Limit A TextBox To Have Only 4 Digits?
May 22, 2009I have this textbox and i want to limit the number of digets able to be entered to 4.
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Forms :: Limit This Textbox To Enter 10 Digits Only?
Feb 3, 2011I have a textbox and I would like to limit this textbox to enter 10 digits only. Is there a way to do it?
View 3 RepliesTextBox Validation - 16 Numeric Digits Entered Into The Masked Textbox
Nov 18, 2009I am trying to mkae sure that there has been 16 numeric digits entered into the masked textbox. If not show errror message and if so to call the fucnction ValidateLuhn. When calling Validate Luhn i want the program to tell me if the number entered is valid or invalid using the code in the function:
Private Function ValidateLuhn(ByVal value As String) As Boolean
Dim CheckSum As Integer = 0
Dim DoubleFlag As Boolean = (value.Length Mod 2 = 0)
[CODE]...
Enter Only Four Digits In The Textbox?
Dec 3, 2011The client can enter only four digits in the textbox wich represent the PIN (the text box is not allowed to enter more or less than four digits) . After the client entered four digits the textbox will be read only
My problem :When I put one digite then the text box becomes read-only, i want to enterd only 4 digite ..
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
If e.KeyChar Like "[0_9]" Or Asc(e.KeyChar) Like 8 Then
[Code].....
Only Accept Digits For Textbox?
Jan 26, 2011I found this code for making my textbox only accept numbers.
Private Sub TextBox1_KeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Dim allowedChars As String = "0123456789"
[Code]....
But... the user can't delete the numbers using the backspace button. How do I do then?
Only Accept Digits In Textbox
Apr 6, 2011Given a texbox, how can I completely ignore non-digit characters? So if I press "A" or "Z", those characters would never appear in the textbox. I'd like to run a bit of code if the user tries to input digits and if he tries to input non-digits too..
View 3 RepliesOnly Accept Digits In Textbox?
Feb 23, 2009Given a texbox, how can I completely ignore non-digit characters? So if I press "A" or "Z", those characters would never appear in the textbox. I'd like to run a bit of code if the user tries to input digits and if he tries to input non-digits too
View 1 RepliesTextbox Accept Only Digits?
Mar 27, 2010Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Dim allowedChars As String = "0123456789$,"
If allowedChars.IndexOf(e.KeyChar) = -1 Then
' Invalid Character
e.Handled = True
[code]....
this code accept only digits and its working like a charm but if i typed a wrong number its not allowing me to use the delete or the backspace on the keyboard?
Count Digits Are Same In Multiline Textbox?
Sep 26, 2010how to modified in cazypennie coding..
[Code]....
Format Integer To 5 Digits For Textbox?
Nov 9, 2011i'm looking for a VB code to format integer into 5 digits and then after that auto increments like (00001 , 00002, 00003) And they are used in a text box field.
Scenario Example : When the user clicks on Add New Record. The empty id text box field will automatically insert a number 00001 on the textbox and if there user wants to add another record the number goes 00002 and so on.
Get Code To Check That Textbox Has 16 Digits In It
Nov 16, 2009Im trying to get my code to check that my textbox has 16 digits in it so that it can then validate the number entered. Here is the doe i have so far: [code]
View 3 RepliesFind Total Of Digits From Textbox To Listbox?
Sep 13, 2010This code bellow to find total of digits from textboxs to listbox.This code don't care about how many textboxs on the form.I take this code from Cazypennie..Great code.My question is..I want to change that code from many textboxs to only one textbox MultiLine having 30 Lines of digits to count and appear to listbox.
Option Strict Off
Public Class Form1
Dim BoxValueCollection As New Collection[code].......
Round Milliseconds Digits In Datetime.now From 7 Digits To 3?
Apr 30, 2009Dim Timing1, Timing2 As DateTime
Timing1 = DateTime.Now
MyCode
[code].....
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 RepliesInserting 10 Digits Number From Textbox To Sql Server 2005?
May 23, 2012It try to insert 10 digits number to database sql server through textbox it give me this error.Here is the code which i use for validation the textbox
Private Sub contacttxt_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles contacttxt.KeyPress
If (e.KeyChar < Chr(48) Or e.KeyChar > Chr(57)) And e.KeyChar <> Chr(8) Then
[code]....
Winforms - Allow Only A Decimal Point After An Input Of Three Digits In A Textbox?
Nov 9, 2011How do I allow only a decimal point after an input of three digits in a textbox in VB.NET?
Let's say I inputed "123" after that I can only put a decimal else it wont allow any other input. So the result would be "123."
Dim KeyAscii As Integer
KeyAscii = Asc(myE.KeyChar)
Select Case KeyAscii
[Code]....
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 RepliesVS 2008 - How To Show Label With Digits In Textbox On Button Click
Oct 3, 2010I need to click a button but after doing so a label will show the first digit in a text box and
another label will show the second digit. I know the button control but I don't get how to get the label to say what the first and second digit is.
Textbox Has A Limit?
Jan 25, 2010does textbox has a limit because I added a (very long) code and I couldn't paste further..What can I do make it bigger? I mean bigger of capacity.
View 4 RepliesRegex 4 Digits A Hyphen And 4 Digits?
Jul 2, 2010I'm trying to match a string to see if it matches exactly this:####-####, it has to be 4 digits followed by a hyphen followed by 4 more digits. Right now I have this pattern: "d{4}-d{4}" but it's allowing 5 digits in either (or both) instead of strictly 4 per group. Here's an example of what it should allow:
1999-2000
2003-2007
2009-2010
and here's what my pattern is allowing but should not be allowing:
20081-2009
2009-20101
12345-12345
12345-1234-1234
VS 2008 - 10 Digits To Compare With Other 10 Digits
Jan 17, 2010I have 10 labels with 10 numbers and i want theses numbers to compare with other 10 labels with different numbers and when they found that second pair of labels are not equal with the first to show me in a new label where is the fault and in another new label the sum of the mistakes
View 3 RepliesHow To Set A Limit Of Characters In Textbox
Jun 8, 2011I wanted to set a maximum limit of characters of textbox in the properties but i can't find where it is located unlike in vb 6.0 you can set the characters in maxlength...
View 6 RepliesLimit A Textbox To Only 20 Characters?
Sep 4, 2009i would like to limit a textbox input to 20 characters and only one line to input the characters.. i really have no idea where to start. i did see some forum threads, except they're for different options other than the option i need.. trujade.so much work to do and so many choices to choose from...
View 5 RepliesLimit Textbox Decimal Input In C#?
Jun 26, 2010How can I make a textbox in which can be only typed a number like 12.00 or 1231231.00 or 123123
I've done this in a very long way and I'm looking for the best and fastest way.
Also the decimal separator must be culture specific.:
Application.CurrentCulture.NumberFormat.NumberDecimalSeparator
Limit Textbox To A Range Of Characters
Mar 21, 2011I want to limit the Textbox to a range of characters in VB. For example, I want the user to enter strings from 5-7 characters. I know how to limit the Textbox to a certain number of characters by MaxLength but that will give him the option of writing just 3 or 4 characters which I don't want to allow that from happening.
View 4 RepliesVS 2010 Limit Values In A Textbox?
May 13, 2012So far I have code for a textbox that limits the value entered by a user to two value places. However, I would like to limit the value entered by a user to numerical values only. And to handle any exceptions that go along with it.
View 2 RepliesHow To Limit Multiline Textbox Perline Length
Jun 6, 2010I want to limit length in textbox. not total maxlength but maxlength perline. for example. if I choose to limit 7 char per line. when words exceeded 7 in a line textbox will start a newline.(without break the word) can anyone tell how to make it? I did actually search for a long time.[code]although in text "For best results" s is the 8th char in first line.but it;s a word I dont want to break it
View 6 RepliesHow To Limit Multiline Textbox Perline Length In .net
Jun 7, 2010Although set textbox width can fit my request.but when writes textbox.text to a file it's actually in one line. for example"Scientists say our ability to focus is being undermined by bursts of information from e-mail and other interruptions. "
is actually one line text.but it shows 2 lines in my textbox. I want when it write to a .txt file it keep what is looks like in textbox. But it's actually one line in textbox. hope I make my question clear.
is there any method to do what I say? what I think is add a Environment.NewLine at each row end. or limit length in textbox. not total maxlength but maxlength perline. for example. if I choose to limit N char per line. when words exceeded N in a line textbox will start a newline.(without break the word) can anyone tell how to make it? I did actually search for a long time.. but I didn't find any useful information for my request.
Limit Textbox To Input ONLY Three Numbers And Letters?
Sep 29, 2009How can we limit the textbox to input ONLY three numbers and three letters?
View 2 RepliesVS 2010 How To Limit The User To Input . In Textbox
Jan 23, 2012How can i limit the user to input only one period in textbox cause in my textbox the user can input may periods on it??
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