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]....
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?
I have a TextBox and set the MiltiLine property to true and AcceptsTab property to false.When the TextBox has focus and i press Tab it works fine and the next control get the focus, but when i press Ctrl+Tab it works as if AcceptsTab property is set to true and makes a tab character into the TextBox.The reason i press Ctrl+Tab.. when switching between forms in my MDI application.Now how to make a Ctrl+Tab when pressed works like Tab when pressed in a MultiLine TextBox?
View 1 Repliesestoy 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)
View 1 RepliesI 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]...
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
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
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?
[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?
View 2 RepliesI 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] .....
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.
View 1 RepliesI 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.
View 5 RepliesI 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]....
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]...
I have a series of textboxes that I need the user to be able to navigate. When the last textbox in the series is filled I want the cursor to go to the first box in the series and have the next row in the datagridview selected. The problem is, for some reason, the tab button being pressed (keyup, keydown, and keypress) is not being detected by the conventional handling of those events. Instead, the tab on that box goes to the next item in the tab index.How would I capture that key or key press event and execute my code?
View 3 RepliesI'm trying to make a bosskey. [code] However I want to be able to have the user press the keys they want and have it display what they pressed in a textbox. Next I want the textbox to be used as the key/s for the key down event itself.
View 1 Repliesi am here with another problem also relating with tab .now i had 15 textboxes in my form ,when i press tab on form it simply jumps from 1st textbox to 9th textbox .
View 3 RepliesI have added 6 textbox controls now I want specify the order in which they are accessed when tab is pressed like txtbox1 then it goes to txtbox2 and so on.
View 4 RepliesI thought it was simple but i guess it's not...How do I detect when the tab key is pressed in a textbox?I've tried the following code in KeyPress, KeyDown, Leave, etc. events but the tab is not detected.
View 6 RepliesPrivate Sub NumericKeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
[Code]...
and it wont let me use backspace. How would I make it so I can use backspace?
my application made in visual basic 2010 is not working in windows 7? what's problem?
View 1 RepliesHow can I set a button, so that when it is pressed, it stays in the pressed down graphic state. Then when pressed again it returns to the normal not-pressed visual.Make a button stay like this until pressed again: url....
View 3 RepliesI intend to choose developing a Web Content Management System using asp.net with VB.net 2008 but I'm not sure about how long it takes to program such system. Is 4 months enough for developing such system? This 4 months is the duration of this semester and Includes about two months for analysis and design and the rest is left for implementation.
View 2 RepliesI got a problem with my setup I had set the prerequiest download property to download from the same location. Now i am in a problem that my setup dose not check for the already installed prerequiest it starts the prerequiest installation no mater if they are installed or not. after the installation of these prerequiest it says to restart the computer and after restart it starts the prerequiest setup again.
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Private Sub frmMainCustomerDetails_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
If MyState = "Edit" Or MyState = "Add" Then
[code]....
"The executable exename.text dose not exist!" but im not sure how to do it, How would i do this?.
View 3 RepliesI'm writing an in-house intranet application in ASP.NET and VB.NET. My 'customers' are beginner to medium-level users. All of our browsers are IE8 and above, standard.The application works great, except for one thing. The backspace key. When a user types an invalid number into a textbox, a RegularExpressionValidator and ValidatorCalloutExtender fire off and notify the user. Perfect. Except that, when the user closes the popup warning and notices the cursor is still flashing in the textbox, he/she feels it's time to hit the backspace key and delete that pesky field value.
Unfortunately, the browser interprets this action as a desire to go 'back' into the page history. My boss is screaming. His bosses are screaming. I have a headache.So, how can I turn off this behavior? I still need the backspace to eliminate characters in the textbox, but nothing else. Company policy here: Backspace is to delete characters from the screen. Nothing more, nothing less.
can i disable backspace in my keyboard in vb 2005.
View 4 Repliesi am creating a backspace key for a calculator. first of all a currency needs to be chosen by clicking a button, when for example the is clicked the text is entered into the texbox. But when i use the backspace it deletes here is my code..
Private Sub btn_pound_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_pound.Click
'Enable the keypad when the pound sign is clicked,Disable the curency buttons after'
pnl_numbers().Enabled = True[code]....
Private Const WM_KEYDOWN = &H100
Private Const WM_KEYUP = &H101
Private Const VK_BACKSPACE = &H8
[code].....