Spotted A With MVC 1.0 Handles Strong Types When Using IDataErrorInfo?
May 13, 2010
I wanted to ask this question here rather then at the asp.net site (it takes too long to get an answer) because I think I have found a problem with how MVC 1.0 handles custom classes that implement IDataErrorInfo when using view binding. Not sure if this is a problem in v2.0 but I have never heard it mentioned.
Here's a little background, in MVC if I want to have strongly typed view, I create a class that basically holds the post information for me. MVC binds the form fields in the POST to the class properties of the same name for me automatically when I do this rather then implementing the ViewData dictionary.
[Code]...
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Oct 6, 2011
I get the error
Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
in the following code..
Public Sub selCurrentManuf_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles selCurrentManuf.SelectedIndexChanged
End Sub
The drop list to go with it is the following...
<asp:DropDownList
OnSelectedIndexChanged="selCurrentManuf_SelectedIndexChanged"
selectedvalue='<%#Container.DataItem("c1_manufidcurrent")%>'
[code]....
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Aug 23, 2009
I created a lable to handle DateTime = Now, It works fine. but when I moved it inside a FormView I Get the following Message. Handles clause requires a WithEvents variable defined in the containing type or one of its base types?
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Dec 8, 2011
I am auto generating data grid and I am using check box in Data grid View,Now i am invoking check box state changed event but it produces the following error Handles clause requires a With Events variable defined in the containing type or one of its base types.
Here the code
Private Sub PRNT_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles PRNT.CheckedChanged
Some Stuff.
End Sub
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Mar 25, 2010
I am in the processing of moving an app from VB to C# but some of the classes I will just be moving to VB dlls to access from the main C# app. In doing this I am trying to get the VB dlls to utilize the main C# class lib. In this C# lib I have an abstract clase called base process, it sets up a background worker and handles all the progress tracking, errors, and even reports an ETA. To use this in a derived class in C# you would just do this...
public class SomeLongProcess : Common.Multithreading.BaseProcess
{
public void start()
[code]....
The problem is that if I do the equivelant in VB I get an error "Handles clause requires a WithEvents variable defined in the containing type of one of its base types". Well I can't do a WithEvents in the base class because it is C# so..
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Aug 26, 2011
I am trying to follow this thread
[URL]
and I have it pretty close but have one error.
Quote:Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
That error is on both of these, in blue
Private Sub SpellChecker1_DeletedWord(ByVal sender As Object, ByVal e As NetSpell.SpellChecker.SpellingEventArgs) Handles SpellChecker1.DeletedWord
'save existing selecting
[code]....
I have added the reference, I have also added them to the toolbox. My dictionary is all set. What did I miss?
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Nov 22, 2011
i am getting errors on last two event handlers. what did i do wrong?
Error - Handles clause requires a WithEvents variable defined in the containing type or one of its base types.D:Shipping ApplicationShipping ApplicationForm1.vb75136Shipping Application
Error - 'PrintDocument1' is not declared. It may be inaccessible due to its protection level.D:Shipping ApplicationShipping ApplicationForm1.vb1119Shipping Application
[code]....
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May 11, 2009
Just upgraded a VS 2005 ASP.NET 2.0 website to VS 2008 ASP.NET 3.5. There was an error on the Sub Button_Click. It seemed to be a minor error, the website and the button worked just fine, as usual. What does the error mean?
Protected Sub btnDEreports_Click(ByVal
sender As
[code]...
Error 20 Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
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Sep 17, 2009
I heard somewhere that I need to strong name my binaries before I distribute them.
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May 16, 2012
when i am selecting form the xaml file a button and then tap event from the right (in order to set the tap event) it auto generates this sub :
[Code]....
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Jun 21, 2012
I spotted this ina piece of code I am trying to decipher, and it made me giggle...
Public Const INFINITE As UInt32
Infinity in an unsigned 32-bit Integer.
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Dec 8, 2009
I would like that my dlls created in vb.net will not used by others, is the strong name will do it? How to use strong name?
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Sep 17, 2009
how to Using Com on Dot Net Program that have strong key ?i get a com dll that need to used to control finger scan hardware.and i already added it in my vb dot net program. it completely work fine.but after i added my strong key to my vb dot net program, i can not compile my program. it seem because of com dll doesnt have strong key.
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Nov 1, 2009
I have a class with a Property called 'Value' which is of type Object.Value can be of any type, a structure, a class, an array, IList etc.My problem is with the setter and determining whether the value has changed or not.This is simple enough for value types, but reference types and lists present a problem.For a class, would you assume that the Equals method has been implemented correctly, or just assume that the value has changed every time the setter is called?If I did assume it's changed, then perhaps I should assume it for value types as well, so that the behaviour is consistent.
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Dec 31, 2009
Say I have a class with one property
[Code]....
I have to pass the name of the property to a function call. (Please don't ask why it should be done this way, its a third party framework). For example SomeFunc("MyItem") But what I would like to do is, change the string into a strongly typed parameter. Meaning, if the property name is renamed or changed, it should be reflected here too. So something of this type :
[Code]....
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Jan 27, 2012
I'm converting a VB6 dll to VB.Net using Visual Studio 2008 Express. I want to use the same .dll to integrate with Excel via Excel-DNA, but also to be available via COM (I need to be able to call it from VBScript and VBA).
If I leave the assembly unsigned, I have access to all of the ExcelDNA functionality but no COM access.
If I sign the assembly with a strong name, then when I try to build the .dll I get the following error:
Unable to emit assembly: Referenced assembly 'ExcelDna.Integration' does not have a strong name.What are my options?
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Jun 12, 2010
I'm trying to change the "load path" of all DLL-files that i have refereed to with this code
Function MyResolveEventHandler(ByVal sender As Object, _
ByVal args As ResolveEventArgs) As [Assembly]
'This handler is called only when the common language runtime tries to bind to the assembly
[code]......
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Dec 7, 2010
I Finish my program but my interface is not good (its just a picture & its almost 0) but a good program like vb 2010, bitdefender & ... have very beauty a and strong interface how i can make a good interface
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Feb 1, 2010
Ok, I've read every question on here about strong named assemblies and just want to clarify something. First though, from what I've read, GAC aside, strong named assemblies prevent a malicious 3rd party changing and impersonating your code. It'd be great to have some links to some real world examples of this kind of spoofing that happened pre strong named assemblies. If security or the GAC are not a concern, It seems that it's still advisable to strong name assemblies because:
(A) Clients who have strong named assemblies can only reference your assemblies if they are signed.
(B) Clients who do not have strong named assemblies can reference your assembly whether it's signed or not.
Is that a fair analysis?
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Nov 1, 2009
how to allow dot net program to run from network without strong key ? since i have program put on network, ussually i put strong key on that assembly, and it can work and run from network this program.. but there is some component com object that make me to cannot compile if i put my stong key, so i compile it without stong key, but it came i cannot run this program from my network..
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Dec 26, 2009
error: when assign the strong name in assemble
Use command-line option '/keyfile' or appropriate project settings instead of System.Reflection.AssemblyKeyFileAttribute'.
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Mar 6, 2012
I am trying to make a strong (or even medium-security) based authentication. How this would work is simply by storing a username/code on web (using dropbox perhaps) then using those codes to pass on to friends to use. This way if you remove that code online,that person will no longer be able to access that program. As far as I know, it is quite simple to save the number of uses, or username and pass on a text file to save on their file or registry things can be done but that is only 1 computer based. That is a very easily crackable security and is not worth it.As far as I have know you need to create a new main form where the code/ id/ username/password/onetimelogin will be asked. If it is correct, form2.show if not then "exit". The codes are stores on a text file on dropbox.com like websites, then the link to the textfile is obtained.
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Jun 25, 2009
I fully realize that what I am proposing does not follow the .NET guidelines, and, therefore, is probably a poor idea for this reason alone. However, I would like to consider this from two possible perspectives:
(1) Should I consider using this for my own development work, which is 100% for internal purposes.
(2) Is this a concept that the framework designers could consider changing or updating?
I am thinking about using an event signature that utilizes a strong typed 'sender', instead of typing it as 'object', which is the current .NET design pattern. That is, instead of using a standard event signature that looks like this:
[Code]...
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Apr 12, 2011
I am getting a strong naming violation for the dll file and really new to signing applications. How would I proceed in resolving this so that I can build the application I will be supporting? Also, as the FreeImage reference gets updated will I need to re-sign it?
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May 18, 2010
I am trying to use NAnt in order to compile and sign an assembly using the vbc compiler. I have a project set up and am able to successfully sign the assembly compiling with VS2010. When I try to sign it using the command line I get this error:
vbc : error BC30140: Error creating assembly manifest: Error signing assembly -- The parameter is incorrect.
I even created a trivially simple app (just an assemblyinfo.vb file) that will not compile and sign using vbc.exe What am I doing wrong?
here is my assemblyinfo.vb:
Option Strict Off
Option Explicit On
Imports System
Imports System.Reflection
[Code]....
I have found that MSBuild also does not like having the AssemblyKeyFile attribute as I have defined it in the AssemblyInfo.vb, it gives the same failure message. So the only way I can currently get this to build correctly is to set properties on the project to tell it which key file to use and to sign the assembly.
The reason this appears to work building the project from within VS2010 is that msbuild is passing /keycontainer to vbc.exe on the command line instead of using /keyfile. Still don't know how to use the /keyfile command line parameter.
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Mar 18, 2009
For the life of me I can not find the Enterprise Library Strong Naming Guidance Package download for Enterprise Library 4.1
I need this to sign the assemblies to add them to the GAC.
Does anybody know where I can find it?
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Apr 1, 2012
I'm using this code to try and show how strong the password is but the panel is changing to DarkRed no matter what is in the TextBox1.What am I doing wrong?
Wrapped it in PHP tags because I think it makes it easier to read >.>
[Code]...
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Jun 23, 2012
I need to compare two dictionary values if the types stored are equal, this is what i have
if gettype(Args(key)) = gettype(argtypes(key)) then
'' do something
end if
[Code]....
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Dec 4, 2009
I have recently upgraded an VB6 project to vs2008. I was almost finished when the following error occured. Unable to emit assembly: Referenced assembly AxInterop.MSFlexGridLib does not have a strong name Prior to this error appering, I tested my app several times and it was fine. Only after publishing it did the error appear. I have tried all solutions I could find, but nothing helps. I have read [URL]
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Apr 28, 2011
I have code like this which loads a control from an .ascx file, calls some methods of the control, then renders it:
Option Explicit Off
Sub renderMyControl(p As Page)
Dim ctrl as Object = p.LoadControl("path/to/myControl.ascx")
' ... do stuff with ctrl ...
[Code]...
This code only works because Explicit is off. I would like to use CType to convert the control to its "strong type" (and get rid of Option Explicit Off) but I don't know how to add a reference to the type. How can I do this?
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