Map Numpad Scan Codes To Keys In KeyPress Event?

Jun 8, 2009

How to map Numpad scan codes to keys in VB KeyPress event?

Meaning I want to track key 1 when NUMLOCK is ON OR OFF.

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Handling KeyPress Event For Arrow Keys?

Feb 3, 2012

Basically I need to handle a keypress or keydown/keyup event on a form, specifically for the Up, Down, Left, Right arrows. Using the below, nothing moves. However, if I change (Keys.Left) to (Keys.A) then a capital A will move the object.
vbnet

Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Me.KeyPress
If e.KeyChar = Microsoft.VisualBasic.ChrW(Keys.Left) Then
'Note that 'man' is a PictureBox.
man.Location = New Point(man.Location.X - 5, man.Location.Y)
End If
End Sub

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Keydown Event : Numpad +,*/ Buttons ?

Aug 3, 2010

How can I get VB.net to work out that i have pressed +-*/ in Keydown events?

At the moment i am using a Select Case:

Select Case e.Key
'Numpad Numbers Keydown Events'
Case Key.NumPad0
Display.Append("0")
txtAnswer.Text = Display.ToString
Case Key.NumPad1
Display.Append("1")
txtAnswer.Text = Display.ToString

However, I can't find a key. thing to work with the numpad function buttons.

I tried using:

Case AscW(Chr(107))
Display.Append("+")
txtAnswer.Text = Display.ToString

But it didn't work,

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Comboxbox Keydown/keypress Handleing Keys.Enter Empty Comboxbox1.text?

Jan 9, 2009

I have a keyboard handler for my combobox1:

Private sub Combobox1_Keydown(....yaddda) handles combobox1.keydown
if e.keycode = keys.enter then
msgbox(combobox1.text)
end if
end sub

this always displays an empty message box,I need the value of the combo box before the enter was pressed, apparently the enter key empties the combobox1.text.

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Keypress (not Send) Event?

Jun 2, 2010

I couldn't manage what the matter is not even after searching. Here my question goes:I need to do a simple task (close my form on pressing escape key) and I use the following code:

Code:
Protected Overrides Sub OnKeyDown(ByVal e As System.Windows.Forms.KeyEventArgs)
Select Case (e.KeyData)
'Close on Escape

Well , it works when I click escape my form closes , but.. if I have pressed by accident or some else matter any of the arrow keys (up , down , left , right) before escape and then hit escape nothing happens. I checked if any other key does that and as I see it does not.

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KeyPress Event Not Working?

Feb 15, 2012

I just want to ask why my KeyPress event is apparently not working. What I want is that when I press the letter m, the selectedindex property of my listboxes would change. Here is the code;

Select Case Asc(e.KeyChar)
Case 13
Try
tray.ListBox1.SelectedIndex = tray.ListBox1.SelectedIndex + 1

[Code]....

I also want to know what the "e.handled = true" is statement for. I set the KeyPreview property of my form to false and true but it's not working as well. the KeyPress event should be triggered regardless of the control within the form that is in focus.

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Keypress Event Outside Of Application?

Nov 7, 2009

Is it possible to capture a keypress with my application, even if the application isn't focused?And if it is, could someone please point me in the right direction? (I.E things to look up, tutorials)

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KeyPress Event Using Scanner Gun?

Nov 15, 2011

I am trying to create keypress handler that will execute a line of code when Tab, Space, or Enter key is pressed or passed by the scanner gun while the control is in focus. I got it to work with space and enter key but with tab key, the cursor will just jump to the next tab stop without executing the code.

Private Sub Button2_KeyPress(sender As Object, e As System.Windows.Forms.KeyPressEventArgs) Handles Button2.KeyPress
Dim keyChar As Char

[Code].......

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Supressing The Keypress Event

Mar 4, 2009

I'm trying to create an application that uses a PictureBox to display an image. I use the arrows keys to switch images and the space bar to rotate the current image. Since the KeyDown or KeyPress events don�t get fired when I click the arrow keys, I had to override ProcessCmdKey. It works fine, the problem is: the applications also has a few buttons and when I click an arrow key the image gets switched but the button�s focus change as well, worst yet, when I press the space bar, the image gets rotated but the button which has the focus gets pressed.

[Code]....

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Backspace Characters In Keypress Event?

Jun 1, 2010

I have two textboxes and as the user types in one I want to append the text to another textbox.How do I allow the user to delete characters in the first textbox with backspace/delete key and have those changes replicated in the 2nd textbox?

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Capture Keypress Event Outside An Application?

Mar 11, 2009

how to capture keypress event outside an application

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Enable Keypress Event With ComboBox ?

Jun 2, 2011

We Could Easily Called A Functions By Pressing Enter In keypress Event. On textbox in vb.net. Eg.:-

If e.KeyChar = Microsoft.VisualBasic.ChrW(13) Then

Call Fsn()

End If

But. I can not called the functions on ComboBox. IN similar fashion. please help me to called a Funtion when we press ENTER IN ComboBox.

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ENTER Keypress Event Only Handled Once?

Jun 22, 2010

I am trying to add to items to a combobox by using the "enter" key. It does work when I add the first item, but if I manually clear the box and add another items it does not get added to the list.

(1) I click in the combobox and type "hello" and press the "enter" key

(2) I click on the dropdown arrow and see that "hello" is in the list

(3) I select "hello" in the box and erase it, item is still in the list

(4) I type "goodbye" in the box and press the "enter" key

(5) "hello" is still in the list but "goodbye" is not

Here is the code:

Private Sub CopyrightCombo_Keypress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles CopyrightCombo.KeyPress
If e.KeyChar = Microsoft.VisualBasic.ChrW(Keys.Return) Then

[code].....

if I comment the if/end if line and type "hello" the items added to the combobox list are: "h", "he", "hel", "hell", "hello" wich makes sens since the add items is run on every keypress? I know that my commands for adding items is good, I know that my keypress event is handled properly but not when I specify using the "enter" key.

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GridView KeyPress/KeyDown Event Using VB?

Dec 26, 2009

using a datagridview and it bind by 3 rows and 3 columns,my task is when the press the F5 key then need to execute some code, my problem is if the datagridview cell is focused then now i press F5 key then the next task is executed but if the cursor is in the cell and i press F5 Key then the Key events was fired

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How To Handle Enter KeyPress Event

Jul 19, 2010

I am using the Event Handler below for the Enter Key Press Event, it is running when ever any of the keys is pressed. This is not so much a problem when the app. is running, unnecessary yes. It is giving me problems when ever I am Debugging using Breakpoints. How can I change the Handler so it only runs when the Enter Key is Pressed, doing away with the If statement?

Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Me.KeyPress
If e.KeyChar = Chr(Keys.Enter) Then
'Different code blocks will run here depending on what
'TextBox or Label is selected.
End If
End Sub

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IDE :: NumericUpDown Control And The KeyPress Event?

Aug 9, 2009

As part of a program that I am composing, the user needs to enter a value by way of a NumericUpDown control on one particular form. Once this and other criteria have been evaluated, the program will then move to the next "step" of the program. If they use the spinner built into the NumericUpDown control, the event is fired on every change and that's all well and good, but if they double-click the value in the control then type the value in manually, it doesn't fire until the control no longer has focus. I can't depend that this might be the case however. Using the "KeyPress" event, I can in fact know when the control has focus and the user has typed but what I cannot seem to get it to do is to get the control to"read" these keystrokes as values until the control loses focus.

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Invoke A Textbox KeyPress Event

Mar 18, 2010

anyone know how to invoke the KeyPress event ? This code shows what I would like to do, but it simply calls the eventhandler and does not insert the text into the text box, so is not what I want/need.

[Code]....

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Keypress - How To Use KeyDown Event In Form

Mar 10, 2011

I'm using VB.NET (2008) and .NET framework 3.5. In my application I've got an on screen button that, when pressed, sends "00" as the characters [via SendKeys.Send("00")]. I also have a keyboard that has a '00' key that sends "00", two zeros, when pressed. I'm picking up the keypress using the form's KeyDown event - it fires twice, once for each "0" and works whether the on-screen or keyboard '00' is pressed. There's also a singe '0' on-screen button and key on the keyboard that sends "0".

I want to be able to treat the "00" as a single event. I.E. in the KeyDown handler, if the character is a single zero "0", I would like to check the next character to see if it is also a zero "0". If it is then I can handle it appropriately, but also need to remove it (from the keyboard buffer?) so that it doesn't fire the second KeyDown event. If it's not a zero then it should be left to fire the next event in the normal fashion.

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Track Key In Keypress Event Of A Combobox?

Aug 8, 2009

how can i track keypress in keypress event of a combobox i try this:

[Code]...

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Use KeyPress Event And Resize Application While?

Aug 20, 2009

I've tired to use KeyPress event while in focus of my program's window in VB.Net, but it doesn't work.

For example I wanted to press the number "2" anywhere while in focus of the application and as effect the pixels of the window will change from 200,200 to 600,600 (hortizontal and vertical)

Private Sub Form1_KeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles MyBase.KeyPress
Form1_KeyPress(Keys.D2)
Dim size As Size
size = Me.Size

[Code]...

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VS 2010 KeyPress Event In WPF Application

Nov 15, 2011

I'm trying to create a WPF application and found out that there is no KeyPress event for Textboxes, so I used PreviewTextInput. Now, I want to have a function that will block the keys that will make the input data invalid. [code]Now, my problem is, when I choose numeric, the textbox still accepts spaces, how can I block the spacebar?

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VS 2010 KeyPress Event Not Activating?

Apr 28, 2010

I have a short program to try to capture keystrokes. The KeyPress Event does not activate?

Dim Hold As New TextBox
Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Me.KeyPress

[code].....

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Avoid Special Characters In Keypress Event?

Sep 5, 2010

i have a textbox in my form i want to avoid special characters in keypress event

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Capture Decimal Value In Datagridview Keypress Event

Jan 18, 2011

i am using the following logic to capture the keypress event in a dataGridView so that I can edit numeric cells but cannot capture decimal value in my code i cannot pass the digit.

[Code]...

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Capture Keypress Event When Window Is Not Focused?

Jul 11, 2010

i am trying my hand in visual basic 2010

it's a windows form program, what am i trying to do is, when i press ctrl+v (yes pasting) in other program, whether it be notepad or a text box, something also happens in my program.

So i need to capture the keypress event when my form does not have the focus.I would hate to create a windows service for this, but if there is no other way i might have to do it.

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Forms :: Keypress Event Is Not Triggered When Push A Key

Mar 23, 2009

I have created the following piece of code to try and see if the user pushes the 'f1' key, and if they do.

[Code]...

I am not sure if this code works yet because the keypressed event is not triggered when I push a key. Could someone tell me how I can change my code so that it will test what key is pressed, no matter what control on the form has focus?

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Forms :: Textbox's Keypress Event, Look For Ctrl+v

Apr 5, 2005

i know this has to be simple but i can find anything anywhere tonight on how to check if while a textbox has focus if the ctrl+v or ctrl+c was pressed i simply need to use it like such:[code]

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Get The Full Text Of A Textbox In A Keypress Event?

May 11, 2012

This is my code:

Private Sub prices_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles wholeprice_input_new_item.KeyPress, dozenprice_input_new_item.KeyPress, detailprice_input_new_item.KeyPress, costprice_input_new_item.KeyPress

[code]....

I want to validate all the characters. How I can make the event keypress validate all characters in a text box?

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Keypress Event - Displaying Images In Label

Mar 28, 2010

I need to display images when I press a key on the keyboard. I have a form with a textbox and a label on it. When I type a letter in the textbox it appears on the label. I got that part to work. But now I want to display a image in the label when I press a key on the keyboard. I have found some images on the internet that I want to display when I press a key on the keyboard. For example when I type the letter A in the textbox instead of A appearing I want an image of an apple to appear, or if I type the letter B a banana would appear, or if I type the letter D a dog would appear. I have been searching on how to this I came across the keyboard event such as the keypress event. Can I use a keypress event of the textbox to do this. Can I assign a certain image to a certain key on the keyboard, and have that image display whenever I press that key.

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Make Column Of Datagrid Keypress Event?

Aug 1, 2010

My question is how can I create an event that would catch an enter key when I am editing it. Like I would type a note and hit enter key when I finish. Because columns of the datagrid does not have events like other controls or datagrid itself. What I need is something like this:

Private Sub ColumnNote_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles ColumnNote.KeyPress
End Sub

[Code]....

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Use The Keypress Event To Control Object In VB 2008

Mar 15, 2010

well im creating a very basic game and im trying to use the keypress event to control my object. right now its set up through on screen buttons like

[Code]...

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VS 2008 Datagridview Display With Keypress Event

May 6, 2010

I have a datagridview bound to an Access datatable. It is nothing more than a one column list of chemicals. To allow the user to more easily navigate the list, if they press a letter it will jump to the first chemical alphabetically of that letter. If they keep tapping that same letter it will move down that list one by one. This all works fine. The problem is if you hold down the letter it will progress down the list but it doesn't show that progression. I want it to function much like if you hold down the down arrow key in a datable you'll see each successive cell be selected as it goes down the column.

[Code]...

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VS 2010 Custom Control KeyPress Event

Jun 20, 2011

I was asked to create an application that has a custom control that acts as a button. I managed to do almost all the requirements except the one for the KeyPress event. The customer wants to click the "Alt + C (for example)" to trigger the button click event in this case for a Cancel button. I did the code and it works fine ONLY when that custom control has the focus on it. But when it loses it, it doesn't. I don't know how to make the form accepts that KeyPress and sends to the custom control. I tried to set the form's KeyPreview property of the form to Ture but it didn't work too.

By the way, I know that it would work by writing the code in the KeyPress of the form but that's not the requirement because the user control will be used as a standalone component for many projects.

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Write Keypress Event In The Cells Of DataGrid ?

Feb 3, 2010

tell way to get: KEYPRESS event in the cells of DataGrid ?If user enters numeric value in Quantity, it would calculate & give result in Rate.How can I fire KEYPRESS event in cell

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Write Separate Codes For Every Button Click Event?

Nov 11, 2010

I have 50 buttons on my form and have to write code for click of all that buttons. So my question is do I have to write separate codes for every button click event:

[code]...

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C# - Use KeyPress Event Logic For Textbox.Text Assignment?

May 31, 2011

I have the below code on the KeyPress event of a textbox howver a need has now come in meaning I have to do myTextbox.Text = "A input string"

Private Sub ChequeAmountKeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtChequeAmount.KeyPress
Dim tb As TextBox = sender
If (e.KeyChar = "." AndAlso tb.Text.Length = 0) Then
e.Handled = True

[Code]...

This input string could contain a format that I do not want and whilst the keypress event caters for the need when the user is typing I need to handle it in the case of a text assignment.I thought firing the keypress event after I assigned the text property but I dont think that will offer what I want.

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Placing Multiple Pictureboxes To Different Location By Using Keypress Event?

Dec 19, 2011

I have this code. credits to jmchiney. My goal is when I press a certain key, the picturebox corresponding to that key should be moved to a certain location. Exactly like in the text twist game.

I have a code running and doing what I want but It is only applicable for single letter. For example the word alabama. all letters without duplicates are placed properly but for letter a, only one letter a is being accepted and moved. that goes for all letters.

Here is the

Dim pb As New PictureBox
Select Case (e.KeyChar)
Case CChar(letterPicbox1.Tag)

[Code].....

Another one. when a certain letter is already placed to the location I set and once I press again the same letter, the location changes. What I want is when I already gave pictureboxA a location and then I press "a" which correspond to pictureboxA again it should be stationary and check if there are other letter "a" in my pictureboxes and move the next detected letter "a" to the next position. Like i said. just like text twist game.

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VB 2010 - Keypress Event To Make Label Visible?

Dec 5, 2011

How can I set my application in VB 2010 to do something when I press a certain key on the keyboard? I heard somethin about the Keypress Event but i'm not sure that will actually work. I want a code so that my application can do the following things: If I press either the left or the right Windows Logo key on the keyboard, I want it to make Label2 visible. I already set the Visible value on false in Mybase.Load.

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VS 2010 Dynamically Adding A Keypress Event Handler?

Oct 16, 2011

I'm new to VB and trying to add a Key(Down? Press?) Handler to a dynamicly created textbox. The error I get is "'KeyDown' is not an event of 'Object'". How do I fix this?Here are the relevant parts of my

Public Class main
Structure square
Dim box As TextBox
Dim guessedVal As Integer
Dim correctVal As Integer

[Code]...

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WinForms Text Controls - Keypress Event Handler

Mar 14, 2011

In connection with a windows form's text control the keypress event handler provides a key's identity through the KeyChar property of the event argument. This works fine for all alphanumeric keys and Ctl-a ... Ctl-z, Backspaceetc. but does nothing for such keys as Insert, Delete, Home, End, and the navigation keys. I would also want to read Ctl and Alt keys combinations etc. I have done these thing before, too many years ago, but forgotten it all. Tried the reference manual,but have not enough years left to succeed that way.

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[2008] Keypress Event That Only Allows Numbers, Backspace, And Enter?

Jan 15, 2009

I am trying to do an keypress event that only allows numbers, backspace, and enter. I have the part that only allows numbers

If Not (IsNumeric(e.KeyChar)) Then
e.Handled = True
End If

I need to know how to know what keychar the backspace and enter are.

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Create Custom Properties Keypress Event In Propertygrid Using Program Or C#?

May 23, 2011

I need a coding for keypressevent in particular properties from the property grid.

It is possible to create an event for these(PropertyGrid Properties) properties?

(or)

How to create custom events for custom properties?

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Replace Multiple Character In Textbox Keypress Event Using Program Or C#?

May 23, 2011

When i am pressing any key in the textbox it will return "A" Character.[code]...

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VS 2005 Code To Make A Form Keypress Event For Escape?

Jul 4, 2009

What's the code to make a form keypress event for escape? I know that "If e.KeyChar = Chr(13) Then" is for the ENTER button. What's the code for the ESCAPE button?

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