Add And Subtracting Numbers
Nov 19, 2009I have a project creating a calculator. I have the "add" function working but have no idea how to do subtract. My professor said once we know add we can do the rest.
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Financial Calculations - Strange Result When Subtracting Numbers
Mar 17, 2011Do a simple thing first... open VB.NET, then open your Immediate Window. And type the following:
? -199037.52 + 198571.0
Its a simple mathematical sum which should return the answer as -466.52, but instead it shows -466.51999999998952. My project which is mainly about financial calculations has gone all screwed up because of these two numbers. All the amounts in my project are based on Double type numbers. Since this calculation is showing a strangest kind of a result, all my program code has gone haywire.
Subtracting One Date From Another
Oct 16, 2009I have a form with 3 txtboxes. The user has to enter their date of birth in the 3 boxes in the form
-DD in the first box
-MM in the second and
-YYYY in the third
I then need to get todays date and take their date of birth from todays date so that I can output to 3 labels the length of time they have been alive in years,months and days.I assume I will need to use timespan? in some way but I am not sure how , or is there perhaps a better way?
Subtracting One Time From Another?
Apr 9, 2010i have a variable [ Dim mytime = "12:30:00 AM" ]
i want to subtract mytime from TimeOfDay and i also want to get the difference as a integer value... how should i do that..
i have added the following code
Dim mytime = DateTime.Parse("1:16:00 AM")
Dim result = TimeOfDay - mytime
dim finalresult = result.Seconds
but it is giving me negative values
Subtracting Times In Vb?
Apr 25, 2012i want to subtract 18 years from a vb date object here's the code example:
Dim someVar
DirectCast(pcontrol, DateTimePicker).Value = Date.Now.Subtract(someVar)
someVar value is ?
Subtracting Days From A Given Date?
Feb 11, 2012I have a DateTimePicker (dtBBDate) and a textbox(txtDBBDate) object in my form....but what i want when user change the date of dtBBDate my text box should show show the date 10 days minus from that selected date i.e. if user select 10 may text box should show me 1st may?
View 2 RepliesSubtracting From Predefined Time Value?
Feb 2, 2009I have a predefine time value of we'll say 1:30 PM. Im wanting to start a process at 5 minutes till 1:30 which would be 1:25. So this is what Ive tried
Dim MyTime As System.DateTime
MyTime = TimeString
MyTime = MyTime.AddMinutes (-5)
[code].....
Subtracting Two Dates In 2005?
May 15, 2011i have employee startdate and enddate, i want to subtract them, then determine whether the employee is active during this period or having one day or two days off or not working after the period finish.
View 3 RepliesSubtracting Two Hh:mm:ss Times Only Shows 00:00:00?
Jul 15, 2011I am trying to create a basic tracker where and person clicks on button1 to display the start time in textbox1, button2 displays the stop time in textbox2 and texbox3 displays the difference between stop / start time. Textbox3 keeps showing 00:00:00 and not the difference between textbox2 / textbox1. I am having difficultly getting the format for the final textbox. I have look at Elasped Time and Parse, but without sucess. I have displayed the code below -
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]......
Subtracting Two List Of Files?
Jan 5, 2011Girl.txt:
Anne
Beth
Caroline
[code].....
Types - Subtracting From A UInt?
Jan 7, 2012I've got a function which needs to take a UInt as a parameter. I'm using the .Net Micro Framework
As a simple example, I'd like to do something like:
Dim x As UInteger
For x = 0 To 100
[code]....
VS 2010 Subtracting 10% From Label1
May 24, 2012lets say i have a label with $50 in it. How do i subtract 10% from the $50 in label1?
I Though it would be label1.text -= 1% but apprently not
[2008] Subtracting A Decimal?
Mar 25, 2009[2008] subtracting a decimal
View 4 RepliesMe.Width Subtracting Out Windows Side Bar
Mar 9, 2011Me.Width is what i am having issues with. I can adjust the width to work on my system but the bar is a different amount of pixels on different versions of windows. I was wondering if there was a function that would give u the amount of pixels the side bar is. I was considering writing some code so look for a color change but people can change the color so i do not think it would work very well. Also the program allows you to draw in a picture box so that would make it hard to get it to work correctly.
View 2 RepliesPrivate / Public - Subtracting Variables
Mar 11, 2010I am a little new to .NET Developing, and have learned a great deal recently, but I'm stuck with something. I come from an ASP Background, I'm trying to subtract 2 variables, but they don't seem to 'see' one another.
[Code]...
Subtracting Time From Date Object?
Jul 15, 2011I'm subtracting hours from a date object like so:
startDate.AddHours(-7.0)
endDate.AddHours(-7.0)
However It doesnt seem to affect the day of the object. My question is this, when subtracting hours from the object does it subtract it from the global date? I.e make "May 7, 2011 1:00:00 AM" into "May 6, 2011 6:00:00 PM" when subtracting 7 hours or does it just affect the hours of the object?
Datacolumn Expression Subtracting Dates And Taking To Datagridview?
Dec 3, 2009datacolumn expression subtracting dates and taking to datagridview
View 1 RepliesForms :: Subtracting A Value From A Text File Via A Button Press?
Aug 23, 2010I have built a program in where I have to add and remove items from two listboxes. Listbox1 consists of a file which I have picked up on my C:/. Within this file, are different lines of items. At the end of the item line is a figure. I have a textbox in where when someone adds the an item from listbox1 to listbox2. On clicking the add button, it will add the total which was in the file. If I add more items, it will give me a running total of the items I have added to listbox2.
Now, I'm bamboozled in how to subtract the items from listbox2 with the remove button. So that when a user wants to remove an item that they currently placed in Listbox2. On pressing remove it will subtract the running total from the item which has been removed.. Here is my code in where I add products to the textbox. I have two other text boxes which I use to have these running totals. FYI, Textbox where value is outputted is Textbox5. Textbox6 is used to refresh the data and the other textbox is named 'Total'.
Public Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
If ListBox1.SelectedIndex < 0 Then
MsgBox("Please select a Batch")
[code]....
VS 2008 Adding And Subtracting Dates Using Datetimepicker Contols
Aug 30, 2009I've got a form with following controls: Two Datetimepickers Two Buttons One TextBox One ComboBox The idea is adding and subtracting dates using Datetimepicker contols... I found codes for doing Dates Calculation but is'nt quit correct;for example: if i want to add 21years from today the result will be: sat 30 Aug 1930 The Adding Codes on comand button: Private Sub BTNadd_Click(ByVal sender As System.Object, ByVal e As
[Code]...
Transfer Of Content Multiple Lstbox On Two Forms/subtracting Finances?
Jun 12, 2012I'm current doing a computer course at college, one unit being event driven programming - for this I must design and program a till interface?
- One being on each form I have a virtual receipt named lstbox, and I have multiple forms! The problem is the content of each form is not transfering to the next virtual receipt on the next form e.g. drinks selection form 1 you select a tea, it adds to the virtual receipt, but when you hit the button to go to the next selection form, the content of the virtual receipt does not carry over. Could you please help me ?
- Secondly, I have a payment form on my till interface which obviously allows the user to finalise the transaction by taking payment from a customer, what would be appropriate code to use for when working out customers change e.g. If you hit a �10.00 button for customers change, and the charge of the transaction is �6.00 - I wish for an output of amount of change to go to the customer!
Note - I have a vat, subtotal and total text box for where the data displays. So whether to take away from the total text box and work out change that way, or to use the correct variables in my program such as itemcost variable, order variable etc.
Events -
- Selection of item -
Private Sub PictureBoxchocolatebrownies_Click(sender As System.Object, e As System.EventArgs) Handles PictureBoxchocolatebrownies.Click
[code]....
VS 2010 - Subtracting - Subtract From Textbox1 And Place The Output In Textbox2
Dec 10, 2011Textbox1 will have the number 0x08800000, It may also be more than one line, so for example;
0x08800000 0x02313823
0x08800000 0xDEADBEEF
0x08800000 0xBEEFBEEF
etc etc
I only need to subtract 08800000 from whats in bold, the rest will stay the same. The value in textbox1 will always begin with 0x0880xxxx I need to convert that to 0x00000000 so basically I need to subtract 08800000 from textbox1 and place the output in textbox2.
Create Another Six Textboxes / Same Time Allocate These Numbers In Ascending / Descending Numbers.
Jun 21, 2010I have six textboxes, and upon button press it randomly generates six numbers, one in eact text box e.g. [43] [85] [93] [1] [0] [17]..i create another six textboxes and at the same time allocate these numbers in ascending/descending numbers.I am not looking for any codes whatsoever, as i love the challenge of VB.Net.
View 2 RepliesProject - Average Numbers, Maximum And Minimum Values, Range Of The Numbers
Apr 7, 2009Im trying to write a program that will do:
1.The average of the four numbers. This answer will be placed into a text box reserved for that value. This text box cannot be changed by the user.
2.The maximum and minimum values. These will be denoted by changing the color of the largest number green and the smallest number red.
3.The range of the numbers. The range is defined as the difference between the largest and smallest numbers. The range will be placed into its own text box, labeled as such. This text box cannot be changed by the user."
Im using visual studio 2008 and it has to be written in VB
Use .next (random Numbers) To Randomly Select Something From A List Of Numbers But It Can't Repeat The Number?
Aug 16, 2009So how would I use .next (random numbers) to randomly select something from a list of numbers but it can't repeat the number?I could do:
dim num as integer
dim r as new random
num = r.next(1,5)
if num = 1 then
elseif num = 2 then
etc.
That wouldn't work because it would repeat.If I donwload someone's game can I disect it in VS? :0 I tried going to open project, then I went to the folder and clicked open. It brought me inside of the folder so I tried to open the game but there is no form1 there. It says the games name then .exe in the explorer-like thing in the top right?Also, how would I have a value or something in a label and access it from a button.
Example:This is in a label.
Dim number as Integer
number = 0
Then in the button do
Label.number = 0
How would I do something like that? I want to use that a lot as I did in a different language.
User To Input Numbers From An Inputbox And It Displays The Total Numbers Entered?
Mar 18, 2011I have a program that allows a user to input numbers from an inputbox and it displays the Total numbers entered, the sum of the numbers entered, and the average of the numbers entered. What I can not seem to find it how to have it display the largest number entered. The code I have so far is,
[Code]...
VS 2008 - Add Two Excel Sheets With Numbers And The Equal (similar) Numbers To Save Once
Mar 28, 2010how can i add two excel sheets with numbers and the equal (similar)numbers to save once
View 1 RepliesBox - Conversion Error - User Enters 6 Numbers In 6 Different Text Boxes - Displays The Larger Of Those 6 Numbers
Oct 4, 2011I am making a program, where the user enters 6 numbers in 6 different text boxes, and it displays the larger of those 6 numbers. But I also want to make it where if the user enters a string value (like S for instance) in the text boxes, it gives an message and says "please enter the numbers again" and the user gets to enter the 6 numbers again. But when I do try to do that, it gives an error message saying conversion from "w/e the user entered" to Double is not valid. If the user just enters the numbers, it works fine. However, I am trying to make it if the user does enter non numeric value, it gives a message window and the user can reenter the numbers again.
Here is my code Example
CODE:
This is where I am trying to use IsNumeric to show a message if a user does not enter a string so the user can renter the numbers again, but when the user does enter a string value (say in textbox 1) it gives me an error message saying conversion from "S" to 'double' is not valid.
CODE:
Then right here this is where I have my series of ifs statements, this part works fine, it displays the largest numbers of the 6 textboxes every time. Error free.
CODE:
And do this with variable number 2, 3, 4, 5.
I know there are easier ways to do these with arrays and stuff. But I am not there yet. I am still learning about ifs and stuff.
Program To Randomly Select Numbers For A Bingo Caller - Prevent Reversed Numbers Being Selected
Mar 6, 2011I have just about completed a .NET project to write a program to randomly select numbers for a Bingo caller. Over the last month or so Ive learned a lot about .NET but heres something that I consider to be odd and maybe one of you guys can offer an opinion.
One of the features of calling Bingo in a small local club is that callers often use little sayings to accompany certain numbers, I expect youve all heard of (say) All the sixes, clickety click for 66 or 5 and 9 the Brighton line for 59 etc. My little program gives an option to incorporate these with a prompt for the caller that can be edited outside of the program. One of these conventional sayings is used when a number is reversed 12 followed by 21 or 45 followed by 54 for example, when the caller might call (say) 1 and 2, one dozen, number 12 And the other way round 2 and 1, twenty one.
So, I programmed in a bit of code to detect this and to over-ride whatever might otherwise have been the quote with And the other way round and set about testing it. Ive been through literally dozens of full 90 calls watching for the occurrence of a reversed number, spent a few hours doing it, and not once has it occurred which is to say the least, unusual.
So, Im wondering about the Rand Function, could it be that it isnt possible for a reversed number to be selected? Just so you know, I randomly pre-select the order of all 90 numbers, I fill each of the 90 elements of an array with a random number first checking that the number selected hasnt already been stored, if it has, I just get the next random number (and check that too of course), but I cant see how that could prevent reversed numbers being selected, especially in light of the fact that frequently it's not the 'next' number that's used.
Generate Automatic Numbers For Order Number And Inquiry Numbers?
Feb 15, 2012am writing an system application for a company that must generate inquiry id and order id automatically. Whenever a customer makes a new inquiry or new order by clicking the add button, an automatic number should be displayed in the text box and when it's saved, it should be saved in the database access.
View 9 RepliesSort Strings With Numbers When Want Numbers Sorted Based On Their Dimension?
Nov 9, 2010How do you sort strings with numbers when you want numbers sorted based on their dimension?
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