I have been programming for some time, but I have some fundamental questions, one of them is as follows:
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Is it compulsory to create IsReadyOnly1 and IsReadyOnly2, is there a way to take the parameter from new method to IsReadyOnly1 Directly like in reference type?
Just curious. I recently had an incident in which I was called to troubleshoot a VB Winforms app. I have 2 versions of a package (LeadTools) installed on my machine. These packages contain numerous dlls and it is not unusual for a dozen or more to be referenced in a single program.
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Build calculator using visual basic 2008
View 1 RepliesI am just wondering how I can add Direct X references to Visual Basic in Visual Studio 2010 Beta 2. I cant find them in the .NET reference list, or the reference list, or anywhere. I downloaded the Direct X SDK for August 2009, but I can not add the .dll files to the reference list. Is there anything I can do to add them? I need the references for programming reasons.
View 5 RepliesI have Crystal Reports 2008 installed on my win7 laptop but when i go to insert references from my application settings the CrystalDecisions references are missing and im not able to find them. Note: they do exist in my "c:windowsassembly" folder.
View 3 RepliesI can't figure out the syntax for searching an array of stored words for a string matching an input string. I understand the pseudocode of it, but I'm tripping up over what variables I need to put where, and how they should be formatted. More than happy to provide more details should anyone request them.
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Iam developing a Windows application using Visual Basic 2008 with a SQL Server database. Throughout the program I give the user as many options as possible and have no problem with either the database or the windows forms. The program does not initially require a Login and I want toprovide the User with the opportunity to add a Login to the system. The default Login form is perfectly satisfactory.
The problem is that I can't figure out how to program the change sothat the Login from isopens the program rather then th form designated as the StartUp form. this forum I am able to prgrammatically change the form but I can't figure out how to make the requirement a permanent factor. I tried using a Constant, but if the User wants to change, you can't change the constant. Its an apparantly simple yes/no situation but if I set a varable to yes and then change it to no the next time the program runs, the change will be lost.
I am very basic with this right now and I'm certain there are ways to do this even more simply than the 2D array, however that is what we are working on right now.
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I have recently taken a liking to programming, and have programmed a few games in C#,my friend has asked me to program an application for him to use in his shop. But I have no idea of what language is best suitable?
View 8 RepliesI avidly create games in VB.net. Being a hobby programmer I give my games away for free. Since I'm a hobbiest without formal training I do try and educate myself on proper programming principles and follow them when programming such as OOP. There are however some things I have obviously missed being self-taught that perhaps I would know if I were formally educated. Once such issue that has really been my bane is how different classes (from now on referred to as objects) 'know' about each other WITHOUT programming specific interaction.
Okay imagine this, you have a space game and the following objects
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Now each one of these objects has a Health, X,Y and Z private members and properties that are all inherited from clsSpaceEntity for argument sake. Now one way of programming collision between them would be to code out the following logic in the main game loop
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Now this might seam okay if your talking about the simple example above but some of my games have tens or even HUNDREDS of objects that interact in this basic way. Is there a way in OOP to do the following... for each thing that inherits from clsSpaceEntity check against every other object that inherits this type (except itself) and if they collide then reduce health next? This sort of ability for a type of objects/class or whatever to be 'aware' of another and how they are the same/different and interact would save me tonnes and tonnes and TONNES of coding.
I want to add References from my another project. How Can I do that.
View 3 RepliesI code primarily in vb.net. I've been doing basic dependency injection manually and am looking to learn more about DI/IoC and maybe use a DI/IoC framework/container like Ninject. There are lots of examples and write-ups using Java and C# code. I'm looking for the best resources for vb.net programmers. Likewise, is there a particular framework that would be easiest for a vb.net programmer to pick up?
View 3 RepliesI am trying out Modi but i cant seem to find the references to add. I have office2k7 but cant find Microsoft Office Document Imaging 12.0 Type Library in com tab. Also cant find the dll in C:Program FilesCommon FilesMicrosoft SharedMODI
View 2 RepliesI am using vb.net 2005.After I rebuild the solution that has many projects, some references in a project are always dropped.I have to manully add them again.
View 1 RepliesI've used VS 2005 for a while, when you use 'Add Reference' it puts the DLL in the BIN directory. I did this with VS 2008 and I don't see the DLL in the BIN. I am using an Application ( not a website ).
View 9 RepliesHow can i add Interop.ADODB.dll to my references as i cant seem to find it when i try?
View 3 RepliesOver and over i keep getting stuck on the idea of adding references to a project. I was looking about visual studios 2010, i clicked the project menu tab, and then scrolled to add reference. When i would click on it, it would bring up a large list to choose from. So, my issue is as follows. I am told to reference via my compile error message a few items. I thought i found the elements i was looking for and pressed OK. When i would try to run, it would still give me the errors.
What am i doing wrong? Am i not doing something correct?
here is my error code, and i looked it up, but for some reason, as stated above, i must not be referencing correctly?
Quotec:\users\fallenreaper\documents\visual studio 2010\Projects\Crystal Report Software\Crystal Report Software\CrystalReport1.vb(99) : error BC30652: Reference required to assembly 'CrystalDecisions.CrystalReports.Engine, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' containing the type 'CrystalDecisions.CrystalReports.Engine.ReportDocument'. Add one to your project.
c:\users\fallenreaper\documents\visual studio 2010\Projects\Crystal Report Software\Crystal Report Software\CrystalReport1.vb(99) : error BC30652: Reference required to assembly 'CrystalDecisions.Shared, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' containing the type 'CrystalDecisions.Shared.RequestContext'. Add one to your project.
c:\users\fallenreaper\documents\visual studio 2010\Projects\Crystal Report Software\Crystal Report Software\CrystalReport1.vb(138) : error BC30652: Reference required to assembly 'CrystalDecisions.CrystalReports.Engine, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' containing the type 'CrystalDecisions.CrystalReports.Engine.ReportDocument'. Add one to your project.
c:\users\fallenreaper\documents\visual studio 2010\Projects\Crystal Report Software\Crystal Report Software\CrystalReport1.vb(144) : error BC30652: Reference required to assembly 'CrystalDecisions.Shared, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' containing the type 'CrystalDecisions.Shared.RequestContext'. Add one to your project.
I have a function GetAllProducts() which fetches all products from a database and stores it in the cache for future requests. This works fine, but if I then call the function e.g. ProductSearchResults = GetAllProducts(), and then modify ProductSearchResults variable, this also modifies the cache, which is very important this never happens, as the cache affects the whole website.
I understand this is because both ProductSearchResults and the cache now have the same reference, but how do I solve the problem? Is there something that I can put in GetAllProducts() to ensure the cache always uses its own value?
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I'm in college and I want to show my friend how to use winsock but for some reason, I can't add the Winsock control through references. Is there any way to load it through code?
View 3 RepliesI have a project that uses web references to make SOAP calls to several web services. When I'm working locally, the services are hosted on my local machine, so the URL of each web service is something like [URL]. When I deploy the project to a server, the URL needs to change to the production URL. Currently I am accomplishing this with a prebuild event that does a find-and-replace on each URL and overwrites it with the deployment URL before deploying. Surely there is a better way.
View 1 RepliesI am getting the following error when I add a service references that points to a web service.
'System.ServiceModel.XmlSerializerFormatAttribute' is not accessible in this context because it is 'Friend' in the Reference.vb file.
I have not gotten it in other projects that I have done that point to the same web service. I have recently add some code that I downloaded and cleaned up the errors in to my project and this seems to be what broke it. This code uses several new features that I am not familiar with, mainly the "Friend" declaration and also uses name spaces in the code it self. Also I converted the code from C# using an utility that I downloaded, that untility was not 100% in it's conversion, hence the clean up that was needed.
I have a tier application based on this video url... So far the client application only has a reference to the Business Logic (not Data Access).If i needed to tie a control such as a TreeView to list certain data fields from my table then where and how should i do that? For example i could write a For each statement to iterate through the table which returns the item from a table or i could do it in the WCF service app but how does this tie in with a control such as TreeView especially when there are no references?
View 2 RepliesIn the VB6 interface, when you went to Project>References, it would list all the references that have already been added to the project with a ticked box next to the name. However in VS2008, when you go to Project>Add references, the tickboxes are not there. So how do you know whether or not a reference has already been added?
View 1 Replieswhen i select a reference, it doesnt show the properties for it any longer. I would really not have to copy every reference locally for each project im working on, as well as im not too keen on reloading visual studio either.
View 2 RepliesSo I have a picturebox on my windows form and it has an image set to it, I also have a bunch of reference files that reference to a bunch of images.Me.PictureBox1.Image = My.Resources.imgs.image1That piece of code works.Now, I tried to databind the picture box to a database so the images would load on the change of a combo box but that got confusing really fast so what I did was created a database and it holds all the image references such as "My.Resources.imgs.image1" but its stored as type varchar(50).Connecting to the database and retreiving the strings is no problem, that works all fine.The problem is converting the string to the image reference, it doesn't work. I've tried type casting, I tried using imagelocation rather than image but I want to reference to the resources that is attached to the project.
Imports System.Data.SqlClient 'before class constructor
Dim SQLStr As String
Private ConnString As String
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I'm still new to most of this but I seem to be finding that while you can load the Microsoft Reference Libraries at no charge, I'm told they are the slowest method to use.I have tested Gembox and only read about others. Is it worth the effort to deploy these 3rd party platforms, even if I'm working with small data sets, for the moment at least? Speed is one thing but when you're talking about 2 seconds vs 0.2 seconds, it's not worth $900 per seat.
Are there other 3rd party references which are Open Source, or no cost, etc...I would like to hear what the rest of us are doing on this?
In VB.Net you can do something like the following without any issues... just ignore the fact that this is a pretty useless class :-)
Imports System
Public Class Class1
Public Shared Function ArrayToList(ByVal _array() As String) As Collections.Generic.List(Of String)
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However if you do the same thing in C#...
using System;
public class Class1
{
public static Collections.Generic.List ArrayToList(string[] _array)
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You will get an error on the line with the return on "Collections.Generic.List" saying "The type or namespace name 'Collections' could not be found (are you missing a using directive or an assembly reference?)"I know that you have to actually have a using directive to System.Collections.Generic to use List but I don't know why. I also don't understand why I don't get the same error in the function declaration, but only in the return statement.
Edit: Just to note, the question is really about the referencing of a sub-namespace such as in the example being able to reference Collections within System.
Maybe this is a n00bish question, but I'm used to c++'s pointers and references and this is confusing me a bit. Let's say I have the following scenario in a VB.net application:
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The situation is this: I have a collection of objects, and during execution of the program, any of them can be fetched from the collection to be used/edited by another part of the program. Now obviously if I edit the data inside the object it is allright, but what if I want to replace the object, as I did above at line 5? I would change only the local reference (y) but not the object inside the collection!
Is there a way around this? How can I take with me a "reference to the object's reference", instead of just a reference, so if I reassign it it will also reassign the one in the collection? I hope I'm making myself clear, unfortunately english is not my native language, to be clear: in c++ this would be easy using a pointer to a pointer, or passing a pointer to the object always by reference, so calling new or reassignment on it would change the original pointer itself)
I have a number of routines that I need to create. The routines are all pretty much the same with some minor differences here and there (too much to just make 1 function that does it all).So I have been trying to abstract as much as possible but there is one part that seems like I should be able to get done... but maybe not.So lets get some sample code: These functions will be modifying 1 field in a pass by reference response class
Public Class Response
Public FooA As String
Public FooB As String
Public FooC As String
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But... this of course does not work. field becomes the new value but of course does not update response.FooA (since it was reassigned and not updates -- strings are immutable anyway).
I have set references to Excel in my VS2005 .net project but the XIRR function is not available in the worksheetfunctions. In Excel it is necessary to add the Analysis Toolpak to the Add-ins. Do you have to do a similar thing in VB.net?
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