Is it possible to use a timer to show text in a label for like 3 sec ?
F.E. When you saved something and it was successful, you'd get a text message "success!" for 3 second and then return to the original page.
Anyone knows how to do this using a label or a messagebox ?
Yes, it s possible...
You may start the timer at where you set the text of the label to "succcess" and set it to tick after 3 seconds and then at the timer_ticks event, you may redirect to the page you want.
Edit: the code to start the timer - This is a simple windows form having one button and one label
public partial class Form1 : Form
{
//Create the timer
System.Windows.Forms.Timer myTimer = new System.Windows.Forms.Timer();
public Form1()
{
InitializeComponent();
//Set the timer tick event
myTimer.Tick += new System.EventHandler(myTimer_Tick);
}
private void button1_Click(object sender, EventArgs e)
{
//Set the timer tick interval time in milliseconds
myTimer.Interval = 1000;
//Start timer
myTimer.Start();
}
//Timer tick event handler
private void myTimer_Tick(object sender, System.EventArgs e)
{
this.label1.Text = "Successful";
//Stop the timer - if required
myTimer.Stop();
}
}
sure, that is possible. your going to want to do it with javascript/jquery on the client side to avoid a page refresh, i am thinking. here is a link to how to run javascript on a timer.
Related
I need to make a splash screen that is visible for 5000 milliseconds before closing. I pass in 5000 to my SplashScreen form constructor and set timer1.Interval = time. I can't seem to find a straightforward answer online and I don't have much experience with timers. I assume that I need to show the splash screen, start the timer, check for when timer1.Tick occurs, and close the form but I don't know the syntax on how to do that.
private void Form1_Load(object sender, EventArgs e)
{
SplashScreen splash = new SplashScreen(5000, appLogo, "Text Editor", "Copyright (c) 2020", "John Doe");
splash.timer1.Enabled = true;
splash.ShowDialog();
splash.timer1.Start();
// Wait for Tick event to occur.....
splash.Close();
}
In your SplashScreen form, you need to define the Tick event:
timer1.Tick += new EventHandler(CloseForm);
That calls a method to close the form:
private void CloseForm(Object source, EventArgs eventArgs)
{
this.Close();
}
I want to add functionality to my WinForms so that when it starts a counter starts which will be in hh:mm. I know this can be done using a timer. I have made a time label which displays the current time, but I don't know how to start the timer when the form is loaded. Is there any method or class for that?
Place Timer component to your form (drag it from ToolBox - it's imporant, because timer should be registered as form's component to be disposed correctly when form closes). Set timer's Interval property to 60000 (that's equal to one minute). And subscribe to Tick event:
void timer1_Tick(object sender, EventArgs e)
{
if (endTime < DateTime.Now)
{
MessageBox.Show("Time is out!");
timer1.Stop();
return;
}
timeLabel.Text = (endTime - DateTime.Now).ToString(#"hh\:mm");
}
On Form_Load event handler start timer and save countdown end time:
private DateTime endTime; // field to store end time
void Form1_Load(object sender, EventArgs e)
{
endTime = DateTime.Now.AddMinutes(120); // set countdown to 120 minutes
timer1.Start();
}
The creation of a timer is very simple and straight forward:
Timer t1 = new Timer();
t1.Interval = 100;
t1.Tick+=new EventHandler(t1_Tick);
t1.Start();
void t1_Tick(object sender, EventArgs e)
{
}
For more information see http://msdn.microsoft.com/en-us/library/system.timers.timer(v=vs.80).aspx
I'm programming a WPF application, and I'd like to raise an event if the user has not interacted with the program for 30 seconds. That is to say, no keyboard or/and mouse events.
The reason I want do do this is because I want to bring attention to the screen if a variable alertstate has been set to true.
I'm thinking of using something along the lines of BackgroundWorker but I really don't know how I can get the time a user has not interacted with the program. Can someone point me in the right direction?
I guess this question basically comes down to checking if a user has interacted with the screen. How do I do this?
One way you could do this is to use GetLastInputInfo. This information will give you the time elapsed (in ticks) since last user interaction on mouse/keyboard.
You can have information here :
http://www.pinvoke.net/default.aspx/user32.GetLastInputInfo
So have a timer which checks for the last time an interaction went on. If you need accuracy, you can either check each 5 second for example OR you can, when you see that idle is ongoing for y seconds (y<30), setup a one-time timer that will check for idle time after (30-y) seconds.
You need to record the last time the user moved the mouse or pressed a key and then check if that time is greater than your threshold.
So you need to add mouse move, mouse click and keyboard handlers to your application (this is Silverlight code so you might have to change namespaces etc.):
private void AttachEvents()
{
Application.Current.RootVisual.MouseMove += new MouseEventHandler(RootVisual_MouseMove);
Application.Current.RootVisual.KeyDown += new KeyEventHandler(RootVisual_KeyDown);
Application.Current.RootVisual.AddHandler(UIElement.MouseLeftButtonDownEvent, (MouseButtonEventHandler)RootVisual_MouseButtonDown, true);
Application.Current.RootVisual.AddHandler(UIElement.MouseRightButtonDownEvent, (MouseButtonEventHandler)RootVisual_MouseButtonDown, true);
}
Then in the handlers have code like this for the mouse move:
private void RootVisual_MouseMove(object sender, MouseEventArgs e)
{
timeOfLastActivity = DateTime.Now;
}
and a similar one for the KeyDown event handler.
You will have to set off a timer:
idleTimer = new DispatcherTimer();
idleTimer.Interval = TimeSpan.FromSeconds(1);
idleTimer.Tick += new EventHandler(idleTimer_Tick);
// Initialise last activity time
timeOfLastActivity = DateTime.Now;
Then in the tick event handler have something like this:
private void idleTimer_Tick(object sender, EventArgs e)
{
if (DateTime.Now > timeOfLastActivity.AddSeconds(30))
{
// Do your stuff
}
}
Use ComponentDispatcher.ThreadIdle and DispatcherTimer to achieve this.
DispatcherTimer timer;
public Window1()
{
InitializeComponent();
ComponentDispatcher.ThreadIdle += new EventHandler(ComponentDispatcher_ThreadIdle);
timer = new DispatcherTimer();
timer.Interval = TimeSpan.FromSeconds(30);
timer.Tick += new EventHandler(timer_Tick);
}
void timer_Tick(object sender, EventArgs e)
{
//Do your action here
timer.Stop();
}
void ComponentDispatcher_ThreadIdle(object sender, EventArgs e)
{
timer.Start();
}
The Timer following is System.Windows.Forms.Timer
C# Code:
Timer myTimer = new Timer();
myTimer.Interval = 10000;
myTimer.Tick += new EventHandler(doSth);
myTimer.Start();
The timer will doSth every 10 seconds, but how to let it doSth immediately when starting?
I tried to create a custom timer which extends Timer, but I can't override the Start method.
For now, my code is:
myTimer.Start();
doSth(this, null);
I don't think it's good. How to improve it?
It's perfect. Don't change a thing.
I'm not sure of your exact requirements but why not put the code inside your timer callback inside another method?
e.g.
private void tmrOneSec_Tick(object sender, System.EventArgs e)
{
DoTimerStuff();
}
private void DoTimerStuff()
{
//put the code that was in your timer callback here
}
So that way you can just call DoTimerStuff() when your application starts up.
The timer has to have form level scope, and it's not clear that you have that. I whipped up a small example out of curiosity and it is working for me:
private void Form1_Load(object sender, EventArgs e)
{
txtLookup.Text = "test";
DoSomething();
timer1.Start();
}
private void timer1_Tick(object sender, EventArgs e)
{
DoSomething();
}
private void DoSomething()
{
txtLookup.Text += "ticking";
}
Every 10 seconds it appends another "ticking" to the text in the textbox.
You say,
"The timer will doSth every 10 seconds, but how to let it doSth immediately when starting?"
I say, call doSth immediately before calling the timer's start method
Can we show the windows form for just some specific time span, say 1 minute, then close it automatically?
Add a Timer control from Toolbox.
Set some attributes.
this.timer1.Enabled = true;
this.timer1.Interval = 60000;
this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
and define Tick event handler
private void timer1_Tick(object sender, EventArgs e)
{
Close();
}
Use a Timer, let it close the form after the amount of time you need it to.
Yes. Use a System.Windows.Forms.Timer, and when the timer fires, call this.Close().