Why Is The VBCodeProvider.Parse Method In VS2005 Not Implemented
Mar 17, 2011Why is the VBCodeProvider.Parse method in VS2005 not implemented? Is there an equivalent function?
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.show Method Or Operation Is Not Implemented?
Jul 18, 2012I am programming an ordering site in VB.Net and ASP.Net.I start with the main ordering form and the idea is that the user will select a subject from the drop down list and then click a button to retrieve all modules associated with that subject in a second form (smaller than the main order form).I have created the second form (frm2) and added content to it.In the main form inside the method which represents the button being clicked, I have coded the following:
Dim frm As New frm2()
frm.show()
I then get an error that show has not been declared and so I create a method stub for it.I run the program and when I click on the button I get the following error:'method or operation is not implemented.'This points to the following line in the 2nd form:
Sub show()
Throw New NotImplementedException
End Sub
what I need to put inside this method to make my second form load when the button is clicked?
VS 2008 IPodServiceLib - Method Or Operation Is Not Implemented?
Jun 23, 2009im messing around with this trying to get into my ipod touch the code i found here and there on the net doesnt quite work..Imports IpodServiceLib
Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
INotifyPropertyChanged.PropertyChanged Implemented And Not Implemented; Visual Studio Build Error
Jan 2, 2012I'm seeing a strange build bug a lot. Sometimes after typing some code we receive the following build error.
Class 'clsX' must implement 'Event PropertyChanged(sender As Object, e As PropertyChangedEventArgs)' for interface System.ComponentModel.INotifyPropertyChanged'.
And
'PropertyChanged' cannot implement 'PropertyChanged' because there is no matching event on interface 'System.ComponentModel.INotifyPropertyChanged'.
Those error should never go together! Usually we can just ignore the exception and build the solution but often enough this bug stops our build. (this happens a lot using Edit and Continue which is annoying)Removing the PropertyChanged event and retyping the same code! sometimes fixes this.We're using a code generator that causes this error to surface but just editing some files manually triggers this exception too. This error occur's on multiple machines using various setups.
"Method Not Implemented" - Curve Clear?
Jul 17, 2010I have two forms, a main display form with a Zedgraph Pane on it and a second form with a single ComboBox control, opened by a button click on the first form and having its ComboBox filled by the Labels of the curves currently being shown by the Zedgraph pane.The code below seeks to remove the curve selected in the ComboBox by clearing its points, but on the CurveList.Clear line, I always get a "Method not Implemented" error.
Private Sub rmvCurve(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles chnlSelectRmv.SelectedIndexChanged
Dim curLabel As String
[code].....
LINQ - Using "Build A Program Now" Ebook - Error "The Method Or Operation Is Not Implemented"
Jun 12, 2009I am new to Visual Basic 2008 and NET and am using the Visual Studio 2008 Express editions. I recently downloaded the ebook "Build a Program Now!" for VB and have been working through it without problem until te end of the penultimate chapter 8.
Part of the exercise includes the following code:
Private Sub tsbFilterByMake_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tsbFilterByMake.Click
Dim filteredByMake = From Listing In Me.CarTrackerDataSet.Listing _
[CODE].........
Whenever I attempt to execute this code, I get the error "The method or operation is not implemented" on the last line before the End Sub. This suprised me because when I typed in the f after the = sign, Intellisense offered me the single choice of the required filteredByMake, suggesting to me (in my probable naivety) that it recognised it as a syntactically corrrect choice. This is not down to an error on my part somewhere in attempting the exercise as I get the same result trying to run the Complete code solution that accompanies the book. I have successfully replaced this and a similar Sub with SQL queries on the datasets in question, why the above code does not work and what can be done to correct it.
How To Use VBCodeProvider And Codedom
Feb 4, 2009Does microsoft have documentation on how to use VBCodeProvider and codedom or any .net book that provide detail on how to use it. i tried to use it to compile program on the fly but never work. It always gives me an errors such as path to the string or file not found.
View 11 RepliesCompile AssemblyInfo.vb Using VBCODEPROVIDER On The Fly?
Feb 27, 2009i tried to compile assemblyInfo.vb with my source code so that i can i have the information with the output.The project was compiled without the AssemblyInfo.vb. So please, if you know the error from the code below let me know.Dim source2 as string=Application.StartupPath & "assemblyInfo.vb"Dim source1 as string=Application.StartupPath & "Form1.vb"cp.CompilerOptions = source1 source2/target:winexe"
View 3 RepliesCompiling DLL For Silverlight 3.0 With VBCodeProvider?
Oct 14, 2009I am having difficulty dynamically compiling a DLL for use with Silverlight 3.0. My goal is to take some rules provided by my users and compile them into a DLL for custom editing purposes.I created a Silverlight class library project in Visual Studio to get the command line for compiling a Silverlight class library. Based on that and the many examples for compiling VB using the VBCodeProvider, I came up with the following method for comping code in a string to a DLL:
Public Function Compile(ByVal code As String, ByVal assemblyName As String) As CompilerResults
' set the compiler parameters
Dim parameters As CompilerParameters = New CompilerParameters()
parameters.OutputAssembly = assemblyName
[code]....
This does not compile with the following error:vbc : Command line (0,0) : error BC2010: compilation failed : 'Member 'IsNumeric' cannot be found in class 'Microsoft.VisualBasic.Information'. This condition is usually the result of a mismatched 'Microsoft.VisualBasic.dll'.'
I've looked and, in fact, the Silverlight version of the class Microsoft.VisualBasic.Information does not contain member IsNumeric. So I appear to be picking up the correct libraries using the sdkpath option. But I have no idea why I'm trying to call that method in the first place.how to successfully compile source code dynamically into a Silverlight compatible class library?
VBCodeProvider.CreateParser() Returns Nothing?
Oct 13, 2010Here is my code
Dim provider = New Microsoft.VisualBasic.VBCodeProvider()
Dim parser = provider.CreateParser()
parser is always Nothing. I know the Method CreateParser is obsoleted. How to create a VB code parser?
C# - VBCodeProvider Not Honoring OptionInfer In ProviderOptions?
Jun 23, 2009I'm trying to dynamically compile some VB code in my C# project and I'm running into an issue with the VBCodeProvider. It doesn't seem to be honoring the OptionInfer flag that I'm putting in the providerOptions Dictionary.
My code looks like this:
var providerOptions = new Dictionary<string, string>();
providerOptions.Add("CompilerVersion", "v3.5");
providerOptions.Add("OptionInfer", "True");
var provider = new VBCodeProvider(providerOptions);
I set my CompilerParameters.TreatWarningsAsErrors to True, and I get the following error:
Variable declaration without an 'As'clause; type of Object assumed. However, all is well when I put the "Option Infer On" text at the top of my dynamic source code. Am I using the wrong providerOptions key or value? Is there some other setting somewhere else?
CodeDOM, VBCodeProvider And MustOverride Property?
May 27, 2007I'm having trouble with CodeDOM and the VBCodeProvider.I want to generate an abstract class with a MustOverride ReadOnly Property.
View 3 RepliesDynamically Referenced Assemblies And VBCodeProvider?
Mar 17, 2010We have a large application that implements "scripting" (i.e, dynamically compiled user code that can include user-defined .dll references).
View 5 RepliesVBCodeProvider Fails - Exit Code 128 - No Output
Apr 30, 2011On our software factory grid servers, calling VBCodeProvider.CompileAssemblyFromSource randomly fails.
[Code]...
What does the 128 error code mean ? The version of vbc.exe used is the one in the .NET 2 (SP2) folder. Forcing the compiler to work in a new dedicated temp directory does not help (we update TMP and TEMP env variable on runtime, we checked that each vbc use a dedicated temporary folder based on process id and some static counter)
[Code]...
Dynamically Referenced Assemblies And VBCodeProvider .net 2.0, Visual Studio 2008?
Apr 1, 2010I just realized I used my non-partner account the first time, and I want to make sure I receive priority support. In addition, I found out more about my problem and made a much clearer example.Basically I'm having problems getting a dynamically compiled vb.net "script" to find external references (even though they are being added by fully qualified path). I also tried adding /libpath to my compiler options, and still it cannot find the assemblies.[URL]..
And here is a reference to my original post (with not-so-easy to understand code snippets):[URL]..
C# - Parse An Expression And Retrieve A Parse Tree?
Jun 8, 2012I just want to parse simple expressions like IIF(FVAL(PFC) = TRUE, (IIF((ORGVAL(BAS, "2012/12/31") + ORGVAL(DA)) < 6500, (FVAL(BAS) + FVAL(DA)) * 12%, 780)), 0)`After parsing this I should be able to know what functions contains what parameters.
[Code]...
I'm stuck with .Net Framework 2.0, so no Linq or lambda expression goodies for me. Also I want to include the code in my custom library and not just reference it. Can anyone point me to some good library or code.
I just need to parse and not evaluate the expression and find what tokens are in use. After finding the tokens I need to change the expression string before parsing, like if the function ORGVAL is used then the parameter passed has has to be prefixed by an underscore. Like ORGVAL(BAS) will transform to ORGVAL(_BAS). Some functions can have tow parameters like ORGVAL(BAS, "2012/12/31") and this will transform to ORGVAL(_BAS, "2012/12/31")
NOTE: IF THERE ARE OTHER WAYS OF DOING IT PLEASE LET ME KNOW. I WOULD LOVE TO AVOID A PARSER AND LEXER.
C# - How Is Hash Implemented In .NET
Aug 3, 2010[Code]...
The garbage collector in .NET moves objects, so the object's address is not stable. How is Object's GetHashCode() method implemented?
How Can The UrlNormalizer Be Implemented
Nov 27, 2009I found the line in a program that references UrlNormalizerUtil.UrlNormalizer to validate a url. It calls it from a GeneralPurposeUtilities file which is added to the project properties in references as a .dll file.
My question is: where does this file come from? Is is self coded or from some library? how else can the UrlNormalizer be implemented?
.net - Implemented Interface Needs Casting?
Jan 12, 2011I have an Entity class which Implements IWeightable:
Public Interface IWeightable
Property WeightState As WeightState
End Interface
I have a WeightCalculator class:
Public Class WeightsCalculator
Public Sub New(...)
..
End Sub
Why can I not do wc.Calculate(entities)? I receive:
Unable to cast object of type
'System.Collections.Generic.List1[mynameSpace.Entity]'
to type
'System.Collections.Generic.IList1[myNamespace.IWeightable]'.
If Entity implements IWeightable why is this not possible?
Have Implemented IEquatable Correctly?
Mar 18, 2012I saw the question posed here: Have I implemented Equals()/GetHashCode() correctly? but my c# is not as strong, and I am unfimiliar with IEquatable enough that I would like to see this in VB.NET if possible please.My example code (The class will eventually use INotifyPropertyChanged when I get there):[code]
View 2 RepliesWhy Would Compiler Think An Interface Isn't Implemented When It Is
Apr 9, 2010I've boxed in red. The class displayed here does implement INotifyPropertyChanged, but the VB compiler seems to think that the PropertyChanged event as declared does not match the signature of INotifyPropertyChanged.PropertyChanged.Here I've selected the offending line of code. Between this and the next screenshot I literally just cut and paste the exact same line back into the file (i.e., I hit Ctrl + X followed by Ctrl + V).I have this happen sometimes, particularly with the INotifyPropertyChanged interface in my experience but I have no idea if the problem is limited to that single interface (which would seem bizarre) or not.Let's say I have some code set up like this. There's an interface with a single event. A class implements that interface. It includes the event. [code] Every now and then, when I build my project, the compiler will suddenly start acting like the above code is broken. It will report that the Person class does not implement INotifyPropertyChanged because it doesn't have a PropertyChanged event; or it will say the PropertyChanged event can't implement INotifyPropertyChanged.PropertyChanged because their signatures don't match.This is weird enough as it is, but here's the weirdest part: if I just cut out the line starting with Event PropertyChanged and then paste it back in, the error goes away. The project builds.
View 2 RepliesXML Embedded Expressions Implemented?
Sep 4, 2009Can someone explain the nuts and bolts of what's really going on under the covers?
View 1 RepliesPrivate Set In Auto-Implemented Properties
Jun 11, 2009I'm going to resolve this bug as "Postponed" as we won't have time to do it for VS2010, but I'm definitely interested in your feedback going forward.
View 6 RepliesVB10, Auto-Implemented Properties And COM?
Nov 30, 2010I recently finished a class that we're using to tie Access to some WCF Services. Of course this means that the .Net classes (and all of their properties) need to be visible to COM. Given that I'm using VB10 and the Contact class has about 20 properties I went ahead and used auto-implementing properties.Much to my surprise, the properties were not accessible from within VBA in Access. I tried marking the properties as ComVisible (which I didn't have to do in the past with standard properties) and it still didn't work. After changing the auto properties to standard properties everything worked.
Became
Public Property FirstName As String
Get
[code].....
Strongly-typed Generic Method Invokes Its Argument's Base Class Method Instead Of A Shadowed Method In T?
Oct 19, 2010Consider a MyForm class that contains a shadowed implementation of Show(). It also contains a CreateForm() method, which accepts an instance of the form and calls the shadowed sub:
[Code]....
Interface Be Implemented Across An Aggregate/composite Class In .net?
Mar 30, 2010VB.NET .NET 3.5 I have an aggregate class called Package as part of a shipping system. Package contains another class, BoxType . BoxType contains information about the box used to ship the package, such as length, width, etc. of the Box.
Package has a method called GetShippingRates. This method calls a separate helper class, ShipRater, and passes the Package itself as an argument. ShipRater examines the Package as well as the BoxType, and returns a list of possible shipping rates/methods.
What I would like to do is construct an Interface, IRateable, that would be supplied to the helper class ShipRater. So instead of:
[Code]...
However, ShipRater requires information from both the Package and its aggregate, BoxType. If I write an interface IRateable, then how can I use the BoxType properties to implement part of the Interface?
ReadOnly Property ListView In ListViewItem - How Is Implemented
Nov 30, 2009how ListView pointer is stored/removed at ReadOnly Property ListView in ListViewItem? How is it implemented? I know ListViewItems are stored in ListViewItemCollection which has constructor New(owner as ListView) but I dont know how pointer to ListView is add/remove in ReadOnly Property in ListViewItem...
View 1 RepliesVS 2010 Comments On Strategy Pattern Implemented
May 18, 2012a debate has been sparked here about the use of the strategy pattern in my classes.
Basically, I have a 'Shape' object that is an interface 'IShape'. We have 'Circle', 'Rectangle' and 'Elongated' that are the concrete classes that must implement the IShape interface.
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VS 2010 Dll That Is Implemented By A Class With A Default Constructor
Dec 27, 2010I have a base class which must be overriden. This base class sits in one dll shared by all. The derived classes will each be in their own dll such that the addition of a new derived class can be done by distributing a new dll. The set of dlls, and therefore the set of derived classes, will be discovered by the main program on startup. That's all pretty straightforward. The problem is that the main program needs to be able to query a database to figure out which type of derived class it needs, then create a class of that type. Naturally, it can't know which types will be available ahead of time because even I don't know that. The program has to be dynamically extensible.The obvious way to do this is to have an interface in the dll that is implemented by a class with a default constructor. The sole purpose of that class would be to return an object of the type (one of the derived types) defined in that dll. The derived types can't really be this class, because they can't have a default constructor since the base class doesn't have a default constructor, and the derived class can't make up the arguments that the base class constructor needs.
So basically, each dll that houses a derived class would also house a simple class that implemented an interface for the sole purpose of creating that particular derived class. The main program would examine the dll to find a class that implemented the interface, and once it found one, it could ask it what type of class it created, or it could ask it to create an instance of that class. It seems like there ought to be an easier way to dynamically add new classes to the project. It seems like the derived class ought to be able to tell the main project what type it was. This could be done, except that the derived class would have to exist before any of its methods could be called unless the methods were shared. Since you can't have a shared method in an interface, the interface itself would make no sense at that point, in which case I would need to discover whether the class in the dll derived from the base class in the second dll, just to figure out whether or not I wanted to create it. That's getting convoluted by now, so I guess I'll leave it there. The basic point is that the base class is known to the main program from a common dll. The number and types of derived classes can't be known at this time, so the program has to be able to discover them dynamically. Each derived class will sit in its own dll (or there could be more than one in a dll), and has to be discovered, and instances created, as needed, by the main program.
.NET Auto-Implemented Properties - Compatibility Between VS2010 And VS2008?
Apr 29, 2011I am working on an ASP.NET project where I use VB.NET within Visual Studio 2010. Some of the other developers on the project are using Visual Studio 2008. We all check our code into single SVN repository. I would like to start using Auto-Implemented Properties within VB.NET ...
Property FirstName as String
instead of ...
Private FirstName as String
[code].....
My concern is that this could mess up things for those using VS2008. What would happen if someone using VS2008 needed to modify my class that made use of Auto-Implemented Properties? I am assuming that since everything compiles down to IL code then there would be no issue in binary compatibility. Though a problem would arise when editing source.