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]....

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VS 2008 : Have A Class Where The Functions Of The Same Name Are Both Instance Functions And Shared Functions?

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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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]...

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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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Differences Between VB Functions And Convert.To* Functions?

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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[2005] MembershipUser Functions - See Exactly What The Functions Are Doing?

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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Create Functions In Functions

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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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.

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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...

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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.

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Sep 12, 2010

I have datagridview, wich have 5 columns

example:

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

[Code].....

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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].....

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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:

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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)
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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?

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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]...

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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

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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?

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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.

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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].....

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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%!

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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.

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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.

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VS 2010 Add Subs / Functions To Subs / Functions?

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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2005 Calculation And Add Password?

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.

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Mar 23, 2012

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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.

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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.

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Asp.net - GridView Calculation On Runtime

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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)
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[Code]....

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Calculation - Costs 10 Credits To Use ?

Feb 26, 2010

Im creating a slot machine that costs 10 credits to use but i cant get it so that i can -10 credits from the total.

Heres my entire code:

Public Class frmFruitMachine
Dim OneCredit As Integer = 1
Dim FiveCredit As Integer = 5

[CODE].........................................

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