VS 2008 Design A Program That Calculates Hashes Of Files?
Apr 16, 2009
Okay, that's not a big deal... I'll implement FileStreams and read bytes performing operations on them. The problem is that if I do this, the program will hang until the hashes have all been calculated. I want the program to show the hashes calculated so far and a progress bar. I know I need to implement this using threads and interrupts, but how, P.S. Any example code, simply for showing the progress of any operation, and involving a thread,
I'm trying to make a database of MD5 hashes (just for myself). I save the MD5 + Passwords in a .text file. But how can I if the two MD5' are the same, load the password out the .txt file? To read the .txt file I had something like this :
I'm trying to make a program that calculates the x's for you using the abc formula. Now i have made it, it gives a value of "NaN" as output. I don't know where i went wrong, so I hoped one of you could help me with it.
VISUAL BASIC 2008. Program Description: Create a program that calculates the amount of quarters, dimes, nickels, and pennies are needed from an amount of change (entered in pennies). The program should use the largest coins possible (for example, fifty cents should use two quarters, not five dimes, fifty pennies, etc.)
I don't want the code already written out, I need somebody to walk me through making a code. Also, this is my first class dealing with computer programming so all we've learned so far is declaring variables and how to label objects, the simple stuff. I'm at a loss at how to start because a quarter is worth 25 but the program is supposed to show how many quarters once a user enters the amount in cents.
I am building a program that calculates the number of books by points.Ex: 1-3 books read are worth 10 points, 4-6 are worth 15 and > 6 are worth 20. The issue I'm having is getting it to calculate the the first 3 books, the 2nd 3 books and then the > 6.Ex: User inputs 8 books read. It should display 115 in the label.
1. I'm using an If statement (should I be) 2. Could I use a decimal for the > 6? Ex: intTotalNumberOfBooks = (intTotalNumberOfBooks * intFirst3Books) *#D
I know this is something simple and it's out of VB 101, but it is my very first programming class and my professor uses a copy paste method during class.
I am trying to write a program that compute the bill for a pizza shop and I cannot figure out what I am doing wrong when I build it there are no errors but when I debug it it will not run [code]...
I have to write a program that calculates amount due and provides a summary or rentals.Members get 10% off. The program is to calculate the Total rental price then how much the discount is and then the total amount due. Inside a Group box called summary I need the program to display the number of customers (captured each time a member number is enentered) and the total rental income after the discount. I have the follwoing Text Boxes:
Need to design a program that can encrypt and decrypt messages stored in simple text files using a private key stored in a separate file. Software should also be able to allow the users to enter simple messages that either displays the encrypted or decrypted message. The encryption method should use a simple substitution method. It should be set out in the following format:
Example (the "@" is the separator):
@ The character The Code End of line A @ 4gh EOL B @ 84!9 EOL
Has to use the 256 ASCII character codes. The separator will be used to separate the character and its corresponding code.Here are the pseudocodes I have come up with:
� Read any private key file separator = readline(file); while not EOF(file) do tempStr = readline(file);
I'm creating a program for my workplace which stores hours worked, calculates pay and all that stuff.Problem being, the database will be accessed through the network and i want to be able to select the database from an openfile dialog on first use to locate the database. On every program start up it then would have the database location stored within the program itself.
I'm trying to create a program which will calculate the Fibonacci Sequence which calculates the numbers correctly however, there are a few problems.
1. When using a Do While...Loop the program becomes non responsive.
2. Kind of dealing with the program becoming non responsive; I am unable to stop the process by forcing the sub to Exit.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Operation.Text = "Calculating...." EStop = False
I am making a program which calculates the cost of (Let's say) Spent Electric Energy for a number of days,defined by the user..I have 2 Date Time Picker and x (The average energy spent in a day) where x must be an integer and it is defined by the user x * (DateTimePicker2.Value - DateTime Picker1.Value) = y (The value to be paid for a number of days)
I need to write a program that calculates and displays the depreciation of a businesses assets.I need the program to read a comma-delimited input file containing the names of multiple assets, their purchase prices, the years of their purchase and the number of years that the assets are expected to be useful.I need to use this straight line depreciation formula- (purchase price / number of years of usefulness) * (current year �purchase year)
This always happens to me in Visual Basic. Whenever I save a project from one day and open it again using that same VB version the next day, I can never see the form design. But if I click on Debug, I can see the Form design and only use it as if it were a program.
I am trying to build a program that calculates the minutes worked times pay rate equals amount of weekly pay this is what I got but it doesn't calculate
Having a slight permission problem with Win 7 I am guessing it will be the same on Vista but work fine on XP (yet to try)But my program is sitting in: C:Program FilesCompanyProgram And its trying to create new files alongside itself in the Program Files area but bombing out which I know is permissions. If I go there to create the file myself it comes up with a UAC prompt and when I hit allow it works fine but obv the program can't do that byiteslf so bombs out.Is there anyway I can over come that without the user having to grant admin rights to the program each time it starts or do I have to write data to another place?
`I want to encode my string using .net and pass it to a java program. I am using the same program for encryption and decryption on both the sides. But the java program and .net programs are returning different MD5 hash codes.Here are the codes for both my programs :
VB.net
md5Provider = New MD5CryptoServiceProvider() input = UTF8Encoding.UTF8.GetBytes(sSecurityKey) oHash = oMd5CryptoServiceProvider.ComputeHash(input)[code]....
The problem is that m.digest() from java and oHash from vb.net are different. So i cant go further with DES encryption.
I am currently trying to pass an array of objects as a result to VBA but Excel is complaining the following:
'Function or interface marked as restricted, or the function uses an automation type not supported in Visual Basic.'
I have looked around on the internet and have seen similar issues but not to one I am trying to do.
My function is declared as follows:
<ComClass(Class1.ClassId, Class1.InterfaceId, Class1.EventsId)> _ Public Class Class1 #Region "COM GUIDs" ...
[Code]....
VBA is complaining about the System.Objects my question is how the heck are you supposed to pass and return arrays from .NET to VBA. Also the data that will be in the ArrayRes() is mixed type, its not just strings etc, its an array of arrays that can contain strings, integers doubles etc.
I chose VB .NET because I assumed it would be possible to map to VBA easier.
One last thing, if System.Object and Arrays in VB .NET is not the way, ie maybe theres another way via collections or lists, then Im open to that. I just need to get this data into VBA. Also I could move over to C# if needs be.
I'm having trouble figuring how to code the calculations for a Pocket PC application that calculates the cost of a cell phone bill. From a Pocket PC the user should enter the number of minutes used during the past month, in order to calculate the cost of the cell phone bill. The plan allows 300 minutes for $29.95 per month. For each minute over 300 the cost is $0.17 cents per minute. Tax and Fees are $4.85 a month.
1. User enters the number of minutes used during the past month.
2. Based on plan rate of 300 minutes for $29.95 and 17 cents for each minute over 300 calculate the cost of the bill including the fixed cost of $4.85.
3. The user must be able to initiate the calculation and display the individual charges and the total cost of the cell phone bill.
4. The user should be able to clear the number of cell phone minutes, the individual charges and the bill total
If negative number is enterd for the cell phone minutes, the user should be advised and asked for a valid entry If non numeric value entered for the cell phone minutes, or if left blank the user should be advised and asked for a valid entry.Application is deployed on the Pocket PC emulator built in VS 2008
Enter # of Minutes ________ (user enters) Regular Minutes Charge ___ (29.95)
i have a program that when you click a button it randomly gets a random line from the file and adds it to a textbox. Well when i give ppl the program it needs to have the .txt file in the same dir right.
But how would i add the file to the program itself ?
Or Add the contents of the file to the project ? maybe a class or something idk.
i was thinking yesterday that is how do i load program instalation files thro vb.net 2008 like when i click a button in vb .net It instals a program within the vb.net
I have a program that will rename files that the user selects. The problem is even though when you go through the whole process, and it works successfully, it doesn't rename every file.To all people new to vb, try not to code like this as it is about the worst way to use a loop. I was in a hurry last night so i took the easy way out [code]Again, bad coding practices throughout the whole project, but the program will probably only be used by my dad so it will do.Note that the form: "Name and Ext" will not be shown when the program is all finished. I only had that visible for now so that i can check to see that everything is executing correctly.
I want to unzip files from my program, so i'm using the Shell32 functionality like so:
Module Module1 Sub Main() Dim sc As New Shell32.Shell Dim srcDir As Shell32.Folder = sc.NameSpace("zippath") Dim destDir As Shell32.Folder = sc.NameSpace("destinationpath") Dim items As Shell32.FolderItems = srcDir.Items() destDir.CopyHere(items, 256) End Sub End Module
This theoretically works, but i'm unzipping an 8Gb compressed file and the dialog that pops up says it will be done in 1day, 19hours. This is ridiculous because when I just right click on the file and decompress it from there, it takes only a couple of minutes! I can't imagine what the problem is! I know that the shell process actually spawns its own thread, so I worried at first that my process was exiting before the thread could spawn and added a Thread.Sleep(1000) after destDir.CopyHere() but it had no effect.
I've noticed that when I save a newly scripted program and attempt to open it after I close Visual Studio 2008, it no longer shows the layout/design of the program...how would I go about configuring it so it looks the same as before I closed visual studio?
I want to make a program that compiles dll files to a prebuilt exe in the same directory of the file exe file:iPhodroid.exe.I wan to compile about 15 dll files to it here is the link for the source code and dll files.I want to compile the files when the users press FIX IPHODROID button.
My application creates a file by writing to System.AppDomain.CurrentDomain.BaseDirectory() & "data/" & filename...Now this works fine usually, but I just added a setup utility to the app, so now it installs to the program files directory. It installs correctly and creates the data folder, however when it tries to write the file it gets an exception "unauthorized access".
I intend to choose developing a Web Content Management System using asp.net with VB.net 2008 but I'm not sure about how long it takes to program such system. Is 4 months enough for developing such system? This 4 months is the duration of this semester and Includes about two months for analysis and design and the rest is left for implementation.
