got a project from college to create a program for a car company that will provide quote for the loan the client requires to purchase a car. I've created a file which adds,deletes,edits,views all, and a administration section. I need to add the calculations to actually work the quote out. Can either use a case construct or an 2 dimensional array but don't know how i'll do it. Using console application by the way.
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How i can convert this array to an UNLIMITED range array?
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I declared my multidimentional array like this:
Dim invoice_discountitems(100, 1) As String[code]...
Now how i can remove the filled items of this array?
Private Sub ViewDir()
Try
Dim InsertData(9, 5) 'Fixed size array
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I'm used to PHP where I can declare a multi-level array like $something[0][1] = "test";. I need to be able to accomplish the same thing, but I'm using VB.NET. How would I do this?
And sorry if this isn't what a multi-dimentional array is, I might be wrong at what it's called but that's what I want to do.
I am writing a numerical model to perform a set of calculations within a unit, pass the output to a new unit and perform the same calculations and so on. To do so, I have created a complicated set of functions. I have various arrays which store function outputs that are used for other functions within the program. I am trying to modify the language of the program so the functions can be repeated for each unit without literally repeating each code sequence with modified variable identities. For example:
for x = 1 to 5
for z = 0 to 2
y(z) = 3x +6
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Does anyone know how to store data from a RTD server into a array for calculations...?
View 2 Repliesi am writing a query to select all records that are in a month retrieving records from MS Access 2007 in VB.net 2005 select * from Table1 where DatePart(DateInterval.Month,dateReceived)"&comboBox1.SelectedIndex&"' "
but i am getting an error, can u tell me how to solve
I have a problem with this two controls. I have a software in VB6 which send a command to hardware in ASCII type: 170 - head, 3 - numb. of command, CRC.
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i just want to know if i use windows application in vbnet2005, will it be uploaded for web hosting?
if not, what kind of programming language do i have to use, which i can upload for web hosting? because i'm developing an online system.
i m connecting vb.net2005 windows apllication form with the MS Sql server 2005 (which is coming with .net framework) and i m getting problem to verify the user Private Sub signin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles signin.Click
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connection string for vb.net2005 and sql server 2000
View 1 Repliesi am working in asp.net/vb.net I have to copy all files from a folder to another folder through coding using system.io the files should be copied in the new folder with their existing names
View 2 RepliesIam using sql2005 database in vb.net2005
my table's name = tab1
I have 3 fields
1- ID = auto number =primery key
2- IDD = number
3- name = text
now if I add 10 names in the table from (1-10) =1,2,3,4,5,6,7,8,9 ,10
then if I delete name number 6 the IDD field will rearrange it self from( 1-9)=1,2,3,4,5,6,7,8,9 instead of 1,2,3,4,5,7,8,9,10
Iam using sql2005 database in vb.net2005
my table,s name = tab1
I have 3 fields
1- ID = auto number =primery key
2- IDD = number
3- name = text
now if I add 10 names in the table from (1-10) =123456789 10 then I deleted name number 6 the IDD field will renumber it self from( 1-9)=123456789 instead of 1234578910 so in reports and queries the names will appear numberd from 1 to last number with out missing numbers in the middle of numbering I use in MS-Access code which does this perfactly
Public Sub RowOrder()
Dim db As DAO.Database
Set db = CurrentDb
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I have a DataGridView which displays info from a Database. I need a couple of the columns to be able to do basic calculations such as +, - etc - nothing more complicated really. I am a bit stuck as to how to gte this working.I have tried the code below with no joy:[code...]
View 7 RepliesI am doing homework, but i've done the work already. My Issue is, I cannot get my program to compile the calculations for the payments properly. Maybe I'm just too tired to see it, but It should be working from my view. Here is what i have so far...
Module MortageCalculatorWK5
'Loan Amount Input
Dim LoanAmount As Decimal = 200000
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I'm very new to programing and am having problems trying to perform some calculations with a list. I have read in an array into a list with a count attached to each item example: "xxxxxx(intcount)". What I'm trying to do it use two xxxxxx(intcount)'s at xxxxxx(intcount+5) and xxxxxx(intcount+25) and use these two variables to calculate yyyyyy(intcount) but it isn't working. I understand this may be a stupid question but could someone please point me in the right direction.
View 6 RepliesI'm developing an app in which there's hundreds of different calculations involved and would like for my app's admins to be able to tweak these calculations by specifying the formulas.For example, my database table contains price and quantity. One of the columns 'X' might contain "(price * quantity) over the past 7 days". How can I allow my app's admins to change the calculation from "7 days" to "14 days"?
Is there some way to make calculations dynamic within VB.NET or do I have to rely on stored procedures and write some code to alter those procedure if a change is needed? What are the best practices in this type of a scenario?Ideally, I would like to use something similar to the "Tags" box used when posting questions on here to bring up the available fields and add mathematical operators in between them to perform calculations. It might be adding more complexity, but would be great if an existing calculation isn't overwritten so that it could be used in building a new formula.
i used this code to assign the brand dbs to a value of 200
[code]Private Sub xModelComboBox_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles xModelComboBox.SelectedIndexChanged
If xModelComboBox.Text = "DBS" Then
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I have to use some calculations now and then and sometimes those will give me inf, and sometimes they work, this makes my app very inaccurate...Now i dont know what is causing this, im not dividing zero so far i can see..
(3 + Math.Sqrt(5)) ^ ...
It works for single numbers, But how would i retrieve the ?double? of bigger numbers without getting INF?With bigger numbers i mean really big, like 1477014138.
i want to add calculations in 1 private function I have a textbox named lbldisplay.text when i enter a number.. the number is shown as a string so.. -private number1 as string when i press the button "+", "*", "-", or "/" the number1 must return into a double. So the number in the textbox is now a double.. so for example i press the + button, and i need to fill in a new number.. but this new number is also a string!
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I cannot figure out why my calculation is not working. I am doing for 1 to 12 and it gives me 12 inputs but counts my entries as 13? What am I missing. If I change it to 0 to 11 same thing. I am not sure what the issue is, but I cannot see it, and am not sure where to look.I need to end up with 12 cycles through and intEntries to be 12.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'initialize accumulator
Dim decEntries As Decimal[code].......
As part of an assignment, I need to add numbers which are displayed in a rich text box. The numbers are read from a text box. The user needs to be able to input the numbers as many times as possible. Since, the numbers all come from the same text box, I am unsure how to retain the old information and add the new information to it.Since I am not really able to make my point clear, I attach this picture: RTB.PNGAs you can see, I also have a problem with the heading repeating itself. Is there a way of forcing it to only appear the first time?Here is the
Private Sub AddMoreItemsToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AddMoreItemsToolStripMenuItem.Click
'Retrieve number from textboxes
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I got a program I am working on. It does some calculations using quantity and price in such. Heres the calculation module.
Private Sub calculations()
If AdultsizeRadioButton1.Checked = True Then
adulttotaldecimal = quantityinteger * adultpricedecimal * hoursinteger
ElseIf ChildsizeRadioButton2.Checked = True Then
childtotaldecimal = quantityinteger * childpricedecimal * hoursinteger
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Ok, everything has worked when I display the information.... up until the accumprofitdecimal variable. When i display that value its NOT what it should be. For instance i'm putting in a quanity of 1 and an hour of 1 for an adult then for a child, the extended price comes out properly as $2.15 now the code accumprofitdecimal += extendedpricedecimal SHOULD add the extended price (2.15) to the accumulative total. but when i display the accum profit total it shows a number that makes zero sense... is accumprofitdecimal += extendedpricedecimal not correct code?
I have an older program that I wrote some time ago in VB then late updated for VB.Net. The program calculates the ephemerides of comets based on orbital elements downloaded from the Minor Planet Center website. I am now trying to make an iPhone/iPad application using the same idea and the same calculations. Unfortunately I am too new at objective-c that trying to convert the extensive calculations is proving quite difficult for me.
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Trying to figure out how to calculate factorials via loops. Cant seem to figure out where to start when using loops.
View 9 RepliesI am doing a diet program in VB.net and I have 3 forms which have food and drinks as text boxes which can be selected by the user! I have coded them to be sent to list boxes on another form called 'results'. How can I set it up so what is selected on each form is added to a list box then adds up the calories etc. form what the user selects. I have made a calculate total button to add whats in the list boxes and I need to show the results to the user! How would I go about coding how to do this?
View 6 RepliesI was working with a calculator i made.. and then i was thinking of making all my calculations to be displayed in the listbox..Here is my program for the calculator..
Public Class Form2
Dim Nm1, Nm2, nnn As Long
Dim Opr As String
Dim FF As Boolean = False
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I am unable to get the correct calculations out of my variables. If I input say fgh2 and enter 5 for monthly sales everything displays fine. enter fbd2 and 5 for monthly sales again everything is fine I get a result of 10 but as soon as I deviate from that formula like ftp1 and 3 in the monthly sales textbox it comes back as 13 in the newCarLabel when it should be 3
Option Explicit On
Option Strict On
Option Infer Off
Public Class MainForm
'global variables
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