Constructor That The Current Object Init Has Failed?
Jan 25, 2012I have a custom class with constructor, the class is setup such that it would legitly fail to init in some conditions. How do I return nothing?
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Error: MSDatasetGenerator Failed. Failed To Generate Code Object Reference Not Set To An Instance Of An Object
Jul 28, 2009I created a typed dataset a day or so ago, then I added a whole bunch of tableadapter/tables with some relationships etc... suddenly out of nowhere it decides my dataset "is not defined". everywhere in my code where i use this dataset now has an error. I tried not to pull out my hair and do a Clean then Rebuild solution... out of nowhere it just refuses to generate code. Object reference not set to an instance of an Object. It would be nice if it was my object so i could find it but it's not.
Curiously I also lost the little database icon on the dataset in the solution explorer.I can still open it in the designer and preview my queries etc... it just wont make the code. it's driving me insane. anyone got a solution?
Constructor String - Create An Object And Use The Object To Display All Methods
Sep 21, 2009Under component services, a COM+ component is used by the company, right-clicking it and choosing 'Activation' tab will show the 'constructor string' that is used for DB server connection by all applications. How can I access it the simplest way possible?
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.net - Using Extension Methods From Within An Object's Constructor?
Feb 8, 2010Consider the following:
Public Module Extensions
<Extension()> _
Public Sub Initialize(ByRef Target as SomeClass, ByVal SomeParam as Something )
[code].....
Why is Case 1 failing to initialize the object as expected?
Changing Object Reference In Constructor Parameter?
Oct 30, 2011I'm trying to change the reference of a variable passed from one form to another in the constructor of the recieveing form but after I've changed it the original reference still remains in the source form. Why is this and can I force it to accept the new reference?
View 12 RepliesSett Object Properties In Constructor Program?
Feb 9, 2010Is there something similar in VB.net to C# class constructors? For example:
StudentName student2 = new StudentName {FirstName = "Craig", LastName = "Playstead"};
Pass A Delegate Into A Constructor Of An Abstract Class From A Descendant's Constructor?
Feb 15, 2010I have an abstract class which requires a delegate to function. I pass the delegate into the constructor. Now that I have a non default constructor I need to call the abstract class's constructors from the concrete class which means that I need to use MyBase.New(...). I have included a quick example below.
Public MustInherit Class BaseClass
Public Delegate Sub WorkMethod()
Private _Work As WorkMethod
[code]....
I have tried to do this but I keep getting the following error: "Implicit reference to object under construction is not valid when calling another constructor".Can I not do what I am trying to do above? I initially had the delegate setup in its own setter method. But then I am creating a deceptive API because it does require a point to a method to work properly.
Getting Code Of An Object Is Executing Even When The Current Object Is Nothing?
Jan 19, 2012I stumbled upon the statement "If Me IsNot Nothing" several times. Often I find this in WinForms samples.I dont't get the sense or meaning of this line. "Me" refers to the current Object or Form, so if I am executing this line "Me" can't be Nothing. Or am I missing something here?Is there a way that Code of an Object is executing even when the current Object is Nothing?
View 12 RepliesWhy Is Constructor Call Valid Only As The First Statement In An Instance Constructor
Nov 2, 2009what's the rationale behind this limitation: Constructor call is valid only as the first statement in an instance constructor i want to pass an argument to my constructor which validates this argument and calls mybase.new according to this argument but it doesn't let me
example:
Public Class prob
Inherits System.ApplicationException
Public Sub New(ByVal problem As String, ByRef inner_exception As Exception)
[code]....
Failed To Initialize COM Object
Aug 21, 2011I have created a web application in ASP.NET using VB.NET as code behind file. I am using a COM object of ProvideX.Script class to connect to Sage MAS90 ERP. Everything was working fine in visual studio 2010. Now when I moved to the deployment phase, the problem gets started. I deployed my application in Windows Server 2008 in IIS7. When I run the application I get the following exception.[code]...
View 2 RepliesError - Method 'HasTitle' Of Object '_Chart' Failed
Mar 15, 2007With ActiveChart .HasTitle = True .ChartTitle.Characters.Text = "DIRECTIONS" .Axes(xlCategory, xlPrimary).HasTitle = True .Axes(xlCategory, xlPrimary).AxisTitle.Characters.Text = "DIR" .Axes(xlValue, xlPrimary).HasTitle = True .Axes(xlValue, xlPrimary).AxisTitle.Characters.Text = "DISTANCE" End With
View 2 RepliesMethod Of Object Failed Error While Opening Any Vbp File In VB 6.0?
Nov 10, 2010Whenever I open any VBP file in Visual Basic 6.0, I get Method '~' of object '~' failed error. After that project compiles without any error i.e I can create either EXE or DLL without any error. Originally, all files are Visual Basic 5.0 vbp files and we are converting Visual Basic 5.0 to Visual Basic 6.0. We will be converting to .Net after converting to VB6. Application uses microsoft access as data storage.I am running Windows XP on my machine. I have got .Net 3.5, Jet 3.5 Sp3, Microsoft Office 2003 installed on my machine.
View 8 RepliesInit Array Of Strings?
Jun 8, 2011 The problem I'm having is that it seems like strings have to be initialized differently than other types and I don't know what I'm doing wrong.
Public Class Class1
Private intNum() As Integer
Private dateString() As String
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Sub Called On Program Init?
Jul 20, 2009I have an event callback that I created to respond to the value change of a numeric control. For some reason this sub is called event before my first Frm_Load submethod is called. Grrrr...why is this sub being called first before anything else?? The event passed appears to be "Empty".
View 2 RepliesAccess To Object Passed ByRef In The Constructor Of A Class Through Another Part Of The Class?
Aug 18, 2009I 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.
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Run-time Error '5200' Method 'endMessage' Of Object 'ISoapConnector' Failed
Jul 14, 2009Run-time error '5200' Method 'endMessage' of object 'ISoapConnector' failed
Dim Serializer As SoapSerializer
Dim Connector As SoapConnector
Dim Reader As SoapReader
Set Connector = New HttpConnector
[code]....
VS 2010 Init Structure Members Upon Creation?
Jul 15, 2011how you init a variable when it is created by assigning the value on the same line in which it is declared. Is there a way to do this with members of a structure?
View 4 RepliesGet The Index Of The Current Object?
Jul 15, 2009I am trying to figure out how I can get the Index of the Current Object in Object that Implements IEnumerable / IEnumerator. I am not real familiar with the IEnumerator / IEnumerable interfaces so a coe example would be helpful. I looked here [URL] But I am lost. I see something on GetHashCode for the Current Object but have no idea - as I am not familiar with hashcodes either.
View 4 RepliesAfter Using Init Method Masterpage Design Time View Is Broken?
Aug 3, 2011I am using asp.net 4, .net 4 and masterpages. I added in the following code to my child page
Private Sub FoodChain_Init(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Init
MyBase.OnInit(e)
PopulateDropdowns()
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Asp.net - List Of Object In Httpcontext.current.cache
Jul 6, 2009Is there a way to look through the cache for all objects in the cache? I'm dynamically creating objects and I need to periodically go through the list to purge out objects I'm no longer using.
View 6 RepliesOperation Is Not Valid Due The Current State Of The Object
Mar 15, 2012During Loading of form I call connectpaybox to show the list in the combobox, but after that it will result in the error "Operation is not valid due the current state of the object"
but the combobox items that was taken from the database shows. I tried
"select CAGECOST from CAGETYPE where CAGENAME like 'Normal'"
where Normal is one of the items in cagename and it works.
Private Sub Paybox_Load(ByVal sender As System.Object, ByVal e As
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Declare Properties/Events Such As IsPostBack/Init On An Interface That A User Control Will Implement?
May 2, 2012I'm having trouble porting some .NET2-era C# to .NET2-era VB.NET. Specifically, I am trying to define an interface that an ASP.NET user control will implement.(For background, I am trying to re-implement Phil Haack's Model-View-Presenter example from several years ago: http://haacked.com/archive/2006/08/09/ASP.NETSupervisingControllerModelViewPresenterFromSchematicToUnitTestsToCode.aspx)
The C# interface I'm working from defines properties and events (IsPostBack, Load) that are already implemented by the base control.However, VB.NET is forcing me to explicitly implement these properties/events in the user control (Public Property IsPostBack() As Boolean Implements IView.IsPostBack...). I'd like to just define these in the interface and not have to do anything special in the code-behind of the implementing user control.I'm assuming that I can do this in VB.NET, I just don't know how. I've spent all sorts of time googling/bing-ing, and haven't come up with the answer.
Oracle Operation Is Not Valid Due To The Current State Of The Object?
Apr 18, 2011Ok, i am really in need of finding a way to do this via a string to clob instead of using the update query to to do all.
Dim theXMLCode As OracleClob
Dim OracleConnection2 As New OracleConnection()
Dim dr2 As OracleDataReader
[code].....
VS 2005 : Get The Current Web Page's Source In .net's Webbrowser Object?
Mar 26, 2009In VS2005, how could you get the current web page's source in VB.net's webbrowser object? I need to load a webpage up, and then grab everything out of the header and body tags, and then I want to replace some text inside of those tags, and then reshow the page with the updated source.
View 1 RepliesVS 2008 - Operation Not Valid Due To Current State Of Object
Oct 10, 2011Before, my codes are working properly.. But not..I am getting this run time error. What the error means?
Operation is not valid due to the current state of the object.
VS 2010 Operation Is Not Valid Due To The Current State Of The Object?
Feb 21, 2012During Loading of form I call connectpaybox to show the list in the combobox, but after that it will result in the error "Operation is not valid due the current state of the object" but the combobox items that was taken from the database shows. I tried "select CAGECOST from CAGETYPE where CAGENAME like 'Normal'" where Normal is one of the items in cagename and it works.
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Error: "The Query Builder Failed. Cannot Open User Default Database. Login Failed. Login Failed For User <User Name>"
May 8, 2012I'm using Visual Basic Express 2010 and SQL Express 2008 in Windows XP. At first I couldn't add a datasource (the .mdf file for the database) because of a "Operating system error 32" which I seemed to have resolved by giving myself full permissions for .mdf file (by right clicking on the file and going into properties and then Security) and restarting the SQL SERVER (SQLEXPRESS) service. The dataset for the database is in my solution explorer but when I right click on a table adapter to add a query and attempt to open up the query builder, I get the error in the title above.
View 1 RepliesC# - Accessing Office Word Object Model Through Asp.net Results In "failed Due To The Following Error: 80070005 Access Is Denied."
Aug 13, 2010I have developed a website that allows users to upload office documents then uses the office object model to convert the document to an HTML file that it then displays in an iFrame. I have, of course, included references to Office.interop.word, and the site works fine on my development machine. When I uploaded it to my production server the site functions fine until I try to upload a document. I initially got a similar error that said "COM object not registered". I realized that Word wasn't installed on my production server. So I installed word and now when the server tries to access the word object model I receive the following error:
Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 80070005 Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))
I searched the registry for the corresponding CLSID and found a corresponding folder. I added full control to the IUSR_ account and due to the persistence of the error I eventually added full control to "everyone" and ensured these permissions inherited down to the rest of the folder. I then added full control to IUSR_ and again eventually added full control to "everyone" to my microsoft office folder.
I don't know what other permissions to grant and where in order to make this "Access is denied" error go away. I must be granting them in the wrong place, because as far as I know I can't be any more permissive than "Everyone" "Full Control".
"The Query Builder Failed. Cannot Open User Default Database. Login Failed. Login Failed For User <User Name>"
May 8, 2012I'm using Visual Basic Express 2010 and SQL Express 2008 in Windows XP.I created a database on my local PC HDD. At first I couldn't add a datasource (the .mdf file for the database) because of a "Operating system error 32" which I seemed to have resolved by giving myself full permissions for .mdf file (by right clicking on the file and going into properties and then Security) and restarting the SQL SERVER (SQLEXPRESS) service.The dataset for the database is in my solution explorer but when I right click on a table adapter to add a query and attempt to open up the query builder, I get the error in the title above.
View 10 RepliesVS 2010 Init String Size In .NET 2010?
Oct 25, 2011I have an app that calls a DLL, and passes a string to it (by reference). The DLL then fills the string and passes it back to the app. Before calling the DLL, the string must be sized correctly to fit the data the DLL is going to pass it. In the past (using VB.NET 2003) I just initialized the string with the correct number of spaces. This always seemed silly to me and I'm wondering if, in VB.NET 2010, there is a way to do this using a number to define the size?
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