VS 2008 Making A Calculator Using Arguments And Functions?
May 6, 2009
Ok. I just took my final for VB and the last chapter we did was on procedures and functions. Functions was the only thing out of this whole semester that I was just completely lost. I'm trying to work on this cause I'm taking Advanced VB next so I wanna know what I'm doing. So I'm trying another tutorial in the book and I'm really lost. Here is what the it wants you to do.
Retail Price Calculator
Write an application that accepts from the user the wholesale cost of an item and its markup percentage. (For example, if an item's wholesale cost is $5 and its retail price is $10, then the markup is 100%)
The program should contain a function named CalculateRetail that receives the wholesale cost and markup percentage as arguments, and returns the retail price of the item.
When the user clicks the Get Retail button, the program should do the following:Verify that the values entered by the user for the wholesale cost and the markup percent are numeric and not negative. Call the CalculateRetail function Display the retail cost as returned from the function.
Here's what the calculator looks like and my code so far.
Public Class Form1
Private Sub btnRetail_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRetail.Click
I have to write a program that allows users to specify two numbers and then adds, subtracts or multiplies them when the user clicks on the appropriate button. The out put should give the aritmatic performed and the result. I inserted an attachment on what it should look like also Public Sub btnCompute_Click() Handles btnCompute.Click " here at this one I am getting an error message Error 1 Statement is not valid in a namespace. C:\Users\Tiffney\Desktop\School projects\WindowsApplication1\Form1.vb 1 1 WindowsApplication1"
I have a small project from my university they have asked us to make a calculator , well everything is easy so far except the 3 last functions that I need help with.
as we all know vb has already some math functions implemented in its libraries the problem here those functions giving me wrong results I am trying to get math.tan(lblnum.text) math.sin(lblnum.text) and math.cos(lblnum.text)
they don't output the correct numbers any idea why?
topfunction(myarray, yourarray) dim function topfunction(byval array1() as integer, byval array2() as integer) dim function subfunction1(byval array1() as integer)
For my enterprise computing course we were asked to re-due a previous project which was a mortgage calculator that calculates your monthly payment except now using function and sub procedures.
Well I am a new to VB.NET, converting a legacy system to .NET world. Recently I have been reviewing the already existing code since I joined the project quite late in the team. I find that there are many shared functions (not shared class) inside many classes. I doubt this may create some problem if two requests ( i.e two different HTTP request to the same method as it's a WCF application, of course exposed methods are not shared but internally called methods are shared) comes to the same shared method and both the calls to the method may have different method parameters/arguments, overwriting each other's arguments. In short, if shared method has a list of arguments which is going to be processed, is there any chance of inconsistencies in the light of multiple access to the shared method via two http requests.
im trying to make a little app that you can run from a web address bar... some games we play has that function in the game but some dont... so i found some source code online on how to insert data into registry and i can launch the game from a web browser address bar... BUT i need to pass another argument path to game\game.exe -mod:"modname here" -server:"server ip here":"server port here" -noautoplay now i can get it to load with path to game\game.exe -server:%Host%:%Port% -noautoplay some code from the app....
Dim u As New Uri(args(0)) Dim arguments As String = reg.GetValue("HeatLinkArguments").ToString() arguments = arguments.Replace("%Authority%", u.Authority)
[code]....
but how can i add a string in of my own??? i want to have something like this....
path to game\game.exe -mod:%ModName% -server:%Host%:%Port% -noautoplay arguments = arguments.Replace("%ModName%", "name of mod")
how would i insert "name of mod" in to the replace?
im making a calculator with multiple function but im stuck on two main parts on it. i wrote a big chunk of code for the total calculator. it adds, sub., multi., or divide the amount of numbers the user puts in and then it ask them to enter them in individually using a loops, radio buttons and a listbox. im stuck on the loop because it will as for the 1st number and the last number heres the [code]......
I'm trying to make a calculator application. Just as practice, as I'm new to visual basic (.NET 4.0) coding. I've got this so far.
[code]...
Note, I've not programmed it to do operations yet, I'm trying to get this sorted out first. My issue is, when I enter my numbers, they do not store as a variable, they both store as zero.
I am making a calculator for a school project, I want to have it so it looks similar to windows calc ( with one button for each number & only one text box),My code has a few blank spots but so far it is :
Public Class calc Private Sub Btn1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Btn1.Click IOBox.Text = IOBox.Text + "1" End Sub
so i am new to v basic and as you can see in the picture below that i have 2 textboxes just to put in them 2 numbers and then do mathematical calcualtions on them and a label up there that shows the answer so i wanted to make 1 textbox to type in the 1 st number then press the symbol for example + and then type the 2nd number and then press equal so the result is formed in the same textbox the only problem is idk how i searched google but i couldnt understand here is my source code
making a general functions class library that will be used in several applications and asp pages, sometimes running at the same time.I've looked at a lot of samples on the web and they all show you to create an instance of the classlibrary namespace or the classlibrary class.
IE. dim obj2 as new mycompany.mynamespace.myclass dim n2 as integer n2 = obj2.somefunction(...)
What I did was create my class library and put a class in it and declared a function as sharred, then created my dll.I don't have to create an instance of it and I can use it like the net framework by just coding
The net framework does this, I mean once I imports it I don't have to make an instance of it in every function.All the samples I've seen about class libraries do not use the shared keyword.
This is my first time programming with visual basic, but the GUI I'm trying to create isn't complicated. So ,after looking at the tutorial for a bit, I got started.What I'm trying to do is run a c++ program which I created, but I'm making the GUI so that other people can use it easily.The c++ program needs arguments, so I have to text boxes on my GUI that will contain those arguments. One is a file path and another is an integer.I'm trying to run the .exe file for my c++ program with a shell script, but I can't get the syntax right.I don't want anything ecial I just want to run the program and pass it arguments. Here is what I have:I'm trying to use a shell command, as you can see.I can run the program from the visual studio 2008 command prompt by typing "cl DataRedux2.cpp" to compile and "DataRedux2.exe" to run.
Ok im going to make a updater for a current program. And I found this code on this website.
Dim OnlineLocation As String = My.Application.CommandLineArgs(0) Dim LocalLocation As String = My.Application.CommandLineArgs(1) My.Computer.Network.DownloadFile(OnlineLocation, LocalLocation) MessageBox.Show("Update Complete")
But i was wondering, once ive made it. How do u actually pass arguments to it.
I'm making a program that can take arguments and run cmd line style. I'm trying to think of a good way to sort and check the arguments. I currently split the arguments into an array and use a loop to assign them to variables.[code]That works but would seriously mess up if someone left out anything. I want to know if anyone has any tips on how to parse the incoming arguments. I always like making my scripts idiot proof, cause at times i mess stuff up.
in my calculator script I'm trying to build I have a putton for pi, named Pi. The text on the button is pi. This is where the problem is. Up until now I've just been adding the value of the button to what I call the DisplayScreen (The textbox that outputs your answers), but Pi is not a number. And I want the value of the button to be Pi, not 3.14 whatever. This is what I have for the Pi
I am new to visual basic 2008, and i started with simple project-calculator. I made it to the point where "+" sign works, and "=" sign execute the command of "+" sign.Now i try to make "-" sign work: the problem is, idk how to bind it with "=". Here is the
Public Class Form1 Dim total1 As Integer Dim total2 As Integer
just Addition only at this time each number 0 to 9 have this code[code].....here what he says..Write the code for the equals button. There's only three lines in total, and here's a little help.
You need to use the other variable that was set up at the top of the coding window, total2. The variable total1 will be added to whatever is total2.The first line of code will be this
total2 = total1 + (something missing here)
Your job is to supply the missing code. In other words, replace "(something missing here)"
Remember that total1 contains the first number to be added. And you know where that came from. The only thing left to do is to add the second number.For the second line of code, you need to transfer the total2 variable to the textbox.For the third line of code, all you are doing is resetting the variable total1 to zero. That's because after the equals button has been pressed, we have finished adding up. If you wanted to do some more adding up, that total1 will still hold the value from the last time. If you reset it to zero, you can start adding some new numbers.
I was trying to make a calculator which takes the amont of copies you want to make and it tells you the cost. Then you type in the amount you want to enter and if its less a message box comes up saying "please enter more money". I've had a few problems
1. when i use formatcurrency the program crashes for no apparent reason
2. if i calculate cost without entering any copies then it crashes (ive tried putting a msgbox in but it crashes anyway)
3. if i get the msgbox to come up saying "Please enter more money" i had to remove the formatcorrency tag.
I'll know where the files are that I need to grab, but I won't always know the exact names. So, I thought I could grab a collection of the files, store them in a variable, and then pass them as an argument.I tested it with one file like this:
vb.net Dim File As New System.IO.FileInfo("C:...Desktop est.txt") Dim proc As New Process proc.StartInfo.WorkingDirectory = "..." proc.StartInfo.FileName = "....exe" proc.StartInfo.Arguments = "-z" & File & "additional arugments" proc.Start() proc.WaitForExit()
But, as you all may already know, I can't use the & operator with a string and FileInfo.Would I have to then convert the FileInfo to a string first and then pass it through?
I am working in vb.net 08.When i will work on the recordset then it will give the error:"Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another."
I am using the below Imports System.Data Imports System.Data.OleDb Imports System.Windows.Forms Imports System.Windows.Forms.DataGridViewColumnCollection Imports System.IO
I want one of my applications to send an HTML email message to a user with a hyper link in it to start up an executable with arguments passed to it. It works fine if I just specify the executable path with no arguments. But if I pass the arguments then Outlook says it can't find the file. Here is the line that I add to the email message body to start the exe only:
I've done it before, so I'm getting a little frustrated on how to get this to work exactly I need to send some arguments to a command line window and I thought I did it this way:
VB.NET Dim p As New Process p.StartInfo.FileName = "cmd"
