C# - Raise Event Using AddHandler?
Sep 28, 2009I am comfortable with Vb.Net events and handlers.how to create event handlers in c#, and raise events.
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AddHandler Not Working - Raise The Event In Form
Aug 17, 2010I'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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Use Raise Event To Raise A Programmatically Added Event
Jun 12, 2011i 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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Raise Event - Put An Extra Event In - UpdateID And It's Not Firing
Aug 9, 2011I am trying to put an extra event in, UpdateID and it's not firing.
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Industrial App: Raise An Event For Something That Doesn't Have An Event?
Sep 15, 2010I 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.
.net - AddHandler Only If No Handlers For Event?
Jan 25, 2010I 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
Trigger An Event With AddHandler?
Nov 29, 2009I 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 ??
Event Handler Not Firing Using AddHandler?
Oct 15, 2010I 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]....
How To Raise Event In Vb Asp.net 2.0 ?
Sep 14, 2010How to raise event in vb asp.net 2.0 ?
View 2 RepliesRaise Event After All Others Done?
Apr 8, 2010Is 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?
View 1 RepliesAddHandler Event Seems To Cause The Themes' Css File To Not Be Applied?
Feb 1, 2009I 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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Event Addhandler, RemoveHandler Repetition Conundrum?
Apr 14, 2010I'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
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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?)
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 RepliesDifferent Methods To Raise Event?
Dec 15, 2011Normally I raise an event like this:
RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propertyName))
Event Which Raise When A Processes Comes Up?
Mar 13, 2011I 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.
View 1 RepliesRaise An Event From A Class?
Mar 11, 2009I'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
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Raise An Event In Vb2003?
Jan 28, 2010how 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)
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Raise An Event When The Property Value Changes?
Jul 13, 2011I 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?
View 6 RepliesRaise Event And OnClick?
Sep 27, 2009I 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?
View 9 RepliesRaise Event BindingSource_AddingNew?
Mar 26, 2012How do I format,
EventzBindingSource_AddingNew(EventzBindingSource,
???)
to raise this event:
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Raise Event From A Sql Database?
Nov 29, 2010I 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?
View 1 RepliesRaise Event From Sub Class?
Sep 6, 2009I have 2 classes one main class called Mygrid and another class inside it called TLBoxEditingControl which inherits a textbox into grid cell.Also I have added one Listbox called LstBox to the usercontrol MyGrid.
1) Initially its visible is false. How can i make visible true in TLBoxEditingControl class.
2) I have an Event called MyList() in Main Class, how can I raise this event in TLBoxEditingControl class.
Here is the code i use, This is not working please expalin
Public Class MyGrid
Inherits DataGridView
Public Event MyList()
[code]....
I have added this control to a form and added this code
Private Sub MyGrid1_MyList() Handles MyGrid1.MyList
MsgBox("ggg")
End Sub
Here the event is not raising.
Raise Event On Setting Nothing?
Feb 14, 2011Is there is an event that get raised when oject of a custom/user control is set to nothing?
View 5 RepliesRaise Event When List Changes?
Jan 4, 2012I want to get an event when a list item is added.
Private WithEvents newMessages As New List(Of NewMessageList)
Private Sub VariableChanged(ByVal NewValue As Integer) Handles newMessages.listChanged
MessageBox.Show(CStr(newMessages.Count))
[code]....
This part is the issue: newMessages.listChanged because the even can not be found. What am I missing?
Raise The Event Handler?
Jan 18, 2012I converted some code from c# to vb, I have the following error:-
m_axCalendar.DoRetrieveDayEvents += New AxXtremeCalendarControl._DCalendarControlEvents_DoRetrieveDayEventsEventHandler(m_axCalendar_DoRetrieveDayEvents)
Red Error = Error1'Public Event DoRetrieveDayEvents(sender As Object, e As AxXtremeCalendarControl._DCalendarControlEvents_DoRetrieveDayEventsEvent)' is an event, and cannot be called directly. Use a
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I can get rid of Blue error by changing it to : AddressOf m_axCalendar_DoRetrieveDayEvents Not sure how to fix red error?
VS 2010 AddHandler Not Adding Second Event Handler For Control?
Jan 6, 2012I am playing around with Drag and Drop, and I am having an issue with AddHandler. I am creating labels and displaying them on a form. Before I add each label to the form, I add 2 event handlers (DragEnter and DragLeave). When I run the code, it hits the first event handler (DragEnter), but doesn't hit the second event handler (DragLeave). Either I have coded something wrong, or the second handler is not being added.
Here is my code (note this is just something Im playing around with for learning):
Public Class Form1
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
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C# - Raise An Event Once I Reach End Of Method?
Jul 1, 2010How to raise combobox_SelectedIndexChanged(object sender, EventArgs e) programmatically? Lets say i have method called ClearFields(). I want to call the event before i hit the end of Clearfields() method.
View 4 RepliesC# - Raise That Event On The OtherXXX Instance?
Mar 20, 2012I need to transform the following in VB.NET from C# (.NET 4)
class XXX:
public event EventHandler ContentScaleChanged;
if (otherXXX.ContentScaleChanged != null)
{
otherXXX.ContentScaleChanged(c, EventArgs.Empty);
}
I cant' do RaiseEvent ContentScaleChanged(c, EventArgs.Empty), because I need to raise that event on the otherXXX instance...
Form Never Raise Paint Event?
Nov 12, 2011i've an owned form that never raise the paint event, and so i can't make it rounded...
View 6 RepliesHow To Raise Event In Mocked Interface
Jan 31, 2012I'm trying to raise an event in a mocked interface. I can get this in C#, but for some pain-in-the-butt reason can't get it working in VB.Net. Hopefully I haven't missed the boat conceptually and all I'm missing is some syntax. This is similar to the code I'm working with:
Public Interface ISendable
Event SendMessage(message As String)
End Interface
''**********
Public Interface IPrintable
Sub PrintAnnouncement(announcement As String)
[Code] .....
How to complete or correct the line in my test class that begins "sendable.Raise..."? Maybe there is more setup I need to do, but the Moq site didn't seem to indicate this is the case.