Limiting A Textbox To Enter 10 Digit Number Only?
Oct 15, 2011how can i limit a user to enter 10 digit no like telephone no in textbox without using regular expressions?
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Limiting Textbox To Enter 10digit Number Only?
Oct 9, 2011how can i limit a user to enter just 10 digit number (minimum 8 but not more than that 10 in any case) in a textbox(like telephone no)?
View 4 RepliesLimiting The Number Of Characters Can Enter Into A Windows Forms Textbox?
Jan 28, 2012Assuming that I have a Windows Forms textbox and want to reduce the maximum amount of characters that can be allowed in via user entry, how would I do that?
View 2 RepliesEnter A Two-digit Number It Doesn't Wait?
Jan 27, 2012I want to be able to enter (type in) data into a combobox as well as picking from the list. In earlier VB there was AfterUpdate event so that I could enter in the data I wanted. Now I have tried Keypress, Enter, and others and they all want just one character or number. If I try to enter a two-digit number it doesn't wait.
View 16 Replies5-digit Credit Card Number With Fifth Digit As Check Digit
Apr 6, 2010I just finished this application where you enter a five-digit credit card number, with the fifth digit being the check digit. everything seems to work except, I can't seem to get it to determine that any number is "valid". Every 5-digit combination that I enter returns "The credit card number is not valid". Im using visual basic 2008 express
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Make A Digit Number In A Field Of A Database Add One Digit Number To It Self?
Aug 12, 2011i want a button to perform a function of checking the last digit number in a field of a table in and add a digit to it and display it in a textbox.
View 1 RepliesWrite A Program That Validates An Inputted Ten Digit ISBN Number Using The Check-digit?
Sep 16, 2011I'm supposed to write a program that validates an inputted ten digit ISBN number using the check-digit at the end to ensure that the sum is a multiple of eleven. Before calculating this and detecting if the entered number is indeed a valid ISBN, we're required to check the first nine digits and see if they are indeed integers. After this the tenth digit is checked to see if it is "X" (for ten) or 0-9.
With the code I've written it keeps returning false for whether or not the ISBN is valid, even with valid numbers. I feel like its something to do with the hyphens; have I misused the replace function?I'm a little lost on how to make my code work, but I'm fairly certain my logic is okay so far.
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Split A 2-digit Number From A Textbox And Store The Digits In Labels?
Nov 21, 2011How do I split a 2-digit number from a textbox and put the first digit in one label and the second digit in another label when a button is clicked?
View 2 RepliesEnter A Certain Number Of Chars Into A Textbox?
Nov 30, 2010It seems like I'm only able to enter a certain number of chars into a textbox.Like if I have a list from 1 to 10000.When I paste it in a textbox it ends like this:
5639
5640
5641
[code]....
Why cant I add everything to the textbox?
How To Enter Number In Textbox Class
Mar 31, 2011With this code, I am trying to enter a number in TxtBox Class A, B, and C. When I place a number in either text box, it will multiply the following text boxes by either 15, 21, and 9, add the total and place it in the the total text box. When I run the code I get this error message "Conversion from string "" to type 'Decimal' is not valid."
Dim decClassA As Decimal
Dim decClassB As Decimal
Dim decClassC As Decimal
Dim decClassAR As Decimal
Dim decClassBR As Decimal
[Code] .....
How To Let Customer Enter Their Passport Number Into A Textbox
Nov 22, 2010I am doing a program for travel reservation and need to know how to let the customer enter their passport number into a textbox. Its is 8 characters long and the first 7 characters are numbers and the 8th is a letter.
View 1 RepliesSQL : Get Minimum Value From List Of 3, 4, 5 Digit Numbers But Want Minimum 4 Digit Number?
May 4, 2012I'm using Visual Studio and table adapters using an Access DB as the backend. I need the minimum 4 digit value. I want to get next available 4 or 5 digit number. And this will change depending upon the users request. Currently I use a table adabpter query. But how would I write a query. I suppose I could do a long iterative loop through all values until I see a 4 digit.But I'm trying to think of something more efficient.
Function GetNextAvailableNumber(NumofDigits) as Long
'SQL Code Here ----
'Query Number Table
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Assign Specific Number Of Digits Enter In A Textbox?
Jun 21, 2010i want to know how to assign specific number of digits enter in a textbox..
View 1 RepliesVB - Georgetown Credit Card - When The Last 5th Digit Match The Sum Number At The Last Number - Isnt Working
Dec 10, 2010I got most part correctly but the only part isnt working right is when the last 5th digit match the sum number at the last number.
Private Sub btnVerify_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnVerify.Click
Dim strCardNum As String
Dim strSumNum As String
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VAL Function Returning Negative Decimal Number For 8 Digit Hex Number?
Jun 23, 2009I 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
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Add A Message To A Mask TextBox Reminding Users To Enter Number?
Mar 21, 2011I have two masked text boxes that holds Phone Numbers and Zip Codes.Since they are Masked text boxes and are set not to allow characters or letters, the user must enter numbers.However, how do I add a message telling the user to enter number and zip code since there is no prompt?I don't need to validate the numbers just to add an error message if it's left empty.
View 9 RepliesVS 2008 Enter Only 7 Numbers And A Letter - Passport Number Into The Textbox
Oct 26, 2010I have a customer form and want the customer to enter a passport number into the textbox and want to limit them to enter only 7 numbers and a letter.
View 1 RepliesLimiting The Number Of Items In A List Box?
May 19, 2011Does anyone know how to add a limit to the number of items in a list box? For example, you can't add more than 10 items in ListBox1.
View 2 RepliesGenerate Serial Number (last Six Digit Number)
May 17, 2010I want to generate a serial number in this format: INDDMMYY000001, INDDMMYY000002, INDDMMYY000003, ... I can generate INDDMMYY using following code: lblNoSiri.Text = "IN" + Date.Now.ToString("ddMMyy") However, I don't know how to generate the last six digit number. I only can generate number without zero in front of it. How to create the number with fix number of digit?
View 4 RepliesVS 2008 - Limiting Number CheckBoxes You May Select?
Jun 2, 2012I am creating an application in Visual Basic '08 with four available checkboxes. Is it possible to limit the number of checkboxes you may select down to 2, and how may I go about doing this?
View 12 RepliesPattern For Limiting Number Of Simultaneous Asynchronous Calls?
Apr 9, 2010I need to retrieve multiple objects from an external system. The external system supports multiple simultaneous requests (i.e. threads), but it is possible to flood the external system - therefore I want to be able to retrieve multiple objects asynchronously, but I want to be able to throttle the number of simultaneous async requests. i.e. I need to retrieve 100 items, but don't want to be retrieving more than 25 of them at once. When each request of the 25 completes, I want to trigger another retrieval, and once they are all complete I want to return all of the results in the order they were requested (i.e. there is no point returning the results until the entire call is returned). Are there any recommended patterns for this sort of thing?
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C# - LinqToSql - Prevent Sub Queries When Limiting Number Of Rows Returned?
Sep 16, 2009Dim query = (From p in Parent _
select _
p.ID, _
Tags = String.Join("|", p.Child.Select(Function(c) c.Tag.TagName).ToArray)).Take(100)
In the above query, when using Take to limit the rows returned, a separate SQL query is executed for each row to return the 'Tags' field. If I remove Take(100), a single query to sent to Sql Server.So, how do I limit the number of rows returned, while preventing a new sub query being executed for each row?
Limiting Textbox To Numbers Only?
Feb 20, 2012I've made a lot of progress on my project. Only question I have now is how do I limit a textbox to only allow users to input numbers and one decimal point? The point of the decimal point is to make it currency. So if the answer of my calculation is 56.56566 I only want it to be $56.57.
View 5 RepliesHow To Encrypt 4 Digit Number
Feb 6, 2012How I could retrieve the single digits of a 4 digit number to manipulate them in my own way to encrypt the 4 digit number to my liking. Here's what I have to do; take a 4 digit number, add 7 to each digittaking the result and dividing by 10 leaving only the remainder. Then swap the first digit with the third, and swap the second with the fourth digit.
View 9 RepliesHow To Get Next 4 Digit Number From Table
May 4, 2012I found a good method of getting the next 4 digit number. How to find next free unique 4-digit number..But in my case I want to get next available 4 or 5 digit number.And this will change depending upon the users request. Theses number are not a key ID columns, but they are essential to the tagging structure for the business purpose. Currently I use a table adabpter query. But how would I write a query. I suppose I could do a long iterative loop through all values until I see a 4 digit.[code]Numbers is the List of All available number from 0 to 99999, basically what's available to use. LineList is my final master table where I keep the long and all the relevant other business information.
View 2 RepliesSplit Three Digit Number?
Feb 17, 2011I'd like to know how to get VB to display the individual digits of a three digit number when I click a button. Sorry if this seems simple, or if it's in the wrong place.
View 8 RepliesVS 2010 : Limiting Values In A Textbox?
Apr 25, 2012I have a textbox called textbox1. I wanted to limit it to only two characters, so I added the code TextBox1.MaxLength() = 2, however this textbox is for user input and only want to allow numeral values 0-99. And if the user entered a non-numerical value an exception would occur so I need help on to handle that.
View 2 RepliesVS 2010 Limiting Values In A Textbox?
May 12, 2012I have a textbox called textbox1. I wanted to limit it to only two characters, so I added the code TextBox1.MaxLength() = 2, however this textbox is for user input and only want to allow numeral values 0-99. And if the user entered a non-numerical value an exception would occur
View 3 RepliesC# - Round Any N-digit Number To (n-1) Zero-digits
Jan 5, 2011I need to round like this:
12 -> 10
152 -> 200
1538 -> 2000
25000 -> 30000
etc.
Twisting my head, but can't see how to make this. Must work for any n number of digits. Anyone got an elegant method for it?
Convert A 3 Digit Number To Text?
Nov 1, 2009I have to do one project like : 1.Complete the code to convert a 3 digit number to Text (Number > 19) 2.Adding suitable conditional statements modify to code to support the whole range of 3 digit numbers.
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