C# - Stepping Through VB6 COM Object Wrapped By .NET Class?
Jun 16, 2011
I have a VB6 object that is wrapped by a .NET class. As far as I recall it is possible to step through a VB6 object (compiled as a library) by simply running the VB6 library and inserting a breakpoint at the desired location.However this does not appear to be working in my case. I have attempted to recompile the VB6 object and re-reference it in my .NET project but this doesn't appear to have helped. there a way to insert Debugger.Launch() equivalent into a VB6 project?
I'm using VB.NET but this question applies to any OO language - Java, C# etc. I've tagged the question with Java and C# but will remove if not considered appropriate. I have an entity class ClassAAA that contains a reference to ClassBBB as one of it's attributes:
Public Class ClassAAA Private Property _blah As ClassBBB = Nothing Private Property _somethingElse As String Private Property _anotherthing As String ' Make it private so cannot instantiate class without supplying ClassBBB ' [Code] .....
I could make the ClassBBB reference public (or supply a public getter method) but that would expose the inner workings of ClassAAA. What I'm thinking of doing is making the ClassBBB reference Friend so that it is only visible in the assembly i.e. a data layer and is not visible to client projects. But this stills feel like I'm exposing the inner workings of the class.
I am somewhat new to object oriented programming and am attempting to flatten a Linq object hierarchy by using a shim class.how to initalize a derived class with property values from a base class?I have two objects, a base object with about 100 properties, and a derived object which inherits from the base object and adds a few additional properties beyond those of the base object. My simple constructor creates the derived object, but I am looking for a way to initialize the derived object properties with values from the base object.Right now I am using reflection to iterate over the properties individually and I suspect there may be a better way. The following example shows my shim class constructor for the derived class, and two properties:
newProperty1 - a new string property of the derived class
flattenedProperty2 - a new string property of the derived class, copied from a 2nd-level object of the base class
Code example:
Public Class derivedObj Inherits baseObj Private _newProperty1 As String[code].......
Is this the correct constructor approach to flatten the object hierarchy using a shim class? My second question relates to initialization of properties in the derived class. The constructor above creates the derived object, but what is the best way to initialize the derived object properties with values from the base object? The following code uses reflection to iterate over the properties individually, but I suspect there may be a better way.
Code example:
' property names are in the string array fieldNames
'baseObjQuery is an ienumerable of baseObj
'derivedObjList is a list of derivedObj[code].....
Is there a simple way to initialize values for the properties in the derived object based upon the values of the common properties in the base object?
I have some classes, BsfciFile and StudyFlashCard. Bsfci is the extension to which I save my set of flashcards in an INI format. I am currently working to transform my code from using Windows API calls to access the INI to using a IniFile class that I found on the internet. I would like the BsfciFile to have a Array of StudyFlashCard objects, but I would like the StudyFlashCard class to use the IniFile class object contained in the BsfciFile class. I can pass the IniFile from the BsfciFile class to the constructor for the StudyFlashCard class, but I want it to modify the same IniFile as the BsfciFile class has later on.
I am trying to create an list or an array of a class.Here is my "Ingredient" class that I am trying to create a list of:[code]In my "recipe" class, I am want to create a list (or array) and I am drawing a big blank on how to do it. Can anyone point me in the right direction?
dim myCollection as new Specialized.StringCollection dim myFoundThings as new ArrayList dim index as Integer dim newResultMemberName as String
[code]....
This is part of some code that will run without user interaction once it's spinning away, and I need to create a unique object from some items found in a StringCollection, naming the objects using information found in the strings stored in that StringCollection.
i've created bunch of classes. i have webservices which reference these classes and contains the classes as parameters and return objects.when i call the weservice, i have to convert the class to the webservice object else i can type conversion error.is there a generic way to convert between these types without having to assign the values by hand?
for example
public class person fname as string lname as string end class
[code]....
i would liek ot be able to call the web service and return the data type back and have a generic coversion instead of as above in stead of:
dim wsPerson as wsReference.Person = ws.getperson()
I have a class in which some of the fields are also classes.
I can put values in the "normal" properties, but in the others when o try to assign values it gives the: "Object reference not set to an instance of an object"
But the code compiles fine.
dados_Defenicao = New ServiceReference1.draftClaimEntryDefinition dados_Defenicao.arCode = "123" dados_Defenicao.claimMarket.warrantyType = "w" - Here it gives the error
If we are within the derived class then ofcource we can use MyBase keyword to access base class's object reference . That's fine , how can we take that base class's object reference outside that derived class's definition.My following code will explain what i want . Actually that is giving error right now, but it is explaining my requirement .
Public Class Base Public x As String End Class
[code]....
Actually there is error in ReadOnly Property BaseReference's Getter . Error is "Error 1 'MyBase' must be followed by '.' and an identifier. " how can i get base class object reference in Main method ?
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?
I have a Parent Class Called Fuselage that containsfour child classes called Forebody, CenterBody, AftBody, and CrossSection. CrossSection classcontains objects common to Forebody, CenterBody, and Aftbody (example: width). How do I access thewidth property in CrossSection from within the classForebody?
Public Class Fuselage Dim Forebody As ClsSection Dim Centerbody As ClsSection
I'm trying to change the font of a textbox when it is resized, in order to show the fittest font size, but mantaining the original text's line count. But I haven't achieved to know if lines is wrapped, to decrease the font size.
I am developing an IT Asset Tracking application using VB 2005 and SQL Server 2005 Express edition. Will I need to create classes to represent objects such as Computers, Printers, Scanners/Faxes, Contracts, Purchase Orders etc or are there any other approaches.For example, if I am correct, I will have a class called Computer and its properties will include Make,Model,CPU,Hard Disk,Memory etc. Is this the right approach.
Computers can be split up into Desktop PC's, Servers and Notebooks. Would I have to create separate classes for these as well or would they be ok under the Computer class.Once I create an object from the class, how can I use the object to interact with the SQL db.I am a beginner to VB.NET 2005 therefore I am slowly getting to grips with OOP.
I'm writing a class library in .NET that wraps a COM dll and exposes specific functionality to be consumed by other .NET code. The COM library has several enumerations defined and I've used some of the enum types as parameters like so:
//C# public void TransactionTypeSetByEnum(COMComponent.TransactionType transType) { this.TransactionType = transType
I have a Listview and each ListviewItem has an image with a height of 90 pixels. This means that the Listview rows are also about 90 pixels high, enough room to show the subitems text word wrapped.
The only way to wordwrap text is to draw it myself, as far as I know, because the Listview has no property for that. I'm using the code below, which works fine, except I'm having some problems with centering the text vertically.
I have a form in a page that is popped up using the jquery dialog thus:using jquery ui 1.8.9 and jquery 1.4.4.[code] so this div dialogs up on a button click, but when i try to submit this popped up form with the clicking the butMove appointment just does nothing at all if i move it out of the popup it does fire is this because the popup doesnt simply show and centre the styled div?presumably i can get around this somehow?
I am trying to return a json string via jQuery of an object using the following function. The problem I do not seem to be able to overcome is my json result comes out the other end wrapped in double quotes.
bare with me during this silly example. :-) Let's say I have a class like this:
Public Class Animal Public iLegs as int32 ' Number of legs Public bWings as Boolean ' Wings? Yes/No End Class
And another class that inherits the "Animal" class and adds one more property:
Public Class ScaryAnimal Inherits Animal Public iScariness as int32 ' 0-100, how scary is it? End Class
Now, if I have an instance of "Animal" with some values in it, and I decide I want to cast it to a ScaryAnimal for some reason, how do I do that without having to create a new instance of "ScaryAnimal" and copy each property value?Basically I'm looking for a way to do this, without having to write the lines marked with '*** below:
I'm creating a console application that uses System.Management to get WMI information about a selected computer.
The code below executes when the user enters the number 4 to see hardware information about the computer in question. Included is the function called to access the WMI Namespace's object collection[code]...
have been experimenting with new algorithms for some existing classes, do it by copy and pasting code into newly created classes, adding the references then trying to adapt the unit tests till thy pass.Am stuck in a case where the code in the newly created class makes a call to another class (shared by the newly created class and the existing working class) and the IDE won't allow me to step into the code, showing "external code" on the call stack and mysteriously stopping on a non-breakpointed line in the code it wouldn't step into...a line that immediately precedes an error-generating line which i'm trying to trace and debug. In addition the working existing class makes the same call with no error and the IDE allows normal stepping into it
After reading through several forums, which suggested that I should add a referenced DLL (whose source cod I have) to solution as an added project, I am unable to step through the code of the referenced DLL that generates an error. I also turned off"Enable just my code" from Tools->Options-> Debugging. However, I am still not able to step into the referenced DLL's code I added the pdb file and the referenced dll to the bin/Debug folder of the original code that I am working on
Having a bit of a headache with stepping through a program.
I changed the Keyboard to VB6 in Tools > Options with the same result.
He's what happens.
* I put a break point on Line2. The app stops there and so far so good. * I press F8 or F10 or F11 (tried everything) and the app returns an error on line8 instead of stepping to Line3.
The error is obvious, but I want to step through my program 1 at a time.
I am quite new to VB and have a Problem. I need to step through all IE entities and extract the html source of a tab where some conditions are met.
Private Sub TabPage1_Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TabValues.Click, TabPage1.Enter, TabPage2.Enter Dim err = "", status As String = ""
