I am currently using Visual Basics 2010 (Ultimate), and I am trying to modify a free-project listed here:I want the above project to use these hard-coded values below:Key= "087CF262E0E856B8F911B369EE027CF9330F6288343651B1198379A9813BC8C4"
IV = "11D2A07242B79C752E6B53CDD14792C9"So basically i want to encrypt AND decrypt with the above keys.
I am a newbie (retired social worker) using Visual Basic 2010 Express edition and need some help with an animation for an eLearning lesson. The animation illustrates a type of white noise (like TV static) called dynamic visual noise. I've got much of the code worked out (with a lot of help) but I discovered that the speed of the animation, using this code is wrong and need some help to fix the code, get it working correctly.You can view a Flash demo of this noise animation at url...More info here about the visual noise animation (even a Delphi source code and Windows demo): url..The animation has a 640 X 640 canvas, with 8 X 8 white and black dots filling it using 80 across and 80 down, for a total of 6400 dots. Some of these (approximately 400) change every second (1000 Ms) from white to black or black to white. These 400 dots need to be selected randomly every second.
The VB code I am using is missing the ability to randomly select the 400 dots per second which are the dots to be changed (white to black or black to white).Here is the current (commented) code that needs an addition of a random generator for the 400 dots every second that will be changed:[code]It would also be a huge help if I can change the specific number of random dots so I can try values ranging from 390-400 dots per second to see which value best replicates the precise animation speed needed.
To open many aspx pages in my application il use parameters and sometimes the user name and password as required. For instance: [Code] Is there any way to crypt URL Informations?
View 4 RepliesHow to crypt a TextBox value?I have a builder, that builder put into the stub, a login from a email server.But if you open the .exe with a HEX Editor, you can see that login info.How can i crypt that and decrypt in the stub?[code]...
View 1 RepliesI have written a simple program that uses authentication and have user and password for connecting to database. But the problem is that I need this information to be totally hidden and not to bea able to read when someone opens exe file in Notepad or some other soft. I searched the internet fr the crypters, but all of them seem to be viruses.
View 1 RepliesI give a file as parameter it crypts it with anything I don't really care if its safe or not I just want to person to not understand anything if he try's to read the file directly.so something like
[code]...
I want it to open the file, rechange it to the uncrypted value then close the file. I'm using serialization so it has to be able to crypt and decrypt anything serialization does.
Reason:
When I open the file the file serialized I can still see some text.I can still see some text. =]
If I'm not mistaken PHP crypt() function use DES-based encryption algorithm. So I've search DES Encryption code and all that I found is code that similar to the one in this post http://www.vbforums.com/showthread.php?t=471798
But with those codes I must enter 8 character lenght salt. Less then that the code wouldn't succeed. In the other hand. The PHP crypt() function only could use 2 character length salt. If you enter more than that, it seems it only use the first 2 character..[URL]
I want my app to load a .exe file specified by the user, crypt it then save the crypted .exe file on a path also specified by the user. I need some guidance on this. First of all, I am currently using IO.filestream to store the .exe file. When I save the completed file (so far in development, that means a copy of the file as I haven't added encryption yet) the .exe file appear there alright, but without the icon (it has the standard/no icon instead) and it does not work. I tried outputting it to a .txt for examination and it was a bunch of tokens as one would expect. Here is the statements:
[Code]...
I am rewriting a C# class in VB. The C# class has a static constructor in it:
static Class()
{
...
}
which, through the Call Stack, I found is called by the main window's InitializeComponent() method.Everywhere I've looked has told me that the corresponding static constructor in VB is just:Shared Sub New()
but this method is never invoked. Am I creating my VB static constructor right? Is it likely something else that has nothing to do with my static constructor?
I am writing a code for a webapplication in vb.net. I am using a shared variable in the vb code.
Consider the static variable value is 3 for a user who hits the web application. Again when another user hits the same web application, whether the static variable will be 3 again or whether he will have a separate value for static variable for his session?
This will probably be a basic questions for the LINQ & architecture experts however I am failing to understand a problem i've encounted when trying to update a 'Static ObservableCollection.
Me.Grid1.ItemsSource = ContactList Me.Grid2.ItemsSource = From s In ContactList Where s.ContactTypes.Any(Function(t) t.ContactTypeName = "Christmas List")
If I add a new Contact with the ContactType "Christmas List" to the ContactList ObservableCollection, Grid1 reflects the additional Contact however Grid2 does not reflect the change unless I rebind.
Anyway to Reflect the change in Grid2 to show the new Contact with the queried ContactType
We have a DateTime Service that pulls the Database date down when we need to use a Date. Now, If I want to run a test using "Todays" Date using FitNesse, What would be the easiest way of creating a way to have (OurService).CurrentDate be static? We have a control that ads Days,Years, or Months to the current date.. and I would like to be able to test this.
View 1 RepliesI have the following code:
Public Class TestClass
Public Sub Main()
If theGlobal IsNot Nothing Then Throw New Exception("What gives!")
End Sub
Private Shared theGlobal As Object = Nothing
[Code] .....
Why is theGlobal object NOT Nothing?
when they say static classes should not have state/side effects does that mean:
static void F(Human h)
{
h.Name = "asd";
[code].....
how to limit static integre.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Static a As Integer[code]......
In the following example GetList returns an instance of a static (shared) variable. That one needs locking in order to be thread-safe.But what about DoSomething which doesn't use any static variables outside the method? Does it need locking too?I'd like to clarify that in this particular case I expect DoSomething to always print 0-100 in sequence (i.e. no 0123745...) regardless of number of calling threads. Or, in general, that different threads don't affect each other's variables (printing to console is only an example). The language in the following example is VB.NET.[code]
View 3 RepliesIm trying to load a google static map in a winform. I found a control online that would helpme but i cant get it working. i got the control from Here. i was not able to drag on the control on to the form like others. i have also email the dev of the control but have not heard back yet.
[Code]...
Do vb.net static variables work on an IIS web garden?
View 1 RepliesI have an excel sheet developed by a vendor that I'm stuck with the current functionality as a short term solution. The users workflow have them pull 4 separate sets of data which they are copying and pasting into a different spreadsheet where they append the data to previous days' pricing for trend analysis. That macro is built looking for the first blank row in column A, simple enough.
However, they then add the current day's date to this other spreadsheet as an additional column to do that trending. I found a nice link to a site that mentioned I could do this logic by adding code by right clicking the sheet name and selecting 'View Code'. I then entered the following logic that states if column A is populated, populate Column T with today's date statically (Today and Now don't work because I need it to stay at that date when it is refreshed). My issue is that this works great if I enter test data into cell A and hit enter. However it is not populating the date if a copy and paste is executed into the column A. Is there something I'm missing or a recommendation to have this work with copy/paste?
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Cells.Count > 1 Then Exit Sub
If Not Intersect(Target, Range("A2:A15000")) Is Nothing Then
[code].....
what is the Equivalent of a Static class in VB.Net. Is it Modules?And When i used one of the C# to VB.Net conversion tools then the code "Public Static class Class1 " was converted to "Public NotInheritable Class Class1"
View 1 RepliesI have a C# method in my datatier that I am trying to convert to VB.Net. I converted it to VB.Net but when I bring up the datatier class the method is not showing. It has been a long time since i have used VB.Net and forgot alot of things [code]I believe it has to do with the declaration, which i have as:Public Static Function UserActInfo(ByVal _eno As String) As useraccount..
View 1 RepliesIs this code correct or is there any possibility of some random threading deadlocks etc?
Is it a good idea to use static properties and locking together? Or is static property thread-safe anyway?
Private Shared _CompiledRegExes As List(Of Regex)
Private Shared Regexes() As String = {"test1.Regex", "test2.Regex"}
Private Shared RegExSetupLock As New Object
[Code]....
If it's not obvious code is compiling regexes and storing in a List(Of Regex) so they can run faster. And it's shared so every instance of class can get benefit out of it.
I have a field which is static and readonly. The requirement is that the value should be allocated to the field at the login time and after that it should be readonly. How can i achieve this ?
public static class Constant
{
public static readonly string name;
}
is there a difference in performance when making properties static/shared that were instance properties before, maybe any locking mechanisms?There is a heavily used object in HttpCache which was accessible through a property in a page-instance(Service.aspx). Now i wonder if it would be better to make it static because the HttpCache is shared across the application anyway.
View 4 RepliesI've got a shared class (static in C#) which mostly carries some settings data that any class in the application can read and sometimes write. Also there are some static properties which holds some internal states.
Now I want to revert this class to initial stage of it. With all default variables etc. Assume that the user want to reset the current state and start over without restarting the application.
In a singleton model I'd simply renew it with something like this :
Public Sub Reset()
_Instance = New MyClass()
End Sub
However this is not possible in a Shared class. Or should I switch back to Singleton?
I Want to know which one is preferred while coding to use Static Methods or normal instances, I prefer to use static if they where few but if there was many of them I start to get some doubts
[code]...
if the EmployeeManager Has Many methods (selects deletes updates) is it ok to make them all static.and if it was Normal instance. wouldn't be a drawback if the object is initiated every time specially if GetAllEmployees() is heavily used.What is the better approach to use?
Is there a product/project that would allow you to define conventions for say an MVC Project to statically check for naming conventions like Controller being appended on the end of classes that inherit from controller and/or enforce a certain method signature when decorating a method with an attribute.I am basically looking for a way to kind of set up some guard rails for new developers coming onto our team where we have a clear set of conventions some of which are used to wire things up dynamically through reflection. Seeing that this reflection wire-up would fail because of an incompatible signature would be a huge boon to our ramp up process.Static/Compile time checking for broken rules Ability to target methods decorated with specific attributes (via RegEx or a Wizard)Different Sets of rules based on different types of projects.(example: A set of conventions for an MVC App, a different set for a Web Forms App, and a different set for a Class Library suffixed with .BLL)?
View 1 RepliesI'm new to C#.Till this moment I used to make every global variable - public static.All my methods are public static so I can access them from other classes. I read on SO that the less public static methods I have,the better.So I rewrote my applications by putting all the code in one class - the form class.Now all my methods are private and there's no static method.
My question: What should I do,keeping everything in the form class is dump in my opinion. When should I use public,when private and when static private/public? I get the public methods as a 'cons' ,because they can be decompiled,but I doubt that.My public methods can be decompiled too.What is so 'private' in a private method? EDIT: I'm not asking how to prevent my program to be decompiled,I'm asking whether I should use static,private and public.And also : Is there are problem in putting all the code in the form class so I dont have to use public methods?
I have a C# dll and want to use it in VB.NET. I'm using C# 2008 Express and VB 2008 Express. I have added a reference in a VB project to the C# dll. When I create an instane of a class in the C# dll, it gives the following error messsage: "Type 'RF.RabinFingerprint' has no constructors". My C# dll code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;[code].......
I am trying to write a quick utility that will find out if a Windows XP computer is set to Static or DHCP and write a log file c:computername_static.log or c:computername_dhcp.log.
View 2 Replies