Form Control And Class Libraries?
Jan 14, 2010I want to create a library (.dll) of custom dialog forms. Which type of project do i make? Class Library, Windows Forms Control Library, other? Whats the difference between the two?
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Class Libraries (.dll's) Referencing Other Class Libraries (.dll's)?
Dec 17, 2010I designed 7 class libraries for 1 project.The project references all 7 libraries.3 of the 7 libraries make references to the other 4 libraries.I thought of just duplicating the code that's referenced in the other 4 libraries, but thats a lot of code.
Example:
PrjctA makes reference to LibA, LibB, LibC, & LibD.If LibA references LibB & LibC also will this fail?
Class Libraries (DLL's) In .Net?
Dec 3, 2009I'm creating an application that will utilize a lot of functions for performing scientific calculations. There will also be a lot of 3D and 2D rendering in my application. Hence i will have a lot of common functions that will be utilized frequently.
I have noticed that class libraries (DLL's) are utilized in applications similar to mine, and am wondering if i should utilize them in my application. The trouble is, i can't really think of what use they will be to me. The functions in my application will only be called upon by my application, so i do not need to make my functions accessible to others. The only other benefit i can see from using DLL's is reduced memory usage and .exe size.
Whats the benefit of using DLL's instead of just creating a bunch of modules in my application to store my functions? I have read that another benefit of using DLL's is they are easier to maintain and update as you can update the DLL rather than your entire application. I dont quite understand this, as if you are going to utilize new and updated functions you have added to your DLL's, then you will need to update the code that calls them as well. So again i don't see the benefit in using DLL's in my application.
Exceptions In Class Libraries?
Dec 6, 2009I'm creating a class library that contains a series of functions with Try...Catch blocks to handle errors. When i run another application that uses the class library, and call a function in the library using parameters that i know should cause an error (i.e. divide by zero), i don't get an exception thrown.
Can you not use Try.. Catch blocks in external libraries? If not, how are you suppose to handle errors in these functions?
Localization In Class Libraries
Aug 31, 2009I've just about finished my WPF app, but I just hit a hurdle: my app needs to be totally localized (I've achieved this using databinding/RESX files & multiple cultures), and the actual program does this My problem is that I have a window where you generate reports on your progress.It's designed so that programmers will be able to design their own 'report sections', using interfaces & class libraries.Just one problem though: when I use RESX files inside these class libraries, they won't actually change even if I set their culture to the relevant culture I want to test.
View 2 Replies.net Class Libraries For Accounting And Payrolls?
Mar 22, 2012im searching for .net class libraries that could help me in accounting and calculating payrolls and other financial processes is there any libraries like that?
View 2 RepliesMessagebox.show In Class Libraries?
Dec 7, 2009why intellisense does not work for MessageBox.Show() in a class library? It works for MsgBox.
View 2 RepliesVS 2008 Class Libraries - Not Compilled?
Oct 19, 2009I'm looking to create a bunch of re-usable classes. I understand the strength of creating a DLL that is reusable, but I would rather keep them un-compilled. When adding an existing .vb file, visual studio makes a copy of that object instead of a simply reference.Is there any way to do this or creating a class library with .DLL the only way?
View 6 RepliesRemove Default Namespace For Class Libraries?
Jan 14, 2011I've wrote a class library in vb. it only has a class called MathEx. Now when i add a reference to a test project, i had to refer to the class as MathEx.MathEx is there anyway i could refer to the class as simply MathEx? (in other words i do not wish to have the default namespace added to my class libraries)
View 1 RepliesC# :: Reference Configuration Information From Within Multiple Class Libraries?
Mar 13, 2009I've got a bunch of DLL projects that I'm pulling into my application, each contains their own Settings.settings/app.config. When I compile the app and run for debugging, everything works just fine, but come deployment time I can't get my DLLs to read their own settings files.I've been doing some reading and it has become apparent that there's a couple of methods to getting each dll to read its own configuration - one is to dedicate a .dll.config to the library and the other is to embed the dll's configuration in the process.exe.config.I'm having significant issues trying to implement either and I wondered if anyone has any good docs on this - there appears to be a shortage on the Net.
I'd like a separate .dll.config for each of the libraries if possible, but in a pinch, getting each of my libraries to read their own section of the process.exe.config will he right direction because I'm so close to rolling this application out but this stumbling block is causing me a significant headache.Edit: When I merge the configuration files, I start getting TypeInitializer exceptions when I initialize objects withing my libraries. This is likely just me being retarded, but does someone have a working example of a merged config file and some basic demonstrative code for reading it from multiple assemblies?
VS 2008 Handling Exceptions In Referenced Class Libraries
Jun 8, 2010i created a Class library (.dll) and loaded it as reference into a main project. In the code for the class i've handled exceptions using try..catch subs, however when debugging the main project exceptions that are handled in the DLL still get thrown! (the class ".vb" file gets loaded into the debugger and the line of the exception shows up)
Up till now i've found it useful that when an unhandled error occurs in the imported reference, it shows up in the main project with tracing back to the referenced class. But i dont want the exceptions that are handled in the reference class to be thrown when debugging the main project!
As you can see the exception thrown was handled with try...catch this class exception.vb belongs to the project that created the class library (.DLL that i referenced). i didnt even load the project that built the reference so it amazes me that it could find the coding class to begin with.
Threading - Access A Value Of A Control Within A Form Outside Of The Form Class
Jun 3, 2009What is the best way to access a value of a control within a form outside of the form class. I have a lot of functions defined in a module, one of these functions requires a series of values from controls in my main form such as the FolderBrowserDialog.SelectedPath element. I understand that these cannot be accessed in the format form.FolderBrowserDialog1.SelectedPath and that they need to be accessed using a delegate. This is the part I am stuck with.
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Control Form With Class Library
Oct 27, 2009I have trouble to control my form using with the class library. I am trying to set the form to maximum and set the form border to none. There is an error in come to the end of the statement next to the test.myform.[code]The error I have received is Object reference not set to an instance of an object.
View 6 RepliesControl Update Not Consistent On Form In Class
Nov 10, 2011I have a class that gets 2 label controls passed to it byRef. So, while my class is being executed I want the labels on the form to be updated. This works Most of the time, but sometimes it seems the form stops updating till the class has finished its process...below is some of the code that I am using to do this...
Public Class clsImportWWDB
Implements IDisposable
Private strSearchTag As String = "" 'Last Tagname of value scanned
Private intMeldsFound As Int32 = 0 'Number of Alarm Messages Found
Private _MyForm As Windows.Forms.Form
Private _FileName As String
[Code] .....
Declare A WithEvents Class In Windows Form Designer Which Is Not Control Base
Jun 4, 2011I am making a TabStrip control to hold a number of tabs just like TabControl, but only with the tabs, no page. The control has a "Tabs Collection", which stores a list of "Tab" class. "Tab" is not inherited from Control, but each tab has its events. So when the user add a "Tab" in the "Tabs Collection", each "Tab" instance should have a (Name) identifier, which user can access it in the code, and with WithEvents keyword so users can add event handlers to each "Tab". The expected out come should similar to this:
Friend TabStrip1 As TabStrip
Friend WithEvents t1 As Tab
...
Me.TabStrip1.Tabs.Add(t1)
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Form Inheritance - Error1Base Class 'MenuStrip' Specified For Class 'Lesson2' Cannot Be Different From The Base Class
Apr 15, 2010I have put this code in the global form Inherits System.Windows.Forms.Form. And then in the form that will inherit this from the global Inherits MenuStrip. "MenuStrip" is what the global form is called. But keep getting this error: Error1Base class 'MenuStrip' specified for class 'Lesson2' cannot be different from the base class 'System.Windows.Forms.Form' of one of its other partial types.
View 5 Replies.NET Multithreading / Calling Invoke On A UI Control From A Class In A Separate Class File?
May 13, 2011Example:
Two files - TestClass.vb, myForm.vb
TestClass.vb looks as follows:
Imports System.Threading
Public Class TestClass
Private myClassThread As New Thread(AddressOf StartMyClassThread)
[code]....
The result:Application runs, no errors or exceptions.Displayed is the listbox and the Start button.I press the start button and a msgbox says "Not Invoked" as expected and upon clicking OK to that msgbox "Start Button Pressed" is added to the Output listbox control.Immediately following that the msgbox pops up again and says "Not Invoked". I was expecting "Invoked" as a separate thread is trying to use the Output listbox control.Of course this results in the Output.Items.Add being attempted which results in no visible result as the thread is not allowed to directly update the UI control.
VS 2008 Component Class - Drag And Drop Control Onto New Class
Nov 21, 2009I am searching for the Component Class. When I go to "Add New Item" ,in my project their is no Component Class Item in VS 2008. I would like to Drag and Drop control onto my new class and I can't see how to do this ?
View 6 RepliesUser Control Which Works As A Login Control Using Windows Class Library
Feb 12, 2009I Need Build a user control which works as a Login control using Windows Class Library or Component Template:The user control returns the user name and the password It means that the control has minimum two ReadOnly Property procedures. You let the user of your control (he/she which uses your control in his/her software) to set the background colour of the two labels. Create a Windows application to test your control.
View 10 RepliesInheritance A Classic React Class Into A User Control To Add The Hight And Width Properties To The Control?
Feb 28, 2011I tried it and get an error but maybe I'm tring the wrong way. Can a usercontrol inherate an application defined class ie.. could you inheritance a classic rect class into a user control to add the hight and width properties to the control without having to do all the coding all over again? Currently I just declair a private instance of the class within the control and then encapsalate. It would be nice if I could just inherit all the functionality of my classes into controls designed to implament the classes.
View 1 RepliesCreate A New Class That Inherits From The Base Form Class And Define A New() Method With Parameters?
Oct 1, 2008I've been creating short test apps repeatedly to try to understand some of the concepts in VB.NET.For the most part it has been illuminating.I read Bucky's .NET knowlegebase tutorial on passing objects as parameters to newly created forms. He shows how to create a new class that inherits from the base form class and define a New() method with parameters Extending the concept I thought about doing the same thing with a form that was created at design-time (In this case Form2).
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VS 2010 - Et The ATM Class To Instantiate On The Form Class?
Nov 22, 2011I'm trying to get the ATM Class to Instantiate on the Form class.
[code]...
ISSUE = " 'ThisATM' is used before it has been assigned a value. A Null reference exception could result at runtime"
The Other problem i am having is with a class in the program called CardReader. What am i supposed to type to let the code below be able to "read" the read function on the Form1?
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Class Diagram - Called Control Fields Not Object In The Class Diagram ?
Nov 11, 2011if I put controls on form1 like button,textbox....etcwhy called this control fields not object in the class diagram ?
View 7 RepliesControl XXX Was Not A Loaded Control Class
Oct 13, 2010I am using .ocx in my project. I made some changes into .ocx. and compiled it. Afterthat I unregistered the old one and register the new .ocx. I changed reference from my project as well. This .ocx is related to display of new form so whenever i m trying to load new form it taking to much time. In .log file of my project i m getting error "control XXX was not a loaded control class"
It seems like its not finding the correct .ocx at the beginning. But afterthat it works fine but very slow.
C# - Using Two .NET Libraries With The Same Namespace?
Apr 11, 2009I'm currently maintaining some old code for a company. As it would happen, the current app I'm modifying uses an older version of the in-house library (we'll call this Lib1.dll). They also have a new version of the library called Lib2.dll that improves upon the previous library in many ways.
Unfortunately, Lib2 is not backward compatible with Lib1. What's worse is that they both use the same namespace Product.Common.
How do I use Lib2 and Lib1 in the same project? Right now if I add references to both of them, VS tells me that certain classes are ambiguous (which makes sense, since they using the same namespace).
Basically, I need something like:
Imports Lib1:Product.Common.Class
I'm using VB.NET 1.1.
Raw .net Framework Libraries?
Jun 30, 2011I need to access the raw .NET framework libraries ( such as System ) and etc. All of the libraries that are required by .NET programs to run. Is there a specific place on my harddrive that I can find them all?
View 1 RepliesDotNET Native Can Use Instead Of One Of These COM Libraries?
Nov 1, 2010I'm looking at a small remoting project in VB.NET. Initial research turns up references to msrdp.ocx which my Windows 7 Ult system doesn't have; a filesystem search on the same platform turns up MsRdpWebAccess.dll which doesn't appear to be well documented; finally hunting through COM references in Visual Studio turns up rdpencom.dll labeled "rdpcomapi 1.0 Type Library" which seems to be best documented via personal developer blogs (which isn't encouraging but is a lot better than other options).
My goal is a lightweight remoting application I can deploy to Windows 2000 Client/Server, WinXP x86/x64, Win2k3 Server, Vista x86/64, and Win2k8 Server.Is there anything DotNET Native I can use instead of one of these COM libraries? Is one of these COM libraries better for the job overall than others; and then am I going to have platform-specific compatibility issues if I don't provide support for more than 1 of them in my app?
Free Libraries For The .NET Framework?
Jul 27, 2009I was wondering if you could tell me of any free libraries for the .NET framework (2.0) that you know of that can convert a PDF file to HTML or XML. I've seen several components that do the opposite, meaning HMTL to PDF, but not what I need. Essentially, I need the html version of my PDFs because I need to search through the text. Also, the Adobe Acrobat SDK is not an option for me, even though I know it has the exact functionality I need.
View 3 RepliesProgram / C# X86 Disassembler Libraries?
May 20, 2009I'm looking for a library that will disassemble x86 code into some sort of object model that I can then use to write routines that analyze the code. I'm not interested in a library that converts x86 code to text disassembly--I've found more than a few of those, but they're not that useful since I want to do some work on top of the code that I disassemble. Oh, and I'd like it to be .Net code (VB or C# preferable).Program / C# x86 disassembler libraries?
View 2 RepliesCompress Audio File Wmv With Net Libraries To Wma Or Mp3?
Feb 14, 2011how do you compress audio file wmv with net libraries to wma MP3?
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