Questions tagged [eventhandler]
In object-oriented programming languages (such as C++, Lazarus Pascal or Visual Basic), visual objects (or components) can respond to *events* (usually) by the user. An event handler is the block of code that runs when an event occurs. Eg: *Onclick* event for a command button.
eventhandler
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Pressing button in the main window to execute an even in user control
First, I would like to mention that I am a beginner with C#/WPF and trying to do my best to learn it.
I have a main window with multiple navigation buttons on its left side to navigate between user ...
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How to Handle Incoming Messages in TelegramBotClient in C#?
I'm trying to develop my first Telegram bot using C# in Visual Studio. I've been following tutorials, and everything seems to be going smoothly. However, when I try to handle incoming messages using ...
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jQuery: onclick event works only the first time
Trying to add two event handlers on two elements respectively. The second element will only appear in DOM after users clicks the first element. My problem is the first event handler only work for one ...
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Calling Function from Click Event in Leaflet
I am hoping there are some Leaflet experts here who can explain what I'm missing in the code below.
I am only a hobbyist programmer so I apologize if my terminology doesn't make complete sense.
I was ...
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event and event listener laravel 11
I can't add constructor in my event listener.Laravel 11 there is no EventService provider also. I need an example for this
public function handle(NewUserEvent $event): void
{
Mail::send('...
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Async await and event handler
Is it permitted to convert a usual event handler from void to Task based, and await it like below?
Something.PropertyChanged += async (o, args) => await IsButtonVisible_PropertyChanged(o, args);
...
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C# Event Handler Issue Updating Control
So, here is the layout:
frmClient = uses frmLogin (LoginWindow) which has OnLoginEvent
this event is received by frmClient, and will update the statusbar (doesn't have invoke)
frmClient also uses ...
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SQL Server Job execution after the job stopped
I started one a job from the ‘Job Activity Monitor’, I stopped the job after few minutes once I realized that this is not the job I should be running. The next day, the stopped job triggered by the ...
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in python code, Is this a proper place to use dependency injection -- if so, how
The code setup is as follows:
Module ui_theme.py defines a theme and variant selector.
variant_selector has an on_change event handler.
Module cards_page.py imports ui_theme.py
and has a handler ...
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Add different sounds to different buttons
I am working through a project using Javascript and jQuery. The projects requires me to add sounds to buttons. A different sound should play depending on the button I click. I know how to add a single ...
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How to remove wrapped/custom event handler added from an instance of a class VB.NET
I need to create multiple instance of zkemkeeper.CZKEM to create active (250+) connections to multiple biometrics devices with events at a time. I created a class to do my desired output:
Public ...
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C# EventHandler invoke in class A, action to run in class B
I have implemented an eventhandler that should be invoked when "OpenProject" is completed. The event is listened from another class.
What I see testing the code is that the "work inside&...
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Facing issues with dropdown button in Flask
I am building a basic search page in Flask.
When the page loads, I enter the search bar and get the results.
Then when I click on the drop-down, I can only select 1st option, "Organization" &...
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How to loop over an array and create a unique event handler for each item
In my application, I have a list of apps,
apps = [
App("app1", "username1", "password1", "----"),
App("app2", "username2", "...
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How to pass EventHandler as parameter in Blazor
Trying to pass an EventHandler to a Blazor component. Error I'm getting:
The event AppState.IntegerChanged can only appear on the left hand side of +=
Seems like this should work, is it a blazor ...
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