I have a big project in vb.net with over a 400 forms and datasets and 100 reports. I deploy it using clickatonce. I want to split it into modules so each user will use the core project plus the modules his department needs, so when I make an update to a module he will take only this update and not the whole project as I am doing now.
View 3 RepliesYesterday I opened Visual Studio (2008 v 9.0.30729.1) and all the winform classes in my project display with class module icons with the little 'VB', instead of form module icons with the little form icon!
When I double click on a form module, the form designer doesn't open, just the code module.
When I run the project, it runs fine. There are no errors. The project builds fine.
I did Project --> show all files, and I can see the designer and resx files below the form module which doesn't look or act like a form module.
I can't open my forms to design them!
I'm working on a project that is based on modules and plug-ins. Any of these modules might alter some part of a database in various ways. One module might write or edit one table, while another module might write or edit other tables.
The modules all communicate via events raised on a common object. Therefore, when a person using module A enters a certain change that would edit data managed by module A, the module raises a Proposed Edit event such that all other modules that might be affected by the edit will have a chance to accept or reject the edit. If no module rejects the edit, then module A makes its changes and raises an Edit event, at which time all the other modules make any changes they need to make.
That's the basic pattern, but there's a problem. If I don't share a transaction during the edit, then module A can successfully edit their tables, but module B might fail to edit their table. In some cases, the failure by B should rollback the changes made by A. Therefore, it would make sense for module A to share an open transaction for all the other modules to use while making their changes, and this gets either committed or rolled back, depending on whether everyone was successful, or not.
The problem with that design is that a person could write a new module C that had a bug which caused it to fail to update correctly. That would cause it to signal that the transaction failed, such that all the other modules, which had been working up to that point, would no longer work because this new module kept canceling the transactions. In other words, the modularity of the program has now been lost. Every module depends entirely on every other module that even cares about its data.
In most cases, what would be lost if certain modules failed would be minor, whereas what would be lost if other modules failed would be catastrophic, as there would be no way to re-create the lost data with any kind of ease.As long as this explanation is, it may not be sufficient. At least it might start a discussion. Do the actions of all the modules act in the same transaction, or should they be left to succeed or fail on their own?
I have a project with several forms and modules. The problem which I am mentioning revolves around 3 items : 2 forms (e.g. form1 & form2) and a module. (Using VB.NET 2008, .net 3.5)
Now I have a structure declared in a module. I have a variable of that in form1 and form2.
'Module Code
Structure MScanner
Dim Indicator() As MuseIndStru
Dim FName As String
[CODE]..............
Now what is happening is, I am passing structure variable MScan (Form1) to Form2 (see function of form2 InitFilter) byvalue. Then in form2 I am changing value of a copy of the structure (see variable MS being changed in a private sub). But then when I close form2, form1's variable of MScan also get the value of variable MS (declared in form2).
I don't understand as this is not suppose to happen. I have reloaded my project as well but this problem is there. Why is my form1's variable value MScan being changed by form2.
I have a small project that contains three forms. The problem is that one of the forms is on a USB flash memory device(by accident)...the project works with USB flash memory device connected. I want to move the form from flash into the project on c: drive. However i think the project file (?) may keep the original path to the form and it still looks for it. The form in question has an icon which contains an arrow (is this indicating its else where?)
View 1 RepliesI am trying to split a long string based on an array of words. For Example:Words: trying, long, array Sentence: "I am trying to split a long string based on an array of words."Resulting string array:Multiple instances of the same word is likely, so having two instances of trying cause a split, or of array, will probably happen.
View 5 RepliesI would like to create a split container with a three way split. The first split is a vertical split. The second is creating a horizontal split within panel2 of the first split container. panel1 will hold a treeview control the other two panels will hold listview controls
I think this question has been asked already in a couple different ways and I've reviewed those posts and I've tried to do what was suggested but it doesn't seem to work for me. I've tried to place a second split container inside panel2 of the first split containter. This gave me what appeared to be a three way vertical split.
using bas files in visual basic 6 because I could write functions or subs that I would just easily use over and over rather than keep rewriting code. Do these work in the same way in .net? If anyone has any good info on modules like how to start writing functions and subs. Assuming of course that they work like vb6 bas files. If I were to make this sub a function how would I do this and I am assuming the benefit of this specific example would be a Boolean to check if if saved the text file or not?
Code:
Public Sub SaveList(ByVal List As ListBox, ByVal filename As String)
Dim i As Integer
Dim w As IO.StreamWriter
[code]....
During the design of a new application I was wondering if using a module with properties is considered to be a bad practice. Some example code:
Module modSettings
public property Setting1 as string
public property DatabaseObject as IDatabaseObject
End Module
The code above is just an example to emphasize my question. In the past, this structure was used a lot in VB6. In the past I used it as well in my .NET projects.
But nowadays with buzzwords like Dependency Injection, Testability and Separation of Concerns the above structure smells bad. I can't really describe why, but it just feels wrong. I must admit I'm not very familiar with the keywords above, yet.So I'm wondering whether the above code really is a bad practice. If so, what would you use a Module for?
What advantage is there, if any, to using Modules rather than classes in VB? How do they differ, and what advantages/disadvantages are there in using modules? In VB or VB.NET, I use both.
View 3 RepliesI created a module named Sample, in it i made a Public Sub called Sub. But how do i do to add something "behind sub", so i can write like this:
Sample.Sub.alternative1
Sample.Sub.alternative2
etc.
I have finished creating the code for my client/server application although both parts currently execute modules/in console(this was for testing purposes).I am now looking at making both parts of the program completely invisible (they will eventually be executed as a Windows service upon startup). How do i go about this? Does the code need to be copied in to a "Windows Service" project, or is there a way I can hide both of the modules upon execution?
View 5 RepliesI'm using Visual Studio 2010 and coding in VB.NET.
My problem is that I've collected all the modules I've written and intend to reuse and placed them in a separate folder. When I want to add a module from the above folder to any given project, it takes a copy of the module and places in the project's source code folder, instead of referencing the module in the folder containing all the other modules.
Is it possible to include a module in my project and leave it in the folder with all the other modules, so that when I improve upon a module, it'll affect all the projects that uses/references that module. Instead of me having to manually copy the new module to all the projects that uses/references the module. Right now I have multiple instances of the exact same module that i need to update manually when I improve code or add functionality?
Im writing a application in visual basic to tell the user about their pc.
All this is in a module
Imports Microsoft.VisualBasic.Devices
Imports System.Management
Imports System.Net
Imports System.IO
[Code]...
The problem I am having is that if one of the things in the module fails such as if the users graphics card does not have any onboard memory then it will fail.This is causing everything else to fail aswell.I am very new to visual basic so ifyou could please excuse me if I have made any stupidly obvious errors and any suggestions are welcome
I have been brought onto a project where a large amount of code has been written. Most of the code is appearing in the MainWindow.xaml.vb file (yes, this is a wpf project but I think the question is appropriate for this forum). The folks who developed the previous versions in Visual Basic 6 told me that they organized their code by using Modules. I was not aware of this practice and I have actually never even used modules. Can I use modules in this way so that I can logically group different areas of functionality within the application? Or is there a more preferred method?
View 2 RepliesI am fresher in vb.net but I need some samples on structure which contains fields,method,property and events and if some one help me regarding private,freind, protected freind type class etc. In addition to that I know how to create class and modules but i don't know where I create structure and how etc.
View 1 RepliesI have read many many forums regarding the error message "No symbols have been loaded. The breakpoint will not be hit." I had this error message come up a while ago, so I opened a previous version of my project, and copied the newest version of the code I am working on into that project. Then when I debugged, everything worked fine...for a while. Then I got the error message back, so I did the same thing again, and who would have guessed the error message returned, out of the blue. I am working on the program and it works fine, then suddenly one time when I try to debug with a breakpoint I get that message again. So I did some more research and I found a post that recommended looking at the Modules window while debugging (under debug > windows > modules). And in this window under my project, it said "Cannot find or open the PDB file". However, I compared this to the previous version of the program, that works fine, and I noticed that under Path, for my project, the path that I see is not the path where my project is located. So what I am asking is can someone please tell me how to change that path to the correct path where my files are actually located? I believe that if the path is correct, it will find and load the symbols.
View 1 RepliesI have learned that if I want my crystal reports to work on the client machines when they install my program, I have to include some merge modules. I have VB .Net 2003 and Crystal Reports 10. The merge modules that are included with VS Studio .Net 2003 are not included in the program software I have. Is it possible to download these merge modules somewhere else and use them with my software? If so, can someone give me a link on where to get them?
View 16 RepliesI'm finishing up a remote inventory service. Getting the total memory is simple. But, is there any way to detect how many memory modules a computer has and how many MB/GB each is?
View 2 RepliesI have a Module in VB.NET called Math.vb and in that module, I created a Function that displays returns the percentage of one number to another. I have a Sub that calls the Function and I call the Sub from my Form1 class. Is there an advantage/disadvantage to putting the function in the class or the module?
View 5 RepliesI have 2 modules. Each contains a Sub with the same name. See below:
Module moduleA
Public Sub f(ByVal arg1 As myType)
Console.WriteLine("module A")
End Sub
End Module
Module moduleB
Public Sub f(ByVal arg1 As myType, ByVal arg2 As Boolean)
Console.WriteLine("module B")
End Sub
End Module
But the compiler complains that there's ambiguity between moduleA and moduleB. I have totally different signatures. However, if I put the 2 methods into the same module, there's no ambiguity at all.
I am doing a VB.NET course, there is a question in one of my assignments - "How many modules can you have in one program?" This seems like something that should be easy to find, but I have not been able to find it anywhere.Can anyone direct me to a resource that would have this? My initial thought is unlimited, although in practical terms, if you have an excess number of modules, then you probably need to re-think your workflows.
View 3 Repliesi have a public module un an application1 , how can i get the module in application2 ?
View 2 RepliesI am not a program designer by any means but I would really like to start getting a better grasp of how to do it and a better understanding of the .NET languages in general (VB, C#). I was reading a book by Wrox - Professional Visual Basic 2008. In it I believed it mentioned that Modules are slowly going out of existence. I can see why most coding would go into a class object but I would assume modules would always be necessary to at least keep the code clean.
Also, I have been searching for a good source on software design but I can't seem to find any recent books published. I might be searching in the wrong places but I would really like to get my hands on one.
Is it ok to use some classes and modules inside a single VB file ?
At present, I used to create them in separate files by choosing Project menu --> Add Class/Module
I was thinking about combing them into one file. Is there any merit or demerit on this approach ?
I have a frm_Main, which starts a thread. The thread then goes and calls a module, which has a thread.sleep() in it. This causes the mouse to freeze up while it sleeps, despite being called by the child thread. I thought this would have be on the thread time-slice? However it is causing my form to freeze for the sleep duration.
[Code]...
i am developing a software on which 3 junior programmers are also working. there are some modules that i dont want to share with junior programmers. but some function in theses modules can be used by them. is it possible to hide modules from junior programmers.
View 4 RepliesHow can i import modules from other projects
or else i would like to store important functions in modules of any one project and import the codecs into any of my project instead of rewriting
I'm new to programming. I'm using Visual Studio 2010. I'm taking into two introduction classes, VB and C# with .Net. I have seen the enemy and he is me. I hope that someone can please help me with my two errors.
I do not know how I created My.CopyOfMySettingsProperty but I do know they were created when I was trying to create a project by combining my previous four projects.Listed are the two errors from my error list window that I need to correct along with my offending code:
Error 1 'Settings' is ambiguous between declarations in Modules 'Assign5Multi.My.MySettingsProperty' and 'Assign5Multi.My.CopyOfMySettingsProperty'. F:ProjectsVBAVBAssignment4MoviesMy ProjectSettings.Designer.vb 34 13 prjAssign5Multi
[Code]...
Alright, first things first i'm sorta new to VB .NET i know VB6 like no one's business and am looking to upgrade but to do that i need to know how to be able to access form controls in modules, and i've done that, but i'm not sure if its right, here is my code frmMain:
Option Explicit On
Option Strict Off
Friend Class frmMain
[code].....