I am trying to present to operator timer 00:00 on the start button event ( that start my program - long time event ) I enabled the timer but it doesn't tick only when the event finished or if message box occur .
I am using C# form timer .
Any idea how to implement in C# timer during long event ? I think is related to threading timer ? Any Example ? Please help ! thanks
private void Timer_elapsed_Tick(object sender, EventArgs e)
{
timeSec++;
if(timeSec >= 60)
{
timeSec = 0;
timeMin++;
}
DrawTime();
}
private void DrawTime()
{
lbSec.Text = string.Format("{0:00}", timeSec);
lbMin.Text = string.Format("{0:00}", timeMin);
}
private void start_Click(object sender, EventArgs e)
{
timer_elapsed.Enabled = true;
//do some event (long time)
//timer not works during this event
}
// when the event finished timer works
I think timer control not associated with Tick event. check your your code form designer cs whether you configured wired events handlers correctly for "Timer_elapsed_Tick". this.timer_elapsed.Tick += new System.EventHandler(this.Timer_elapsed_Tick);
solutions:
1.To works with System.Timers.Timer and not the windows form timer .
2.Add on click event Application.DoEvents .
Related
I have a button where I want to it to click every 5 seconds.
I also have another button where the first button will stop clicking.
This is the code so far I have
private void StartButton_Click(object sender, EventArgs e)
{
timer1.Enabled = true;
}
private void timer1_Tick(object sender, EventArgs e)
{
Timer timer = new Timer { Interval = 5000 };
timer.Start();
}
How do I go on about achieving this?
if the button will set timer start/stop called 'ControlButton', and another one called 'DoJobButton'. Setup a timer interval = 5000 like your code. and in's tick event have this code only
DoJobButton.PerformClick();
this will trigger DoJobButton button's click action.
and set timer enable/disable in ControlButton's click event.
I think this is enough for your goal.
Hey just wondering if anyone could help me out with a problem I'm encountering with a timer in my windows form application. Here is the code I'm using:
private void game_Timer_Tick(object sender, EventArgs e)
{
while (true)
{
int count = 0;
count++;
timeLabel.Text = TimeSpan.FromSeconds(count).ToString();
}
}
The problem I'm having is that whenever the window that this applies to opens and then after that nothing happens and I'm unable to do anything. When removing this code the window works fine so I'm unsure why its not working in relation to this section of code. Any thoughts? Thanks
If you want to display number of seconds since timer start, then declare field for holding start time:
private DateTime startTime;
Assign this field when you are starting timer:
game_Timer.Interval = 1000; // fire event each second
startTime = DateTime.Now;
game_Timer.Start();
And use it in Tick handler:
private void game_Timer_Tick(object sender, EventArgs e)
{
timeLabel.Text = (DateTime.Now - startTime).ToString();
}
What is wrong with your code? You have infinite loop inside Tick event handler. So when event fires first time, you are entering this loop and never exit it. And you are unable to do anything, because your application is busy with constant updating time label.
You can also use counter instead of saving timer start time. But you will need field anyway:
private int count = 0;
And event handler:
private void game_Timer_Tick(object sender, EventArgs e)
{
timeLabel.Text = TimeSpan.FromSeconds(++count).ToString();
}
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();
}
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.