I need a simple timer that prints the countdown in a TextBlock in my UWP app. I was suggested to use DispatcherTimer. That's my code.
private void MainButton_Click(object sender, RoutedEventArgs e)
{
dispatcherTimer = new DispatcherTimer();
dispatcherTimer.Tick += DispatcherTimer_Tick;
dispatcherTimer.Interval = new TimeSpan(1000);
dispatcherTimer.Start();
}
private int Seconds;
private void DispatcherTimer_Tick(object sender, DispatcherTimer e)
{
Seconds++;
MainTextBlock.Text = Seconds.ToString();
}
Anyway, I see this error and I cannot figure it out.
Any help in finding a better solution for my needs is welcome, too.
Please edit above DispatcherTimer_Tick like the following. You could press + = Tab key to generate evet handle method automatically.
private void DispatcherTimer_Tick(object sender, object e)
{
}
Related
same Question as this one but the last answer is the one i wanted.. I need c# wpf... i tried the last answer but i can't seem to get the interval.. sometimes the key pressed can be seen, and sometimes it doesn't.. how can I get same interval when key press?
private void TextBox_KeyDown(object sender, KeyEventArgs e)
{
dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 1);
dispatcherTimer.Start();
}
i tried
dispatcherTimer.Interval = TimeSpan.FromSeconds(5);
but still the same...
EDIT
private void dispatcherTimer_Tick(object sender, EventArgs e)
{
string str = "";
for(int i = 0; i < txtPass.Text.Length; i++)
str += char.ConvertFromUtf32(8226);
txtPass.Text = str;
txtPass.Select(txtPass.Text.Length, 0);
}
You don't need to subscribe to new event handler every time. Just do it one time in the constructor
dispatcherTimer = new DispatcherTimer();
dispatcherTimer.Tick += dispatcherTimer_Tick;
dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 1);
In the Keydown event, just reset the timer (Unfortunately we don't have any Reset method)
private void TextBox_KeyDown(object sender, KeyEventArgs e)
{
dispatcherTimer.Stop();
dispatcherTimer.Start();
}
As the timer ticks, just Stop the timer and do your work
void dispatcherTimer_Tick(object sender, EventArgs e)
{
dispatcherTimer.Stop();
//your code
}
I read a separate article here that explained how to make a simple text animation in a windows form application. The Code below worked perfectly in a form. However, I am creating a Windows Store App and it does not work. The timer class is not recognized, and because of this, the code does not work. Do I need to make a timer class, or is there some other class that I should use? If I need to make a timer class, how would I do that? Thank you.
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
t = new Timer();
t.Interval = 40;
t.Tick += new EventHandler(t_Tick);
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
string stuff = "This is some text that looks like it is being typed.";
int pos = 0;
Timer t;
void t_Tick(object sender, EventArgs e)
{
if (pos < stuff.Length)
{
textBox1.AppendText(stuff.Substring(pos, 1));
++pos;
}
else
{
t.Stop();
}
}
private void button1_Click_1(object sender, EventArgs e)
{
pos = 0;
textBox1.Clear();
t.Start();
}
}
The WinForms Timer isn't available in Windows Store Apps. You can use DispatcherTime instead.
dispatcherTimer = new DispatcherTimer();
dispatcherTimer.Tick += dispatcherTimer_Tick;
dispatcherTimer.Interval = new TimeSpan(0, 0, 1);
dispatcherTimer.Start();
void dispatcherTimer_Tick(object sender, object e) {
}
I have four buttons that are called "ship1,ship2" etc.
I want them to move to the right side of the form (at the same speed and starting at the same time), and every time I click in one "ship", all the ships should stop.
I know that I need to use a timer (I have the code written that uses threading, but it gives me troubles when stopping the ships.) I don't know how to use timers.
I tried to read the timer info in MDSN but I didn't understand it.
So u can help me?
HERES the code using threading.
I don't want to use it. I need to use a TIMER! (I posted it here because it doesnt give me to post without any code
private bool flag = false;
Thread thr;
public Form1()
{
InitializeComponent();
}
private void button2_Click(object sender, EventArgs e)
{
flag = false;
thr = new Thread(Go);
thr.Start();
}
private delegate void moveBd(Button btn);
void moveButton(Button btn)
{
int x = btn.Location.X;
int y = btn.Location.Y;
btn.Location = new Point(x + 1, y);
}
private void Go()
{
while (((ship1.Location.X + ship1.Size.Width) < this.Size.Width)&&(flag==false))
{
Invoke(new moveBd(moveButton), ship1);
Thread.Sleep(10);
}
MessageBox.Show("U LOOSE");
}
private void button1_Click(object sender, EventArgs e)
{
flag = true;
}
Have you googled Windows.Forms.Timer?
You can start a timer via:
Timer timer = new Timer();
timer.Interval = 1000; //one second
timer.Elapsed += new System.Timers.ElapsedEventHandler(timer_Elapsed);
timer.Enabled = true;
timer.Start();
You'll need an event handler to handle the Elapsed event which is where you'll put the code to handle moving the 'Button':
private void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
MoveButton();
}
I am a newbie in timer in wpf and I need a code that every 5mins there is a message box will pop up. .can anyone help me for the simple code of timer.
That's what I tried so far:
System.Windows.Threading.DispatcherTimer dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
private void test()
{
dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
dispatcherTimer.Interval = new TimeSpan(0, 0, 1);
dispatcherTimer.Start();
}
private void dispatcherTimer_Tick(object sender, EventArgs e)
{
// code goes here
}
private void button1_Click(object sender, RoutedEventArgs e)
{
test();
}
In WPF, you use a DispatcherTimer.
System.Windows.Threading.DispatcherTimer dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
dispatcherTimer.Interval = new TimeSpan(0,5,0);
dispatcherTimer.Start();
private void dispatcherTimer_Tick(object sender, EventArgs e)
{
// code goes here
}
Adding to the above. You use the Dispatch timer if you want the tick events marshalled back to the UI thread. Otherwise I would use System.Timers.Timer.
I would like to delay an action by several seconds after a mouse pointer has entered and remained for period of time in a winform graphics rectangle. What would be a way to do this?
Thanks
c#, .net 2.0, winform
private Timer timer;
private void rect_MouseEnter(object sender, EventArgs e)
{
timer = new Timer();
timer.Interval = 3000;
timer.Start();
timer.Tick += new EventHandler(t_Tick);
}
private void rect_MouseLeave(object sender, EventArgs e)
{
timer.Dispose();
}
void t_Tick(object sender, EventArgs e)
{
timer.Dispose();
MessageBox.Show(#"It has been over for 3 seconds");
}
Something such as:
static void MouseEnteredYourRectangleEvent(object sender, MouseEventArgs e)
{
Timer delayTimer = new Timer();
delayTimer.Interval = 2000; // 2000msec = 2 seconds
delayTimer.Tick += new ElapsedEventHandler(delayTimer_Elapsed);
}
static void delayTimer_Elapsed(object sender, EventArgs e)
{
if(MouseInRectangle())
DoSomething();
((Timer)sender).Dispose();
}
Probably could be done more efficiently, but should work :D
Two ways to set up MouseInRectangle -> one is to make it get the current mouse coordinates and the position of the control and see if it's in it, another way would be a variable which you would set to false on control.mouse_leave.
Try using the Timer control (System.Windows.Forms.Timer).
Please notice System.Windows.Forms.Timer is not Exact and you cannot rely it will act on exactly the interval given.
it would be prefeable to use System.Times.timer and use the Invoke action to return to the GUI thread.