Control The Timer Function In Window Form?
Aug 11, 2009
how to use the timer to control the blinking? Cuz i tried to stop one timer, it did stop this timer but if i didnt stop the timer 1, both timer 1 and timer 2 will begin although the data is in different entity. By right if the alarm comes in from block 2, only block 2 button will blink, like wise if the alarm comes in from block 1, only block 1 button will blink
the below is my code:
Imports System.Data.SqlClient
Imports System.data
Imports System.Drawing.Image
[Code]....
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Mar 24, 2009
I have a timer in vb.net and it's interval is 1000ms ,. i have placed in it's timer_tick event a code that will print screen the screen and save it to a database.The problem is when i click outside of the form, or loosing the focus of the mouse to the form containing that timer/printscreen, the timer stops. As a result the printscreen also stops.here are it's properties:
generate member = true
interval = 1000
modifiers = friend
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Apr 15, 2010
I have successfully set up a timer in visual basic, see the code below. My timer uses case statements and at specific case/time it calls a function, 'ShuttleA'. 'ShuttleA' function, is a function that 'getskeystate', which inturn from the user interface tallies a response in a text box. My problem is that the program runs fine when calling the function at eg; at 10 seconds, case 10. But I want to be able to call the function e.g., at 8 seconds to 11 seconds. Or create a tolerance of e.g., 1 second either side of e.g., 10.
PrivateSub Timer1_Tick(ByVal sender As System.Object,ByVal eAs System.EventArgs)Handles Timer1.Tick
Dim secondsAsInteger
seconds += 1
Label1.Text = seconds
SelectCase seconds
[Code] .....
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Feb 24, 2011
In a vb 2010 project, I have 2 win forms: Form1 and Form2.
In the Form1 class there is a server-based timer: when the "elapsed event" fires, then I update the text of a Label1 on the Form2. A very simple code:
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Sep 7, 2011
I've created a form that has a timer control. When this form loads it counts down before running a procedure. Simple.
Now I want to subclass this form in a new VB.NET project to so that another form inherits this form (an it's timer functionality) and runs a different procedure on this new form.My problem is that when I create the form in my new project the timer from the parent form seems to be running and when it's time is up it runs and code and crashes the VS environment.
I've searched high and low but have only found references to making sure the timer is disabled at design time. I've done this on the parent form but in this parent form's Load event the timer is enabled.... the purpose of the form. So when the child form loads it is enabling the timer. How can I work around this? Can I enable the timer from the child form? Timer is not visible when the child form loads so how do I manipulate it?
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Dec 17, 2009
i am try to create a game when i move a picture box around my form with a timer control i almost done every thing but the problem is avoiding the flikkering effect ?is there any way to avoid it?
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May 21, 2009
I trying to fade-in the application startup form using the forms opacity and a timer control.I dont know if I am using the right approch to achieve this so suggestions for alternatativ approches are welcome.I have a form with a few randomly select controls on it, one of which is a textbox.When I run the code, the form and all its controls reflect the changes to the form opacity property set through the timer_tick event except the textbox.The textbox remains clear all the time and I would like to know: Why?[code].....
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Aug 20, 2009
Hi. what is the difference of sleep function and pause function (using timer) between a loop.
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Jun 14, 2009
I got a webbrowser control on 1st form (Form1.vb) and a New Window button...When i press new window button, SAME window must open (i mean with same content)heres what i tryed:
rivate Sub newWind_click (ByVal..............Form2.show
I just copied form1. (Form2 = Form1 copy)
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Nov 6, 2009
VB6 create object of timer instead of timer control
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Dec 13, 2011
I am creating a window that is a generic keypad for editing numerical values on a touchscreen. I would like to press an 'edit' button to create a copy of the keypad window/bring up a reusable version of the same window (I don't care), but pass in parameters: the old value I'm manipulating, and a title to be displayed above the number pad. I would like the user to be able to type in the new value, then press the 'done' key to submit this value and have it sent back to the main application window into my custom control that contains a text box.(I have the number pad's layout sorted out already; I'm already using a variation on it to set a global password 'access level'. It's getting the information in and out that has me scratching my head.) [code]
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Nov 23, 2010
I am writting a program that aims at filling up bookmarks of a template with data retrieved from a sql server db. The form opens a Word document but I can't control the position and dimensions of the word document. It seems that I can't manage to overwrite MS Word default settings for position and dimensions. I want to be able to display the word document close to the form.Here is the code that I have tried and doesn't work:
Dim
wawidth
As
Integer
[code]....
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Mar 10, 2006
I am using an embedded webbrowser control to access a third-party website, populate the username and password boxes on their front page, and login. The problem I have is that the resulting window that the site returns to me is in the form of a new window. What I want to do is capture this window and all it's session/cookie data in to the original webbrowser control, as even if I direct the original window to the same resulting url, some kind of authentication data is missing and the site tells me I have logged out, even though the popup window works fine. I need that page in the original control so that I can continue to access it programmatically, and I don't really want to get in to the complication of accessing the new window, as I expect I'll have to delve in to the api or something.
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Oct 20, 2009
I have A Wpf window with a Public Sub function(Window1). I need to execute that function from another window. Something like this:
Private Sub Window2_Loaded(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles Window1.Loaded
Dim Window1 As New Window 1
[Code]....
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Mar 7, 2012
I have a single form application with two modules. The first module holds all the Sub procedures that provide the filtering functionality for 3 DataGridViews on the form. The second module holds the Predicate of T functions that actually filter the List(Of T) objects that are bound to the DataGridView controls.
I split them into modules since I was starting to have difficulty organising and finding the procedures and functions if I held them all in the form code.In some cases I can happily both Get and Set form control properties from within the modules. In one case I simply can't, I suspect I may yet find some more instances as I test further. The offending line is in one of the Predicate of T functions:
If tWord.Length <= Investigator.NumericUpDown.Value Then Investigator is the Class name of the form.
I suspect my problem might be that the Predicate of T functions (which are collated in a module) are called from the DoWork procedure of a BackgroundWorker that is a component of the form - hence the DoWork procedure is in the form code, but I'm not certain. The same code worked fine when everything was all in the form code. The error reported when adding a watch to the Value property in the module function is "
'Value' is not declared. It may be inaccessible due to its protection level ". I have tried the following to no avail:
1) Setting the NumerciUpDown modifier to Public
2) Adding a Public ReadOnly Property to the form class that simply returns the Value propety of the NumericUpDown
3) Adding Imports Root Namespace.Investigator to the module
I am considering adding a Public Shared variable to hold the curent value of the NumericUpDown and referencing that from the Predicate of T function.I realise, and have read many times, that accessing form control properties from module functions is generally not seen as a smart thing to be doing, but since I am not trying to chnage anything, I simply want to know what the current value is I decided that I wasn't too worried.
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Feb 28, 2011
Is it possible to set a timer for window service in app.config rather than giving a code behind code?
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Jan 4, 2011
Using Visual Studio 2010 / VB.net Windows forms application I have a weird situation occuring. I have a rather simple windows form program I have written where a second form is opened by pressing a button on the "main" form. It is opened simply by the following on the click event:
[Code]...
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Mar 20, 2010
I am trying to find the handle of the child window for the Yes button in the User Account Control window so i can click it. This window has a structure with a few child windows with the same name.
Dim hwnd As IntPtr = FindWindow(Nothing, "User Account Control")
Dim hwnd2 As IntPtr = FindWindowEx(hwnd, 0, "DirectUIHWND", vbNullString)
Dim hwnd3 As IntPtr = FindWindowEx(hwnd2, 0, "CtrlNotifySink", vbNullString)
Dim hwnd4 As IntPtr = FindWindowEx(hwnd3, 0, "Button", "&Yes")
There are multiple CtrNotifySink with its own Button child window or other child windows. How do i search thru the different CtrNotifySink window to find the one that contain the Yes button so i can send a click to it? I do need to find it before i can send a click, right? because i try just sending it to the main window with sendmessage and nothing happen.I even try sending it directly to the handle found by spy++ of the yes button with bm click but nothing happen?
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May 7, 2008
I have a Windows Service -which contains a System.Timer -which get enabled and started in the OnStart event handler.In the Timer Elapsed event -I make a call to a routine within another DLL. The problem is that the Timer Elapsed event never fires... I have a test application -which works fine. This is written in VB.Net 2008 framework 3.5
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Jun 21, 2012
In my project I've got a MainWindow that opens up a second Window. Inside the second Window there is a Frame and I start a navigationservice inside the Frame. Also in the second Window I've got a KeyDown method that calls Me.Close when the user presses the Escape key. Anyway, when the second Window closes a System.Windows.Threading.DispatcherTimer() inside one of the pages in the navigation service doesn't end. Any ideas on how can I close the second Window and terminate the DispatcherTimer inside the navigationservice?
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Mar 16, 2009
I have used timers in .Net for a long time now an never had this problem.Start timer to fire every 10 seconds that reads an object and updates the UI using a delegate.This works great until the form is minimized several times, then the timer thread seems to vanish.Anyone come across this before?
Obviously I can roll my own using a thread directly and sleeping it, however this seems like reinventing the wheel when a threading timer class exists already.
Code: Private Sub m_Tmr_Tick(ByVal state As Object)
[code].....
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Mar 8, 2012
I am facing another issue. I want to associate a timer to my function. Actually what i am doing is that i am tryin to store certain values in a database. A function is such that it calculates 5 values and stores them in a database. While storing them in the database it displays them in a textbox on the form. Now i want to display them one by one which it does. But it does it so fast that i can only see the last value that it enters in the database inside the textbox.
Can i make it show all the values slowly one by one.
Private Sub dbInsert(ByVal strfile As String, ByVal hashoffile As String, ByVal p As Integer)
'parameter to the above function (ByVal strfile As String)
[Code]....
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Apr 22, 2009
I have placed a timer on the main menu form I set the timer to 60 seconds I want the timer to check for user inactivity if no key pressed at 60 seconds I want the application to navigate to the login page. I have a rough idea how to do this but I don't know which functions to use this is on a mobile application in visual studio 2008.
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Feb 14, 2012
I am making a game that involves using the arrow keys I have been using the keydown function for the form but when i use it now all the timers seem to stop. this was my previous code for the arrow keys using the keydown function:
If e.keydata = keys.up Then
If pbxship.Top <= 77 Then
pbxship.Top += 10
Else
[Code]...
but this does not do anything like the keys are not pressed, does anyone know how to make it work or a different way to do this in a timer
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Nov 7, 2010
When using the WebBrowser control, is it possible to cause popup windows to appear within the WebBrowser control itself instead of a new window?
how to get the popup to appear in the same browser window.
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May 29, 2010
What line of code would I need to use the timer function just as a delay, so like as lines are being executed, once it gets to this timer it waits for say 1500 milliseconds before execution is continued.
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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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Feb 9, 2010
I can't seem to get one of my functions to work based on a timer. Every tick of the timer, I'm trying to call a function which will start periodically taking screen shots until the 'Finish' button is pressed. However, I've run into numerous errors and wondered if anyone could give me any insight or suggestions. Here is what I have so far.
[Code]...
One of the errors included "Public Sub RunAC() does not have the same signature as delegate". This might be really obvious, I'm a recent Computer Programmer / Analyst graduate with intermediate VB.net experience.
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Mar 8, 2012
I want to associate a timer to my function. Actually what i am doing is that i am tryin to store certain values in a database. A function is such that it calculates 5 values and stores them in a database. While storing them in the database it displays them in a textbox on the form. Now i want to display them one by one which it does. But it does it so fast that i can only see the last value that it enters in the database inside the textbox. Can i make it show all the values slowly one by one.
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Jun 9, 2010
I've been trying to get this part of my code to work but it hasn't done anything. I'm trying to create a function that sends an email everyday at a specific time. I thought threading.timer would work but i haven't figured it out yet. I don't get errors when its executed but it also does nothing. If someone could tell me whats going on with this piece of code,
[Code]...
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