Cleaning Up Code With Functions?
Nov 28, 2010
I am just starting out with a practice VB project which involves selling donuts and coffee. I have written out the code which the program works but the code is very messy. This program contains functions and radio buttons to calculate a subtotal, tax, and total due. There are four variety of donuts in Group Box 1 listed as: Glazed at .65 each, Sugar at .65 each, Chocolate at .85 each, and Filled at $1.00.
The coffee choices in Group Box 2 are listed as: None at 0.00, Regular at $1.85, and Capuchino at $2.50 each.I want the cashier to be able to select a radio button to choose between the donut choice in group box 1 and then choose one coffee choice in group box 2. A textbox calculates the subtotal, a textbox calculates a tax of 3%, and a textbox calculates the total due adding the subtotal and tax.
Everything works fine but Ias I said before it is quite messy which I keep making it worst.I need to write one function to calculate the donut, one function to calculate the coffee, and one function to calculate the sales tax. Then I need a sub procedure to clear the subtotal, sales tax, and total due amounts when a radio button is clicked.I have been working on this for the past month ,code I have so far:
Class frmMain
Private Sub btnExit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExit.Click
Me.Close()[code].....
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Mar 21, 2012
I have a question regarding VB.net and the use of rsData connections to an SQL database.Basically we have a few inline pages that will display course information of courses that my institution runs. The code will connect to an SQL DB and pull through live data directly in the following format.
html += "<tr><td>" & rsData("M_Start") & "</td><td>" & rsData("WEEKS") & "</td><td>" & rsData("DAYSTIME") & "</td></tr>"
Now I was wondering if people would suggest pulling directly from an open DB connection or map the RsData results to strings? All data connections open and close after they have done their required portions and we have around 5 different procedures that occur within the page.
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Jan 6, 2012
however there is a portion in this code that can be simplified more (the if orelse statements). I know it has something to do with a collections class or an array, but I'm stumped on how to change it.
Function GetLastName(ByVal accountName As String) As String
Dim lastName As
Dim stringArray As Array = accountName.Split(" ")
[code].....
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Dec 6, 2010
What I am trying to do is have a class where the functions of the same name are both instance functions and shared functions.
Public Shared Function Get...(byval xx as xx)
and
Public Function Get...
The Public Function uses a Property xx created in the constructor, whereas the Shared Function has the parameters (byval xx as xx).
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Apr 4, 2010
I am currently working with an IPhone API which consist of about 40 pages of aspx along with their respective aspx.vb pages. They are all partial classes because the API continues to add other phone platforms to it. Currently I have them residing just in a folder. /API/0.1 and /API/1.0..How would I call the functions from those IPhone API classes without having to put them in the App_code? [code]How do i use that function in a webform? or do I need to put it in App_Code? [code]
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May 18, 2012
how to write the this three function in c#:
Randomize, Int ,Ran()
Randomize();
// This is my VB Code
for ( ; (KeyOK(sKey) == false); )
[code]....
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Feb 7, 2011
I have the following string which I need to get onto one line for database storage and retrieval purposes:
{"id":8,"heading":"heading goes here","content":"<p>
content goes here</p>
"}
[code].....
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Jul 20, 2010
Basically if i wanted my controls to be checked at startup id use a setting obviously
'UI Settings
chkCloseToTray.Checked = My.Settings.CloseToTray
chkAlwaysShowSystemTrayIcon.Checked = My.Settings.AlwaysShowTrayIcon
[code].....
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Jun 22, 2009
if i have a string like 12.4.23 how can i clean the dots? i want 12423
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Nov 21, 2011
I've been making a game using a Console Application as the main window, for the it. The game requires you to make the right choices in a mini Hacking adventure, but I'm rather stuck in an area where the player is required to enter the name of the file they would send and the program does not recognize the right one, also I was wondering how I could tidy up my code as It seems to be growing at a unnecessary rate.[code]
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Sep 11, 2009
first, what is the base minimum that windows needs open to run... ex. svchost.exe, explorer, etc.
Second. is there an easier way to close all programs except the ones i want to stay open, i want to keep the needed basics open and my program, which will open other programs, but i want to make sure nothing else is running so that things will go as smoothly and as fast as possible. I just don't want to manually check what processes need killed and place them in the program one by one, i want to kill all but a few.
Extra credit... stopping all unneeded windows services would be nice too, but that would probably be too long of a process to worry about, and not really worth it considering the benefit of speed it would give.
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Feb 13, 2010
I have a program and the program works fine. The only thing is that I want to shorten it up and stop using the same code over and over. I use the same redudant code through out the code. I want to write some functions in order to stop from having to use the same code over and over in my program. I wanted to know if someone could help me with functions: Here is part of my code below.
[Code]...
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May 5, 2012
I've rearranged the error messages to different spots with no luck. The txt row need to be a number 1 to 10. The txtSeat need to be A,B,C, or D and the txtPassenger shouldn't be left empty.
Public Class Form1
Dim seat(9, 3) As String
Dim waitingList(9) As String
Dim passengerNames(9, 3) As String
[code]....
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Dec 3, 2009
I'm comparing a temporary table to an another table, to check for changes in the cells. The way I'm doing it, is that I'm using three loops; one to loop trough the temporary, one to loop trough the other table and a last one to loop trough each column. Here's the
vb.net
For Each row As DataRowView In View
For Each drow As DataRowView In view2
[Code]....
"emitid" is the column I use as a reference to be sure that I'm comparing the correct rows, and the column order will always be the same in both tables.
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Jan 24, 2012
I have created an application that would calculate NFL rating based on statistics pretty much everything is correct but how would i seperate the public function into multiple private one's while still performing the same actions? Example, Private Function CPA( Rather than having a single public function witch performs every step needed
Here's what i have
Dim intcomps As Double
Dim sngInts As Double
Dim sngAtt As Double Dim intcomps As Double
[Code].....
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Dec 28, 2010
I am very familiar with modules from my time with VB and my other programming, but what is the most commonly used practice and the best way to go about this for a website application with ASP.NET? Say I have multiple pages (in multiple directories; some in the root directory, some in child directories from the root) that will call the same set of functions and subroutines, how do I go about putting this reusable code in a place where the pages and their respective classes can call the functions/subroutines?
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Nov 19, 2010
In order to multithread correctly, so that my UI gets updated and the background code functions correctly, I've been doing this:I have one sub that does the UI updating and checks for invocation: [code] However, I need to update the UI within the Class now. When I do that, my app is no longer responsive. I need to do all UI updating within the form class and all background code within my custom class.I just can't figure out how to determine at what part my class is at, to update the UI.The UI has a few labels and a picture box that needs updating. As it runs a new process, (about 8 in all) I need to update the picture box and labels with the appropriate information so that the user knows where the app is at.
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Nov 11, 2010
Not sure if this has been asked before (couldn't find an answer), but is there a way to reuse a user.config file from a previous version of the application? For example a user.config file is stored in:
C:UsersJohnnyAppDataLocalCompanyApplicationName.exe_Url_wxcnyrmstqy3oj1qwckdjq3gjqkq4fel1.0.0.0user.config After a new version is installed it gets stored in:
C:UsersJohnnyAppDataLocalCompanyApplicationName.exe_Url_wglmejvw01nagu5t1y5yl12chynjomny1.0.0.1user.config The user then has to enter all settings again, even if the new version does not save more settings. An other problem is that although the user.config file is very small, it does get messy after a while when newer versions of the application get installed. Is there a way to clean up the unused user.config files and their folders?
It's the same problem with System.Windows.Forms.Application.LocalUserAppDataPath, that I'd like to use to save other files (containing Listview data), which points to:
C:UsersJohnnyAppDataLocalCompanyApplication1.0.0.0 The Listview data and other files created by the app can't be used anymore.This can be solved by getting the user's appdata folder with Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) and creating a new folder there with the name of the application. But this means there's one folder where the application is installed (user can choose this folder in the installer), one folder to save my own files to and one folder where VB stores the user.config file.
Can something be done about this "mess" or is this just something I have to live with?
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Jan 7, 2010
How can I execute a piece of code at set intervals without using functions or timers?
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Jan 29, 2007
1) Is it possible to access the Excel mathematical functions without actually opening Excel?
I was thinking of through a DLL WinAPI call or maybe a delegate function or smaller program?
2) Does anyone know of a MS link or area that gives instruction on "how to" use every function of every Windows DLL at all?
Or for all those that Microsoft have chosen to document online at least.
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Mar 1, 2010
I need to create unit testing project for my current website. The currentw ebsite si written in VB. All unit testing examples are using interface to create mock object. My current VB class does not implment any interface. Can I add interface and implement it to my current class and functions without affecting or changing codes to any pages in my website that call the functions? For examples my current class is like:
[Code]...
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Jun 2, 2009
I created a class library containing some properties and methods, when I call a specific method that runs a sequence of tests, it reports "out of memory exception". When I take the same code and build a form.exe, I do not get the "out of memory exception".
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Feb 19, 2009
While converting types, I have found myself using both VB functions and BCL Convert.To* methods.
E.g.)
Cstr() vs. Convert.ToString()
CInt() vs. Convert.ToInt32()
CDbl() vs. Convert.ToInt64()
etc...
Are there any subtle differences that should be noted?
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Mar 4, 2009
Is there a way to see exactly what the functions are doing. What i mean is there a way to see the class? I know what it does, i just want to know the code.
For example the function: Membership.FindUsersByName()
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Apr 21, 2010
I got a timer that saves like cache in a map and cant delete really cause it updates so quick that if i code to delete the folder and create a new emptey folder it craches cause "im already running /using that file"
Some one got an idea how to clean up? cause afterwhile it take a lot of space If you donīt Believe in it, Then it Doesīnt Exist!
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Jul 1, 2011
I'm redoing a program for my company and my boss wanted me to created the entire thing through functions...
For the task I wanted to know is it possible to have functions within functions?
Sort of like in C where we would have nested structures?
Its a FILE I/O, with robot commands, moves and verifications....
So I would find the line in an excel spreadsheet where it moves, the coordinate, put it into an array.
Take the actual results store them into a two dimensional array...etc, etc....
Another function would eventually compare the results with the moves, and within a tolerance.
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Oct 26, 2009
When you refrence a Function like this one:[code]You may want to be able to get more out of that, like this.[code]So how would I be able to add subs or functions onto a sub or function like that?
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Dec 8, 2011
I have some code to execute code at runtime...
Here is the main
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
If TextBox1.Text.Trim <> "" Then
If TextBox2.Text.Trim <> "" Then
[code]....
When the button is pressed, it all works and the following files are created: yahoo.dll and yahoo.pdb My question is this: What is the code to load the already compiled yahoo files to execute the code again, without having to recompile the code?
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Feb 1, 2011
I have made quite a good library for calculating Math problems like Quadratic Equations and many other. Now I met a friend, and hes programming a little in VB, and we were thinking if it is possible to import my functions from C++ to his code, so he can call them, when they are needed, so we can make a calculator? How can we do that?
Edit: My friend is using VB.net
Edit: My library is organized in free functions.
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Jul 27, 2010
I am not sure if i am using these in the correct manner. Basically i have an app that downloads a file from an ftp server (i am kinda cheating cos i am using chilkat). Now if i put the code directly in the form i can get it to do a progressbar.value = ... in it['s own sub.What i decided to do was stick my ftp download parts into a dll i created. Created a function within the dll and i have a return on that which returns the message 'file downloaded' or 'no file to download'. But can i return a value to update the progress bar as it goes when the code is contained in a dll? Or am i totally missing the point and how to use dlls?
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