VS 2008 Only Using The First Characters Entered In Textbox
Jul 8, 2010I'm working on a query where I only want to use the 8 first characters entered in to the textbox. Is there some attribute to textbox that allows me to do this?
View 4 RepliesI'm working on a query where I only want to use the 8 first characters entered in to the textbox. Is there some attribute to textbox that allows me to do this?
View 4 RepliesI am building a form and i want to prevent certain characters from being typed in a textbox? I want to disable the " and ' characters in some of my textboxes
View 4 RepliesHow to count no. of characters entered in multiline textbox, i wanna enter maximum 140 characters in my multiline textbox using vb.net ...
In short i want textbox to enter limit is only 140 characters .[code]...
VS 2008 Preventing characters being entered
View 1 Replieshow do you restrict letters from being entered into a textbox?I know it invloves textbox_TextChanged but i don't know who to do so.
Edit: I figured out that Letters(25) = (a b c etc...) can be used but how to not enter the letter? Uhm.. Like, the user enters "a" and the program recognizes it using an IF statement. How will it NOT enter the letter into the textbox?
I am working in VB 2008 and I have a textbox on a form that is used to enter a parcel number. I can enter the number in a 15 character string such as 12345678...... and it works just fine. The parcel number in real life contains dashes to make it easier to read, decipher, etc. so it looks like 12-3-45-67....... Under the textchanged subroutine for the textbox I have a case statement set up that checks the length of the parcel number as it is entered and inserts the dash accordingly.
[Code]...
I have a text box where users will enter 4 digits that are ONLY numbers 0-9. I have blocked all letters and less than 4 or greater than 4 digits. But, for example if I enter 10.0, it will throw an exception, due to incorrect math used later in the prog. So how can I block the use of a (.) or any special character for that matter! I am using specific msgboxes to let the user know what isn't allowed, and would like to do the same for special characters.
What I have so far:
If Val(txtEntered.Text) < 0 Or
(IsNumeric(txtEntered.Text) = False) Then
MsgBox("Sorry, but letters are not allowed!")
[Code].....
Essentially I am trying to replicate the Windows 7 (In-Windows) activation key TextBox form. The Form where it will auto capitalize letters, remove or deny all non alphanumeric characters except dashes every 5 characters that will be auto-input.I assume this can be done with a fairly complicated replacement Regular Expression but I cannot seem to create one to fit the needs.
This is an Example of what I have right now, but it creates an infinite loop as it removes all characters including dashes, than adds a dash, which changes the text and removes the dash again.
[Code]...
What is the maximum amount of characters that can be put into a textbox in vb.net 2008?
View 2 RepliesHow do i limit the amount of characters in a masked textbox? I can do it in a normal textbox but not in a masked textbox because there is no option to limit the size.
View 6 Repliesi want to seperate textbox characters every 4 characters. like this:
regular text =
1234567812345678
filtered text:
[code]....
I'm trying to make a program that splits the data from one textbox into three.
[Code]...
The user inputs data into textbox 1. he enters "X:Y:Z". He then hits the sole button and it organizes it so that textbox 2 now contains "X", textbox 3 now contains "Y", and textbox f now contains "Z". I'm completely lost on how to parse the data.
My program paste lots of stuff to a text box. Is it possible to replace every character that is not a number or a point to nothing? It may get lots of weird character there so is here way to replace them to �� and keeping numbers?
I know how to TextBox1.Text = TextBox1.Text.Replace("%", "") But its too many simbols to list, Can it be done easier?
I have two textboxes. I type in one of them and the text gets copied in real time into another textbox. There is one catch. I need to replace specific character with something else.
If I enter a quote " in textbox1, it has to be replaced with " in textbox2.
I started with something like the below code, but obviously this does not work (tried different stuff - this is for demonstration only). In the example below 'a' represents " , and 'b' represents "
Private Sub TextBox1_KeyUp(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.KeyUp
TextBox2.Text = TextBox1.Text
[Code]....
I want to put a persons National Insurance Number into a label but I want to put *** in place of the first 5 characters and then display the last 3 characters as normally.
View 1 RepliesI validate TextBox for numeric and length no more then 7 characters. I'm checking for Not IsNumber and Len. But I want to give a user to save record when TextBox is blank.
View 12 RepliesHow to create a new textbox every time previous textbox.text is entered?
View 7 RepliesI 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]...
OK, every time the letter a is entered into a textbox, I want it to enter in as a 1 instead. Help?
View 3 RepliesI wanna type 140 characters in asp.net textbox with multiline when i type in textbox then the characters will be decreaded means if i type two characters in textbox then in label the available characters will be shown is 138..using vb.net
View 1 RepliesIs it possible to validate the value entered within a textbox by comparing it with a text file that is full off accepted values?
in my textbox will be a location like London, i want to be able to validate that it is correct by looking in my text file to see if it is there?
my textfile would be written like this:
|london|manchester|birmingham|leeds|bristol| ... etc so it need to split the values by looknig with the pipe characters ( | )?
How to only check that checkbox which is entered in textbox ? If i have 4 checkboxes eith text checkbox1, checkbox2, checkbox3 and checkbox4 and 1 textbox if i type in textbox 1,2 then only checkbox1 and checkbox2 would be checked again directly after doing that i type 3,4 in textbox then only 3,4 will be checked and 1,2 will be uncheked.. remember i wanna do this coding for unlimited no. of checkboxes .. so dnt provide coding for 4 checkboxes only.
View 2 RepliesI want to check if the value in the text box is EVEN NUMBER.else throw an error mssg.
View 3 RepliesI have a text box and I would like to type in a website address and make it go to the given website by clicking a button..I already created a button and a text box. How to go to the entered website address.
View 3 RepliesI have a textbox where the user enters their name, however it is possible to enter numbers in textbox, i was wondering if there is a pre existing function that only allows alphabetical characters to be entered?
View 17 RepliesI have a appointments program and the user must be over 18. I was wondering is there a way to restrict the numbers entered into a textbox to be from 18 to 100. can this be done with e.keychar
View 4 RepliesI'm traying to write some query but I don't know much about DataBase. I have a variable that store the value entered on a textbox and I want to look value in the DataBase and then show the record on the DataGrid. I'm traying to build some query but I think I'm way off.
Here is my query:
SELECT Name, Record, Plan, [Numero de contrato]
FROM [Record de Pacientes]
WHERE (Name LIKE '%Variable%')
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?
View 4 RepliesI am making this for a homework assignment and i need to calculate the average for values entered in textbox1 and place them in other textboxes. I dont understand how to do this with numbers all placed in the same spot. here is my code thus far:
Private Sub Label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click
End Sub
[Code].....
I need to do a check on telephone numbers entered into a textbox.I know the regular expression for an email address but not to check a telephone number like such (000)000-0000
View 1 Replies