VB Number And Decimal Number Validation Expression?

Sep 19, 2009

To allow a textbox to contain "15" or 15.5" as numbers nothing else...I figured that ^\d+$ works for numbers but can't get decimals to work also?

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Format Number To Hower Many Number On Left Of Decimal And 1 Decimal Without Rounding?

Jul 28, 2010

format number to hower many number on left of decimal and 1 decimal without rounding

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Phone Number Or Landline Number Validation In Textbox Code?

Feb 11, 2012

validation in vb.netemail_id validation,name,mobile number,Telephone number,zip_code,address i want to all code the textbox

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Convert Decimal Number To Binary Number With Fixed Bits?

Oct 29, 2010

I want to convert numbers from 0 to 15 like that

[Code]...

Problem is that when we convert 2 to binary number it gives only 10 in binary, but i want to convert 2 to 4 bit binary number 0010.

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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].....

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.net - String.Format Decimal With Sign Fixed Number Of Decimal Places, No Decimal Separator?

Jun 27, 2012

What is the cleanest, most readable way to String.Format a decimal with the following criteria

start with a sign symbol (+ or -)
a fixed number of fraction digits
no decimal separator
right aligned
pre-padded with "0"'s

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Convert A Hexadecimal Number To A Decimal Number

May 3, 2011

im having trouble understanding this question for a homework assignment. I need to write the PSEUDOCODE for the following scenario, but i got no idea about how to convert a hexadecimal number to a decimal number..You are required to input a two digit hexadecimal number eg. 3f (digits can be entered separately) and calculate the equivalent decimal number. (note the decimal number will be between 0 and 255) . output the decimal number

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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

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Control Number Validation In VB?

Jun 5, 2011

My company uses control numbers to keep track of all of our inventory for every product that is entered into our warehouse.(ex.G123456789, T987654321) 1st Alphabet followed by 9 digits of numbers.Most of the time, these control numbers are scanned into the system by using a barcode scanner but some times these control number are entered into the system manually by hand.People make mistakes and sometimes enter in different control number.i want to be able to code my vb so that when the control number does not meet the critarion then program displays an error message.So i want to check for the first character which needs to be an alphabet and characters 2-10 to be a number.

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.net - Greek VAT Validation Number Code?

Dec 7, 2010

Is there anybody which can assist me with a code in VB.NET visual studio 2010 for validating Greek TAX Registration number (VAT).

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Checking Validation Of Number Using Module?

Jan 3, 2010

Actually i m trying to check the number validation in textbox using module. I write a code using function in module but i m not getting that hoe should i pass the value back to form. i m using isnumeric function.

how to check only number check in textbox using module

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Telephone Number Input Validation

Nov 25, 2009

The system we have in place at work for call centre agents to input telephone numbers doesn't validate their input, so, in a lot of cases, we have junk data being entered (0000000000 as a phone number generally). I've been taked with fixing this, but I'm not sure how to stop the agents entering junk like this.

[Code]...

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Forms :: Textbox Validation - Input Number Between 1 To 12

Mar 9, 2009

I am new to visual basic. Below is my
Private Sub todayMonth_Validating(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles todayMonth.Validating
Dim tb As TextBox = DirectCast(sender, TextBox)
If Convert.ToInt32(tb.Text) >= 1 And Convert.ToInt32(tb.Text) <= 12 Then
tb.Tag = True
[Code] .....

Actually, I wanted to validate the todayMonth textbox just to input number between 1 to 12. The problem comes out when I do this procedure : Lets say I input an interger 11 and it passes the validation and proceed to another textbox. Then I click back to the todayMonth textbox, it shows this error :
"Conversion from string "" to type 'Integer' is not valid."
I don't know why my value in the textbox is "null" or empty . I still saw the value 11 on the textbox.

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IDE :: Make Validation In Txtbox Only Allow Letter And Number?

Jul 31, 2010

How to make validation Only Allow letters and Numbers to Input, without any special character in Textbox

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Number Validation In Required Field Validator?

Sep 8, 2009

Is it possible to put Number validation in required field validator in asp.net text box?

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Add The Decimal Portion Of A Number To Another One?

Sep 2, 2010

How can I only add the decimal part of a number to another one?

example: if a number is A = 10.25

Then X = 30

Y = X + 0.25 (Here it added 0.25 which the decimal only NOT 10.25)

Another example, If X = 16.35, A = 102.001

Y = 16.351

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Changing A Decimal Into A Whole Number?

Mar 31, 2011

I am attempting to take the decimal places of a given input, round it so there are only two decimal places, then change it to a whole number. So far I have been able to remove the integer part of the number, leaving only the decimal, but the other procedures are eluding me. Here's what I have so far: (VB 2008)

Private Function DecimalNumber(ByVal number As Double) As Double
Dim Input As Double
Dim SubtractNumber As Decimal

[Code]....

That code returns the decimal part of the input just fine, and I thought maybe multiplying it by 10 would work....but obviously you run into problems when there is more than one decimal place.

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Check If A .NET Decimal Value Is A Whole Number?

Aug 20, 2010

I have class representing a unit of measure with a Decimal as the numeric. Just to simplify things for this example, let's say I'm representing centimeters. I'd like to implement a ToString() method for this class. The thing is, if the numeric value is a whole number I'd like to just display the decimal as an integer. Otherwise, I'd like to keep it as a decimal. So, for example, 10.5D centimeters would display as "10.5cm", but 7.0D centimeters should display as "7cm". I'd like this to be fast and simple to read. I have a working solution, but it seems like there should be a better way.Here's a contrived example showing my first crack at it:

Public Property Units As String = "cm"
Public Property NumericValue As Decimal = 10.5D
Public Overrides Function ToString()

[code].....

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Convert A Whole Number Into Decimal?

Jan 14, 2012

How to convert a whole number into decimal..For example 70 to .70 because there are some price in my system that needed to be calculated by grams for example $5 per grams... I am saving the price in my database as an integer..

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Converting Decimal Number?

May 10, 2011

i am using that code i have one datagridview and datagridview cell 3 value is 7

Dim n As Integer
For a = 0 To DataGridView1.Rows.Count - 1
If DataGridView1.Rows(a).Cells(0).Value = True Then
n = DataGridView1.Rows(a).Cells(3).Value

[code]....

the above code answer is 4 but i want the answer like that 3.5

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Decimal Places In A Number?

Oct 30, 2011

How do I check how many decimal places does a number have in VB.net?

For example: Inside a cicle I have an if statement and on that statement I want to check if a number has 4 decimal places (8.9659)

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Get The Number Of The Decimal Place

Jun 15, 2011

How can I get the number of the decimal place, example 1.30 then it should give 2, for 5.0101 should give 4. I'm now doing that:

[Code]...

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Make Number Become Decimal?

Jun 9, 2011

I have a problem regarding the number and want the number become from this: RM 2 to be like this: RM 2.00 [code]...

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Textbox To Number With Decimal?

May 28, 2009

How to convert the textbox.text to a number with decimal points. Once the subroutine have been process, the numbers will be dispalyed on the textbox or label in a format with two decimal numbers.

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.net - Display Number With 2 Decimal Places

Aug 20, 2009

I have a field in datatable .If 1000 is the value in it, i want to display it as 1000.00.Then if user changes to 1000.50 it should display as it is.Is there anyway to do this?

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2 Decimal Places Even If The Result Is An Even Number?

Apr 2, 2009

correct syntax to format decimals. I want 2 decimal places even if the result is an even number i.e. I want 40 to show as 40.00 and 40.6666667 to show as 40.67.

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Convert A Percentage To A Decimal Number

Feb 3, 2010

I want to know how to convert a percentage rate such as 4.5% into a decimal number in your code editor in V 2008.For example, the user input is 4.5%. Is there any function available to convert is to 0.045?

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Decimal Number In Access To Datagridview?

May 15, 2011

I'm using access as my database and vb .net 2008.My problem is i change a field into 2 ecimal places and when i debug my program why my data in the datagridview not a 2 decimalExample : in access TotalCost = 200.00in vb form datagridview TotalCost = 200

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Detect How Many Decimals A Decimal Number Has?

Dec 21, 2010

how do you detect how many decimals a decimal number has

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Failure To Retrieve A Decimal Number?

Oct 15, 2009

I have two forms. the first form saves a decimal number and could also retrieve it. the second form just retrieves the number from the database. on the first form, i successfully retrieved the number with the decimals included. but on the second form, the number retrieved is displayed as a rounded up whole number. i tried to copy the codes of the first form but it still displays the rounded up number.

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