reference to B. Which would not be possible if B already had a reference to A. However if I use the class library for the common classes, then it's ok as B doesn't need the A reference.
Does this sound logical? It would be nice to know what are typical reasons for putting projects in the same solution, and if it's advised to use libraries aggressively to refactor common code between two projects, even if it's just a couple of classes.. Yet I've never made my own library, so a bit unsure on when to use it.
I'm merging two of my projects that can share a lot of the same classes into one solution with two web applications and a shared class library.
I've literally just dumped all the classes into the class library project and as expected I've got a ton of errors to fix. My main problem at the moment is the connection string. Currently I have this (which is obviously not going to work):
''' <summary>
''' Initialise the data access layer by loading the database connection string from the Web.Config file
[Code].....
Can I create my own class library, possibly to be sold commercially, in VB.NET?
View 2 RepliesI'm in the midst of developing a class library DLL for a third party application. On my machine, the developers machine, things are going along smoothly. I can compile/build and my DLL is loaded, and thus works as expected.
I've been copying the contents of the Release directory from C:Solutions...Release to C:ProgramDirectory. I realize now that my DLL is loaded into memory from the Release folder, and not the folder I copied it to.The point being of course, I want to distribute this third-party add-in to my users. And sure enough when I try that, presumably the DLL isn't loaded into memory and thus not available to the user, like it is on my machine.
I tried the first obvious thing and registering the DLL on the user's machine, but that failed."The module "..." was loaded but the entry-point DLLRegisterServer was not found." It's apparent I am missing some key step or caveat when it comes to developing this class library.