Questions tagged [vb.net]

Visual Basic .NET is a .NET oriented-object implementation and evolution of Visual Basic developed by Microsoft.

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1answer
129 views

How should I name output variables that are the same as the function?

What are some conventions for naming a variable in cases where the name of the variable ought to be identical to the name of the function? I'm using VB.Net. I often have this problem when writing ...
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3answers
368 views

What is difference between assigning to auto-Implemented properties VS their backing fields within the class

Before I started using auto-implemented properties, I was taught that when assigning properties in the constructor (because of the potential of making a property read only), I should assign directly ...
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5answers
6k views

When conversion from Integer to Single may lose precision

I was reading an article from Microsoft regarding Widening Conversions and Option Strict On when I got to the part The following conversions may lose precision: Integer to Single Long ...
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4answers
4k views

Obtain reference to Parent object during instantiation

I have a situation where a custom class is a property of another class. What I need to be able to do, if it is possible at all, is obtain a reverse to the "parent" class (ie the the class that holds ...
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3answers
105 views

Duplicated formula in front and back end

I'm struggling with logic that is duplicated in the front end code and the database. Right now, I just put a comment. Here is a small example (the current system has a lot of much more complicated ...
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2answers
1k views

How to avoid using service location when using dependency injection? [closed]

I am trying to use dependency injection in a WPF application, and I really can't figure how to avoid using service location, which is considered to be an anti-pattern in many articles. I am using the ...
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1answer
4k views

VB.NET - Serial Key Generating (Encryption, Hashing, Encoding?) Algorithm

I am trying to create a basic licensing system where I take a unique ID from the client computer, and I get this Hexadecimal string (hyphens removed e.g. "84-18-CE-...."): "...
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2answers
2k views

How do I handle having so many SQL queries?

I have an MVC3 project that uses SQL Server. I use data from the SQL database all the time and I often find that I'm reusing/duplicating some SQL queries. I thought I'd solve this problem by creating ...
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7answers
49k views

string.format with variables vs inline variables

What are the pros/cons (if any) to using string output; int i = 10; output = string.Format("the int is {0}", i); versus string output; int i = 10; output = "the int is " + i; I have always used ...
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0answers
183 views

Integration Testing a dynamic backend

Our company creates financial software that integrates into a banking system backend. We're running into a lot of problems making changes to it without seemingly impacting another customer or another ...
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2answers
371 views

Is it OK to have a property of type COM object

I am developing a COM addin for Microsoft Excel, using VB.Net. I wrote a class to represent a worksheet that contains certain elements. Let's say for example it has a ListObject. I create a property ...
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1answer
311 views

Round robin, balanced home/away, multiple locations with multi-team options

This is my first question on this forum, have tried to exhaust every possible research option I could think of or find. Actually this is the first time I've posted for help with this anywhere, so ...
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0answers
858 views

Passive View (MVP design pattern) with multiple Views

Coming up to speed on the MVP design pattern and I have a gap in my understanding. The consensus seems to be to design a 1:1 relationship between Presenter and View. This makes sense -- but how would ...
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5answers
2k views

Convert a team from VB.Net to C#.Net

I am currently running a team of 5 VB.Net developers and have decided to make a switch to C#. The team builds and maintains around 20 different applications that run our whole platform, so the code-...
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3answers
30k views

Should we include Nuget PACKAGE folder in version control?

I would like to know In C# or VB.NET project should we include the PACKAGE folder (nugget package folder that is created to the root of my project that contain the nupkg files and other content) to ...
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1answer
52 views

How to handle events in extended classes?

When one extends a class, how is the proper way of setting code to be executed upon some event of the base class? Should one handle the base class event this way: Public Class Class2 Inherits ...
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1answer
487 views

How should I load and change settings?

Please forgive me if my thought process is incorrect. I'm only a programmer in my spare time, with no formal training. I'm using VB.net to create a very basic application, but some settings need to ...
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3answers
1k views

Is a singleton with an update method and software state verification a valid pattern?

Stack overflow suggested that this question my be better suited here. I normally work in c#, but I'm working in a vb.net net application currently. So feel free to respond with vb.Net or c#... ...
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1answer
561 views

How should I protect the data sent over a tcp socket?

I have two applications. The client application is written in .NET and the server application is written in native C++. I am using TCP sockets for data communication between the two applications. ...
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3answers
7k views

Best way to query data from database and then modify it

I'm working on a software using VB.Net which retrieves string packets through a TCP socket. The problem is it receives hundreds of packets per second. For each incoming packet the software should ...
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2answers
179 views

Visual Basic Writing to File with Numbered Lines

This is more of a design/user experience kind of question, so if it belongs somewhere else please let me know. I have a program that has multiple PictureBoxes: PictureBox1 PictureBox2 . . ...
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4answers
616 views

How do I elegantly store tabular data in code?

Let's say I want to store date which cannot be changed by the user in code. For example, my application supports ten types of reports, and I want to store metadata about it. Usually, I'd use a ...
45
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7answers
129k views

.NET Properties - Use Private Set or ReadOnly Property?

In what situation should I use a Private Set on a property versus making it a ReadOnly property? Take into consideration the two very simplistic examples below. First example: Public Class Person ...
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1answer
59 views

Encapsulate common application libraries into a single library project

My company is planning to integrate 3 in-house libraries into all of our applications (with possibly more on the way), and I'm wondering what the best way to go about this would be. My initial ...
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4answers
563 views

Do I really need to stop the timers that do nothing?

I have a sample code here: Dim a As Boolean = False Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick If a = True Then Console.WriteLine("Example of a task ...
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1answer
2k views

Standard way to call virtual method

So recently I was working on a project where I had a base class that provided some common functionality. It had several virtual (overridable in vb) functions. I noticed that some of these methods ...
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1answer
522 views

How to map references in different VB.Net solutions

I just come to a small company. There are more than 500 solutions in different VS.Net versions and even VB 6.0 projects. They share several dll. Is there a way to map relation between each program? ...
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2answers
2k views

Iterate over Collection while removing elements from it

I am iterating over a collection and want to delete some entries of it. Example: For i = 0 To Node.Nodes.Count If i >= args.TotalNumberOfNodes Then Node.Nodes.RemoveAt(i) End If ...
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2answers
596 views

C#/VB struct – how to avoid case with zero default values, which is considered invalid for given structure?

How to implement some constrained .NET struct/structure (let's say LimitedString), where its state with default values (set by CLR to technical defaults, i.e. nulls, zeros, etc.) should be prohibited ...
3
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1answer
832 views

Can an object contain a property that is another object?

I am new in the object oriented world. I am interested on learn the foundations of object oriented programming independently of any language. But for the moment I am doing the implementation on VB.NET....
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1answer
612 views

What is the best approach to storing a multi-dimensional array with unknown bounds?

I'm trying to store content scraped from several lyric and chord websites into separate variables into either a multi-dimensional array, or into separate string arrays, but I've been stuck trying some ...
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4answers
399 views

Alternative way to expose you're returning Nothing in a method

I'm kind of in an impasse here. Lets say I have module A which exposes some methods returning objets and module B that uses said methods from Module A. Module A will have situations when it will have ...
3
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1answer
332 views

“Best Practices” when designing large applications with multiple functions

A little background first. I have been tasked with rewriting our gun software into VB.Net (converting the code from BBJ). This software incorporates many different inventory management functions, such ...
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6answers
878 views

Methods of debugging code (Nightmare situation)

I am frequently tasked with debugging an application at my job. It is a BI Application that we deploy to businesses, which includes a test environment, and a production environment. I am wondering if ...
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1answer
330 views

How can regular expression be ambiguous?

I am recoqnizing this pattern <.*> From string <a href="hello world">Hi Baby</a> Now, there are several match <a href="hello world"> is a match <a href="hello world"&...
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2answers
1k views

Is it acceptable to define a “module” and “class” within a single .VB element?

Experiment: I have found it is possible to define both a "Module" (Namespace?) and a "Class" (Namespace?) within a single .Vb element (Module??). You can try this at home: Create a new Console ...
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1answer
275 views

OPTION STRICT set to off [closed]

I am working on an application with over one million lines of code. OPTION STRICT is set to off!. I want to set it to ON during the next work iteration. I believe the only reason OPTION STRICT ...
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2answers
2k views

Refactoring method with nested loops and 6 variables [duplicate]

I have a method which implements a small section of a (complex) algorithm. This algorithm has taken me several weeks to perfect and is by far the fastest method I can find. The method in question has ...
2
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1answer
280 views

Exception to the 'Nested types should not be visible' rule?

Is the following an acceptable breach of the 'Nested types should not be visible' (Microsoft .NET code analysis CA1034) rule? I have a have a class, let's call it 'TandAOLL', this is tree and an ...
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7answers
4k views

Is there something better than a StringBuilder for big blocks of SQL in the code

I'm just tired of making a big SQL statement, test it, and then paste the SQL into the code and adding all the sqlstmt.append(" at the beginning and the ") at the end. It's 2011, isn't there a better ...
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0answers
73 views

Metrics for when to use a hash value?

I am working on a project that requires a series of flat files. I will be doing some data checking against simple date like: ID;StatusCode So a typical file might be like: 13993;R 38293;A 19349;I ...
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2answers
1k views

Is CType() ever the preferred option?

Is there any time CType() is the proper option over other methods? I did plenty of thinking on this myself, but wanted to put the question in hopes there would be answer to my question so I can put ...
2
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1answer
117 views

Parsing XML to two separate (WInForm) controls

I've spent a great deal of time researching a solution to my issue with very little success. I'm rather new with .NET and vb.net so I apologize if this seems simple to anyone else. I had a first ...
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16answers
1k views

Should a c# dev switch to VB.net when the team language base is mixed?

I recently joined a new development team where the language preferences are mixed on the .net platform. Dev 1: Knows VB.net, does not know c# Dev 2: Knows VB.net, does not know c# Dev 3: Knows c# and ...
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2answers
2k views

Handling exceptions in a loop without breaking the loop (try to process all members)

Scenario: I have a loop that iterates over an Array of COM objects and does some work using them. My fear, working with COM objects, is that some exception will creep up (possibly on another user'...
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2answers
210 views

Should client side have a log? [closed]

The client side of my application is written in VB.Net, it accesses a java server. Server logs every request that was made by client, client shows every exception to the user (with an option to send ...
2
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2answers
600 views

When to turn off Option Strict? Or how to deal with inheritance of COM using Option Strict?

I'm trying develop an add-in for an application using it's API and I have Option Strict turned on. Trying to work with these COM objects is causing multiple compile issues saying Option Strict On ...
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3answers
1k views

Is it bad practice to register assemblies in the GAC?

I have moved a few assemblies to the Global Assembly Cache because they are used by multiple applications i.e. a VB.NET app and an ASP.NET app. I remember a few years ago when I started in my current ...
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3answers
3k views

Saving to Registry vs. CustomFile [closed]

I've been using the usual My.Settings... method when it came to saving settings for my program but I was just wondering, If I wanted to save program settings into the Registry and load those settings, ...
0
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3answers
642 views

Understanding VB.NET variable scope

What's the difference between this code snippet: Sub Test() Dim i as Integer = 0 Dim q as String = "" While i<10 q=String.Format("Some text {0}", i) Console.WriteLn(q) i=i+1 ...