Get Information About A Processes When An System Process Event Is Raised An Event

May 17, 2012

I am making a function of an application that when a function is called the application will close all processes that are owned by the user and were started after a specific point. My thoughts on this would be to trigger an event in my application every time a process is started and ended, and only if the processes is owned by the user, the event should get information (e.g. the process ID, name, etc) about that process and add or remove that information to/from an array depending on if the process starts or ends. Then when a function is called end all the processes in that array.

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.net - Event Handler Is Never Called Because The Original Event Is Raised In Another Event Handler?

Apr 18, 2011

The 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]....

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Even Handler For A Process_Exited Event - Process Must Exit Before Requested Information Can Be Determined

Sep 24, 2010

I wrote the following lines of code within the even handler for a Process_Exited event. The really weird thing is that on the fifth line I get the error "Process must exit before requested informaiton can be determined. (When trying to access the Exit Time & Exit Code)

Private Sub AssociatedProcess_Exited(ByVal sender As Object, ByVal e As System.EventArgs) Handles

AssociatedProcess.Exited
Do Until AssociatedProcess.HasExited = True

[CODE]...

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Why Is Event Being Raised Twice

Sep 7, 2010

This is the abstracted code for simplicity.

Public Class Form1
Dim WithEvents bt As New Button
Private Sub Bt_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bt.Click
MsgBox("Click")

[code]...

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ASP.Net Event Only Being Raised Every Other Time?

Mar 9, 2010

I have an ASP.Net web user control which represents a single entry in a list. To allow users to reorder the items, each item has buttons to move the item up or down the list. Clicking on one of these raises an event to the parent page, which then shuffles the items in the placeholder control.Code fragments from the list entry:

Public Event UpClicked As System.EventHandler
Protected Sub btnUp_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Handles btnUp.Click

[code]....

It originally looked in testing like every other time the value for sender (verified by its properties) that reaches UpClicked is of an adjacent ListItem, not the one I've just clicked on - the first click is always wrong, then the second for the correct control.At present,testing appears to show that the button's click event is just being ignored every other time through.Breakpoints on the click events within the control simply aren't being hit, though the events are definitely being established.

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Handle An Event That's Raised In New?

Aug 23, 2011

[code]But even here it seems the handler isn't registered until after New has completed.However, in real life the event is raised within code that's semantically part of the object initialisation, and I'd really rather not have to create some Initialize function.

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.net - FileSystemWatcher Changed Event Not Being Raised?

Apr 29, 2009

I'm working on a Windows Service that watches a few folders for changes, creations, and deletions. It all works well with the exception of one watcher that watches a single file (XML File with Configuration Settings) for minor changes.

I tried taking the Windows Service code and putting it into a simple windows application with start/stop buttons for the filesystem watchers and stepped through it. It never detects the file change of the XML config file. The changes are indeed occurring and the "Date Modified" of the file is updating.

XmlEventReferences = New System.IO.FileSystemWatcher()
XmlEventReferences.Path = "C:XmlReferences"
XmlEventReferences.Filter = "*.xml"

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Display Something When Basic Event Is Raised

Jul 27, 2010

I want to write an event that will simply display something when it is raised. I have never really worked with event driven programming before and am just trying to get a simple example working. It is not yielding any errors, but when I switch to debug mode I can see that the event it not raising correctly.

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Dropdown In UserControl - Event Is Not Raised

Jan 11, 2012

I have a user control named "LettersDropControl". It has a dropdown list. I am using this control in a aspx page. When I change the selected item it is not calling the ddlLetters_SelectedIndexChanged event handler? What change I need to make in order to execute the code in ddlLetters_SelectedIndexChanged event handler?

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="LettersDropControl.ascx.cs" Inherits="MSAJAX1.LettersDropControl" %>
public partial class LettersDropControl : System.Web.UI.UserControl {
private string selectedLetter;
public string SelectedLetter {
[Code] .....

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Handle An Event Raised From A MODULE?

Mar 2, 2011

I must be missing something really basic, but I just can't figure this out. I have a module (declared as a Module, i.e. a VB "static class") and I have an event declared in it, and places to raise the event. But I can't figure out how to handle the event.

Let's call the module MyModule with an even MyEvent. Like so:

Module MyModule
Public Event CallHelp()
Sub ExamineStuff( ByVal input As String)

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Determine Whether A Form Has Raised Its Shown Event?

Aug 5, 2011

I have an MDI application that can either run in TABBED or WINDOWED mode. When a user selects something from the menu a form is shown. All menuItem clicks pretty much look the same:

Dim frm As New <SomeForm>
frm.MdiParent = MDIParentForm
frm.Show()

[code].....

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Event Handler Does Not Catch Raised Events?

May 12, 2011

I have a test class with an implementation similar to this:

public class MyObject Public Event testEvent(ByVal duh As Boolean)
Public Sub New()
'some code here
End Sub

[Code]...

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Event Raised In Constructor Cannot Be Handled Outside Very Class

Oct 26, 2009

I discovered that an event raised (directly on indirectly) in the constructor cannot be handled outside the very class. To prove if that was the actual problem, I wrote a simple exemplary app.
Class with the event:
Namespace Utils
Public Class A
Public Event Test()
Public Sub New()
CallTest()
[Code] .....
The reason of such behavior became quite obvious after writing those pieces, but maybe there is a way to omit it?

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Get Index Of Item In Collection That Raised Event?

Jun 30, 2010

In a list of timers, how do I determine the index of the item that elapsed without having to iterate the collection as shown below (e.g. can I pass a paramater to OnTimedEvent, or can the collection raise an event to say which item fired???). It's the individual timer index that I need as I'm using it to refer to something else.

(I wont know how many items I'll have in the list in advance so I can't create an individual event handler for each timer - I don't think I should even if I did).

Public Class Form1
Private _timers As New List(Of System.Timers.Timer)
Private Sub Form3_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

[code]....

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VS 2005 Stopping Event Raised With Timer?

May 2, 2009

I'm new to VB and relatively fresh in programming in general. I'm trying to write code to make a label flash red. The method involves using a timer. Problem is, it flashes, but I can't figure out how to make it stop. xD Here's my

Private Sub SeleneExplainsToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SeleneExplainsToolStripMenuItem.Click
lblNumbers.ForeColor = Color.Red
Timer1.Enabled = True
AddHandler Timer1.Tick, AddressOf OnTimerEvent
End Sub

[Code]...

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VS 2005 Update UI In Event Raised From Thread?

Jul 3, 2011

I want to raise an event from a non-UI thread where the event will be handled by the UI. Currently, I have to use .Invoke in my methods (which updates UI) called from the event.

How can I raise the event, similar to Background Worker's progress update event, where I don't have to specifically do an .Invoke for UI updates?

Do I wrap the event with a delegate or something? Sample code will be fine though, if the explanation was tedious.

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Button Click Event Is Raised Twice In Silverlight Project?

Feb 28, 2010

I have a central page loading child controls into a container in a Silverlight Project.Problem is events like button click events are fired twice after processing the child forms.Suspect it might have something to do with a double initializecomponent??

Private Sub btVolgende_Click(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles btVolgende.Click
Select Case Stadium

[code].....

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User Control Button Click Event Not Raised

Nov 4, 2010

I have a User Control that has been added to the page dynamically. When I click a button on that user control[cod]e...

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VS 2005 Test What Event Has Raised In A Multi Handler

Jun 2, 2010

I want to know what the Event has raised in a multi handler.

[Code]...

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Winform Event Raised In Subclass Won't Sink In Form

Aug 2, 2011

I'm trying to capture the initial value of a listbox immediately after it's clicked on, and before the SelectedIndex is changed. The following was taken from: MouseDown in WinForm ListBox Kills SelectedIndexChanged, converted to VB. The ListBoxComponent Class is in a Component that shows at the top of the Toolbox.

Public Class ListBoxComponent
Inherits ListBox
Public Const WM_LBUTTONDOWN As Integer = &H201
Public Event PreSelect As EventHandler

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Event Which Raise When A Processes Comes Up?

Mar 13, 2011

I want to act with a service (kill the procces) whenever a process (executable file) comes up.Obviusly it is an Event but I don't know what event is.

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Control Array - Add New Event - Click Event Code And Calling It A Doubleclick Event

Jul 31, 2010

I'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]...

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Handle An Event Raised In Class Inside Own Class?

Apr 14, 2009

I have a "partial" class in VB.NET. Half of it is auto generated by a code generation tool. That half implements INotifyPropertyChanged, so any properties in that part of the partial class raise the PropertyChanged event.In my "custom" part of the class, I declare another property that depends on one of the properties in the auto-generated side. Therefore, when that auto-generated property changes, I also want to raise a PropertyChanged event on my custom property that depends on it.

If I go into the generated part of the class and raise the event there, that will get overwritten if I ever re-generate that part, so I don't want to do that. I would rather add an event handler in my side of the partial class that checks if the generated property changed, and if so, raise another event for my custom property.

[Code]...

I'm assuming it's because normally you'd use the WithEvents keyword to tell the compiler that you're subscribing to events from that object. I don't have a clue how to do this inside of the class that's actually raising the event, or if that's even possible.

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C# - Difference Between Load Event,Activate Event And Enter Event In The Form?

Mar 30, 2009

I 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.

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Override An Event - TextChanged Event Not To Be Triggered When The CellClick Event Occurs?

Jul 20, 2010

I'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?

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Get FileDownload Event And Its Information?

Aug 12, 2011

currently i am trying to make a application which will only log information related to the downloaded file and its url location ....

when ever any file is selected to be downloaded on my system it will log its information and store it

this application should support all the browsers like IE , FF and chrome etc .

after logging information i have to show a popup message box

and display information related to to the file ...

i am not making a download file manager but just event logger storing and displaying information of downloaded file and its url location

can some one guide me where to start looking ..

which libraries are required for developing this application ?

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Accessing Event Viewer Information?

Nov 25, 2009

Accessing Event viewer information

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Event Type Clr20r3 P3 4a5c12c0 System.net.sockets.socket Exception And Application Crash On Some System While Running Well On Others

Aug 3, 2009

Event type clr20r3 p3 4a5c12c0 system.net.sockets.socket Exception and Application crash on some system. while running well on others. i go thorugh many forms and search a lot on google but not able to resolve the issue.

[Code]...

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VS 2010 Displaying Information During Drag Event?

Jan 27, 2011

I have a form set up for drag and drop. The dragging and dropping is working nicely, as it allows the user to put a pair of dots onto a rectangle, which is exactly what it is supposed to do. However, I would like to give them some information about where they are dropping the points. My first thought was that I could use a tooltip. However, it appears that tooltips are not displayed during drag events. The tooltip works well, and is showing what I want, once I have released the mouse button, but not before then. The only other alternative I can think of, and it is not a very appealing alternative, is that I have some labels elsewhere on the form to display the information.

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Create An Event When A Process Finishes?

Oct 29, 2009

how to create an event which runs when a proccess finishes.

First, the program launches a batch file, so in the task manager, it appears as "CMD.EXE".

So, the event goes on when the CMD is over.

I'm not sure about what code should I use to do so.

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