Creating A Calculator/ With Totalling Values
Apr 19, 2009
Since it's been a while since I have done anything in VB and I wasn't that accomplished anyway, I thought I would VB.net (VB 2008 Express) and fiddle around with it. I am in the process of making a calculator, which so far only adds...the other functions will come. The adding is where I am having difficulty. Here is what I've got:[code...]
I am not adding the right things...I know, but I am running out of ideas...too tired, but can't stop now. Just too close to have one function of the calculator working.
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Dec 2, 2010
i am creating a backspace key for a calculator. first of all a currency needs to be chosen by clicking a button, when for example the is clicked the text is entered into the texbox. But when i use the backspace it deletes here is my code..
Private Sub btn_pound_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_pound.Click
'Enable the keypad when the pound sign is clicked,Disable the curency buttons after'
pnl_numbers().Enabled = True[code]....
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Dec 8, 2010
i am going creating a simple function calculator, but I had to first do a design documentation proposal. I now have to update the project proposal with a storyboard or list of menu and screen items to delineate my proposed user screen and menus.aside from the calculator itself there will not be any menus.I also have to list any user data inputs and outputs my application will require and produce, which i assume i can put any numbers that the user inputs into the calculator and their results.
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Dec 9, 2009
What code to use in a payroll calculator I am making. The requirements are
1. Name of employee.
2. number of hours worked
3. pay rate
4. percentage of state tax.
5. percentage of federal tax.
6. percentage of FICA tax.
How I would go about this.
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Jan 7, 2010
I'm completely new to programming and wondered if you could help me. I've designed a simple calculator that can add numbers together but am now trying to create a subtraction button. This seems more complicated, I've searched various forums but am a little confused and wondered if any of you can help or point me in the right direction. Here is the coding I've done for the Add button (cmdPlus):
Private Sub cmdPlus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdPlus.Click
[Code]...
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Sep 24, 2010
I am creating a VB 2008 change calculator as an assignment. The program is to use the amount paid - the amount due to calculate the total.(this is working fine). After that, it is to break that amount down into dollars, quarters, dimes, nickels, and pennies. The problem I am having is that sometimes the quantity of pennies, nickels or dimes will be a negative number. For example $2.99 = 3 Dollars and -1 Pennies.
Option Explicit On
Option Strict Off
Option Infer Off
[code]....
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Feb 17, 2010
I'm creating an amortization schedule for my mortgage calculator and I'm having a problem with a loop.
[Code]...
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Jan 14, 2011
I did a calculator program in vb.net,in which the input can be given through mouse.I don't know how to enter it through keyboard.
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Nov 6, 2009
I have a text file that contains 10 integers in a list format
21
15
11
9
61
45
36
97
84
11
I wish to create an application that will:
A- Display the list
B- Allow editing of the list
C- write the edits to the file (display error message if not integer)
D- Display a message box that displays the sum of the integers is the list
E- Re-Total the integers in the list automatically as edited in the text file display.
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Jun 21, 2010
I have set up a series of loops to construct a series of tables dynamically using a cloned table. Each table represents the output for a particular year. These work fine and create the correct output. However, I want to put the total of a particular column in these tables into textboxs on my form.
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Aug 12, 2011
I have made my calculator and it has 2 textboxes where the 2 numbers (or values go for addition and subtraction) are input and a label where the answer appears. There is other things on the page such as quit, clear etc thats all done but i have one query. I noticed while testing a problem occurs when only one number or value is put into a textbox and a command is hit. For example. one textbox (txtnumber1) has one number in it then i hit multiply and it says the error of course because its not programmed to deal with this (or divide by 0 of course) so i was wondering how i could make so when this happens a MsgBox appears saying a value must be in both boxes or when divded by zero is says something similar.
The line of code:
Private Sub blah blah blah...
If txtnumber1.Text = False Then MsgBox("Please Input Valid Value")
End Sub
I however have not been able to make it work.
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Mar 2, 2009
creating a mortgage calculator that display continuous information depending on the user input such as monthly payments, remaining balances, and interest paid. I am attempting to use a list box and am currently stuck. [code] Please use code tags when posting your code. Code tags are used like so.
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Dec 30, 2009
please tell me what is below code doing? is it creating array with two values or its creating to string index which will take value later? [code]
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Sep 2, 2011
To pass decimal values to radio buttons so I can calculate an output answer. it is a tip calculator. I am using radio buttons as options to choose what amount to tip, ie. 10, 15, and 20%. I need to figure out how to pass the value to the buttons in code so I can calculate the tip amount.
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Feb 21, 2010
I would I have a program that I use in the computer in my network, but for every user I need to edit the source to this user, thus the user cannot edit his information, just use the program how it was ... So, looking over the internet I found a "program" that may contains my solution... Its a Keylloger, I'm not meaning use this keylogger, no, but it has a a very interest feature: I use the main form to edit the information then after all it create a new program with the new information inside... I use my main program to create every userprofile then my program create a new program with the profile inside...
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Feb 23, 2011
I have created an array of 6 numbers which are randomly generated, I can create a graph using six randomly generated numbers, however what I want is to use the random values that are placed in the array to create my graph, I have enclosed the code that I have:
Private Sub btnGraph_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGraph.Click
txtAns.Text = ""
[Code]......
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Oct 26, 2010
Here's what I have so far. It is not incrementing in the loop as it should. Can anyone point out the wrong thinking?
Public Class frmMain
Dim lvi, lvi2 As ListViewItem
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.lstPopulation.View = View.Details
[code]....
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Mar 29, 2011
This code works, as is, on my system. Problem lines are commented out. The last three commented lines are the problem.It creates the objects alright but a line that should send a message into the list box doesn't work. I am almost sure that the problem is in passing information into the sub routine. Forgive my use of ALL CAPS as it helps to see my comments on comments. A few comments in passing information to SRs would be helpful.
Also, how it is that I can comment out the .Name option and it still works?(I hope that this shows up properly. If it ends up as a big useless paragraph, I will repost it after learning how to do it properly.
Here is my
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' -------------------------Create ann exit Button -----------------------------------------------------
Dim btn As New Button
[code]....
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Oct 22, 2011
This is kind of a brain twister. First, what it involves. I'm writing an application that is working with values sent to and received from an 8 bit micro-controller. There are 8 bits of specified values. Here they are. bit1 = 1, bit2 = 2, bit3 = 4, bit4 = 8, bit5 = 16, bit6 = 32, bit7 = 64 and bit8 = 128.I made a routine that uses 8 checkboxes to add the values for sending them to the micro-controller. That wasn't too hard. In my appp there are 8 checkboxes. Each checkbox assigns one of the specific bit values to a variable (or subtracts it when unchecked). The total of the variable is then displayed in a textbox and ready to send.Now the hard part that ed to take any number between 0 and 255 apart in values that will be a combination of the numbers (1,2,4,8,16,32,64,128) above and show each checkbox which is assigned those numbers to be checked.
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Apr 15, 2010
I'm creating a calculator in visual basic 2008, and with this calculator I want to implement a feature that can store numerical values in a variable for instance x. Similar to the feature used in most graphing calculator that have the button showing: "STO->". I was thinking on using the My.Settings. But I'm having trouble on it.
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Jan 22, 2010
I have this:
If (TextBox1.TextLength > 16) Then Return
But I want to add a beep to how can I do it? I mean I can only Return and I want to use Beep() too.
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Jan 29, 2009
I've made a simple calculator, everything works except for the adding (+) function. Such as 3 + 4 = 34 (which it doesn't). It takes it as a string, rather than a number.
Here's what I have so far:
CODE:
Again, the problem is the adding is not functioning.
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Oct 11, 2009
I am doing a tutorial for a simple calculator. My question is how can I add code to make a botton that add my tax % to the total amount I have.
Option Explicit On
Public Class Form1
Dim firstnumber As Single
[Code]......
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Dec 7, 2009
The comma/dot may appear only ones. How do I modify that within this code??
bpuntingedrukt as boolean
Private Sub VoegCijferToe(ByVal sCijfer)
If Len(lblDisplay.Text) > 15 Then Exit Sub
If sCijfer = "0" And lblDisplay.Text = "0," Then
[Code] .....
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Jan 11, 2011
Okay, i have two questions i will merge into one.I am using Express, just in case its important
First of all, i am trying to create a calculator using Visual Basic, which will end up being a lot like the 'Calculator' application built into all Microsoft computers.
I am having trouble however, with adding more than one thing to a text box.
[Code]...
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Jun 18, 2012
i have to finished a cacluator, all my code seems to be working apart from the equals button and i do not understand why..i've tried several different things such as a case too but nothing seems to work to get the equals button working. This is my code, no need for all the buttons they are the same and ive declared variables.
[Code]...
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Mar 30, 2012
Sorry in advance. I emailed myself my coding since I don't have vb on my personal computer. Sooo, the format is going to be off. But my program allows the computer to generate a random date. The user has to guess what day of the week the random date lands on. I have written the whole code. It all works except when user checks his/her answer. The answer always comes up as incorrect. Here is the coding:
[code]...
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Jul 13, 2009
I want Dosage Calculator in c#.net for my module completion.
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Dec 17, 2009
I want to build a calculator, i want to learn vb.net myself so i contacted you.
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Apr 3, 2009
how to code the calculator?
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