Allow Users To Press Numbers Just Letters?
Feb 5, 2012
im validating textboxes in my form so it will not allow users to press numbers just letters.the code i'm using is Private Sub Textbox_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) _ Handles txtFirstName.KeyPress, txtSurname.KeyPress, txtAddress2.KeyPress, txtCity.KeyPress
[Code]...
what i need help with is, ive created a lable called lblFn next to the FirstName Textbox and would like this to be updated with "Please enter Characters Not digits" if a user enters digits in the textbox, how do i amend the above code to get this working?Basically whatever textbox a user enters wrong data in it updates the corressponding label next to it!
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Mar 26, 2009
The app uses several forms to let the user enter information. In each form the info is entered into textboxes and dealt with elsewhere when the "Enter" button is clicked. A lot if the info entered is used in calculations and so must not contain alpha characters, only numbers. What is the best way of examining each entry and identifying any that are not numbers, so that I can ask the user for a correction with a MsgBox?Prevent Users Entering Letters Instead of Numbers?
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Nov 13, 2011
Im Building a auction application and i need to catch the exceptions i.e if two people press the bid button at the same time i need to capture that exception and figure out who was has the highest bidder out of the pair of them then show the relevant message, my question is how can i achieve the above?
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Oct 10, 2010
How can I allow only letters A-Z (both lowercase and capital) and numbers 0-9 to be entered into a TextBox control? Also spaces are not allowed either.Goldfish64
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May 23, 2009
How do i make it so that you can only type in numbers and letters in a textbox? I want to disable the use of ("*(&$.....etc.) those types of symbols.
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May 19, 2009
I'm looking for some function to put together every possible combination of letters and number to create a string that is 14 characters long. I have found ways to make every possible combination of letters and numbers seperately. However, I've never run across anything to come up with them together. Every string created must contain letters and numbers.I just have no idea where to start on this one.
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Aug 17, 2009
i want to know how to convert numbers to lettres.
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Jun 21, 2010
im a student still learning and im stuck. im writing a program that returns the ip address, splits it in to parts, and now i need it to return a string of letters for other parts to use. EX.
ip address 127.0.0.1 will look like ABG.XXX.XXX.XXA
( i would like to set 0=X so it is easier to pick out the actual
numbers)
I am able to split it and display each part and rewrite it to textboxes without the "." but i dont know where to begin to change the numbers to the letters i need.
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Dec 6, 2010
I'm on VS 2008 I have one form contains many textboxes,when I write in one textbox (UserName) the letters and numbers should distribute to the other texts where each textbox has only one letter or number from the original text to get them ready to be encrypted.
What code I can use in text change event that takes the whole text and throw it in the other textboxes so each textbox has only one value ?
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Dec 7, 2009
My listbox will accept any letter I add, but I can't get it to accept any numbers. I tried a case select for 1-100 and I couldn't get that to work either,
Private Sub btnCount_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCount.Click
'Determine word count and average letters / word in the sentence
[Code].....
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Apr 26, 2009
I want to set the mask for the textbox for only letters and numbers with no spaces like thisthe "*" represents letters and numbers)
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Aug 9, 2009
I want to make a extractor/installer for example the users will press Install and it will extract myprogram.exe at C:/windows/system32/ automatically when they press install.
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Nov 15, 2009
I have a textbox which controls the interval of a Timer control. How do I filter out letters? Is it possible to restrict entry to numbers only (like if you enter a letter or a space, nothing happens)? Is there a property of the textbox that can accomplish this?
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Nov 10, 2009
I am creating a simple mathematical game in VB.NET for kids!!the game checks for some simple calculations!!I am having the problem regarding the if else block in the codehere is my code
[code]...
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Jul 17, 2010
How can I generate a random string of 8 numbers and letters?
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Apr 6, 2012
What I am trying to do is create a form with a button and a list box. When clicked the button will generate a list of 3 or 5 characters that have alternate letters and numbers...eg.
q2h
a6j
z4p
d9k
[Code].....
To complicate things a little, each combination needs to be different, ie. randomised but still according to the 'letter,number, letter' formula. There are plenty of examples of randomising strings such as passwords but I cannot understand how to achieve the above.
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May 23, 2009
I want it so that when someone clicks a button it generates a code in the format of XXXXX-XXXXX-XXXXX-XXXXX-XXXXX I want them to be letters and numbers combinations
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Jan 30, 2012
I'm brand spanking new to coding (as well as this forum). And I'm learning Visual Basic 2010 in School. Right now I am working on the following problem: "Use a masked text box to as a user to enter a phone number in a format as follows: (604)323-5819. Make sure you add input mask to the area code and phone number. Both the phone number and the area code are required. Then extract the area code and display it in a text box when a button is clicked." Here is my code, I've got it where I can input the number, and when the button is clicked (things actually appear in the text box!) however instead of getting the area code, I get "als" or alternatively if I put (0,3) I'll get "fals" I don't understand what I'm doing wrong or even where "fals" is coming from. Can someone please explain to me what I'm doing wrong? I've literally been at this since 4pm today and only just (midnight) able to get it to this point and I'm incredibly frustrated as to where these letters are coming from. [code]
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Jan 17, 2012
I have to (for class) make a program that generates a safe passwords for people to use. My teacher wants us to make the passwords vary in length, include numbers, letters and upper case letters. I've been able to write code that prints out a random string but it includes unrecognized characters for most passwords. How would I write the code to create a random string that has parameters? (in this case upper case lower case letters and numbers).
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Sep 29, 2009
How can we limit the textbox to input ONLY three numbers and three letters?
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Sep 5, 2011
How should I use linq to sort my data when my data contain both numbers and letters? For example my current linq
Dim MyQuery = From c In XDoc.Descendants() _
Where c.Attribute(Y) IsNot Nothing And c.Attribute(Str) IsNot Nothing _
Order By Val(c.Attribute(Y).Value), Val(c.Attribute(X).Value) _
Select Str = c.Attribute(Str)
Returns something like the following
13
167
172
231
44
49
Which is not what I would like it to be...
The output should be like the one below:
13
44
49
167
172
231
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Mar 9, 2012
how to make the values in a text box accepts only letters in the text box for data that are for letters only and numbers for data requiring numbers only
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Sep 13, 2010
I'm rather new here (actually just made this account in hopes of getting this question answered. I'm currently attempting to try and get text from a textbox to change the letters to numbers. A weak encryption if you will.Example:jack and jill ran up the hill in numbers would be say j=30 a=20 c=99 d=200 ect
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Oct 21, 2010
I have a program which records the phone numbers I dial into one program into its own textbox. But whenever I use numlock to type the phone numbers in, it appears as "abc, etc" in the recording program.
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Feb 20, 2009
is there a code for generating random letters and numbers?? like between 0 to 9 and A to F??
I used this code :
[Code]...
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Jun 16, 2009
I made a small license generator app with a datetimepicker, a textbox and a button on the form. When I ran the app and clicked the button to generate a license I got - 16DDD-06DDDD-09DDDDD, and each subsequent button click would get me a license with a different generated character (16444-064444-0944444, etc...).
I thought this was unusual as it should be generating a random character not a repeating one, so I stepped through in debug and the characters generated were random (161g2-06T5ip-0957H9k). I thought perhaps that I needed to seed the value with Now().Milliseconds, no luck, that still resulted in repeating characters. So I tried sleeping the thread and that generated the random values I wanted.
[Code]...
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Nov 11, 2009
I'm wanting to make a program that translates binary code into numbers/letters and numbers/letters into binary code. I know the general system of binary code, but I dont know how to translate anything with VB.net. Is there a general command I need to use or can someone link me to a good tutorial about translating?
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Jul 14, 2011
I need a regular expression that will match this pattern (case doesn't matter):066B-E77B-CE41-4279
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Dec 24, 2009
I am using Visual Basics 2008 Express edition. I want my program that I am making to generate a random amount of numbers and letters in this form when I click Button1.
WM9RX-GG6J2-4WKD9-FDJWM-TYH76
Is this possible?
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Nov 17, 2010
This code raise the FTP server files
[Code]....
Now I want to know how to do the following:
1. Select a maximum size per file
2. Promotion system randomly choose a name (with numbers and letters - at least 5) Then the program will show me a link to a file after uploading (for example: [URL] in TextBox2.text)
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