Difference Between Key Press Event And Key Down Event?
Jun 14, 2011what is the difference between key press event and key down event in vb.net.
View 14 Replieswhat is the difference between key press event and key down event in vb.net.
View 14 Replieswhat is the difference between key press event and key down event in vb.net
View 17 RepliesI am using VB.NET for Windows applications. What is the difference between Load event,Activate event and Enter event in the Form and in which order the above event is executed.
View 2 RepliesWhat's the difference between the SizeChanged event and the Resize event?
View 4 RepliesI'm creating a shooting game for my programming class' final project and I want the user to have to press "R" on the keyboard to reset their ammo back to 12. Here is like what I have so far[code]...
I've Dimmed intAmmunition globally so that it applies to all sub procedures. When I debug the game, the ammo goes down by one for every time I shoot (click) and when intAmmunition <= 0 all targets are disabled. I press the R button and they become enabled again, but then the label continues to drop from 0 to - 1 and so on.
I want to build in the functionality so that when eg, the Key "1" is pressed it can trigger an event like eg. set the counter to zero.
I have used the following code to test the function but it doesn't seem to work. I don't know if I have placed it in the correct area or it is doing what I want it to do as there is no message box that appears.[code]...
I am having a requirement in my project where User press '.' in his num pad and he wants the character ',' to be displayed (dats bcoz he is French User).
I tried changing the e.KeyCode but it is a readonly property.
Is there any other way to change the key in key events?
I need the code for implementing the keypress event for a textbox in a web application going to be developed using vb.net cum asp.net.
View 2 Repliesin my problems, i want to use event keyboard press 'Enter' on textbox, i'm very confuse because in event property from textbox there was Enter, but after I double click and read statement in that, after i test my program, there was nothing ,
View 2 RepliesIf i type values in textbox the linklabel should be visible otherwise it shouldnt be visible...
View 13 RepliesI want a variable (intAmmunition) to equal 12 when the R key is pressed. How would I do that in Visual Basic 2005?
View 1 RepliesI've read thru Iceplug's tutorial on control arrays and got it working. I tried to add a new event by basically copying his click event code and calling it a doubleclick event. I used the proper addhandler and assigned the correct name to my sub. I have the click event changing the background color to blue and the doubleclick event changing the background color to green. The background color does not change to green. Why?
Heres the tutorial with my new code encased in asterisks ...
Code:
Imports System
Imports System.Windows.Forms
Public Class form1
[CODE]...
How to make an event for keydown, but for second press?
Yes, i know how to make event, eg.:
If e.KeyCode = Windows.Forms.Keys.Escape Then
Me.Close()
End If
But i want code for second press. For example...:
First use button space: open form1 Second use button space: open form2
how can i trigger a label_click event on the press of a key.
View 13 RepliesI'm trying to validate a few things in a form I'm building. It has a datagrid with clients info (taken from an access database) and a few textboxes where the user can type some search criteria. The thing is that those same textboxes are used to add new clients to the database and to modify a client's information if one from the datagrid is selected, so I made it that the buttons to insert and modify clients are disabled on load and thenevery time the text on a textbox changes ("TextChanged" event) they become enabled. So far so good. But then I wanted to make it so when a client from the datagrid is selected both buttons become disabled again until the text on a textbox changes (to make sure they're adding a different client and not the same one that was
selected).
I tried using the CellClick event from the datagrid to disable the buttons, but since every time a client is selected from the datagrid the info is shown on the textboxes, this triggers the TextChanged event too, and the buttons become available.So, is there a way I can tell the TextChanged event not to be triggered when the CellClick event occurs?
How i can call one web page in VB.net when Press CLICK EVENT.???
View 1 Replieswell i want all my textbox's event- keypress should be called by using Delegate
The Function i need to preform on them is only Numeric
My code
Public Delegate Function mydelegate() As Char
Public Function key(ByVal e As System.Windows.Forms.KeyPressEventArgs) As Char
Dim ch As Char = e.KeyChar
[Code]....
The problem comes when i use this code it surely gonna restrict me entering the alpha characters but i m facing problem is i can enter only a single digit number
i.e when i try to enter 45 it's simpley don't expect it only value which it is accepting is [1],[2] what i want it should accept the value's in two digits,three digits and so on..
In Key Press Event i have put the logic of search in textbox, when i press enter key it will take the values from textbox and brings the data in DataGrid.In another event of GotFocus there is an logic of autocompletestring collection from Table. If i type a in that textbox it will shows all the suggested string in that.
If i comment the logic of GotFocus Event for textbox for autocomplete suggestion then only then Key Press events work else its not working. I dont know why its happening.
[Code]...
How I can hook on my entery tool forms when user press ENTER key to go on next Control which can be any dot.net control which is indexed by TabIndex?My client don't like to use TAB key to jump on next control, they like ENTER as well and we need to refactory all VB 6.0 projects in VB.NET 2005...
Private Sub txtField_KeyPress(Index As Integer, KeyAscii As Integer) If KeyAscii = vbKeyReturn Then
KeyAscii = 0 SendKeys "{TAB}" End If End Sub
Of course above pice of code is just sample code how this is working in VB 6.0... How I can do something like this in VB.NET 2005?
I'm building a windows application to process the editable pdf template, using iTextSharp. The pdf template has button fields, on click of which additional sections are inserted into the pdf file. Now, I have to invoke the pdf button press event programmatically through my vb.net code to insert the additional sections into the pdf. How can I get the button fields and how can I invoke the button press event programmatically.
View 1 RepliesIn Key Press Event i have put the logic of search in textbox, when i press enter key it will take the values from textbox and brings the data in DataGrid.In another event of GotFocus there is an logic of autocompletestring collection from Table. If i type a in that textbox it will shows all the suggested string in that.If i comment the logic of GotFocus Event for textbox for autocomplete suggestion then only then Key Press events work else its not working.
Code:
Private Sub CustomerName_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles CustomerName.KeyPress
If e.KeyChar = Chr(13) Then
[code].....
how can I detect if press Enter in the Textbox Change event and not in Textbox Keypress?
View 3 RepliesThe event handlers in my parent class are never called though the events are raised in the child class.
The Code:
Public Class childForm
Public Event checkboxchangedEvent(ByVal checkbox1 As Boolean, ByVal checkbox2 As Boolean)
Private Sub checkboxchanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged, CheckBox2.CheckedChanged
[code]....
I believe there wont be any diff if user clicks the button on the form and the click event is fired OR if we call the button click event / function in the code. Because in one my project, this does make diff. If I click the button on the form, the App works great but same button if I click it thru the form code, the whole process crashes. This happens in Vista / VB.net.
View 12 RepliesI have two questions in my mind!
1) What's the difference in mouse hover and mouse enter event in regard of vb.net?
2) Is embedding a resource in application more efficient or linking it on compile time?
I'm trying to complete this airline reservation application, but having a problem in this part of the question:Creat an event handler for the FlightBindingSource's PositionChanged event: select FlightBindingSource in the class Name combobox then select position changed in method name combobox to creat the FlightBindingSource's PositionChanged event handler. Write a code to access the currently displayed flight object and pass its flightNumber to method DisplayPassengers as a decimal.This Is my code so far:
HTML
Public Class AirlineReservationForm
Private database As New ReservationsDataClassesDataContext()
Private Sub FillAll()[code].....
Eg. ""vb.net" timer event trigger on purpose". This application is meant to run at all times to download a web page every minute. To avoid freezing the UI, I read that the best solution is to move the code from a While/Sleep loop to a Timer that will be triggered every minute. The problem I have, is that the user must wait for a minute before the event is triggered:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Timer1.Interval = 60000
Timer1.Enabled = True
[CODE]...
Is it possible to force this event to occur instead of waiting for it?
I'm trying to execute different code depending on the button clicked (button 4 or 5) on Form1, but when I click on button5 to activitae the code on the Form2's Load event everything is Ok, but when I click the back button to return to Form 1 and click on the Button4 to activate the code on the Form2's Load event again, it doesn't active the Form's Load event, is there a way to form the form load event every time I access it from Form1? [code]
View 7 RepliesStarting from my understanding about Background worker control, I understands that the background worker runs the code in its "DoWork" method in a seperate thread, while ProgressChanged and RunWorkerCompleted events are executed on the main thread.In my senerio, I report the progress and under an specail condition my application displays a message box to the user in "ProgressChanged" method using MessageBox.Show(). and in "Run Worker Completed" event the application finalize some work. There the sequence is important, suppose that the message is of Yes or No type and finalization depends on it. Now when i run my application, the background worker triggers "ProgressChanged", but as soon as backgroundWorker's cancelAsync() is called the program leaves the current "ProgressChanged" method and executes "RunWorkerCompleted" code first.How can i make sure that the "Run Worker Completed" code executes only after the completion of ProgressChanged method.
View 9 RepliesProgramming language is vb.net
View 1 Replies