AddressOf, Delegate And Upgrade Code From VB6?
Jan 17, 2012I am converting some VB6 code to VB.Net - specifically callbacks.VB6 code in Form_Load:
[Code]...
ADVERTISEMENT
.net - Addressof Syntax Without Delegate
Jul 8, 2011I am using this delegate to invoke my methode:
[Code]...
Use Anonymous Delegate Instead Of AddressOf
Jul 16, 2010Is it OK to use anonymouse delegates instead of AddressOf?
[Code]...
Can't Convert A Delegate (from AddressOf) To A Long?
Feb 19, 2009I am using the EnumWindows API Call, and I've looked at an API website. It can't convert a Delegate (from AddressOf) to a Long, so I made a delegate type for it. (Uh-oh, already.) I need to know something that will take the returned IntPtr and get the window title, so I can activate it with another API call and send some keys.
View 8 RepliesUPGRADE_WARNING: Add A Delegate For AddressOf AppBarProc
Nov 3, 2009[URL] I am trying to run this code in VB 2008 to see how it works (I'm learning) and I am getting an error that says:
UPGRADE_WARNING: Add a delegate for AddressOf AppBarProc
Silverlight - .NET - Send Delegate Through The Classes To Set AddressOf?
Jan 11, 2010How can I put AddressOf, from another class?I get this error 'AddressOf' operand must be the name of a method (without parentheses). "Is there an Eval () function in VB.NET? Or how does one do this?
Public Shared Property e As UserControl
Public Shared Sub SetButton(ByVal button As String, ByVal Objekt As [Delegate])
Dim errorbuttom1 As Button = e.FindName("errorButton1")
AddHandler errorbuttom1.Click, AddressOf Objekt
End Sub
.Net CodeDom - Create Delegate With AddressOf Operator Equivalent?
Apr 25, 2011Is there a way to create a delegate instance in .Net using CodeDom? I want to generate something which looks like the following:Dim myDelegate As someDelegateType = New someDelegateType(AddressOf implementingMethod)Below is more info on the context...Original Question:I am using CodeDom from the .Net framework (v3.5 if it matters) to generate a class. One of the classes defines a delegate method which in VB.Net looks like:Public Delegate Function filterByIdDelegate(ByVal obj As Object, ByVal id As Integer) As BooleanI then have a method which will provide the implementation:Private Function filterById(ByVal obj As Object, ByVal id As Integer) As Boolean Return (obj.ID = id)nd FunctionHere's the problem; how do you create an instance of the delegate (using the equivalent of AddressOf for VB.Net)? I am currently doing this (<filterByIdFunctionName> is a string holding the name of the delegate function, `' is the name of the delegate field):
Dim getFunction = New System.CodeDom.CodeMemberMethod()
With getFunction
'Declare delegate instance
[code].....
C# - Fix AddressOf Requires Relaxed Conversation To Delegate Error
May 23, 2011This is a mix of C# and VB.Net. I have a C# class with with 2 delegates:
public delegate string GetSettingDelegate(string key);
public event GetSettingDelegate GetSettingEvent;
public delegate void SetSettingDelegate(string key, string value);
public event SetSettingDelegate SetSettingEvent;
In a VB class I add handlers to the event:
AddHandler _gisCtrl.SetSettingEvent, AddressOf SetSetting
AddHandler _gisCtrl.GetSettingEvent, AddressOf GetSetting
When I try and remove the handlers:
RemoveHandler _gisCtrl.SetSettingEvent, AddressOf SetSetting
RemoveHandler _gisCtrl.GetSettingEvent, AddressOf GetSetting
SetSetting is OK but GetSetting throws a warning:
The AddressOf expression has no effect in this context because the method arguments to AddressOf requires a relaxed conversation to the delagate type of the event.
Here are the methods
[Code] .....
How to fix this and why it is thrown in the first place? The 2 delegates/events/methods look similar enough that I don't know why one is OK and one throws a warning.
Is A Delegate Type And Requires A Single 'addressof' Expression As The Only Argument To The Constructor
May 10, 2010I got 2 classes in a form, and I would like to pass a value from a textbox to the other class, so I decided to use Deligate.
Below is the code.
Public Delegate Sub delPassSize(ByVal text As TextBox)
'To get size from Class Calculate(Class 2)
Public Sub GetSize(ByVal txtForm1 As TextBox)
[code]....
and the error message is 'cls.Getsize is a delegate type and requires a single 'addressof' expression as the only argument to the constructor.'
Error : 'AddressOf' Expression Cannot Be Converted To 'Integer' Because 'Integer' Is Not A Delegate Type?
Aug 11, 2011I faced an error when upgrading VB6 code to VB.NET. The error occurs at AddressOf WindowProc
AddressOf expression cannot be converted to 'Integer' because 'Integer' is not a delegate type
My declaration for SetWindowLong is:
Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA"(
ByVal hWnd As Integer,
ByVal nIndex As Integer,[code]....
What is the reason for the error I get?
Delegate 'System.Threading.ThreadStart' Requires An 'AddressOf' Expression Or Lambda Expression As The Only Argument To Its Constructor?
Jan 23, 2010I got this Error. below is my code.
GenerateTheList is function.Need help
Private Sub buttGenerate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles buttGenerate.Click
Dim thread1 As New Thread(New ThreadStart(GenerateTheList))
thread1.Start()
End Sub
'AddressOf' Expression Cannot Be Converted To 'Integer' Because 'Integer' Is Not A Delegate Type
Aug 3, 2009I am a newbie in VB and I got a piece of code which can display the current running program. I need to use that in VB2005 and I got the below error message. Can anyone help how to fix it?[code]
View 18 Replies'AddressOf' Expression Cannot Be Converted To 'integer' Because Integer Is Not A Delegate Type
May 13, 2009I'm trying to convert a VB6 project to .NET, but I get problems with some callback functions, and the following message comes up: "AddressOf' expression cannot be converted to 'integer' because integer is not a delegate type" I've seen several solutions to similar problems like this, but I am not able to understand this issue with delegates.
After the conversion, the code look like this:
Declare Function vsmsgwSetDataPackageCB Lib "vsmsgwW.dll" (ByVal PACKAGE As Integer, ByRef arg As Integer) As Integer
Dim arginitP As Integer
[Code]...
Which gives the error: Method 'Public Function PackageCB(HisNodeID As Integer, ByRef data() As Byte, ByVal length As Integer, ByRef arg As Integer) As Integer' does not have the same signature as delegate 'Delegate Function DelegatePackageCallback(hwnd As Integer, lparam As Integer) As Integer
'AddressOf' Expression Cannot Be Converted To 'Object' Because 'Object' Is Not A Delegate Type
Sep 1, 2010I have user control which has one button. To handle click event of button I have added following code in usercontrol.
Public
Sub ChangeClickHandler(ByVal
[Delegate] As EventHandler)
[code]....
Now, I want to handle this click event where I call the this usercontrol. I call the usercontrol through reflection so I get the control in a form of object.
Dim button as object button.ChangeClickHandler(AddressOf mymethod), this line gives me error "'AddressOf' expression cannot be converted to 'Object' because 'Object' is not a delegate type."
.net - VB6 Code Upgrade?
Apr 20, 2012Possible Duplicate: Best Strategy for moving from VB6 to .NET Conversion tool comparisons for visual basic 6.0 Is there a good tool anyone can recommend to convert a commercial VB6 application into a VB.NET application. I have discovered some free ones and some commercial one's, but can't find any reviews and opinions of developers who have tried and failed or tried and succeeded.
What are the complexities involved? I know that .NET uses managed code and multi threaded apartments etc whereas VB6 is based on COM.
Upgrade The VB6 Code?
Dec 8, 2008I'm having trouble upgrading this vb6 code to vb.net.
Code:
Option Explicit
Private Declare Function FloodFill Lib "gdi32" (ByVal hdc As Long, ByVal X As Long, ByVal Y As Long, ByVal crcolor As Long) As Long
Private Type Point
[code]....
Upgrade A Code I Wrote In 6.0 To VB?
Mar 11, 2010I want to upgrade a code i wrote in vb6.0 to vb.net aw do i go abt it
View 2 RepliesMulticast Delegate: Represents A Multicast Delegate; That Is, A Delegate That Can Have More Than One Element In Its Invocation List?
Jan 30, 2010from the documentation we have this: Multicast Delegate: Represents a multicast delegate; that is, a delegate that can have more than one element in its invocation list.
so am i right to say that Multicast delegate is no different from a normal delegate other than the fact that it has arguments. so System.Action is a 'normal' delegate whereas System.Action(T)(Byval obj as T) is a multicast delegate?
IDE :: Setup Project Upgrade Code?
Oct 22, 2009I have an application which has been deployed in a setup programme, but have lost the original project setup code.The new versions setup project has a different 'Upgrade code' GUI in the setup project and therefore when you try and upgrade the product it throws an error saying that a later version of the product is installed!
Is there any way for me to retrieve the Upgrade Code from an installed version of the program so that I can amend the new installer to match the old program.The program has to be installed to 350+ desktops via active directory, so no answers with silly shortcuts that only work for a single PC please people.
Convert Code C# To Delegate
Jun 8, 2012I'm trying to convert the c # code of a sample code to vb.net but I could with the following line of code. it is an event, delegate. but I can not build a functional structure.
[Code]....
Delegate - BeginInvoke - EndInvoke - Clean Up Multiple Async Threat Calls To The Same Delegate?
Feb 9, 2010I've created a Delegate that I intend to call Async.
[Code]...
Get A Error" Method 'Private Shared Sub Ping Does Not Have A Signature Compatible With Delegate 'Delegate Sub ?
Jun 1, 2010Code:
Public Class SendPings
Shared Sub New()
AddHandler Post.Saved, AddressOf Post_Saved[code].....
I get a error" Method 'Private Shared Sub Ping(item As BlogEngine.Core.IPublishable, itemUrl As System.Uri)' does not have a signature compatible with delegate 'Delegate Sub WaitCallback(state As Object)'.
Multithreading - Delegate Within A Delegate?
Mar 23, 2010I am trying to write a VB.NET alternative to a C# anonymous function.I wish to call Threading.SynchronizationContext.Current.Send which expects a delegate of type Threading.SendOrPostCallback to be passed to it. The background is here, but because I wish to both pass in a string to MessageBox.Show and also capture the DialogResult I need to define another delegate within. I am struggling with the VB.NET syntax, both from the traditional delegate style, and lambda functions.My go at the traditional syntax is below, but I have gut feeling it should be much simpler than this:
Private Sub CollectMesssageBoxResultFromUserAsDelegate(ByVal messageToShow As String, ByRef wasCanceled As Boolean)
wasCanceled = False
[code].....
.net - AddressOf With Parameter?
Feb 4, 2012One way or another I need to link groupID (and one other integer) to the button I am dynamically adding.
[Code]...
How To Store The AddressOf
May 2, 2012How can I store the address of a function so I can use this later in my code? I want to do something like this:vb
checkStatusWorker As addressof function= addressof functionName
.net :: AddressOf In Base Class?
Mar 16, 2011When referencing a method's address, should we take into account the overriding or not?
Class B
Inherits A
Overrides Sub Foo
[code].....
Calling AddressOf To Be Dynamic ?
Aug 11, 2010I have some code and just need the calling AddressOf to be dynamic
[code]...
filterer.FilterSite is the code that I need to replace each time with another method call.
EventHandler AddressOf Invoke?
Apr 22, 2011I wish to check the hard drive space used in a folder on a hard drive. This will happen continuously as a service, so it will be calculating the space used for thousands of folders all the time. I know that this code can be done easily in dotnet, but it seems to take a really long time. Are there any APIs to do this more efficiently, or does the entire looping process have to occur to do this check?
View 3 RepliesPassing Arguments To AddressOf?
Dec 25, 2010I'm currently using the code:
Public
ReplaceThread As
System.Threading.Thread<br/>
[code].....
'AddressOf' Expression Cannot Be Converted To 'Integer'
Oct 13, 2009im converting a vb code to vb.net from simpleocr site but i can't run this code because of error in sub calling (ret = objOCR.OCRSetOutputHandlerX(AddressOf myOutputHandler)) :
Code:
'AddressOf' expression cannot be converted to 'Integer' because 'Integer' is not a delegate type.here's the code:
Code:
dim strOCRResult as string = ""
Private Sub DoOCR (filename as String)
Dim objOCR as SimpleOCR 'SimpleOCR object
[code]....