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Questions tagged [addhandler]

AddHandler (and the companion RemoveHandler) is used to add (and remove) event handlers dynamically in VB.NET

Add and remove event handlers dynamically in .NET

.NET lets you add and remove Event Handlers dynamically on the fly. Your code can start and stop handling events at any time during program execution. Also, you can tie the same code (event handler) to multiple events similar to the Handles clause in VB.NET.

The VB.NET AddHandler and RemoveHandler statements allow this behavior. Both statements take two arguments: the name of the event to handle and the name of the procedure that will handle the event.

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C# / vb.NET Bound DataGridView: Add Event Handler to DataGridViewComboboxCell

i have a bound dataGridView where i load a list of objects using a bindinglist. Each row has a datagridviewcomboboxCell and a textcell. The comboboxes are filled with enum values. Depending on the item selected in the combobox the textcell should…
gegy
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htaccess, If subdomain is not "dev" follow these instructions

How can I do it right? If subdomain is not "dev" follow these instructions RewriteEngine On Options +MultiViews Options +FollowSymlinks # -----------------%<----------------- # If subdomain is not "dev" RewriteCond %{HTTP_HOST} !^dev\.* # follow…
Cem Firat
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Outlook Addin per VisualStudio - Button Eventhandler

since several days I am searching for a solution, but I always get nearly the code for my problem. I want to create several buttons within Outlook via VisualStudio. These buttons should execute the same sub. But when I create the buttons with the…
vba_user
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VB WindowsForm Custom Class Event Handler Issue

I created a custom class (DataGroupBoxControl) that is basically a GroupBox with one or more Panels inside. Each Panel holds two Labels side by side as pictured below. enter image description here The object allows a DataTable to be passed into it,…
Johnny O
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EndSave (AutoCAD) is member of what (.net vb)?

EndSave (AutoCAD) is member of what (.net vb)? Is it Application.DocumentManager.MdiActiveDocument? I don't know where it is, so I can add a handler to register its event.
Rita Aguiar
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System.Object and System.EventArgs

I'm trying to write a simple calendar for selecting dates. I have an array of PushButtons, and now I'm trying to programmatically add event handlers. Public Sub Initialize() If EventID = 0 Then GetEmployeeData EventType =…
Joshua M. Moore
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VB.NET AddHandler for programmatically created object

I have this code to move with my forms. Public BeingDragged As Boolean = False Public MouseDownX As Integer Public MouseDownY As Integer Private Sub Mouse_Down(sender As Object, e As MouseEventArgs) If e.Button = MouseButtons.Left Then …
Skulaurun Mrusal
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Event handler scope issue

I've been struggling with this for hours. Hopefully some of you vb.net gurus can help restore my sanity. Scenario : I have an object (mqtt_client) which exposes connect / disconnect events that I need to trap and deal with. I need the object to be…
CWDev
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.htaccess: AddHandler for a single file?

I know that the AddHandler directive allows you to associate a file extension with a a process. Is it possible to associate a single file with a process? For example, I would like to process something.css go run a PHP script to generate some CSS…
Manngo
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Force Custom Event Handler First

When I create custom handlers like: Public Class MyCustomClass Public Sub AddHandlers() AddHandler Form1.MouseMove, AddressOf MoveMouse End Sub Private Sub MoveMouse(sender As Object, e As MouseEventArgs) MsgBox("Needs to…
user7419351
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Raising an event through subroutine

I'm trying to raise an event through subroutine to notify some of my program's observers that the animated transition has been completed. But it tells me it cannot be called directly and I need to use a RaiseEvent. I tried adding handlers, and it…
Mava
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400 Bad Request on Apache/PHP AddHandler wrapper

I'm trying to create a wrapper/handler that will be called on the Apache server whenever someone requests any PHP script inside of a directory. That way I can authorize users for the entire directory or write some other stuff to be called when the…
user471231
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Vb.net: array buttons to retrieve data from ms access database through the button text

i have a btn_menu where it will add dynamically a group of buttons depending on the menu name (once adding the button the buttontext(menuName) is automatically addded).. and those added button (programmatically) have an event "addhandler" where I…
Sheine
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How AddHandler from C# DLL to VB Proj

Someone know how addhandlers from C# DLL to VB App. When I try to use AddHandler into my VB project, the Visual Studio returns: Error BC30676 'DebugMessageEvent' is not an event of 'Debugger'... The Debugger.Instance.DebugMessageEvent is a part…
Elias Rodriguez Pizarro
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Event handler not firing using AddHandler

I have a form with about 40 checkboxes. Once a checkbox is checked, the div control's property should be changed from "none" to "block" or vice versa. I don't get an error, but the checkedchanged event isn't handled. Here is the markup: …
user356808
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