I apologize if this is a rudimentry question, but I have an application that makes several calls to several .dll's. I notice that the first time the function is called, it seems to take a very long time (about 10 seconds) for the functions to complete.
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In class i saved my program in with load of other test programs for the same assignment and got everything mixed up i finally figured out what was what and loaded the program in Visual Basic. Now my program doesn't recognize one of my forms when i try to access the design view of it. I hit run for the hell of it and the program runs with errors of course but the form1 "the missing one" shows up with all the buttons etc and i can use it.
Heres the link to the files. [URL]
I have a class that needs to create another class (that inherit from window). This second class build a set of controls in a new open window.
Because the process of building this new second class it quite long
I need to open this new window in a different thread
I am trying to do this with a backgroundworker but as soon as the new class starts to build the interface (textboxes etc) it casts an error saying that the thread must be static
VB.Net 2008 I have a problem when loading dlls.Such that I have a dll which contains a class like:
Public Class class1
Function fnc1(ByVal par1 as Boolean, ByVal par2 as String) As Point
Return New Point(0,0)
End Function
[code]....
I am working on an application which will be used to read/write/provide custom functionality using an mdb file. I have been able to create the program, and access my test mdb file just fine using the normal ado connection protocols. The final product will be used in an application/file format where each user will have thier own mdb file, and multiple users will be using the same application on the same computer to access their files. I need to figure out how to load the mdb file at runtime using both an open file dialog, and to be able to double-click the file in windows and have the applicaiton open and load the db that way (I know how to create file associaitons, it is just the databinding that I am having issues with- and the mdb file uses it's own filetype, so I won't step on the toes of MSACCESS).
View 8 RepliesI'm working with a 3rd party assembly to implement something in our in-house software. I can make the refence and work with the library without a problem, but when I run the program to test it i'm getting this error "Can't load file or assembly "assembly file" nor either of its dependencies. The system couldn't find the specified file" (i'm from Mexico, exception is in Spanish so i had to tanslate it, sorry for the poor translation) I have given read and write permission to the file, the folder, and for all users and still wont load it. I saw that the assembly has the PublicKeyToken=null, does that have any to do with that i cant load the assembly?
View 3 Replieshow I can load a value of 1 into a textbox at run time?
View 2 RepliesI am creating a test project using IBM's Rational Functional Tester(RFT) tool(we are using the VB version of it and it only supports till .net 3.5).In this project I am making all database queries using the entity framework.The problem is entity framework retrieves "Metadata", "Connection String" etc from the App.Config file,and RFT won't let me add a App.Config to the project(I guess it is designed that way -- I googled adding an App.Config file to an rft project and came up with nothing), and the Entity Framework requires you to have the app.config file at the entry point.I was building the string to pass to entity framework in code, but my boss really does not like that. So looking at my options I think any of the below 2 solutions should suffice
Is their any way to load an App.Config during run-time. Is their any way to add an App.Config to an RFT project(should really be my first question).
i need to load all buttons(200) text in my vb.net windows form at run time from my database table column.
for single button its like
button1.text = database value
but i want
For i = 1 to 200
[Code].....
I am working on a project where I have to load assemblies (lets call them tasks) at runtime, run the task and then be able to kill off the whole assembly so that the dll can be replaced without interrupting the main application.There are many of these tasks running within the main application,some run sequentially and some run in parallel.Occasionally one or to of these tasks need to be updated and then re-added to the queue. Currently we are stopping the entire application and interrupting the other tasks at whatever stage they are at, which is not ideal.I have figured out that I will have to load each assembly into a separate AppDomain, but loading the assemblies in those domains is proving difficult, especially when I need to actually run the tasks and receive events from them.I have been looking into this problem for a couple of days and have still not managed to get a working proof-of-concept.
I have an Interface for the tasks which includes a 'run' and 'kill' method (subs) and a 'taskstep','complete' and 'killed' event.'taskstep' returns an object to be cached later, 'complete' fires when the whole task is done and 'killed' fires when it is ready to be unloaded.There should also be a timeout on the whole process of two hours and a timeout of 2 minutes on the killed event in case it gets stuck, at which point I would like to be able to unload it, forcing any threads to terminate (which is what 'kill' should do anyway).Each assembly may contain several tasks, all of which should loadable be unloadable.I have no problems loading these tasks as 'plugins' but am lost when trying to both use them and unload them. If I have to create some elaborate wrapper then so be it but is what I need even possible? I have tried inheriting from MarshalByRefObject but I do not even know the assembly fullname unless I load it first, which then locks the file. I have tried loading from a byte array of the assembly. This means that the file is not locked but a copy of it remains in the current appdomain. This will become problematic over the following months / years![code]
I have VC++ windows service running on a windows 2008 server which invokes a VB.NET exe with certain comandline parameters using CreateProcess(). VB.NET application has a form wich uses WithEvents to handle certain event. These event handlers are set in the Forms Load event. Problem here is when i debug the VB.NET application individually the application works fine, Forms Load event is getting fired. But when the exe is invoked via the windows service the form Load event does not get fired. Note the Forms Show function called and not showdialogue.
Why this was done i am not sure it was a VB 6.0 code which i have converted to VB.NET. But everything works fine when i debug the application individually on windows 2008 64 bit.
I wrote an assembly(not managed completely ("1.dll"))
i want to load it at runtime (in a managed assembly) but when i try to load it it give me this error:
"Could not load file or assembly '1, Version=1.0.4207.24855, Culture=neutral, PublicKeyToken=null' or one of its dependencies. Attempt to load an unverifiable executable with fixups (IAT with more than 2 sections or a TLS section.) (Exception from HRESULT[code]...
If my namespace is Company.Application.EDI.Acknowledgement and if I stick with theprogramming practice of one class per file then should my class be saved asacknowledgement.vb? Are there any gotchas that will come up?
View 5 RepliesNot sure if this is the correct place for this postWhat I am trying to do is update dll's in my application.Using VB with dotnet 2 (Visual Studio 2010)The Project has a number of Dll's one of each department i.e. Sales is sales.dll... Development is development.dll etc....Each dll has classes/User controls which is used and dispose depending on the section within the application.Once work has been completed with a dll, it put in the deployment area, currently another is program launching checks the file verison and updates as required, before the main application lauches, this works. The exe hasn't needed updated for a long time as all the changes are in the dlls.
What i have been looking at is update method for the dll's dymanically, when not in use, when the dll called into use or disposed of.I have looking at LoadLibrary/FreeLibrary and application.domain. I have been reading loads and tried out some of the examples, with a modified to suit. I am just not getting it.
I am having another issue with WMP in VB.NET 2010.I wrote an app using WMP in VB.NET 2010, using .NET Framework 4.0 of course, but had to change the framework target to 3.5. After doing this, the WMP component does not work. How, if I even can, fix this problem so that the program will run on .NET Framework 3.5? The error says that it could not load AxInterop.WMPLib.dll because it was built in a runtime newer than the currently loaded one.
View 2 RepliesI am not a total newbie to Visual Basic. However, the last time I used it was back in the days of DOS and Windows 3.11. Now I am using VS10 on a Windows Vista machine and it so different, I feel like a total newbie.
I am working on a project that I wish to load RTF files into a RichTextBox and an accompanying image into a PictureBox at runtime. I want this to happen when the user clicks a Menu Choice.[code]....
I am looking for a way to add an interface implementation to a class at runtime.
Here is a sample code, which I will discuss below.
Public Interface IAction
Sub DoThis(a As Integer)
End Interface
[Code]....
This is related to WCF, where one needs to provide to CreateHost a single class, which implements all interfaces required for the end points. In this scenario, ActionDispatcher is such a class, and IAction is one of the many interfaces to be implemented.
My vision is to avoid implementing IAction in ActionDispatcher manually, but have some sort of registration mechanism, where I can say, that ActionDispatcher must implement interfaces IAction, IDoing, INoAction, etc - and have the dispatching methods generated for me.
MSDN says, that any class is compatible with any interface, so I don't need to declare "Implements" in the ActionDispatcher. But I still need to implement the interface and connect the implementing method to the interface definition, so WCF can find it when needed.
The closest thing I found is probably the Automatic Interface Implementer, but it (1) creates a new type, (2) adds dummy methods.
I has also tried to understand CodeCompileUnit class, but so far couldn't see the relation to what I need.
info on creating instances of my own class at runtime. Simple project for family recipes but would like the option to add new recipes with new instances of my own food Item class at runtime. Creating my own class,no problem. Storing the data in an XML file, OK on that as well. My issue is creating new instances of different food item class as I use this program over time
View 13 RepliesI'm creating an app to manage the movies I've watched and get some info about these movies and then display these info in labels.At moment I'm trying to load the "runtime" and "genre" into label3 (runtime) and label5 (genre). Once the movie name is clicked in the listbox control, these info are loaded from a website (webbrowser control) and then displayed in the labels. My question is: Is there any way to make the My.Settings save these info for EACH movie? Something like this:
Saving the info:
vb
If ListBox1.SelectedItem.ToString > 0 Then 'LOADING THE INFO CODE... 'SAVING... 'create: My.Settings.(ListBox1.SelectedItem.ToString & "1") = Label3.text 'create: My.Settings.(ListBox1.SelectedItem.ToString & "2") = Label5.textEnd If
[code]....
I am creating a application which one select and display swf file with frame on slider. In this program user can select range of frames.like swf file have frame range is 1 to 5000. in my app user can mark first mark on 100 frame and end point on 1000 frame. now this 100 to 1000 will be my range and in store this range in notepad.Now i want to create swf file of selected (or Created range - 100 to 1000) range. As per this process user create multiple ranges of frames.how to create swf file from created range (selected frames) in vb.net. I checked on net but i cant find how to split or runtime create swf file from selected frames of perticular swf file.
View 5 Replies1. I have three classes. Now I want to know how do I convert object to my class runtime?
for example,
Dim obj as New Object
obj = CType( MyPassedObject, Class1 )
Now, in above code, MyPassedObject can be Class1 or Class2 or Class3 but it is passed as Object. So is there any way that I can convert into CType as per the type of that object, directly to that class? I mean, I can pass object name into parameter and write down CASE statement here to convert to that class but I do not want to write down Case statement for each of my class, so just want to know is it possible anyway?
I mean just for example, Can I do something like obj = CType( MyPassedObject, GetObject('Class1') or any other way?
2. Now for this obj, I am getting properties runtime and setting values and then updating.
for example,
Dim PropertyInfo As Reflection.PropertyInfo() = obj.GetType.GetProperties()
Now, Will it work fine if obj has been declared as Object and then I typeCast it runtime and then I get properties and set its values. Will it work if obj's variable type is Object or it must be that class type itself.
I'm developing a software that handles very specific regional standards. In one part of the country they have different standards for entering this data than they do in other parts of the country. In fact there are hundreds or thousands of possible configurations that would be best in various regions.
The solution I've come up with is to write a program that can load different control configurations with the supporting code to its main form at runtime. I do not know how to accomplish this. Would I use visual inheritance at runtime? Would I use a plugin system? I just need to potentially allow a power user to design thier own interface or to modify an existing interface to better suit thier needs.
Edit: Is there a way to define the base class of a form at runtime? Could I create user controls in a plugin and pass them in to the host program?
I have the name of a form in a string variable, e.g. "frmOptions". I want to:
1) get the fully qualified name of the form
2) determine if the form exists in the application
3) create an instance of the form
4) show the form
I know that using reflection I can do #3 this way, but I need to get the fully qualified form name first[code]...
I created a simple VB 6 executable that runs fine on my computer (Windows 7), but when I deploy it to another Windows 7 PC or a Windows 2003 server, I get the error:
"Runtime Error 430: Class does not support Automation or does not support expected interface".
The code
Private Sub cmdStart_Click()
Dim rstLogin As ADODB.Recordset
MsgBox ("Before first recordset")
Set rstLogin = New ADODB.Recordset
MsgBox ("After first recordset")
End Sub
The line that generates the error is " Set rstLogin = New ADODB.Recordset". I had a coworker compile it from his Windows 7 pc and run it on other machiens and it works fine. So I believe it's an issue with my pc config.
I have a little banking console app for a class project. I've created a class (Account). What I want to do is name the instance of the class based on text input:
Dim strFoo As String
strFoo = Console.Readline
Dim strFoo as New Account
Obviously this won't work because strFoo is a String.
I'm trying to make a V.O.S, (don't ask) and I have 2 questions:
1: how would I run programs in my resources files? (For example, if i included "Random.exe" could i do Process.start("Random.exe")? or what would i do?) Also, how would i add resources and settings files at runtime? is this possible?
I want to create files based on the particular value of supplied recordset using the StreamWriter at RunTime. The files will be dynamic these will be create based on particular field.Example: If I have list of employees, I don't know from which city of the country they came from. I want to create a different files for every city and write those employees in to the corresponding files at runtime.
View 1 RepliesI am working on a project that uses a .txt file to store data for my arrays. Everything is working correctly i.e. I can read the file and write to the file, my issues when I exit out of runtime I get this msg
Quote:
M:My4BVB....Customer.txt
This file has been modified outside of the source editor. Do you want to reload it?I understand what it means, what I would like to know - is there a way to stop it from popping-up?
I am trying to create new variables inside a class after creating its object at runtime. The problem is that I don't know the variable names or the value beforehand so I have to create the new variables at runtime.
[Code]...
This is a more elaborate explanation of my code. If you observe that in the Eval function I have tried to evaluate Fval(abc). Now the object array abc is not declared in the Test class because it existence is not known beforehand. What I want to do is create an object array abc of length 2 and populate it with some values and when Fval(abc) is called then then the value of index 1 should be the return value of Eval fucntion.
I've got some code that looks like this:
If ediFileGroupAbbr = "NIPDSINV" OrElse ediFileGroupAbbr = "WWPDSINV" Then
Dim p As New PrivateBillingAdapter_ForN(ediFileGroupAbbr, businessLocationID, mode, EDIJobItemLogID, BusinessUnitID)
Return p.ProcessEDI(True, False)
ElseIf ediFileGroupAbbr = "FOPDSINV" Then
[code]...
to which I'm passing in a value of ediFileGroupAbbr = "FOPDSINV". But the code is executing as if it's dropping into the third condition (p is a PrivateBillingAdapter). So I've stepped into the code and, sure enough, it drops into the second condition. BUT, if I step into the execution of the constructor, the debugger jumps to an odd place in the code - sort of the middle of a method and not on any actual line of code.A couple clicks and it hops back out of the constructor, still in the second block of code. But if I mouse over the variable p to see it's type, boom, its a PrivateBillingAdapter (from the third block).Like I said, something is clearly wrong but I don't know what. I've tried rebuilding several times but with no new results.This is VS2003, framework 1.1 with VB.NET.
