Remove One Character From From One Textbox With Backspace?
May 20, 2012
Private Sub txtInput_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtInput.KeyPress
Dim len As Integer
[Code].....
i want to delete "b" from first textbox and i should delete "King" from second textbox the length of each word is same "Acer" "King" it is always 4 in length
but i am getting following error
"Index and count must refer to a location within the string. Parameter name: count"
i also tried by replacing "len-4" by another variable dim c as integer=len-4
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Nov 8, 2009
[code]The RichTextBox's text would act as if the user pressed backspace while typing in the TextBox.How is it possible to remove a character from the textbox when the backspace event happens?
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Feb 28, 2009
I want to have a msgbox when user press 'backspace' in the textbox.
I wrote this:
Private Sub TextBox2_KeyPress(ByVal KeyAscii As Integer)
If KeyAscii = 8 Then
MsgBox("backspace")
End If
End Sub
Why it doesn't work?
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Jan 13, 2009
if i have a textbox called textbox1 and there is some text in it, is there a way to remove the last character in the textbox?
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Oct 18, 2010
You need to test for the backspace character, and if it's there, fix up the input.Maybe something like this:
If Right$(TxtQP.Text, 1) = vbBs Then
TxtQP = Left$(TxtQP, len(TxtQP)-1)
End If
Or is the backspace not showing up in the string, but as the input character kicking off your procedure?
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Dec 12, 2010
[Code]...
For each character of this string I want a new character out of the string and then remove the character from the list of characters that still maybe used for other characters. It may not get the same character, you could basically just call this encryption, but it's not what I am making. I don't want to waste my time doing this one hour while VB can do this for me in <1 second.
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Aug 9, 2009
estoy haciendo una aplicacion en visual web developer 2008 express edition , quisiera saber como puedo bloquear el backspace solo en un textbox , es q en este textbox estoy manejando fechas , las cuales las agrego mediante el control calendar extender de ajax ... lo que quisiera es q el usuario solo puede seleccionar la fecha mediante este control y no la pueda borrar con el backspace (seria lo mas facil ) .......ya intente con la propiedad readonly del textbox pero al cargarse la pagina me borra la fecha introducida por el control calendar extender de ajax ........o de que forma podria validar q sea una fecha correcta formato dia / mes / año (de 4 dijitos) o mes / dia / año (de 4 dijitos)
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Jun 23, 2011
I have MIDNAME column in my table. I want to remove all the character starting from the second character going to the right and after removing it, a period "." will be added right after the letter which left. How do I it?
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Aug 10, 2009
I have built an addin for outlook that has a usercontrol shimmed into the interface. Everything works wonderfully EXCEPT for one textbox on one subpanel of the control. I have tried everything I can think of, but have not been able to resolve the issue:
The textbox *(A regular System.Windows.Forms.Textbox) functions as you would expect in any application with one exception. It will NOT accept the backspace key. So much so that the KeyDown, KeyPress, KeyUp events will not even fire when I press the backspace key. There does not seem to be any parameter suppressing it, and the control has focus. What is even stranger is that it works completely fine if you hold down the shift key while pressing the backspace key.
[code]...
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Mar 5, 2010
i am trying to make a program and i only want the user to be able to enter numbers and use the backspace this is my code so far.
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Dim allowedChars As String = "0123456789"
[Code]....
i have tryed adding "ascii char (08)" to the program but its not worked
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Nov 21, 2011
I have made a textbox, which restricts character use to numbers and periods only. Nice, but now I cant enter backspace to amend any data typed in my textbox.
Private Sub TextBox10_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox10.KeyPress
Dim allowedChars As String = "1234567890."
If allowedChars.IndexOf(e.KeyChar) = -1 Then
[code]....
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Jun 5, 2010
Here's my code snippet:
Private Sub txtLogin2_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtLogin2.KeyPress
'// Ceci empêche l'utilisateur d'écrire des caractères ASCII ou même des espaces..
e.Handled = Not Char.IsLetterOrDigit(e.KeyChar)
End Sub
It works fine and dandy except for one issue... the only way to delete text in the textbox using this is to highlight and hit DEL... But what if I wanted to simply back space... Any suggestions?
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Nov 25, 2011
I have 3 text boxes that update with each other. One the user inputs the text, two the text is used for translation and instantly deleted, and three displays the translated text. If I need to backspace the code updates the translation adding double of each letter I delete. I need a way to skip all of the application code every time the backspace key is held. My current code here (full dictionary cut to save space).
Public Class Form1
Public Sub RichTextBox3_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles RichTextBox1.KeyDown
If e.KeyCode = Keys.Back Then
[Code] .....
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Jan 27, 2011
I'm trying to create a BMI Calculator with VB 2010. I have 2 TextBoxes for weight and length. I want to make sure that the user can only enter numeric (0123456789) values and also backspace and delete.
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Jun 9, 2011
I want to control a textbox to only allow numbers, backspace and a certain length. Ive tried with the IsNumeric function but I cant seem to get it to work.
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Apr 26, 2010
I have managed to format a text box to be formatted to two decimal places, and to only accept numbers.Only problem is i need to allow the backspace so that if someone types something wrong, they can backspace and type the correct number
Private Sub txtCAmount_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtCAmount.KeyPress
'Allow only numberical input plus decimal.
Dim allowedChars As String = "0123456789."
[code]....
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Mar 10, 2009
I have a simple question regarding the KeyPress event. I'm trying to make it to where my TextBox on my form can only accept numbers 0-9, backspace and '.' /without quotes. I've successfully got it to accept numbers 0-9, accept backspace, I'm just wondering - what line do I add so that it can accept periods as well?
Here's my
Private Sub TextBox_KeyPress(ByVal sender As Object, ByVal e _
As System.Windows.Forms.KeyPressEventArgs) Handles _
TextBox.KeyPress
[CODE]...
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May 9, 2010
My form has a texbox where user enters an ID. IDmust be4 chracters in length andof the form: begins with either "E" or "e" and the next 3 chracters cannot be "all characters".
Example:
E102 - corect
e3ff - correct
[code].....
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Aug 14, 2010
I have a string like this sravani/, asdfff/, lsdsf/. I want to remove last character '/' in the above string...which function can I use?
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Jan 13, 2011
I am trying to remove a last character of a string. This last char. is a newline (system.environment.newline)
I have tried some things but I can not remove it.
Example:
myString.Remove(sFP.Length - 1)
Example 2:
myString= Replace(myString, Environment.NewLine, "", myString.Length - 1)
How I can do it?
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Sep 27, 2009
I was wondering if anyone could help me with the following problem:
I am working with a csv file (it contains two columns of numbers), which as a last character has a comma and I would like to remove that comma from the file.
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Aug 18, 2009
I have a text file and i want to remove all the last character in each line how could i do that?
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Mar 9, 2011
I am trying to remove everything AFTER a specified character in a string. The string is just the Environ("username") and the local machine's IP address separated by a colon. IE username:127.0.0.1.. I have tried everything I could possibly think of in the last hour to do this with one or two lines of code and can't wrap my head around it.
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May 24, 2009
How do I get the last charactor of a string, and remove it from the string? I know all the rules about 'We won't do your homework'.
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Oct 29, 2011
I want get the most specific from the current url in visual basic .net.I've tried several code but it just was the same.I have this code:
Dim CurrentURL1 As String = Request.Url.PathAndQuery
The code will result like: /FolderName/CurrentUrl.aspx
What I want is, just get the 'CurrentUrl.aspx'.How to get that?
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Apr 14, 2012
this would be my string Panipat,Patna,Result should be Panipat,Patna,Panipat,Patna,Result should be Panipat,Patna Panipat,Result should be Panipat,Panipat,,Result should be Panipat How can i do it
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Mar 26, 2011
input : how to remove 1 white-space character
output : howto remove 1 white-space character
how to remove single white-space character....i try to use regular expression but cant work...
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Aug 21, 2009
Dim str as string = xxxxxxxxxxxxxxxxxxxx£xxx£xxxx**£**xxxxxxxxxxI want to remove £ in the bold which is always at certain position (11th for instance) from the end. The whole string is a long one, always change in size and can't be counted from the start. Can't use Replace as well, there may be same characters at other positions that I don't wish to remove.
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Nov 21, 2009
How can I use a recursive function to remove a character from a string thats stored in a array.
Like so
MMMMM
MMMM
MMM
MM
M
I need to remove a letter from the string each time it loops through the string until there is only 1 letter left in the string.
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Aug 14, 2010
i have a string like this sravani/i want to remove last character '/' in the above string...which function can i use?
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