VS 2010 - Closing Dialogue Using Tick Event
Sep 22, 2011
I am working on a football simulation. I'm writing the code when a quarter or half ends. If any of you ever played Madden Football you know that when the time reaches zero the play calling screen disappears. This is exactly what I am trying to do. The play calling screen in my case is a dialog controlled by the main game screen (the main form controlling most of the game). I use the .ShowDialog event to display it. What I want to do is close this dialog on a tick event.
I'm not sure how to access this dialog if it was created as a local variable. I assume it's like finding any other control that was dynamically generated at run-time but I can't wrap my head around the proper syntax. Once I get the dialog in the tick event I want the dialog to close and return all control to the main game screen. I've never tried to close a dialog without the user clicking a button on the dialog itself. This is different because the parent control is closing the dialog with its own event (Tick).
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Feb 12, 2011
I'm new with VB and a time program I'm trying to complete is incorporating a tick event. I have the code I need to use, and have the timer placed within the VB Designer but when I start the debugging process, 12:00:00 pops up in the text box. I would like to have it start incrementing after I set the hour, minute and second and initiate the Set Time click event. The code I have for the timer is
[Code]...
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Feb 11, 2012
i want to execute different subs at each tick , is that possible ?
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Feb 10, 2011
I used a timer in my user control now when Timer_Tick event is fired I want to raise an event like Ticked. I created:
public delegate sub myDel()
public event myevnt as myDel
in Timer.Tick
I used raiseEvent myevnt. I also raised the event from a button click. This event is handled in a windows form where the control is used, My problem is event is firing when the button is clicked but not firing from the timer.tick. Is there any problem from Timer.Tick.
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Jul 11, 2011
I am attempting to create a timer that will activate a tick event every 1 second until stopped by an "If" statement. The tick event should then drive a clock measuring time in units of hours, minutes and seconds. The if statements handle the time readout, timer stop and activate another form after a set number of hours have elapsed. I have tried several different methods and while my application is running, it does not add increments to the integers representing the time units, refresh the displayed time units, or perform any of the timer related functions. I assume the cause is that I just don't know as much as I think I do (which isn't much)
Here is the applicable code:
Imports Microsoft.VisualBasic.ApplicationServices
Imports System.IO
Public Class SessionManager
[Code].....
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Apr 8, 2010
I an trying to modify a queue within the tick event of a timer. Is this even possible? A sample follows:
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim NewQueue As New Queue(Of String)
NewQueue.Enqueue("alpha")
NewQueue.Enqueue("beta")
[code]....
create a looping display (first "alpha", then "beta", etc.). What's missing? Also, why can I declare the Queue outside of a sub, but I can't fill it there as well (enqueue)?
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Oct 21, 2009
I'm trying to make my application react the way I want if the internet connection goes down, because the application need a permanent internet connection to work properly. This also includes if the server my program is trying to connect to goes down/stops or something.
What I want is that if a exception occures when trying to connect to the server, i calls a sub wich stops all timers, disables some buttons and comboboxes. At the same time it starts a new timer named "retrytimer". The retrytimer checks every fifth second if the connection is re-established. If it is, it activates all the controls and disables itself.
For some reason, the retrytimer tick-event never occures. I've tried inserted a breakpoint on the first line of the event-sub, but it never hits. If I check the enabled-property of the timer, it is set to "true". Why does this happen?The timer is made in the design window, and it's default enabled-property is set to false.Here is my sub wich deactivates some controls and starts the timer:
vb.net
Private Sub connectionLost(ByRef errnr As Integer) connected = False If starttimer.Enabled Then starttimer.Enabled = False If resulttimer.Enabled Then resulttimer.Enabled = False If radioposttimer.Enabled Then radioposttimer.Enabled = False If runningtimer.Enabled Then runningtimer.Enabled = False
[Code]...
But here is the funny part! If I start the application without a internet connection, everything works the way I want. But if I disable the internet connection in the middle of my program, it acts as described. The lasts messagebox in my connectionLost-sub are shown, and the timer is set to enabled = true.
Does anyone have a clue? EDIT: I think I've narrowed down the problem quite a bit.It seems like the timer won't work correctly if the connectionLost-sub is called from within a BackgroundWorker. If it is called from something else than inside a BackgroundWorker, it seems to work the way I want.
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Jun 9, 2012
it is possible to force the timer to do the code within the tick event before the delay.In other words..Usually the timer when starts it delays 'x' seconds according to the interval settings then process some codes then delay again 'x' seconds.What I want here is to do the code then delays 'x' seconds.
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Jun 21, 2009
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I have a quick question regarding the serial port and timer tick event. Basically i have a micro processor connected to the PC via the serial port. With a baurd rate of 38400 set.When the PC sends the micro ":K + VBCRLF" the micro response with a string of information (ASCII encoded) and delimited with a "," and at the end of the transmission a cartridge return line feed is added.Example of sent string:
"12,1134,123,545,76,6868,34,232,1,2,3,6,7,8" These numbers are then split using the VB mystring.split(",") function into an array of strings, then the numbers are converted using ctype. After which my UI is then updated.I have Witten the code in a tick timer event using a timer count of 300ms. Although the program runs and the UI is updated i end it with lots of exception errors. I think allot of this is down to the serial port either timing out or not reading complete string.Or possibly the timer has not executed all the code before another tick event happens Even after adding a few try catch statements i am still having problems. Can anybody suggest a better way of doing it?I was thinking of using a do while loop and at the end a sleep function instead of the timer tick event.I need the speed as i am trying to read and display live data.
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Nov 27, 2011
I am working on a project, but the latest enhancement to it has me stumped currently. Here is what the class enhancement asks for:
Modify class time to provide a Tick method that increments the time by one second. Also provide methods IncrementMinute to increment the minute and methods IncrementHour to increment the Hour. The Trick method, the IncrementMinute method and the IncrementHour method should be called when you click the Add 1 to Second button, the Add 1 to Minute button and the Add 1 to Hour button, respectively. Be sure to test the following cases:
A) Incrementing into the next minute.
B) Incrementing into the next hour.
C) Incrementing into the next day (that is, 11:59:59 PM to 12:00:00 AM).
Here is my GUI:
The reason I am confused is currently my program already increments the seconds, minutes, and hours correctly (as shown in pic) for Cases A, B, C. But, I haven't added a Tick method which is what the enhancement to the class Time calls for. Here are the 2 classes I have so far:Time Class that the Tick method is supposed to be added to
Public Class Time
' declare Integer instance variables for the hour, minute and second
Private hourValue As Integer ' 0 - 23
Private minuteValue As Integer ' 0 - 59
[code]....
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Jul 9, 2009
I have a timer on a page in ASP.NET.
After a certain period of time elapses, I want to disable the timer.
I want to put a static variable in the timers tick event that will track how many seconds have elapsed.
My question is, will this work?
If user X and Y are viewing the page will they both have separate local static variables?
What is the best method of shutting down an ASP.NET timer after a certain elapsed time?
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Jan 11, 2011
I want to create an array of timer in vb.net. My problem is that how will i raise the tick event for a particular timer, say mytimer(x).tick and inside the tick event there is also a button, say mybutton(x) which changes location every interval. for example:
public class blah
dim mybuttons(20) as button
dim mytimer(20) as timer
private sub form_load(....) handles me.load
for x as integer = 0 to 20
[Code]...
i dont know what to do next, all i want is to pass the button mybuttons(x) to mytimer(x) tick event, in which their index number are the same. i want to create one timer per button. how to do that? please help me and post example codes. i've researched the net but i cant understand passing variables, addhandlers, etc. i'm just new to programming object oriented.
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Mar 4, 2010
I'm trying to save some layouts from DevExpress Grid Controls so that users can change the layouts and reload them in at a later use of the control.
My question is this for speed issues I am loading the control via a user control inside of a form. Now my problem is I am creating the control by adding an instance of the control to a panel control inside of a tabbed group control when the tab is made visible and then clearing the control when the control is hidden.
If ClaimsGridPanelControl.Visible = True Then
ClaimsGridPanelControl.Controls.Add(New RXClaimsGridControl(ClaimsBindingSource))
Else
ClaimsGridPanelControl.Controls.Clear()
End If
So inside of the RxClaimGridControl I need to call a SaveLayout method when I am clearing the control. But there is no event, at least that I can find, that triggers when a usercontrol is removed/closed/hidden.
My thoughts for handling the .Clear() would be to raise an event in the parent control and then to handle that event inside of the user control.
Is there some event that I am missing in regards to the removal/closing/hiding of a user control, or is there a better way to do this.
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Jun 1, 2011
I have this code that's suppose to override the form closing event, It fires off sucessfully however doesn't prevent the form from closing.
Private Sub Form_Close(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
Me.Hide()
e.Cancel = True
End Sub
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Aug 1, 2011
I have a multi-form application that closes one form, using form.close() and shows another, using form.showdialog().In one of this forms, I have a 3 tabs, and I'm looking for to printing them one by one.I can print them easily but when the print_page event ends, the form that just printed closes. It also happens when I just hit Cancel on the printdialog.
Private Sub bttnImprimir1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bttnImprimir1.Click
Dim pdialog As PrintDialog = New PrintDialog
pdialog.Document = PrintDocument 'PrintDialog associate with PrintDocument.[code].....
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Mar 21, 2011
Going around in circles here. I have an Exit button (Barbuttonitem6) on my form and would like the FormClosing event to handle this. The code works fine for the FormClosing event but when i try to call the Formclosing event from Barbuttonitem6, it does not work (The form does not close if i choose Yes to save or No)
Public Sub BarButtonItem6_ItemClick(ByVal sender As System.Object, ByVal e As DevExpress.XtraBars.ItemClickEventArgs) Handles BarButtonItem6.ItemClick
[code].....
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Dec 12, 2009
okay i have this code
Private Sub Form_OpenGradeBook_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code].....
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Mar 24, 2011
Based on our tests primarily done in VB.NET in VS2010 it seems that when you close a WinForm the "RowValidating" event of the DataGridView on that form behaves differently depending on whether the form is MODAL or NON-MODAL. What we did was open the form (MODAL and NONMODAL) and changed a value of a cell and then immediately clicked the "X" to close the form. It looks like the "RowValidating" event DOESN'T fire if the grid is on a MODAL form but it DOES fire when the grid is on a NON-MODAL form. We can't figure out why that is... Is this a known bug in .NET?
[Code]...
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Nov 1, 2010
add save and save as dialogue box options in vb 2010. I've already managed to do loading but i can't figure out how to save.
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Oct 5, 2011
So a timer's maximum interval is 1 which is a thousand ticks a second. A Stopwatch's frequency is 2238906 ticks a second on my pc...
I am wondering if there is a reliable way to trigger an event for each tick of the stopwatch without missing any ticks...
If I can somehow get a Tick event for the stopwatch, I believe I can increase the resolution of my input recorder....
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May 3, 2010
Form1 is a mdi container. It has a bunch of forms that can load inside of it as mdi children. If I close each open form inside the form1, and then click the red X at the top right, application exits fine.If I click the red X without closing the forms inside I get: An unhandled exception of type 'System.CannotUnloadAppDomainException' occurred in mscorlib.dll
Additional information: Error while unloading appdomain. (Exception from HRESULT: 0x80131015) However I can break from it. How do I get the application to not show that error? What must I do to fix those inside forms or close when the red x is clicked?
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Jun 4, 2010
Dim frm As Form
For Each frm In Forms
Set frm = Nothing
Next frm
The above code is what I used in VB6 to close all forms associated with my programs before my program closed. I have been searching for information on how to make sure all forms are closed when closing a VB2008 program.
I have seen info on using the Project Property Shutdown mode When startup form closes and I currently have this set.
Is this all that is really necessary? Will the garbage disposal close everything else to free up RAM?
Also, if I have several forms open and want to close all from the main form without closing each one individually, what is the best approach? Is there a collection like in VB6, go through the collection, compare it to the name of the main form and close it if it is not the main form?
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Oct 24, 2010
I've made an app with vs 2010, which holds a mainform. On it is a menutoolstrip with button, when I click on that button a second form is opened on a second monitor and the button is being checked (different color).
When I click the button again, it is unchecked, but the form on the second monitor is still open, while it should be closed.
[Code]...
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Jan 5, 2012
The following code is a what I have done in order to show a MsgBox when an exit ITEM on a MenuStrip is clicked then it will give two different choices Yes and No. If Yes then it will close the application but if No then it should stay on the same page.
Private Sub ExitToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitMenu.Click
MsgBox("Are you sure you want to exit the program?", MsgBoxStyle.YesNo)
If MsgBoxResult.Yes = True Then
Application.Exit()
End If
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Jun 11, 2012
How can I ensure an application is fully closed when the user selects the close window X at the top of the form. It appears to just close the current form by default which is leaving the program still loaded in memory when the user thinks they have closed it. I have tried capturing the close and running application.exit but this closes the whole application even when I only want the current form closed.
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Feb 6, 2011
I want a button that when you click at it, It searchs for a line that has brackets that are'nt closed, and then ighlights the error.Like, I have; So the (Dog Which should be for example (Dog). Then, I want it to highlight it so the user can see his error, and show a notifyicon on it.
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Feb 28, 2011
I have an app that is on a network drive. Around 100 people will be using the app.
Right now, I have 2 people testing it. They found a couple of bugs, I fixed them, and made the changes.
However, before I could update the app, they had to close it because I can't delete a file that is in use.
how I might prompt the user that the app will be closing in "x" amount of seconds for updating?
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Feb 12, 2012
I have noticed when I close a form I have invoked using form.showdialog the form does not appear to be totally removed. If I load a value into a textbox and press my cancel button [Me.close() Return] and then reload the form the value in the textbox is still present. Also bindings are failing because they are already set up
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Jun 11, 2011
I have a databound datagridview. When I click the close form it goes into an endless loop. The dataerror event is repeatedly called and the context field states that there is a formatting error. Never had this problem in 2008 ?
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May 23, 2012
Okay so my program opens excel, reads a few cells, and closes excel. But, it does not fully close excel and after multiple runs, I have multiple EXCEL.EXE *32 in my process list. It also asks for a save when it's closing when there are no changes being made, is there any way to avoid this? And how do you get Excel to fully close?
[code...]
The program closes, without asking for a save, gets me the data I need, but remains in the process list.
Using this for my Imports
[code...]
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