My environment is VB6 (NOT .Net), and I have three function-similiar com+ DLLS with different GUID. For example, DLL A, DLL B and DLL C have the same function Beep(). I have a VB application, if I want to use DLL A Beep(), I should import the DLL A reference, and rebuild my application. If I want to switch to DLL B Beep(), I have to change the DLL reference and then rebuild my applicaton.. The same to do if I do with DLL C.
View 1 RepliesI am using some interesting code to perform dynamic unmanaged dll calling:[code]I want to be able to change the parameter signature and type of the delegate to void or to a function returning integer, string, or boolean.Basically, I want my program (interpreter) to be able to call upon any method in any unmanaged dll that the programmer has access to since I cannot predict what method the programmer will want to have access to - I'd like to enable them to have access to any useful method.[code]This raises a complaint on the line with 'Dim theResult = ' on it. The error is "Object of type 'System.Int32' cannot be converted to type 'System.Object[]'."
View 1 RepliesI am trying to understand how to interact with external DLLs written in C++ for use in my VB.NET application. I have some DLLs that a client wrote that do some math functions. Everything was working on a 32-bit machine. Because we were taxing the 32-bit machine we moved to 64-bit. Now we can't get the same functions to work. The DLLs were re-compiled as 64-bit DLLs and they still don't work. So my client wrote some dummy DLLs to see if we could figure out the problem. Here are the "signatures" of the DLL calls that I am making:[code]....Ultimately I would like to get to calling initialize_quiet and I am guessing at the format of the marshalling, const size etc.
View 3 RepliesI have a simple vb.net project that outputs a dll. In order to build this project, I have to reference some 3 3rd party dlls by manually adding them to the project and then building.
What I want to do now is auto build this using a app called CruiseControl. . . I have been told that in order to use the 3 3rd party dlls, I have to modify the .proj file to include the .dlls. The thing is, where in the proj file do I include this
and how do I do this? I think I may know where the section is and I have included it here:
[code...]
When I run the auto build program it fails (it runs through but fails at compile time); when I build this manually it works when i refer the dlls. What am I missing to make this work?
I have read plenty websites and i can not find the solution...I dont know why, i have tried many algorithms and none of them work for me. Anyone knows where can i found some dynamic programming algorithm to solve the problem of the coin change?
View 5 RepliesI have read plenty websites and i can not find the solution...I dont know why, i have tried many algorithms and none of them work for me.Anyone knows where can i found some dynamic programming algorithm to solve the problem of the coin change?
View 2 RepliesI have an MS access database with some .dbf files linked to it. One of the dbf file is a sales file. I am trying to generate a report for each of the month's sales. For that the sales dbf file will be different for each of the month. I want to give an option to the user to specify the file name from which he wants to use to generate the report. After accepting the input from the user, i need to link to that table in MSACCESS. Is there a way to achieve this from vb.net
View 5 RepliesHow would I change this code to make the factory dynamic. I believe I was close with remoting. I don't want any hardcoding of the factory, nor do I want to have to recompile. The database drives it.
Dim genericRule As Rule
Dim factoryObject As String
factoryObject = _dal.GetFactoryObject(ruleId)
[code]....
how can i select these buttons in the program ?I can change the propertiies inside the click event because i know wicht button i pressed thru the sender of the event but i don't find a way to adress the other buttons outside the event.
please note that i am a beginner in programming in vb.net
For i 0To 1
For y = 5
[code]....
I am working on a little project and am having some issues with a checkbox. I am adding a number of checkboxes to an ASP table via code by adding rows and columns dynamically. This all works fine except for when I go to check them based on loading a preexisting record. For some reason some of the checkboxes are getting set to TRUE when the new row is added to the table. [Code]
View 1 Repliesi have created a dynamic tabpage and a dynamic tablelayoutpanel inside it then added dynamic textboxes and labels inside the tablelayoutpanel...the thing is , i am having a problem on how to access the value of those textboxes and labels and add them as new columns in the new table(tagpage) in mysql database, i can already create the table in the database but i cant add the new columns in it. heres the code for accessing the values of the labels and textboxes
error: NullReferenceException was unhandled....Object variable or With block variable not set.
sql = "alter table " & tbl_selected(counter) & " add " & frmMain.Controls("TLP_" & SecArrList_sp(counter2)).controls.item(SecArrList_sp(counter2) & "label" & counter).Text & " varchar(100) NULL;"
I would like to bind a DataGridView to a different LINQ query every time (in order to reuse the same form/DGV for different queries), like this:
[Code]....
but the "Qry", and the number of comboboxes, and their field names would change every time.
Basically i have one TabControl with a form and 2 browsers within one form I have ProBlem To call the dynamic browser to navigate with dynamic Textbox.text
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I need to represent the following query using LINQ:
DECLARE @PurchasedInventoryItemID Int = 2
DECLARE @PurchasedInventorySectionID Int = 0
DECLARE @PurchasedInventoryItem_PurchasingCategoryID Int = 3
DECLARE @PurchasedInventorySection_PurchasingCategoryID Int = 0
[code]....
Now, I know that a query in .NET doesnt look like this, this is my test in the SQL Design Studio. Naturally VB.NET variables will be used in place of the SQL local variables.My problem is this: All of the conditions after "WHERE" are optional. In that a query might be made that uses one, some, all, or none of the conditions. V.PropertyID and V.Value can also appear any number of times.In VB.NET I can make this query easy enough by simply concatenating strings, and using a loop to append the "V.PropertyID/V.Value" conditions.I can also make a Stored Procedure in MS SQL, which is easy enough.However, I want to accomplish this using LINQ.
Ive managed to dynamically create a form, and dynamically create a timer, but i have not been able to create the timer on the dynamic form. Specifically, i need to be able to have the timer itself create another form with a timer. (I realize that this would create a new form every interval on the timer, that is what i want to do)
1. A way to add the timer to the dynamic form, and maintain the timer sub on my main form.
2. A way to create the whole thing over (dynamic form and timer) through the previous dynamic form and timer.
I was thinking i could use a collection/array to store the forms and timers, but i'm still having trouble figuring out how to add entire forms or timers into a list. (A timer is not considered a control, so i cant use a controlcollection...)
Heres my code;
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim frm As New Form
[Code]....
*EDIT* Btw, my idea was to use i as a variable that increases every time a form is created, then insert the form into the array, with i as the integer. i just need to know how to create a new form with a different name each time. (as with timers)
I've seen quite a few questions about calling 32 bit ActiveX components on 64 bit platforms - as I understand it you can't create a 32 bit ActiveX component from a .NET application running in X64 (native) mode. This is OK and I think I understand it.But my question is more basic. Is there such a thing as a 64 bit ActiveX component? or is ActiveX always 32 bit, period?
View 5 RepliesI was once a VB 6 expert, but it's been a while.I am attempting to create a simple DLL in VB. I created a new WCF Service Library, which is what it looks like I needed to do. I filled out the interface and implemented it. Here's the interface:
<ServiceContract()>
Public Interface AgileApi
<OperationContract()>
[code]....
And attempted to call it, but I get System.EntryPointNotFoundException. I've tried pathing the defined library and copying the dll file into the same place where my EXE is, but no change to the error.
I've tried to use NRefactory(Vb) [url]... but it didn't come with mono.cecil.dll so i downloaded that too, but when i merged it together the versions seem to be off (i had error Mono.Collections missing class)
does anyone seem to be able to get NRefactory working?[code]...
straightforward method of creating a DLL with properties and methods exposed to other programs? I followed the instructions that I found on the MSDN websites as well as suggestions from forum participants. The DLL should be available both for COM and .NET programs. So far, nothing has worked.There are numerous variations listed on the MSDN site. No doubt there are reasons for the differing instructions. However, I have not had sufficient success with any of them. Sometimes, just building the project makes the class visible to COM compatible programs. Other times, only after running regasm. Still other times, I have to run regasm, sn and gacutil before the DLLs class gets exposed. Then forums posters tell me: "you shouldn't have to do all that.
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You developing a application named "DemoSoft" which is going to be a shareware or Premium, you use different DLL's in this project and some DLL's are owned by you, they are very useful and valuable, you are selling this software and are charging the customer for what the software does but since this software uses one of your Valuable DLL, actually few functions from it you have to deploy it and cannot additionally charge for the whole dll. since that would be unwize.now i want to ask what can you do so that This DLL in "DemoSoft" cannot be exploited, meaning end user could use my software but if some thief tries to use my supplied DLL in one of his own app he is unable to do it, in simple terms DLL should work only and only with DemoSoft.
View 5 RepliesHow would I get a list of the DLLs that a process is using? For example, if a process used "SomeDLL.DLL", would it be possible to find that out using a VB program?
View 10 RepliesDO NOT REDIRECT THIS TO ANOTHER THREAD BECAUSE THERE ISN'T A ONE I'm developing a project in VS2010 - WPF - VB.NET (4.0)The solution contains 11 projects; one executable and others are User Controls, Custom Controls and Classes.Now when I build my solution this happens in the output (Debug) folder:
Images/(images used buy MainProg.exe)
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i have been researching this question fror weeks and yet i cant find the answer. Can anyone tell me how i can link two vb.net projects in VS2010 together using a dll. For example, say i have two projects, project 1 and 2. if i want to open a form from project 2 using a button from project 1, what will the procedures be and the codes.
[Code]...
I have a simple question for you I think, but for me it bugs me a lot
So as the title says, I want to load a dll from a folder in my exe and use it's classes
How can I do that? like for example my app is named "run.exe" and I want at load time to load dlls from folder "resources" and use the classes from the dll's it "imported"
I have a project that references two DLL files in the system 32 directory as COM references. The files are certenroll.dll and certcli.dll which are included in the system32 directory as part of the OS. My app is a console application that I'd like to have as a standalone exe. It seems that the these files are converted to something like Interop.CERTENROLLLib.dll and Interop.CERTCLIENTLib.dll and dropped in the bin directory for my project. Since I want the app to be a standalone exe able to run on other PC's I'd rather see the app reference the original DLL files in the system32 directory and not have to carry these dependency files around with it.
View 2 RepliesI made app. But it doesn't work on other peoples computers. I don't want to publish it as installer App because it doesn't look good and people can't choose which folder it will install to. Is here way to copy My Exe file and all DLLs to one folder so it works for everyone?
[Code]...
In my Installer project I just added my OracleDataAccess.dll to the "Global Assembly ache Folder" folder in the "File System on Target Machine" But when I install my project it doesn't install the OracleDataAccess.dll on the target machine'sC:WindowsAssembly.
View 3 RepliesI have this vb program that uses 2 dlls i made in c++, the dlls are attached to the project and are set as "copy always" and in vs debug mode they work fine, however when i try to publish the program and run it it can no longer find the dlls even tho they are right there next to the program itself the dlls are declared as following: Private Declare Function Trace Lib "Lowstuff.dll" (ByVal targ as IntPtr) As UInteger.so what im thinking is that maybe theres like a switch in project settings i didnt flick or maybe i need to specify the dll with full path or wut?
As it turns out it had nothing to do with vb afterall, it was the c++ dlls that had to be made as static. However now i have a new problem: Im geting a bunch of overflow exceptions from my program but only on other computers, in the dev machine it reports no errors or warnings whatsoever, i also went over function where the error was generated and all the functions it used and detected no fault so how am i supposed to track these down?
I need to get hold of the Sharepoint DLL's. I understand that these are available from the Sharepoint server however the company I work for is quite large and the server is not anywhere I can get close to to copy the DLL's. Is there somewhere I can download these so I can start to develop my VB.NET application locally!
View 2 RepliesI have a vb.net 3.5 class library project that needs to reference two assemblies that have the same namespace. We have two third party dll's in which one is version 5.1 and the other is version 6.1. They have the same dll filename and they utilize the same namespace and functions/class names. The project needs to use one or the other depending on a specific situation. I've investigated up on a c# process that uses the "extern alias" feature to pull in the different assemblies.
[URL]
What use is the Aliases property of assembly references in Visual Studio 8.It seems that this feature isn't fully available for vb.net. Things I've Tried I've renamed the 2nd dll and added both references to my project. At this point I get tons of: 'blah' is ambiguous in the namespace. So I need to alias the different versions. In vb.net you can do aliases on an imports statement like:
Imports version5 = Somedll.Something
The problem is I can't setup an assembly reference alias for the different versions of the dll. Apparently in vb.net you can't set these up in the reference properties window. So I tried setting them in in my project file like this:
<Reference Include="somedll.5.Navigation">
<HintPath>....UtilityThirdPartyDLLSsomedll.5.dll</HintPath>
<Aliases>SomeDLL5</Aliases>
[code]....
I would then expect this to work:
Imports version5 = SomeDLL5.Something
Imports version6 = SomeDLL6.Something
But the "SomeDLL5/6" doesn't show up in intellisense. So how can I reference both dll's in the same project?