AddHandler Not Working - Raise The Event In Form
Aug 17, 2010
I'm instantiating an instance of FormQuoteCard from formQuoteList, formQuoteCard has an event and I'm adding an event handler to form1, but when i raise the event in form2, nothing happens:
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Sep 28, 2009
I am comfortable with Vb.Net events and handlers.how to create event handlers in c#, and raise events.
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Jun 12, 2011
i guess the title pretty much states the question but i will give the senario to be more clear. i have a mousemove() event which i add in my program programmatically and i need a way for raising that event (again) programmatically too. raiseEvent control_mousemove() doesn't work as it says that "'control_MouseDown' is not an event of 'main'."
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Nov 12, 2011
i've an owned form that never raise the paint event, and so i can't make it rounded...
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Nov 11, 2011
during the development of my project, i've the need to raise the paint event of a form, to make it with rounded angle.The strange thing is that, when i use the invalidate comand on it, the repaint event (that sometimes doesn't go and i don't know why), doesn't make it like i need, that is, the dimension of the side is one instead of six pixel, and the angle are rounded, but the border is not visible.
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Jan 8, 2011
I have a module that handles adding controls and populating values on a form. One of the controls is a button (there can be many) which acts as a lookup. For some reason, when I click the Button, it winds up in the btnLookup_Click event and displays the various messages, but it does not update the label (labLookup) text on the form. Am I missing something?
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Apr 24, 2011
Project1 builds ShellControl.dll.One of the forms in Project 1 contains the event "Public Event CommandEntered As EventCommandEntered".
Project 2 builds the Windows Form application TestApp which use ShellCopntrol.dll built by Project1.Form1 in Project 2 contains the following statements:
Imports ShellControl.UILibrary.ShellControl
[code]......
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Jul 13, 2009
I have two forms, "Customer Information Summary" and "Products Sold". They are shown as separate tabs in a MDI window. When the data in "Products Sold" gets updated, I would like an event to fire from that form which could be handled in the "Customer Information Summary" form.
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Mar 30, 2011
Problem that you may have when dealing with two objects that are raising some events. Here, to make it obvious, I am closing the form, but the problem can be experienced with any other 2 classes event. First, what is the problem !
Let suppose that by pressing a button, you want to raise a custom event, then execute a method and then close the form
In that case, you may use a code similar to this
Event BeepIt()
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
RaiseEvent BeepIt()
[CODE]...
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Jun 13, 2009
I hava a MDI app. i have a mdiChlid(say A) and others n instances of another mdichild. i wanto to this others n instances can handle an event generate in the A mdi chlid. How ca i do this??
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Apr 26, 2010
I can't figure out why my addhandler is not firing?In the Sub "CreateTagStyle" the AddHandler is not firing when the LinkButton is clicked Is there some reason that addhandlers can't be added at certain points of the page lifecycle?
<%@ Page Title="" Language="VB" MasterPageFile="~/_Common/Admin.master" %>
<script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
[code]....
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Aug 9, 2011
I am trying to put an extra event in, UpdateID and it's not firing.
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Sep 15, 2010
I want to raise an event for an opto-input state change but not sure if I can. Basically I have 4 opto-inputs on a PCI control card - one of which changes pretty rapidly - that I currently poll with a timer. I'm looking at getting a proper hardware counter for that but the other 3 are production status indicators. I'd prefer it if they alerted the app to a state change though.
Depending on the state of one of the inputs I have to fire a relay which simulates a button push. Having been playing with serial ports and getting a very useful app built for logging production data into a SQL Server DB I want to re-visit a proof-of-concept system I built a few months ago.
Current code - which works fine - but I'd like to change is like this:
Private Sub tmrOptoInput_0_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrOptoInput_0.Tick
'Read OptoInput_1 to Monitor Track State...
Dim aType As Byte ' replace Byte with any other type
[code].....
Having 4 inputs so I need 4 timers, plus another one that polls the database and checks a status flag which triggers the app to start logging. I'd like it to be event driven rather than timer driven if at all possible but I don't know how and there's nothing in the control card docs. Also I can't seem to find anything relevant on the web.
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Jan 25, 2010
I want to set an event handler only if this is not set:
If GetHandlers(MyWindow.Closed, AddressOf MyWindow_Closed).Length = 0 Then
AddHandler MyWindow.Closed, AddressOf MyWindow_Closed
EndIf
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Nov 29, 2009
I am trying to build an add-on for some software. they are done using vb.net
I want to trigger an event called project selected but dont seem to get the option.
Ive selected the control but the event doesnt appear in the options list i can override the event by doing a Addhandler myControl.ProjectSelected, AddressOf newEvent is there any way in my newEvent method to run the orginal ProjectSelected event ??
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Oct 13, 2011
I have created simple windows form control with some events.
This form has button which opens Form with some settings.
Now, I need to raise the events inside the control when I click some buttons within the settings form ..
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Oct 15, 2010
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:
<tr>
<td class="sectionSubHeader lightgrey">
<asp:CheckBox ID="chkbxCOMAEFund" AutoPostBack="true" runat="server" />[code]....
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Sep 14, 2010
How to raise event in vb asp.net 2.0 ?
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Apr 8, 2010
Is it possible to run a sub routine on my form after all other sub routines have finished? I am having a problem using a filewatcher that watches a certain path and runs an SQL job if a certain file is pasted. For some reason my procedure leaves a file behind sometimes and others it does not. I was wondering can I use a form event to run a different procedure after all other sub routines on the form are completed that would check this directory for remaining files again?
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Feb 1, 2009
I am currently writing a website for a company to display their products to their customers. One of the things I am putting into it is the ability to add news items onto the homepage, only part of the admin side of the site.
I have managed to extract some news items from the database, and display them dynamically in a Web User Control which I have added to Default.aspx. I have managed to add buttons for "Update" with events. The problem is that, on clicking one of these update buttons, the page reloads with the theme applied (as it should), but the css files from the theme do not apply - the body text is bigger than it should be and changes back to the default font. I know the skin files apply as I have tried setting all button backgrounds to black by default. The css files seem to apply to any text which is generated from clicking an update button (I have it so it writes the title of the news item for the button that was clicked. This text is the size and font it should be). I have spent HOURS trying to work out why this is happening, with loads of Googling but no success. It is almost as if the theme is being applied between the PageLoad event and the ButtonClick event, but the skin files would say otherwise. Does anyone know why this is?
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Apr 14, 2010
I'm getting a bit more fluent in VB.Net, but am still a bit green around the edges in certain aspects. I'm creating custom controls, and am starting to rely heavily on AddHandlers to manage them.Until recently, I didn't realize that you can add multiple event handlers for the same control and same address
[code]...
The above code would create 10,000 copies of the same event, and if I would click on combobutton1, the event would fire 10,000 times. I only need to fire the event once, but sometimes my code is a bit circular, and there may be an instance where two or more addhandlers are designated for a given control and address. Is there a way to have a loop on my custom dispose event where it would look something like:
[code]...
Or better yet, remove all events from a control(On a side note, is there any way in the debug mode to see all the active events attached to a control?)
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Oct 28, 2009
Perhaps 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.
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Dec 15, 2011
Normally I raise an event like this:
RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propertyName))
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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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Mar 11, 2009
I'm trying to raise an event from a class. It looks ok but it did not raise the event as expected...?
Steps
1 - Load the form2
2 - Boutton1 call the form1 and load the class animation
3 - Class animation raise the event for the form1
Here is the code !
Public Class Form1
Private WithEvents AnimationTextChange As Animation
Public Sub mdiMainEvent_StatusTextChange(ByVal _text As String) Handles
[Code]....
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Jan 28, 2010
how to raise an event in vb2003
this my
Public Class Form1
Public Event TimerStart()
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
[Code].....
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Jul 13, 2011
I have a class with a property, and I want to raise an event when the property value changes, but I have no idea how to declare events, or call them?
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Sep 27, 2009
I have a button that I need to use twice, the first time I click it, it validates that a string inside a textbox is a certain length. That part works. What I want to do is press the same button again but when I press it the second time it is suppose to popup a hidden label. But when I try to use a raiseevent command it gives me an error saying "the button is not an event in my program" tell me how to use the OnClick?
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Mar 26, 2012
How do I format,
EventzBindingSource_AddingNew(EventzBindingSource,
???)
to raise this event:
[code].....
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Nov 29, 2010
I have an MDI parent form and 2 child forms. Each child form has data bound controls bound to the same sql table; one from is for displaying data and the other is for editing data. After the editing form closes, I need to update the data in the display form (if it is displayed). I can think of a few ways to do this, but I would like the display form to simply respond to an event raised by the database. Is it possible to create (and raise) an event in the database proper? If not what is the best/acceptable way to update data on a data bound form?
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