VS 2008 : Use The Keydown/keyup Events With Buttons In The Same Project And It Not Working Properly?
May 12, 2009
I am trying to use the keydown/keyup events with buttons in the same project and it not working properly. I have 4 red boxes and when I press an arrow key the box should change to green according to which arrow key it corrosponds to. I have this part working fine, however only when there is nothing else in the project. When I add in say 3 buttons, Button1, Button2, Button3 and try runing the program instead of the correct red box changing to green, button outline just moves between buttons 1,2 and 3. I have tried turning tabstop off for the three buttons but that didnt work. how to read the keydown/keyup while still having buttions that can be pressed with a mouse?
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Apr 1, 2012
I am creating an Excel add-in written in VB.NET. I would like to bind KeyDown and KeyUp events to the spreadsheet to record when the user presses and releases the arrow keys while navigating the spreadsheetIdeally, these events would be built into Excel alongside the native SheetActivate and SheetSelectionChange events, for example. Alas, they are not.
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Feb 14, 2012
How to make keyDown and keyUp in first time not go to first Row.? I have Listview After I focus to this Listview example to row 20 and then keyDown for the first time not go to row 21 but to the first row also keyUp not go to row19 but to the row 1?
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Sep 26, 2010
I try to catch the keydown event, but arrow keys don't fire this event, although I set KeyPreview = True. Arrow keys neither fire the KeyUp event. Not on the form or on any controls..
What is required to handle:
1. Arrow keydown or keyUp event with individual event handler based on mouse focus/hover (does the control have focus if mouse hovers on it, or it needs to be clicked?)
2. Mouse scroll events individually based on "mouse focus"
I don't actually need for the form... Since all the form is covered by controls.. But I need individually for different controls. Which are just buttons, labels and a chart control.
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Jul 5, 2009
Well I'm currently in the middle of adding a few fine details to a program I'm busy with. Basically whats happening though is that I want to be able to delete some settings on the fly instead of individually, I also want to accomplish this through a simple key press.
Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
If e.KeyCode = Keys.F1 Then
MsgBox("Do you wish to remove all entries and clear all relative data?", MsgBoxStyle.YesNoCancel)
If MsgBoxResult.Yes Then
[code]....
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Nov 17, 2011
I have a VB.NET application. When Texter or PhraseExpress is installed and enabled, the program behaves poorly. Debugging has revealed that at times I can press Enter in a field and no event will be fired (i.e. no breakpoints in the event handlers get hit), then I press it again, and they will be fired twice. (Basically these cycle if I keep pressing enter - one time nothing will happen, the next I get two events, the next keypress does nothing, the next triggers two events, etc.)
Since Enter is used in certain places to trigger searches, or to move between fields for fast data entry using the numeric keypad, this effectively breaks the program in these spots. The problem is highly repeatable - disabling Texter or PhraseExpress causes the program behaves perfectly normally. Enabling them again causes it to break. Note that in both text expansion programs, I have assigned NO events to the Enter key. In fact, with Texter (haven't done this particular test with PE yet), it happens even if NO replacements have been defined at all, simply based on whether Texter is enable or disabled.
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Jul 7, 2010
I need to calculate the number of weeks between 2 dates. This will be used in a billing system.
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May 21, 2010
i have created a list of buttons using the following
Dim Butt(20) As Button
Dim i As Integer = 0
While (i <= 20)
Butt(i) = New Button
Me.Controls.Add(Butt(i))
i = i + 1
End While
this means that buttons are created in the code and not on the form to begin with, so I don't know how to create an event for the click of a button in a list. Is it possible to do it with a parameter for i so that there is only 1event for all buttons in the list, and i is the button index array clicked?
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Jul 22, 2010
I have a pong type of game and I want the spacebar to pause the game... Here is my code to detect when the space bar is pressed.
Private Sub PongMain_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
If e.KeyValue = Keys.Space Then
Application.Exit()[code]....
For some reason the application is not closing... IS there something wrong with this code that I am not seeing?
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Mar 7, 2009
In the application I'm working on I use F1 and also a right mouse click to close the application since the graphics display full screen and there's no control in the upper right corner to close with. I use a good number of different keypresses to control things and everything works fine. When I switch away from the form that the applications starts in to a different form I'm not getting any response from either a KeyDown or a KeyPress event. Maybe someone knows what's going on. The ButtonClick and MouseDown events are responding just fine but for some reason the KeyDown and KeyPress events aren't. Below is code for one of the Forms that is unresponsive in this way. [code]...
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Mar 19, 2010
I am trying to make key shortcuts (e.g.: control + c = copy) in my program, but it seems to work in everything BUT the webbrowser control. I have keypreview set to TRUE, and have the code "for each control.... addhandler....form1.keydown" (you get the point).
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Mar 18, 2010
I am trying to make key shortcuts (e.g.: control + c = copy) in my program, but it seems to work in everything BUT the webbrowser control. I have keypreview set to TRUE, and have the code "for each control.... addhandler....form1.keydown" (you get the point).
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Dec 3, 2009
I am trying to catch key board events with the form keydown.
I am able to capture all the keydown events except the "Enter" key. When the enter key is pressed this code does not even fire.
Private Sub FrmMain_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
Select Case e.KeyCode
[Code].....
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May 9, 2012
In my old VB6 programs I use control events like Keydown to activate code. The code is the same for all text controls. However, I am hoping that there is a efficient way of handing this in VB.net. Using VB2010.
Private Sub txtField1_KeyDown(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles txtField1.KeyDown
ButtonState2()
End Sub
Private Sub txtField2_KeyDown(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles txtField2.KeyDown
[Code].....
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Jun 4, 2009
I have a TextBox which Is allowed only to read certain characters. I use KeyPress event to handle this event. I understand that The KeyPress event does not handle the pressing of the DELETE key on the keyboard. I do not want the user to be able to delete characters in the txtbox by using the DELETE key, I want the user only to be able to use the backspace key. I am writing this code in Visual Basic 2005. The following code appears to work in handling the DELETE key, but I am concerned that I might get bitten by the fact that I am using KeyDown and KeyPress on the same control (txtSource).
private sub txtSource_KeyDown(byval sender as object, byval e as KeyEventArgs) handles txtSource.KeyDown
IF e.KeyData = System.Windows.Forms.Keys.Delete then
e.handled=true
end if
end sub
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May 8, 2009
Private Sub Button9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button9.Click
If RadioButton1.Checked Then
[code].....
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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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Oct 27, 2011
Looked up a number of pages on KeyDown, and KeyPress events, and am just more confused than when I started. I am trying to get an event to fire adding value to a total when a user presses the Enter key. Not getting any compiler errors, and have tried utilizina MSDN's suggestions for IsInput, and PreviewKeydown. None are working..... I have tried working in the KeyDown using e.keyCode = Keys.Enter, and KeyPress using e.keyChar.Equals(Keys.Enter) in my conditionals.
Protected
Overrides
Function IsInputKey(ByVal
keyData As System.Windows.Forms.Keys)
[code]...
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Apr 8, 2009
i have a datagridview in which i want to know which row is selected by mousedown or keydown.. so in both case i want to use only ONE subroutine which can give e.rowindex , e.colindex value of datagridview...
Example..
Private Sub xyz (s as sender, e as keydownaurguments, m as mousedownaurguments) handles keydown, mousedown
'\\ code
end sub
[Code].....
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Mar 4, 2011
I have an application similar to calculator, with button from 0 to 9, Enter and Clear. I made it possible to use the buttons by clicking on them and also by using numpad, like shown below: Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
Select Case e.KeyCode
[Code]...
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Nov 15, 2009
Im trying to get my radio buttons working so i can select different alarm tones for my alarm clock, but i cant seem to get it working.
Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick
Dim time As String
Dim alarm As String
[code]....
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Apr 5, 2010
Here is a simple class I coded inheriting SimpleShape in VBPower Packs. The events are not firing. What might be the reason? I checked the property "CanRaiseEvents" and it says "True"
[Code]...
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Sep 2, 2011
when I added a textbox to my form, my keydown events no longer work. It seems impossible to get the blinking cursor out of the textbox so as to avoid targeting it. How do I retain keydown events when a textbox is added to the form?
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Apr 3, 2011
Private Sub Form1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
If e.Control Then
MessageBox.Show("aaaa")
End If
End Sub
As you can see, my form will check for when the control key is pressed down.But it doesn't work. Why?
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May 11, 2011
I have checked my code countless times, tried other computers, and yet the keydown event will not work.
My code:Private Sub Form_KeyDown(KeyCode As Integer, Shift As Integer)
If KeyCode = vbKeyRight Then
imgPerson.Left = imgPerson.Left + 500
End If
End Sub
That's all there is because I was just testing it out. imgPerson does exist, so that's not a problem.
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Feb 20, 2012
I am using the keydown event so that when i press the right arrow the image changes but when i run it nothing happens when i press the arrow key.I have enabled the keypreview Properties?
Private Sub Level1_KeyDown(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
If tmrWalk.Enabled = True Then
Else
If e.KeyCode = Windows.Forms.Keys.Right Then
[code]....
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Nov 23, 2010
I am using Visual Studio 2008 Professional to build a VB.NET console application. I have a text file that I want to copy to the output directory after a build. I would like to create a build event to do that, but I do not see a "Build Events" folder on the property page. Is there a setting where I can get this folder? Or, is there another way I can set up a post-build event to copy a file to the output directory? The folders I see on the Properties page:
[Code]...
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Jan 17, 2010
Im creating a "Deal or no Deal" game , heres a pic of it so i can explain this abit better.
All images on the form are pictureboxes. The boxes in the middle are all named box_1, box_2, box_3 etc.
What my code is currently doing is , when i click a box it randomally selects an image from an imagelist. All images in the image list have all the amounts that are displayed on the main form. So if for example "€100,000" is revealed when i click box 1 i want the picturebox on the form labeled "€100,000" to hide.
This is the part that im having problems with. The first time i select a box the image will display and the matching figure will hide. And from then on it will display the images when i click the boxes but wont necessarily hide the correct image (matching the one thats in the picture box)
Really hope someone can spot a flaw somewhere , because its driving me nuts now. Here are box_1 and box_2 codes. And also the project is attached if you would rather have a look to see for yourself whats happening.
Private Sub box_1_MouseClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles box_1.MouseClick
MsgBox("Are you sure you want to choose this box ?", MsgBoxStyle.Information)
[Code].....
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Apr 27, 2011
I am attempting to test that the event handlers between an interface and controller are wired properly. The system is set up like the example below:
[Code]...
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Mar 14, 2011
In my word processor I have an 'Open' option on a menu strip. Here is the code for it:
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
With ofdFile
.Title = "Select a file to open"[code]....
For some reason when I press the 'Open' item and open the ofdFile dialog box .txt files do not appear even when I have the 'Text Files' filter selected However, when I use the 'All Files' filter they appear. And the 'HTML Files filter is also working properly.Why are the .txt files not appearing when I use the Text Files filter?
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