VS 2008 Call An Event Handler From Code?
Sep 30, 2009Simply stated, I want to call the Panel1_Paint event handler from the Button1_Click event. Is this possible? If so, How? IE: Click the button and it paints the panel.
View 6 Replies
ADVERTISEMENT
Directly Call An Event Handler?
Apr 23, 2011I have a MouseMove event handler
Private Sub Form1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Me.MouseMove
how do i directly call it, even if the mouse was not moved?
I tried..
Form1_MouseMove(sender, e)
but it did not work...
Asp.net - Call A LoginStatus.LoggingOut Event Handler From Javascript?
Jul 22, 2011I have some javascript that should log a user out after a certain period of inactive time.I have an event handler in the code behind that handles the normal LoggingOut event of the LoginStatus object, but I can't figure out how to call it from my javascript.
I know you can use __doPostBack to call an event handler that handles the Click event of a link or button, but it doesn't seem to work for my LoginStatus object - I'm thinking it might be because it has no Click event (here's the doc) - it's not really a normal link/button.
The only other way I can think of to handle this is to create an actual logout button/link, write another event handler that does the same thing as my LoginStatus event handler, and call this new one using __doPostBack.Is there any way I can call the LoggingOut event handler from my javascript?
The page:
// html
<asp:LoginStatus ID="loginstatus" runat="server" />
...
// js
[code]....
.net - Event Handler Is Never Called Because The Original Event Is Raised In Another Event Handler?
Apr 18, 2011The 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]....
Creating Event Handler In Code Behind
Feb 16, 2010I have a control that is created in the code behind and generates fine but I can't figure out how to create an event handler for it.I've found plenty of examples for it in C sharp, but none of them seem to apply to VB.
View 4 RepliesAdd Code In A Dateforms Load Event Handler?
May 6, 2010I am working with database information,and I have to add code in a dateforms , load event handler .That should set the value of the date time picker to match that of the date time picker in the main form?
View 1 RepliesHow To Run Event Handler Code On Form Load
Feb 23, 2009I have a form that is built and loaded dynamically when File/open is selected.however I now want to use the same code to open a default file and populate the form using the Form load event to call:
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click how would I do this? Just incase this doesn't make sense, I want the same code to run during form load as if the user selected file/open but do not know the syntax of how to call OpenToolStripMenuItem_Click() from form load.
Pause The Execution Of Code In An Event Handler?
Mar 9, 2009how to pause the execution of code in an event handler.
For instance in a forms load event how can I have the rest of the programs features continue to run but wait 5 seconds before the code in the load event handler is executed?
Call Code From An Event (like: DoubleClick) From Within Another Event?
Oct 29, 2010am trying to call a very lengthy set of code from under the DoubleClick event of one control, from within the Click event of another control....without having to copy and paste the desired VERY length code from the first control into the second.
View 3 RepliesFiring An Event Handler From Within A Nother Event Handler?
Aug 27, 2011How do I get a Event Handler to fire from within a nother Event Handler?
View 6 RepliesVS 2008 Event Handler For ColorAnimation
May 8, 2011Can someone help me with the code for an Event Handler for colorAnimation in VB.net. All I get so far is code in c#, which I do not follow very well. Please also show how to call or raise it from a control e.g. a button.
View 8 RepliesVS 2008 Add Parameter In Event Handler
Jul 16, 2011How can i add one more parameter in System Events for ex : I want to add a parameter in Button Click Event.
View 5 RepliesVS 2008 Event Handler In Sub Routine?
Oct 30, 2009I've recently learned a new trick. I never realized you could write a sub and then handle multiple controls' events right in the sub.instead of handling each controls click event, for example.
[Code]...
VS 2008 UnhandledException Event Handler?
Mar 25, 2010if you have this in your Application events: Private Sub MyApplication_UnhandledException(ByVal sender As Object, ByVal e As Microsoft.VisualBasic.ApplicationServices.UnhandledExceptionEventArgs) _ Handles Me.UnhandledException 'test to make ceratin handlers both fire Debug.WriteLine("AppEventFired") End Sub nd to test it you do this
Throw New Exception("1") shouldn't the Debug.WriteLine("AppEventFired") line execute? It isn't that I can tell and I have checked that I am running in Debug, not Release.
VS 2008 Addhandler & Event Handler Args?
Oct 28, 2009Perhaps surprisingly I haven't added an event handler programatically before and I'm having trouble getting my head around AddHandler.I am creating a series of DataGridView controls in a loop and want to subscribe to the CellFormatting event on each of them.The event handler signature is as follows;Private Sub ConfigureRows(ByVal sender As System.Object, yVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs)This works fine when I enter it in the visual editor properties box but I can't figure out how to give it the correct arguments using AddHandler.
View 2 RepliesVS 2008 Bug With E.Keycode On KeyUp Event Handler
Dec 31, 2009I have this code
If e.KeyCode = Keys.D0 Or e.KeyCode = Keys.D1 Or e.KeyCode = Keys.D2 Or e.KeyCode = Keys.D3 Or e.KeyCode = Keys.D4 Or e.KeyCode = Keys.D5 Or e.KeyCode = Keys.D6 Or e.KeyCode = Keys.D7 Or e.KeyCode = Keys.D8 Or e.KeyCode = Keys.D9 Or e.KeyCode = Keys.Oemplus Then
[Code]....
The output WILL be 189 when I press the - sign. But when I check "Keys.OemMinus" it stands for 189 and when I replace "Keys.OemMinus" with 189 it won't work either!
I checked the Resources file and it's correct. The picture just doesnt change, only shows the last pressed button...
Asp.net - Call A Code Behind Function From A Div Onclick Event?
May 15, 2012I have a bunch of divs on my page that are added at run time dynamically. When any of the dynamically added divs are clicked - All need to call the same function in my code behind. Each of the divs must pass it's own ID to the function. I can't use web methods as the function needs to identify which div was clicked and then show/hide/populate other controls on the page.
[Code]...
VS 2008 Call KeyUp Event From MouseUp Event For A Textbox?
Aug 16, 2010In VB6 we had a code inside textBox_MouseUp to call textBox_KeyUp(-1, 0) and the signature of KeyUp was
Private Sub textBox_KeyUp(ByRef KeyCode As Short, ByRef Shift As Short) Handles textBox.KeyUp
Now when I migrate to .NET I changed the KeyUp event to Private Sub textBox_KeyUp(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles textBox.KeyUp
How can I do this call textBox_KeyUp(-1,0) now from textBox_MouseUp event?
VS 2008 Event Handler On An External Form / Module
Dec 6, 2009I have a simple, but important question: How can I raise events of my form1 on another module/form?My form tempalte is crowded with events (50 of them contextmenustrip events)How can I place those events on another form/module to clean it up a little?
View 7 RepliesVS 2008 Making A Paint Event Handler A Method?
Jul 4, 2009With reference to my previous thread on Paint event handler.. [URL] I went to read up more on Paint Event Handler.. I have a button which draw out a path based on the user selection.. Below contains the drawing of the path portion of the button click event code
[Code]...
However It did not activate the paint event when I clicked on the button.. Instead, the paint event still activate even before I click on the button? So can anyone teach me on how to activate the paint event when I click on a button?
Sample Code For Call Button Click Event
Mar 28, 2011i have two button one is PRINT button another is View Button .. for PRINT button it will print directly from default printer in crystal report in which created at visual basic the VIEW button will go to Crystal report viewer first before print..i need to call out the button click event (in which when user click PRINT or VIEW button)it will trigger to print directly statement in the form load crystal report viewer or if user click View button it will pop up the crystal report viewer UI before print.any examples codes i can do the calling button click event in order to do this ??
View 13 RepliesSample Code For Call Button Click Event?
Jul 19, 2009i have two button one is PRINT button another is View Button .. for PRINT button it will print directly from default printer in crystal report in which created at visual basic the VIEW button will go to Crystal report viewer first before print now my problems is ..i need to call out the button click event (in which when user click PRINT or VIEW button)it will trigger to print directly statement in the form load crystal report viewer or if user click View button it will pop up the crystal report viewer UI before print .. any examples codes i can do the calling button click event in order to do this ?
View 1 RepliesEvent Handler Code Cause A Object Reference Not Set To An Instance Of An Object. Error (only Present On Live Server, Ok On Dev)?
Mar 4, 2010Here is the code for the button click event;
Protected Sub CompetenciesButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles CompetenciesButton.Click
Dim con As String = WebConfigurationManager.ConnectionStrings("foo").ToString()
[code].....
Remove An Event Handler From Within The Event Handler?
Mar 21, 2012remove an event handler from within the event handler?
I have a class that gets data from a hand scanner. When the scan is complete and the data is validated, the class fires a custom "ScanComplete" event and returns the data in a custom EventArgs.
In the calling program, I'm creating an instance of the scanning class and adding a handler for the "ScanComplete" event. In the event handler I get the data that was scanned and then remove the handler.
It seems to be working but it feels wrong to remove the handler while I'm running inside the handler. Will this cause a problem?
VS 2008 Declare Variables Inside Each Event Handler / Program Runs
Mar 29, 2010I am teaching myself VB, and when I try to run this program, I am getting "An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object." If I was to declare the variables inside each event handler, the program runs, but why won't it run when I make the scope public? Seems repititous having to declare the variables in every event handler. [code]
View 7 RepliesAirline Reservation Application - Creat An Event Handler For The FlightBindingSource's PositionChanged Event?
Nov 27, 2010I'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].....
Event Handler For Dynamic Controls - Add An Click Event To Labels
Oct 20, 2009Below I create an array of labels. I would like to add an click event to my labels. Can someone point me in a direction?
[Code]...
C# - Adding Own Event Handler In Front Of Other Event Handlers
Sep 24, 2010When I utilize AddHandler in VB to add my own method to the Click event :
AddHandler Button.Click, AddressOf myButton_Click
I see that my code executes last - after other event handlers for the Button_Click event. Is there a way to insert my event handler in front of other events so that it executes first?
VS 2008 Call Click Event Of An Array Item Of Buttons
Mar 27, 2010How can I call the Click event of an array item of buttons? [code]I want to call the item 1.the Click event of an array item 1 of buttons?
View 2 RepliesA Handler For Event X?
Jul 30, 2011Is it possible to determine using VB.NET whether a certain event has any handlers attached to it? I don't own the event, in this particular case I want to know which of the items in a Windows.Forms.MenuStrip have their ToolstripMenuItem.Click event handled.
View 1 Replies