# Compound Interest Calculation?

Feb 6, 2011

Im a little stuck with the Compound Interest Formula.

My code returns
0.00 :L
Dim amount, interest, monthly As Double

[code].....

## Make Compound Interest Loop?

Dec 5, 2011

I have to create a Compound Interest Loop where I input a Mortgage amount and Mortgage Term (ie how many years the mortgage will span into another.) into two textboxes.

## Asp.net - Linq Select Compound From

Apr 16, 2009

I'm experimenting with linq compount selects. I find the following query not to return any element:

Dim q = From s In d.GetChildRows("DossierSinistri") _
From i In s.GetChildRows("DossierIncarichi") _
Select s

[Code].....

## DB/Reporting :: Searching DataTable Using Compound Key?

May 8, 2008

I am trying to search a datatable using a compound key. I can create the compound key just fine, but when I go to create an object to pass to the find it give me an error. Below is a sample of my code.
dim lblDT...etc...

Here is where I create the compound key, and it seems fine.
lblDT.PrimaryKey = New DataColumn() {
lblDT.Columns("serialno"), _
lblDT.Columns("type")}

This is where I am trying to create an object to pass to the .find
dim objSearch As New Object() {10643, 28}
It if would work this is how the find would be.
Dim row As DataRow = lblDT.Rows.Find(objSearch)

## Compound Primary Keys - Using Update Commands. How To Increment?

Apr 2, 2012

EDIT: was a design issueI am undergoing a computing project for Alevel computing.The project consists of a 6 tabled Microsoft access database. I am using vb.net to code the application for a student tracking system.My ERD is below:My problem: How to insert a new compound Primary key into a existing table?If I increment StudID and CourseID in tblContact then I need to increment them in tblStudentCourse which leads to records not pointing to the right directions..For enforcing the relationships I am using the .relations with the dataset.

'Student - StudentCourse

[code].....

## VS 2005 Store A Calculation To Use Later And Obtain A New Calculation

Dec 19, 2009

I need to store a calculation to use later and obtain a new calculation

[Code]...

## Add 1% Interest To The New And Used Rates When DP Is Less Than 20%?

Mar 26, 2012

I need to modify this code to add 1% interest rate to the new and used rates when less than a 20% down payment is made.

Public Class Form1
' Class-level constants
Const dblMONTHS_YEAR As Double = 12 ' Months per year

[code]......

## Calculating Interest In .net?

Jul 27, 2009

I,ve completed a program for a debt solution agency that calculates the amount a client can afford to repay after all his deductions and general life costs, my proplam however is at the end when i have to display all the creditors on a proposal data grid that shows the amount and total months to repay all creditors and calculates the amounts as one of the creditors debt is paid up and that monthly installment is devided between the remaining creditors.

## Add 1% To Interest Of New And Used Rates When Less Than 20% DP Is Made

Mar 26, 2012

I need to modify this code to add 1% interest rate to the new and used rates when less than a 20% down payment is made.

I've already added in the constants for the increased interest rate, but hit a wall there.

Public Class Form1
' Class-level constants
Const dblMONTHS_YEAR As Double = 12 ' Months per year

[Code].....

## Calcuating The Interest On A Loan?

Feb 19, 2010

I am trying to program that is based on calculating the loan based on the balance of an item after the deposit. Then I must display certain information in a listbox. I am having a problem

Dim cartype As String

[code]....

## Componding Interest Over 10 Years?

Mar 22, 2009

I am stuck, I am doing a Case Statment and this loop to calculate pay per hour and thexpected raise percentage on 40 hr week @ 52 wks per yr. THe raise increase each amount after the first year.The display for next 10 years is the head bump. Any suggesions will be tried. In this loop trying to get the 1 year values to add the intrest rate to the following 10 years is something I can not seePrivate Sub btnCalculatePay_Click(ByVal sender As System.Object, ByVal e As ystem.EventArgs) Handles btnCalculatePay.Click

## Interest Rate Calculator With Validation?

Mar 11, 2011

Im creating an interest rate calculator that will make sure the principal is a positive amount, retrieve the interest rate from the interest rate:numericupDown function and will leave a message in the resulttextbox.This is what i have so far:

Public Class InterestCalculatorForm
' handles Calculate Button's Click event
Private Sub calculateButton_Click(ByVal sender As System.Object, _

[code].....

## Pmt - Calculate Total Interest Paid?

Apr 13, 2009

I have successfully written this interest calculation, although it is based on the ppmt function and adding up the interest from each payment. This is quite a long looping process.. And it is not accurate because of the rounding of each payment. I was wondering if someone knows if there is a formula I can use, or if the pmt function is capable of this? (e.g. Mortgage payment - total interest payable over 30 years at 5% ( principle and interest repayments))?

## VS 2010 Interest Rate Limitation?

Feb 14, 2012

I am working on a program that takes a present value, multiplies it by an interest rate (between 1 and 25 percent), multiplies the resultant answer by a specified number of periods and produces a listbox breakdown of value accumulation for each period. I was doing just fine. UNTIL. yeah, until......I don't really know when...... I am trying to specify that the interest rate must be between .01 and .25 (user has to enter it as a decimal on the GUI) or a Message Error box pops up. However, it seems that everywhere I drop my code, it doesn'

vb.net
Private Sub mnuClear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuClear.Click

[code]....

## Loan Amount Interest Rate (Term In Year)

Jul 6, 2009

I am writing this program for class its supposed to be able to accept loan amount interest rate amount and the term of the loan (in years) and then output how much interest you owe and how much in total you owe.

Here is my code:
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Class Form1
Inherits System.Windows.Forms.Form
'Declare Variables
Dim loanAmount As Double
Dim interestRate As Double
[Code] .....

I copied the whole code as to I do not know where the rros are. My error keeps saying 'class' statement must end with a matching 'end class' I got a feeling this is something like if/endif but I cannot find it.

## VS 2008 For Loop - Annual Interest Rate Calculator

Dec 9, 2010

I am working on a calculator that does the annual percentage rate. The code has to use a For Loop (which I am new to). This is the code I have so far.

[Code]...

## Logging The Time A New Record Was Created And Added To The Database And Then Adding Interest To The Balance?

Feb 18, 2009

Hi how's it going. In the middle of coding a banking application for a project. Part of it involves mortgage interest repayments. Was wondering if there was any way of logging the time a new record was created and added to the database and then adding interest to the balance owed periodically every 30 days..

## PMT Function - 20% Down Payment 2.5% Closing Cost Cash Required To Close The Loan Principal And Interest

Feb 8, 2008

I need to code this with 20% down payment 2.5% closing costcash required to close the loan Principal and interest can be computed by call the PMT function, terms 30 years (360 months 2.5% Property tax 0.8% insurance monthly payment is equal to the sum of the principal and interest, property tax and insurance.

I have attached my project.

I am not getting any input from my teacher and the book does not say much about this

Attached File(s)

## Add Vat To A Calculation?

Mar 9, 2009

Heres my code in vb 2008[code]...

I need to add 15% vat to it and i have no clue how to add the 15% vat.

## Calculation Of Age?

Aug 29, 2010

compute an exact age of a person using the format date of mm/dd/yy... in vb.net, i was trying to code it but the result was not the exact age of the person.lp me...

## 'if / Else Calculation Statements

Oct 6, 2010

I am using Microsoft Visual Studio 2008 with VB.NET, and in class we were assigned this project: A procedure should calculate a 2% price increase on all red shirts, but a 1% price increase on all other items. In addition to calculating the price increase, the procedure also should calculate the new price. You can use the variables strItemColr, strItem, decOrigPrice, decIncrease, and decNewPrice. Format the original price, price increase, and new price in the lblOriginal, lblIncrease, and lblNewPrice controls, respectively.

## Calculation In DataGridView?

Sep 12, 2010

I have datagridview, wich have 5 columns

example:

id        supplier          bought           payed            sum
1             a                      15
2
2             a                      20

[Code].....

## Calculation In Function Is Different?

May 8, 2011

i have an issue with my program. when i create a function and use a calculation in it it returns a wrong answer. if i copy the calculation and put it directly in the btnClick event it works ok. is this normal?

here is the code if you would like to try see what i am doing wrong.
Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click

[code].....

## Calculation In VB - Keep Getting An Output Of Zero

Aug 21, 2010

I'm having trouble with a calculation in VB and it's a simple one but for some reason I keep getting an output of zero.

Here's the code for the calculation and the click button:

CODE:

## Calculation Of Amount Due?

Apr 15, 2012

i have this problem on how to calculate the amount due in our system in VISUAL BASIC.NET .in returning module, (this is for penalty purposes), if the borrower didn't return the book on time, the system must automatically generate the amount due .one daY is equivalent to 10(ten) pesos.so if the borrower didn't return the book with 2 days. the amount due must be 20.00 pesos.

## Calculation Of Two Fields In ASP.NET ?

Jan 5, 2011

I have two money fields in a SQL database called TotalClaimed and PartialSettlementAmountRecd.They are declared as Decimals like so:

Public PartialSettlementAmountRecd As Decimal
Public TotalClaimed As Decimal

They both output the repsective amounts perfectly. I need to do a calculation on them, by subtracting PartialSettlementAmountRecd from TotalClaimed. I have tried the following, but it just outputs a random number, not the amount I require.

Dim NewSettAmount As Decimal = (ClaimDetail.TotalClaimed) - (ClaimDetail.PartialSettlementAmountRecd)
Response.Write("New Settlement Amount: £" & NewSettAmount)

## CRC-16 Calculation On An Array

Feb 1, 2012

I found this thread in regards to calculating CRC16 on an array.... however, it does not work probably because it was written for VB6 and not .NET. [URL] Does anyone know of a built-in function in .NET to calculate CRC16? If not, is there a way I can adapt the above VB code example to work with Visual Studio 2010?

## Doing A Calculation Between Textbox?

Mar 15, 2012

what i am trying to do is i have two textboxs which have figues in them and need the 3rd textbox to display the figure the code i am using doesnt seem to be doing anything could anyone spot it and tell me why it is not working for me

[Code]...

## Doing Calculation Between Textboxs

Mar 17, 2012

i am trying to do is i have two textboxs which have figues in them and need the 3rd textbox to display the figure the code.[code]I want the answer doesnt display in the textbox as i want it but when i click on the text box nd type anything the answer shows but in the error

## Factorial Calculation Using .net?

Dec 15, 2011

Develop an application which reads two integers n1 and n2 from the user via two textboxes and displays in a label the sum of the factorial of the integers n1 and n2?

## Get More Accuracy In Calculation?

Jun 9, 2011

I'm writing a financial calculator. I know that my calculations are more precise when Decimal format is used. But when I calculate 314/365, the answer given by VB is 0.8602814581, where as the real answer is 0.8602739726. This ends up affecting my calculations quite a bit.

## Math Calculation In Vb?

Jan 27, 2012

I am trying to perform a simple multiplication in vb.

Below is my code:

Dim minus As Integer
Dim minusPrice As Integer
Dim totalPrice As Integer

[Code].....

## Progress Bar With Calculation?

Aug 25, 2011

I have an array of characters. Depending on the number selected (between 1 and 30), the program selects random characters and concatonates them into a string. Kind of like how I think a password generator would work.I want to update a progress bar to show how the operation is going, but I need to reserve 20% of the progress bar for some actions before this, and the last 10% for the actions that follow it. So there is 70% available to use. My question is:If I set the progress bar to 20% and do the following math: 70/NumOfChars, then use a for loop to add the result of this to the progress bar (pb+=result), why does the total progress NOT EQUAL 90%!

## Use Numericup / Down In Calculation?

Nov 14, 2008

I am trying to figure out how to take what the user selects in the up down menu and use it in my calculation.

## Use One Comma In Calculation?

Jan 30, 2010

I made a calculator but I want to use only one time a comma (,) and after I put for example a minus(-) sign, it will enable the comma again.

## Using Functions To Run Calculation?

Sep 11, 2011

I'm trying to work on code where I enter number of hours into a textbox (txtHours) and then EITHER you press a button (cmdPay) and then the income for the week is calculated and shows up in a second text box (txtPay) OR txtPay does the calculation itself, everytime a number is typed into txtHours.

Currently, my code is trying to do the former, because I have NO idea how to even approach the second option.My problem I am having with my code, is I don't know how to properly dim my parameters, since my "button_click" code keeps coming up with this error:Argument not specified for parameter...

Public Function PayTotal(ByVal cnthours As Double, ByVal standpay As Double, ByVal overpay As Double) As Double
cnthours = CDbl(txtHours.Text)

[code]....

Apr 7, 2011

got a project from college to create a quotation system in console application for a car company. The program has to tell the customer how much interest they'll be charged and the loan they take out.I've created a file that Adds,deletes,edits customer. Also views all customers. The problem I have is that after I've added the customer. I need to now implement the calculations into my program to then give them the quote. Also need to add a password to the program.

## Apply Calculation To A 2d Array?

Mar 23, 2012

I have a 2d array and I want to do a calculation on each element in the array and then return the index which results in the smallest value.

I have tried iterating through each element in the 2d array and running the calculation. If the calculated result is smaller than the currently stored minimum I set that to the minimum.

This works but it runs so slowly it makes the solution a non starter. It performs each calculation quickly but because of the number of elements in the array the calculation for the whole array is stupidly long.

## Array Calculation With CSV File?

Dec 4, 2011

I am trying to work with taking in and parsing CSV files. Right now I have it taking in and producing something like this:

The program loads the csv and copies the data into an array as such:

ReDim strarray(num_rows, num_cols)
For x = 0 To num_rows
strline = strlines(x).Split(",")

[Code]....

etc. I guess my main problem is trying to perform calculations to all values in a specific column. To start I am just trying to figure out how to isolate the columns and found that by using MsgBox(strarray(x, num_cols)) it will msgbox everything in the second column twice. I just want to try and understand how I can perform a basic calculation like multiply every value in the first column by 2 and every value in the second column one by 3.

## Asp.net - GridView Calculation On Runtime

Dec 10, 2011

I have a Grid With Text Item Templates to insert data from Grid to Database.I have to make some formula on runtime with out postback the page Can i do this My code is bellow.

For Each gvRow2 As GridViewRow In GridView1.Rows
Dim txtNetWt As TextBox = CType(gvRow2.FindControl("txtNetWt"), TextBox)
Dim txtGrossWt As TextBox = CType(gvRow2.FindControl("txtGrossWt"), TextBox)

[Code]....