How To Reset MouseHover Event Trigger Function

Sep 7, 2009

I've got a textbox with a mousehover event and that event will only happen once and then I have to move my mouse out of the text box before it'll happen again. Is there a way to reset the mousehover event 'trigger' so that it happens as many times as I want?

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Calling Function To Update Value On Trigger Of Event

Nov 8, 2010

I think I have a timing issue. On the trigger of an event I call a function to update a value:

Private Sub t0_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles t0.Click
Input.ppProperty = "blank"
UpdateRecord("Hey", Input.ppProperty)
MsgBox(Input.ppProperty)
End Sub
[Code] .....

Notice the difference, the property does not update until the function is completely finished.
Why?

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VS 2010 : Trigger Event In Usercontrol To Trigger Sub In Main Form?

Feb 18, 2012

I have a main form that has a dynamically generated treeview and also a panel control. Depending on the selection made within the treeview the panel docks 1 of three diffrent usercontrols which are full sub forms(done for ease of modifing design of sub form rather than layering panels on top of panels).Upon button click withing usercontrol i wish to trigger event within main form.For example delete button wich then triggers to remove current selected node from treeview. code for 1 of three diffrent user controls

Dim ctrlQ As New QuoteUC(TrViewQuotation.SelectedNode)
PnlSubFormDock1.Controls.Add(ctrlQ)

Code for delete button for which i need to raise event.

If MsgBox("Are you sure you wish to delete this customer ?", vbYesNo, "Delete Record") = vbYes Then
Deletecustomer(n)
End If

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VS 2010 MouseHover Event For WebBrowser

Oct 11, 2010

I have a SplitContainer control with DataGridView and WebBrowser controls. I'm trying to call focus to the WebBrowser whenever I hover over it so I can use mouse wheel to scroll. I can do that with the DataGridView since it supports MouseHover, but what can I do with the WebBrowser control to achieve the same thing?

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Fire A Mousehover Event When The Mouse Is Over A Drawn Region (Cregion)?

Aug 24, 2009

Private Sub frmGraphTT_MouseHover(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.MouseHover

sender = ChartBox
Dim XYpoint As Point
XYpoint.X = MousePosition.X[code].....

I have a form with a picturebox called Chartbox and I'm trying to fire a mousehover event when the mouse is over a drawn region (Cregion). My code (see above) is not working.

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[Timer] Trigger Event Manually - User Must Wait For A Minute Before The Event Is Triggered

Feb 12, 2010

Eg. ""vb.net" timer event trigger on purpose". This application is meant to run at all times to download a web page every minute. To avoid freezing the UI, I read that the best solution is to move the code from a While/Sleep loop to a Timer that will be triggered every minute. The problem I have, is that the user must wait for a minute before the event is triggered:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Timer1.Interval = 60000
Timer1.Enabled = True

[CODE]...

Is it possible to force this event to occur instead of waiting for it?

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Cacheduration Set, Is It Possible To Have The Function Still Trigger?

May 13, 2010

If I have my cacheduration set to some value for my Web Service, is it possible to force the function to trigger?

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How To Trigger VB Function From OnClick()

May 31, 2012

Am displaying list of available documents in the data grid which are retrieved from the database. Once we click on a specific one then it will retrieve PDF document from the server and display it in the browser.Currently, if I click a document from the list in the datagrid then it will display the PDF file in a new browser. Here is the code for that :

ds.Tables(0).Rows(i).Item("DOC") = "<font color=blue onmouseover=""this.style.cursor='hand';"" title=""Click for PDF"" " + _
"onclick=""location.replace('index.aspx?Name=" & link & "')"">" & docNum & "</font>"

[code].....

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How To Trigger Event From Another Form

Feb 19, 2012

I have this code in my ViewProductsInventory (which is called from my MainForm by ShowDialog):

Private Sub ViewProductsInventory_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.Tb_inventory_datesTableAdapter.Fill(Me.InventorySysDataSet.tb_inventory_dates)
Dim inventory_date As Date
inventory_date = Me.cboInventoryDate.Text
[Code] .....

Upon clicking the editbutton will execute EditForm.ShowDialog()
And in my EditForm the record will be updated, after which will trigger ViewProductsInventory.btnSearch_Click( ViewProductsInventory.btnSearch, EventArgs.Empty)
And then the error "Conversion from string "" to type 'Date' is not valid" occurs.

I tried Msgbox(Me.cboInventoryDate.Text) and returns nothing. I'm assuming that my cboInventoryDate is not being populated at this time therefore when btnSearch_Click is triggered it receives nothing.

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Sent An Event To Trigger The Parent

Jul 31, 2010

I try to sent an event to trigger the parent.Why doesn't the event arrive?Event is public Handler added to parent.

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Trigger An Event From Within Another Class?

Jun 5, 2009

In .NET I have a class called Caption. I have another class called Gauge. Within the Gauge class I have a property defined as a Caption.I am trying to figure out how to do thefollowing:When a certain property is changed in my Caption class how do I get it to execute a subroutine in the Gauge class? I am thinking I have to declare an event and AddHandlers to fire it off, but I can't think of how to accomplish this.

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Trigger An Event With AddHandler?

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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Asp.net - Trigger A Javascript Click Event?

Jan 27, 2010

I have a set of accordian divs (powered by the prototype library) in an asp.net page. I would like to save the state of the accordian, so when a postback event occurs, the same div is open rather than reloading the page entirely and opening the default div.

My plan was to set a page control value with the ID of the open div using the div's toggler click event function, and then fire a click event after postback calling that same div (using the value of the control holding the div ID) as the target. I'm not sure how to fire a javascript click event from vb.net however, and this sure seems like a lame workaround.

1) can you tell me how to fire a javascript click event from the vb.net codebehind page

-or-

2) is there a more elgant way to do this?

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Enter Event To Trigger Text?

Mar 29, 2009

i am trying to allow a user to press enter in a text box to trigger a text change of an object...

1. say u put 2 in a text box called "Number" and

2. when you press enter,

3. another object named "penbutton" to change it's text, that u can see on the picture to "write"..

4. originally the book will have the text "Start" on it

do i changed the "number text box" enter event ? how do i do this? This is what i have so far

Private Sub xNumberTextBox_Enter(ByVal sender As Object,
ByVal e As System.EventArgs) Handles xNumberTextBox.Enter
Me.NumbertextBox.AcceptsReturn = True

[Code].....

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How To Trigger Event For Any / All Forms That Are Loaded

May 3, 2012

I have a project with many forms on it, some of them are dialog forms, some of them are mdi children of my master form. What I need to do is when a user press the ESC button on his keyboard to dispose the form that is working on. either is mdi or dialog form. I know that I can use the event of the form key down and then check the key code if is the esc to dispose the form, but this is not I looking for since I will have to pass from all my forms and create that event. Is there any other way when my master form is load to create my own event for any form load event? And trigger it from there to assigne my custom code for ESC key. So I will not have to pass from all the forms to create that event.

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LostFocus Event Doesn't Trigger

Apr 27, 2012

I have a class library in which i have created a simple new application with a form and added AX webbrowser control on it. In order to apply events on popup of webapplication shown in webbrowser (or to detect whether a pop-up has opend), i am using LostFocus event on webbrowser control, it was working fine till now.But after i reset my IE settings (Internet options->Advance->Reset) the event stopped working. I am using IE9 and the class library is developed in VB.NET (VS 2010).

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Trigger A Label_click Event On The Press Of A Key?

Oct 15, 2011

how can i trigger a label_click event on the press of a key.

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Trigger A Text Changed Event?

Jan 27, 2009

how to trigger a textchanged event. I want to enter data in one text box and have the rest of the data show up after i fill it in. For example I enter someones name and then 3 other text boxes fill in with his height weight and ect after i entered his name.

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Trigger An Event On Specific Time Of Day?

Dec 15, 2011

how trigger an event on specific time of day?

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Trigger Backgroundworker Completed Event?

Jun 17, 2010

I am trying to display the progress bar(marque) in a separate form (progressForm) while i do some calculation in background. I know the typical way of doing it is to include the calculation in background worker and show progressForm in main thread. This approach how ever will lead to lot of synch issues in my application hence I am showing the progressForm using progressForm.ShowDialog() inside the background worker process. But I need to trigger the Completed event with in the application to close the form.

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Trigger Control Event (outside Of The Form)

Apr 12, 2009

i'm trying to trigger control events from outside the form that the control is placed. The idea is test of that control.

How this can be done.

For example I'm trying this

Private Sub SendGenData(ByVal ContName As String)
Dim testControl As Control
For Each testControl In Me.Owner.Controls

[Code]....

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Use An Event To Trigger A Certain Procedure Of A Class

Jun 4, 2009

I read some articles about using events and/or class events, but not a single article realy explainend the true use and benefit of using events in classes, but only how to use them.

As far as I understand, you can use an event to trigger a certain procedure of a class within another class or aspx page, but you can do the same by declaring an object of that class and call de procedure or methods directly. why and when or where we would use an event with addhandler to call a routine from a class and not declare an object of the class and call the desired routine directly.

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Use Multiple Handles To Trigger One Event?

Apr 6, 2011

I am trying to use multiple handles to trigger one event but I need each handle to effect the event differently. I feel like this should be simple. I want to use a Select Case to select the alteration but I can not figure out how to identify the handle used and convey that to the Select Case.

Private Sub Event(ByVal sender As System.Object, ByVal e As _
System.EventArgs) Handles Button1.Click, Button2.Click
Select Case handles[code].....

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Way To Trigger An On-load Event On One Form From Another?

Mar 8, 2012

I have one form (FormA) that fills a combobox with data when the on-load event is trigged.In that combobox, I can select "New value" which opens another form (FormB) on top of FormA.On FormB I add the new data and saves them to a Database.Everything OK till here.I then close FormB.... and return my attention back to FormA.Now I would like to reload data into the combobox, but everyway I have tried, it will not work.

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[Timer] Trigger Event Manually?

Feb 12, 2010

This application is meant to run at all times to download a web page every minute.To avoid freezing the UI, I read that the best solution is to move the code from a While/Sleep loop to a Timer that will be triggered every minute.The problem I have, is that the user must wait for a minute before the event is triggered:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Timer1.Interval = 60000
Timer1.Enabled = True

[code]....

Is it possible to force this event to occur instead of waiting for it?

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Trigger A Function In Form-application From A Service

Feb 27, 2012

For a small project I need the possibility to "trigger" a function in a Window-form-application from a Service. So there are 2 program's. One is the visible Form application with textboxes and buttons and so on... The other is a sort of service program that runs on the Windows Service account.

Actually the second program is a command-line tool that gets fired by a PHP script from the Apache server. Because the command-line tool runs in another "environment" then the Windows-form-App, it is NOT possible to communicate (trigger) with both apps.

I know I have to use IPC (InterProcess Communication) and I have download the dozens of sample apps, but I still can't get it to work.

PLEASE can someone give me some sample code, or perhaps sample program(s) to help me out?

I think it's really easy to build what I want, but for me it's a no-go :-(

So for example it has to work like this:

PHP script (running at Apache server) runs a "console/service" app (already working) which "triggers" (via IPC) a already running Windows-Form-app (also already working app) that for example shows a MsgBox with the text in it that is sended by the "console/service" app.

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Assign An Event To Trigger When Right Click On A Button?

Aug 14, 2009

I want to assign an event to trigger when I right click on a button. I notice one of the events listed as available is the MouseClick. Also RightMouse button is listed as an e.Buttons value. However when I right click the button the event dosnt trigger.

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Coding For Comport Signal To Trigger Event?

Oct 23, 2009

Im connecting a infrared transmitter by serial port, Rs232 to my pc. Anyone know the coding for the comport to detect the signal and auto trigger a sms event(by gsm modem) ??????

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Enter Event To Trigger Text Display?

Mar 29, 2009

1. say u put 2 in a text box called "Number" and2. when you press enter, 3. another object named "penbutton" to change it's text, that u can see on the picture to "write"..4. originally the book will have the text "Start" on itdo i changed the "number text box" enter event ? how do i do this?This is what i have so far

Private Sub xNumberTextBox_Enter(ByVal sender As Object,
ByVal e As System.EventArgs) Handles xNumberTextBox.Enter
Me.NumbertextBox.AcceptsReturn = True

[code].....

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Get A Javascript Call To Asynchronously Trigger An ASP.NET Event?

Feb 22, 2012

I have a flash video player embedded in a page which has javascript calls for it's controls, specifically calling playStarted() when the play button is pressed. I want to capture this event asynchronously to record when people are actually playing the video versus visiting the page, but I'm not really sure how to do this.

I was thinking the "hack" of a way would be to create a javascript function called playStarted() that would post the video ID to a separate ASP.NET page that would then record it to SQL (where I store my data on page visits and where I want to store my data on video plays.)

But ideally there is a better way to do this where I can register the javascript to the script manager so it can trigger a public sub asynchronously when it's called

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Services Section In Windows - Get It To Trigger An Event?

Jul 21, 2009

I have created a service which correctly starts in the services section in windows. Now I am trying to get it to trigger an event.I put a message box in the timer section just to experiment with getting it to pop up and it does work when I run it within vb but when I deploy it as a service it no longer pops up.

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Trigger An Event From A PictureBox That Is Created During Runtime?

Apr 13, 2009

I am trying to figure out out ttrigger a click event from a Picturebox object that is created during runtime? application that I am developing using Visual Studio 2008 during runtime a user selects a shape from a Panel3 on the right side of the form and then clicks on a location inside Panel1 where that shape is copied over. Almost like a Visio application but without the drag and drop.The name of my new shape via a is call "C_Object" I would like the user to be able to select this new shape and a click event to be raised but because this PictureBox object was created during runtime I am not seeing the event.

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Trigger Asp:HiddenField OnValueChanged Event Using JQuery?

Nov 30, 2011

I have this asp:hiddenField control:

<asp:HiddenField ID="AuxHiddenField" runat="server"/>

I would like to trigger its (server side) value changed event using Jquery[code]...

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Reset Function For Countdown Timer?

Feb 13, 2012

i have a coundown time in which will trigger once i run my main screen in my "MAIN SCREENFORM" .......  I create a "RESET button" on other form call "FORM2" , now the problems is how should i write the code when i click reset button it will reset the count value my lblcountime.text and start re-countdown again from the start?

Public Sub MainScreen_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
timeleft = 120
lblCountTime.Text = "120 seconds"[code].......

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Component To Trigger An Event When A Sound Is Detected Above A Threshold

Feb 17, 2009

I'm looking for an easy and free way to detect my dog's bark using a microphone attached to the computer. Basically, I just need a component to trigger an event when a sound is detected above a threshold...no fancy processing required. I've found some sound components, but they all seem too complicated for this application.

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DataGridView - Trigger Event When Type Something Wrong In Cell

Jun 1, 2011

I want to have one event triggered when I type something wrong in the cell in the specific column in the datagridview. What event should be? Or cell leave?

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Trigger Event Whenever Seconds On Stopwatch Change That Means Every Second?

Mar 6, 2009

Is it possible to trigger event whenever seconds on stopwatch change (that means every second, but it has to be synchronized with seconds)?

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Asp.net - Trigger The Event In DataGrid When Changing Occur In TemplateColumn (asp:radiobuttonlist)

Apr 20, 2012

To get the row index of DataGrid when change(asp:radiobuttonlist) occur in row of the TemplateColumn

<asp:DataGrid ID="dgTier2" runat="server" AutoGenerateColumns="False" Width="578px"
Height="83px" OnItemDataBound="dgTier2_ItemDataBound">
<asp:BoundColumn DataField="TypeID" HeaderText="TypeID">
</asp:BoundColumn>

[code]....

After changing the rediobutton selection to get the Rowindex of the changed row.if at all change happens in many rows i need make the collection of the Rowindexs.

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Handling Application StartupNextInstance Seems To Trigger Internet Access Event?

Feb 7, 2010

I successfully coded MyApplication_Startup and MyApplication_StartupNextInstance to give my single-instance application access to the command line.  It works fine.  if the application is not running and the user double clicks on a filetype associated with my application, my application starts up and reads in the file that was double clicked on.   That's fine.

However, when the user double clicks on another file (same associated type) when the application is already running, I then (and only then) get a warning (from McAfee in my case) that my application is requesting access to the internet.  I simply click OK to allow access, McAfee goes away, focus shifts to the original instance, and that instance successfully reads in the second file. 

If the user then double clicks on a third file when the application is already running, focus shifts to the running application, it loads the third file, and the internet access warning DOES NOT appear.  Same with all subsequent cases.

Any ideas about why the sudden internet access warning is occuring?  In all the startup and load events, I do not do any internet related things.  Much later, the program will send an email, but that code is far removed from Startup and Load things.My only idea is that perhaps because I have "awakened" the normally hidden ApplcationEvents.vb file (by putting some code in there), maybe I have triggered some sort of handling of the MyApplication_NetworkAvaialabilityChanged event, even though I make no reference to this event anywhere.

Before I added the command line handling stuff, I noticed that the internet access warning would occur only once for each new build.  Susequent execution of the same build would not trigger an internet access warning.  So now it is as if the handling of the StartupNextInstance event is simulating starting up a new build for the first time.  Weird.

One more thing.  I am not deploying this over a network.  I am making a simple .exe by selecting Build from the MVS 2008 menu, then running the .exe by double clicking on it from Windows Explorer.  I am using Visual Basic 2008 Express on Windows XP. 

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MessageBox.show - Trigger An Event (clear Some Text Boxes)

Feb 27, 2011

I need to trigger an event (clear some text boxes) when I click on the "ok" button in the MessageBox. Below is the event triggered messagebox code. A box pops up with the included text and an "OK" button. The program appears at this point to stop and wait for the click on "OK" MessageBox.Show("Check -Sender Information-data")

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Mouse Click To Trigger An Event In Another Program Running Simultaneously

Mar 6, 2010

I'm attempting to convert VB 5.0 source code to VB 2008. The converted code will then be slightly altered to facilitate its incorporation into a larger project that I'm developing in VB 2008. After using the conversion wizard (which is actually written for VB 6.0), I have 49 unresolved issues -- less than I expected. Much has changed since the days of my prowess as a programmer (Fortran in the 70's), so working my way through even as few as 49 issues will be a challenge, and will (no doubt) take me a while.

The UI for the VB 5.0 code I'm converting is a "virtual remote," with control buttons that (when clicked) trigger communication to a USB-connected device. With assistance, I've been able to develop my own "virtual remote," contained within my VB 2008 project. Eventually, I will "substitute" mine for the original. For now, though, I'm wanting to use MY "virtual remote" to trigger the original.

I have the executable for the VB 5.0 program, and can run it simultaneously with my "under-development" VB 2008 code. Problem is: I don't know how to cause a "click" on MY virtual remote to trigger a click on the original virtual remote (which is being "monitored" by the other program).

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Two Textboxes - Scroll Event To Trigger Change Of Position Of Scrollbar

Mar 23, 2012

I am currently working on a VB.Net program where there are two parallel multiline text boxes like this.

----- -----
| | | |
| | | |
----- -----

I would like that when one text box is scrolled, the other is scrolled as well. I was wondering if there was a Scroll event that could trigger the change the position of the scroll bar of the two text boxes.

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C# - WINFORM Or WPF: Trigger Custom Event Inside The Constructor Of The Class That Emits It?

Nov 17, 2009

I have a userControl11 (either in winform or wpf) which has a ValueChanged custom event. If I put it in client form and in form_load set its value to 100, it will trigger the ValueChanged event. But if I set this value inside the constructor of UserControl1 the custom event won't trigger. How can I force it to do so ?whatever the technical reason, functionally it does make sense. If the object is initializing its value from some sources unknown to the client form and the client form has a textbox bound to this usercontrol value, it is sure convenient that it could refresh its textbox at any time including when the form loads just using one single event handler. Without this the client form has to create another initializer for this bound textbox at form load.

Below the source code of my trials in winform:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;

[code]....

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Trigger Datepicker.valuechanged Event When Browsing Month In Date Picker?

Sep 13, 2011

I add a date picker as follows

Friend WithEvents dtpReportDate As System.Windows.Forms.DateTimePicker

The default date picker has left arrow and right arrow which allow you to browser previous month and following month. I add a handler to date picker valuechanged event:

AddHandler dtpReportDate.ValueChanged, AddressOf dtpReportDateChanged

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

'do something here

End Sub

The problem is that whenever I click left arrow or right arrow to change month, the dptReportDateChanged is triggered. I do not want this happens. All I want is that after I find a month, I double click date to trigger the event.

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Reset Checkbox Checkstate Without Triggering Checkchanged Event?

Jul 6, 2009

I'm trying to reset a form after a game has been played.  I used checkboxes to indicate when the user picked a particular line item to update and then flagged the checkbox as checked and disabled.Once all the checkboxes have been checked, the game is over and I want to show a dialog (msgbox) that will allow the user to start a new game or exit the app. To reset the form, I was changing all the checkstates back to unchecked (along with resetting other variables), but the checkchanged events are being triggered and I end up in a loop.Is there a way to change the checkstate without triggering the event?[code]....

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