VB Number And Decimal Number Validation Expression?
Sep 19, 2009To 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?
View 1 RepliesTo 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?
View 1 Repliesformat number to hower many number on left of decimal and 1 decimal without rounding
View 2 Repliesvalidation in vb.netemail_id validation,name,mobile number,Telephone number,zip_code,address i want to all code the textbox
View 3 RepliesI 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.
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].....
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
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
View 1 RepliesI 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
View 1 RepliesMy 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.
View 4 RepliesIs there anybody which can assist me with a code in VB.NET visual studio 2010 for validating Greek TAX Registration number (VAT).
View 3 RepliesActually 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
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.
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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.
How to make validation Only Allow letters and Numbers to Input, without any special character in Textbox
View 4 RepliesIs it possible to put Number validation in required field validator in asp.net text box?
View 7 RepliesHow 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
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.
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].....
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..
View 2 Repliesi 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
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)
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]...
I have a problem regarding the number and want the number become from this: RM 2 to be like this: RM 2.00 [code]...
View 3 RepliesHow 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.
View 2 RepliesI 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?
View 4 Repliescorrect 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.
View 8 RepliesI 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?
View 4 RepliesI'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
View 1 Replieshow do you detect how many decimals a decimal number has
View 10 RepliesI 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.
View 11 Replies