# Asp.net - Big Negative Number - Positive Giving Positive Only?

Apr 15, 2011

I have temp2 value -52340.0 and hslColor.Luminosity is 240.0 When Dim temp1 As Double = (hslColor.Luminosity - temp2). It shoud give -ve number but I am getting always positive number. results should nbe -52100, but I am getting +52100. How to handle this?

## Convert Positive/negative Number?

Dec 19, 2005

Is there a built-in function in .NET (VB) to convert a negative number into a positive, and vice-versa?I usually end up just using:NegNum = PosNu - (PosNum * 2)PosNum = NegNum- (NegNum * 2)

## Convert Negative Integers To Positive Ones?

Jun 22, 2011

I need to convert a negative integer to a positive one.

## Test An Integer Value To See When It Is Positive / Negative?

Sep 18, 2009

I am looking for a way to test an integer value to see if it is positive or negative so I can perform the required actions.

## Possible In An Datagridview To Use Different Formatting For Negative, Positive And Zerovalues?

Jan 19, 2009

Is it possible in an datagridview to use different formatting for negative, positive and zerovalues?I want to show positive numbers in black, negative numbers in red, and zero-values hidden.

## Textbox Maxlength For Positive / Negative Integers

Apr 25, 2012

The problem is simple: I have a form with textboxes, and in one of those textboxes, I want users to enter either a positive or negative 2-digit number. I'm looking for an easy way to enforce this restriction, i.e. without having to parse the number and check whether its absolute value is below 100.

[Code]...

## C# - Format Double As String With Positive / Negative Symbol?

Aug 25, 2011

I'm outputting a Double that can be either (+) or negative (-). If the number is a negative the symbol (-) is included automatically, is there a way to do this for positive numbers as well?

The only (horrible) way I can do this is :

If MyNumber <= 0 then
string.Format("{0:0.00}", MyNumber)
Else
string.Format("+{0:0.00}", MyNumber)
End If

## Random Numbers To Display Both Negative And Positive Integers

Feb 28, 2012

I have written a program that generates and prints 10 random integers from -10 to 10, my problem is that I am returning both negative and positive numbers, aligned right with a pad of 2, but the negative is on the right hand side of my number instead of the left. here is my code, all work but I need to align the numbers and have the correct notation of negative.

[Code]...

## Alter The .visible Property Of A Label Based On If A Variable Is Positive Or Negative?

Apr 11, 2010

I want to alter the .visible property of a label based on if a variable is positive or negative (Hiding it for negative values)
But I want to do this for lots of labels so If Statements are too bulky.

I tried this:

Label1.visible = CBool(IntVariable1)

But it turns out CBool returns True for ANY value and False for Zero.I'd assumed it would be True for positive values and False for negatives.How can I do it without if statements?I considered Modulo or SquareRoots to somehow convert a negative number into zero, but didn't want to complicate things with imaginary numbers.

## Convert Positive And Negative Math.Sin (waveform Output Values) Into (unsigned) Byte Array?

Apr 19, 2011

I'm creating an emulator for a device to simulate wave forms. My challenge is that when I try to convert the output of the following code, I can't convert the Math.Sin's double output into byte values that lend themselves to the byte array format required by an existing graphing control as listed at bottom below. I''m not sure how to handle this when the sin function creates negative values but the byte values will need to be positive and basically 'shifted up' so that anything over 127 is negative. (0 - 255) unsigned. BitConverter.GetBytes has been suggested but THIS is the result of that attempt.

[Code]....

## Let Textbox1 Only Enter Positive Whole Numbers And Positive Decimal Numbers?

Jan 10, 2012

How to let textbox1 only enter positive whole numbers and positive decimal numbers

## Application That Will Display Positive Integers / Negative Integers And Zero Entered In A InputBox

Mar 20, 2010

I tried coding for an application that will display the positive integers, negative integers and zero entered in a inputBox. for some reason it keeps crashing down.here is my code. paging all visual basic professionals. [code]

## Return Positive Voltage Or Negative Voltage?

Sep 14, 2009

I have this light sensor circuit that will return positive voltage or negative voltage. I want to plug it into the 9-pin D-Sub port on my computer. I already have a male connector. How do I connect the circuit to the D-Sub connector, and how do I read the value and convert it to a Boolean in a program? How do I set up the cables? It only returns one 1 or 0 value. Is it possible, even?

## String.Format("{0:C2}", -1234) (Currency Format) Treats Negative Numbers As Positive?

Jun 16, 2009

I am using String.Format("{0:C2}", -1234)to format numbers.is always formats the amount to a positive number, while I want it to become \$*-*1234

## Get A Numberupdown Text To Show The Value "+" So If The Value Is A Positive Number Then It Adds The Plus Sign In Front Of The Digits?

Sep 29, 2009

is there any way to get a numberupdown text to show the value "+" so if the value is a positive number then it adds the plus sign in front of the digits.

example:

2.00 would become +2.00
3.25 would be +3.25

as when its negative its

-2.00
-3.25

## Disable In Textbox Has Anything Else Besides Whole Positive Integers?

Jun 12, 2009

For the life of me, I cant seem to do this. In the textbox_textchanged method, I want Button to disable in textbox has anything else besides whole positive integers.If text box has positive integers, i want button1 to enable.

## Output Divisors Of A Positive Integer?

Aug 30, 2009

how I could go about doing it. The console application needs to input a positive integer and output its proper divisors.

[Code]...

## Positive Decimal In Datagridview Columns?

Jun 1, 2011

How to set in datagridview column to force it only accept positive decimal value??

If negative , then raise dataerror event??

## Round To Half, Always In Positive Direction?

Aug 25, 2011

How do I achieve the below rounding?

0.012608376 > 0.015
2.1 > 2.5
2.4 > 2.5

[code].....

## Show Positive Symbol For Integer?

Feb 15, 2009

How do I have a positive number show the "+" sign before the number.

I feel that this should be easy but my searches must be too broad because I get way more info than I want and don't seem to find the easy fix.

## VB Program That Requests A Positive Integer As Input?

Nov 28, 2009

i did this much but something doesn't seem right...the question is A Visual Basic program that requests a positive integer as input, and carries out the following steps:If the number is even, divide it by 2.Otherwise, multiply the number by 3, and add 1 to the result. Repeat this process with the resulting number, and continue repeating until the number 1 is reached.After the number 1 is reached, displayed how many iterations were required to reach the number 1. (Hint: a number is even if number Mod 2 = 0.)

Private Sub btn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn.Click
Dim num, multiply, divide As Double

[Code]...

## Develop An Application Which Accepts A Positive Integer Value From The User?

Nov 8, 2011

develop an application which accepts a positive integer value from the user and outputs the sum of all integers between 0 and the given integer.

## Simple Script To Output Divisors Of A Positive Integer

Aug 30, 2009

The console application needs to input a positive integer and output its proper divisors.[code]

## Textbox Validation - Allow Positive Numbers And Decimal Point?

Sep 9, 2011

What would be the code to validate a textbox so that it can only accept positive numbers and a decimal point? If no value is entered, it automatically enters 0.

## Write A Program To Request Positive Numbers One At A Time From The User In An Input Dialog Box

May 12, 2009

I'm currently in VB class at my highschool and we just got chapter 6.1 to read on this online textbook that we follow. Anyway, we are doing loops now and the problem reads "Write a program to request positive numbers one at a time from the user in an input dialog box. The user should be instructed to enter -1 after all the positive numbers have been supplied. At that time, the program should display the sum of the numbers." So far I know this much

[Code]...

Now I know this isn't right But I can't find out how I'd pull out the numbers the user entered to get the sum of them and not include -1 because as it stands, when I hit ENTER with -1 the label just shows -1.

## VAL Function Returning Negative Decimal Number For 8 Digit Hex Number?

Jun 23, 2009

I am calling the function below from an Excel spreadsheet and the conversion from hex to decimal using the VAL function in the "manufacturer" variable below is coming back with a negative value.  The VBA edition is 6.5.

Public Function decMEID(ByVal sKey As String) As String
Dim manufacturer As String
Dim serial As String

[code].....

## Negative Number Change?

Feb 2, 2010

i have a negative number and i want to change it to its positive

eg -14 to 14

## Check A Value And Make Sure That It Is Not A Negative Number?

May 25, 2009

I need to check a value and make sure that it is not a negative number using a try catch statement I keep getting an error saying that I have to use a method.

Try
TotalCurrentBalance < 0
Catch ex As Exception
End Try

I wouldn't put a if statement would I? I am thinking that would defeat the purpose.

## Database - Negative Number In Datagridview?

May 10, 2011

I'm having problem in my datagridview.I'm using vb 2008 and an access database. When I create a new record for my item the No column (primary key and autonumber in access) always shows a negative number.How can I make that a positive number and it should follow the numbering in the datagridview.

## Font To Change Red When Number Is Negative?

Nov 10, 2007

I have written a code that when the click the calculation the button a inputbox pop up and you enter in the income and then you enter in the expense. [code]...

## Why Does A Negative SByte Number Have 16 Bits

Jul 11, 2011

I asked a question earlier about comparing numbers using the "And" comparison operator in If Statements and now I have been toying around with getting my head wrapped around bitwise operators. So I have written a very basic code that will allow me to see the conversion of any decimal number in binary format.[code]Notice here that I am using SByte as the paramerter - which should only contain 8 bits right? However, the message box that appears has 16 bits assigned to negative numbers.

## Insert A Negative Number Into A Byte Parameter?

Dec 7, 2010

How can I insert a negative number into a byte parameter?

Something like this:

Dim b As Byte = -111

## VS 2008 - Windows 7 API - Number Isn't Even Negative Anymore

Jul 11, 2010

My problem is with the following API.

Private Declare Function GetKeyState Lib "user32" (ByVal keyCode As Integer) As Integer In Windows XP, I could simply use the API like this: If GetKeyState(Keys.Left) < 0 Then 'Move Left If the key was pressed, it was a certain number below 0, the number itself alternated each time you pressed the key but it was always below 0.

My problem is that in Windows 7, when you press the Left key, the number isn't the same, in fact the number isn't even negative anymore. This problem tricked me at first into thinking the API didn't even work as when I ran the .exe of course my code did nothing since GetKeyState never returned a number below 0. I tested the value itself though and found that it never goes negative, the number for the key just decreases a little.

The weird thing is, while the .exe from the Debug folder proved my point that the GetKeyState number was different and thus the program didn't work, running the .exe from the Release folder actually worked, the controls were fine and the API returned numbers less than 0 for GetKeyState. But the .exe from the release folder was built with my old XP computer, as soon as I made a new build with my windows 7 computer the API stopped working again.

Why did Windows 7 change the number returned for when the key is down, is there a way to change it back without having to include some large package with my program? Why did the build from my XP computer work at first? Also it was only the one from the release folder, not the debug one, even though they were both from the XP computer.

I tested some more on windows 7 and found that every time I run the program, the number returned by GetKeyState is completely different. When the key is down the number is 1,000,000 units higher than up, but other than that the number is random each program start.

## Mysql DB In Windows Form Id Field Has Negative Number

Jun 18, 2012

I got a Mysql sql database for my project. The id field is set as auto increment, which seems to function correctly. But on the form in my text field and datagrid i see a negative number, while in the database its a postitive number. I do not really plan to use the id field right now, but when i do it might cause some problems.

Anybody know why it would show as a negative number on the form(textbox/gridview) and as a positive in the actual database?

## Round A Number But It Is Not Giving Correct Answer?

Jan 14, 2011

In vb.net i am going to round a number but it is not Giving me correct answer. i.e.

Round (1.5,0) = 2
Round (2.5,0) = 2   which is wrong. the answer should be 3.

(When i use the Round formula in Excel it gives me the correct answer)

## DB/Reporting :: Combo Box Selected Value Giving Wrong Number?

May 29, 2008

I have a combobox. The data that it binds to should be:

AcctID AcctName
10 Main
11 Old

[code].....

## Negative Zero In VB?

Oct 22, 2010

In C# we can declare a decimal number as negative zero i.e usingDecimal x = -0.0M we can define a variable x which holds value i.e negative zero. +ve zero can be differentiated from -ve zero using Decimal.GetBits method and looking at its MSB

## Forms :: Use A If Statement To See If Fosters Button And Number 1 On The Number Pad Are Both Pressed Then Multiply Constant By Quantity Number?

Mar 4, 2011

I am doing a bar cash register and I want to use a if statement to see if fosters button and number 1 on the number pad are both pressed then multiply constant by quantity number

## SQL SUM Negative Value Not Being Returned

Jul 21, 2011

I have an SQL Query that looks like this [code]I get two results. The first is the correct one which is -0.0060 and the second @return_value which is 0.This is also the case when I call the stored procedure from my code, I get a 0 back instead of the -0.0060 that I want. This is how I am calling the stored procedure from my code:[code]

## .net - Formatting A Negative TimeSpan?

Jul 11, 2010

I'm doing some math with the Timespans in .Net, and occasionally the sum results in a negative Timespan. When I display the result I am having trouble formatting it to include the negative indicator.

Dim ts as New Timespan(-10,0,0)
ts.ToString()

This will display "-10:00:00", which is good but I don't want to show the seconds so tried this.

ts.ToString("hh:mm")

This returns "10:00" and has dropped the "-" from the front which is the crux of the issue. My current solution is this:

If(ts < TimeSpan.Zero, "-", "") & ts.ToString("hh:mm")

but I was hoping to accomplish the same by using only the format string.