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();
}
Related
I do not know how to solve this problem:
I want in my WPF Application something like a screensaver which pops up (let's say after 20 seconds) if you do not interact with the program. I tried researching, but I did not find anything and I do not know how to start. Does anyone have any tips for me?
You can for example start DispacherTimer and reset it if person move mouse or click something. In event check is time's up start new window/popup/dialog modal with screensaver, if person move mouse or click in screensaver close it and back to previous window.
Something about DispacherTimer you can find here:
WPF Timer Like C# Timer
or here https://msdn.microsoft.com/en-gb/library/system.windows.threading.dispatchertimer%28v=vs.90%29.aspx
You can do something like this then all you have to do is just set a timmer in the app.cs that resets.
private DispatcherTimer _timer;
protected override void OnStartup(StartupEventArgs e)
{
_timer = new DispatcherTimer();
_timer.Tick += Timer_Tick;
_timer.Interval = new TimeSpan(0,0,0,20,0);
_timer.Start();
EventManager.RegisterClassHandler(typeof(Window),Window.MouseMoveEvent, new RoutedEventHandler(Reset_Timer));
EventManager.RegisterClassHandler(typeof(Window), Window.MouseDownEvent, new RoutedEventHandler(Reset_Timer));
EventManager.RegisterClassHandler(typeof(Window), Window.KeyDownEvent, new RoutedEventHandler(Reset_Timer));
}
private void Timer_Tick(object sender, EventArgs e)
{
MessageBox.Show("Ticked");
}
private void Reset_Timer(object sender, EventArgs e)
{
_timer.Interval = new TimeSpan(0,0,0,20,0);
}
This will reset the timer every time you move your mouse click your mouse or push any key in the window.
can someone please let me know why the System.Windows.Forms.Timer continues to show multiple message boxes? I thought that it is on GUI thread ... and therefore after the first messagebox the GUI thread should block. But this is not the case
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
int nValue = 0;
void tmr_Tick(object sender, EventArgs e)
{
nValue++;
MessageBox.Show(nValue.ToString());
}
System.Windows.Forms.Timer tmr = new System.Windows.Forms.Timer();
private void btnStartTimer_Click(object sender, EventArgs e)
{
tmr.Interval = 500;
tmr.Enabled = true;
tmr.Tick += new EventHandler(tmr_Tick);
}
}
The MessageBox.Show() method includes (as all modal dialogs do) a message loop that continues to pump window messages.
Window messages are what allow a window to interact with the user (update itself, accept input, etc.), as well as what allows the Forms.Timer class to work.
If you want your Forms.Timer to stop ticking when the dialog is shown, you need to set the timer's Enabled property to false before you show the dialog.
In your Tick event stop the timer and then start again after MessageBox.Show like:
void tmr_Tick(object sender, EventArgs e)
{
tmr.Enabled = false;
nValue++;
MessageBox.Show(nValue.ToString());
tmr.Enabled = true;
}
The reason you are getting repeated MessgeBoxes is because your timer is continuing after showing the first MessageBox.
A message box does not block the GUI-Thread. It's as simple as that. You can interact with the message box, after all :)
Also: The internal workings of the timer are not clear, but I would guess that it runs on another thread and just returns on the GUI-Thread.
I thought the Load event might help, but the following code just shows “Done” immediately.
public Form1()
{
InitializeComponent();
Load += new EventHandler(Form1_Load);
}
void Form1_Load(object sender, EventArgs e)
{
System.Threading.Thread.Sleep(3000);
Text = "Done";
}
How do I make it Sleep after the form is shown?
Thanks.
There is a Shown event for a windows form. Check out: http://msdn.microsoft.com/en-us/library/system.windows.forms.form.shown.aspx
Or if you are lazy, here you go:
public Form1()
{
InitializeComponent();
Shown += Form1_Shown;
}
private void Form1_Shown(object sender, EventArgs e)
{
System.Threading.Thread.Sleep(3000);
Text = "Done";
}
Enjoy.
I would suggest do not block a form, process something and after show in its title "Done", cause that what you want to do, I presume. This gives to the user blocked UI feeling, which is not good.
It's definitely better to show some temporary "Wait for..." form and on completion of the operation/calculation you perform, show your main form.
Much more UX focused design.
You could start a Timer in the Form1_Load method and link its Elapsed event to a method that displays the message.
Thread.Sleep(3000); in the Load event handler delays the form opening for 3 seconds. This why it does not work as you expect. A timer is the best solution.
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.
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().