I have a label pop up letting the user when they click the copy button that it's been copied using a label in the bottom right on the app. But I want the text to go away after 2 or so seconds. Then come back if they click copy again, this is my copy buttons code:
private void copyBtn_Click(object sender, EventArgs e)
{
labelCopied.Text = "Copied to Clipboard!";
Clipboard.SetText(btcTxtBox.Text);
SystemSounds.Hand.Play();
}
I do know labelCopied.Text.Remove(0); would clear the label but I cannot figure out how to implement it using a timer
Use a Timer for this:
private void copyBtn_Click(object sender, EventArgs e)
{
labelCopied.Text = "Copied to Clipboard!";
Clipboard.SetText(btcTxtBox.Text);
SystemSounds.Hand.Play();
Timer t = new Timer();
t.Interval = 2000; //2000 milliseconds = 2 seconds
t.Tick += (a,b) =>
{
labelCopied.Text = string.Empty;
t.Stop();
};
t.Start();
}
EDIT
Task.Delay uses a Timer internally. So if you don't mind a minimal performance overhead, Task.Delay is good to go. Additionally Task.Delay is more portable since Timer is WinForms specific (In WPF you would use DispatcherTimer)
private async void copyBtn_Click(object sender, EventArgs e)
{
labelCopied.Text = "Copied to Clipboard!";
Clipboard.SetText(btcTxtBox.Text);
SystemSounds.Hand.Play();
await Task.Delay(2000);
labelCopied.Text = "";
}
Assuming WinForms, use async/await with Task.Delay(), like this:
private async void copyBtn_Click(object sender, EventArgs e)
{
labelCopied.Text = "Copied to Clipboard!";
Clipboard.SetText(btcTxtBox.Text);
SystemSounds.Hand.Play();
await Task.Delay(2000);
labelCopied.Text = "";
}
Related
I couldn't find the answer to this question anywhere. Is there any command that displays a picture box for a specified amount of milliseconds? I know I could do thread.sleep or task.delay. But is there an alternative to these? Something that replaces:
picturebox1.visible = true;
thread.sleep(1000);
picturebox1.visible = false;
Thanks alot !
You can use Thread.Sleep, Task.Delay or you can use a Timer which is described in other answers.
Probably you don't like to use Task.Delay or Thread.Sleep because you think it makes your program to go to a blocking and freezing state. You can use Thread.Sleep in a different thread to prevent freezing the form:
this.pictureBox1.Visible = true;
Task.Run(() =>
{
Thread.Sleep(5000);
this.Invoke(new Action(() =>
{
this.pictureBox1.Visible = false;
}));
});
//Other codes which you put here, will not wait and will run immediately.
//Then after 5 seconds the picture box will be invisible again.
private void Form1_Load(object sender, EventArgs e)
{
picturebox1.visible = true;
Timer MyTimer = new Timer();
MyTimer.Interval = (1000);
MyTimer.Tick += new EventHandler(MyTimer_Tick);
MyTimer.Start();
}
private void MyTimer_Tick(object sender, EventArgs e)
{
picturebox1.visible = false;
(sender as Timer).Stop();
}
You can also do this using GDI+. Instead of using PictureBox, simply add a handler for your form's Paint event. Inside it, draw your image using e.Graphics.DrawImage() method. Use a global bool variable that you should set to false after 1 second (or whatever your requirement is). In the Paint event, check this variable before drawing your image. Something like this:
bool DrawImage = true;
private void Form1_Load(object sender, EventArgs e)
{
Task.Delay(1000).ContinueWith((t) =>
{
DrawImage = false;
Invalidate();
});
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
if (DrawImage)
e.Graphics.DrawImage(YOUR_IMAGE_HERE, 0, 0);
}
I have a background worker which i am using to perform some task. Its working as expected. However, i have a timer that i want to add and make it start the bw and counting like 10 seconds after page load. I put my timer.Interval to 10000. the timer has a tick events as below
private DateTime dateETA;
private void TimerEventHandler(object sender, EventArgs e)
{
while (bw.CancellationPending ==false)
{
if (timerPro.Enabled == true)
{
dateETA = Convert.ToDateTime("1/1/0001 00:00:00");
dateETA = dateETA.AddMilliseconds(timerPro.Interval);
lblETA.Visible = true;
lblETA.Text = "Elapsed Time : " + Convert.ToString(dateETA.TimeOfDay);
// SetText("timer");
}
}
}
My background worker async is on the page contructor method and therefore run on load. just like below
if (bw.IsBusy != true)
{
this.btnPause.Enabled = true;
this.btnStop.Enabled = true;
btnStart.Enabled = false;
// timerPro.Start();
bw.RunWorkerAsync();
}
I wanted to start the timer together with my task therefore i put it before my bw.async . Then i realized the timer tick events does not fire when put before or within the dowork method of the background worker. I thought may be the bw thread is blocking the event from firing then i use an invoke method like below within the dowork in my attempt to start the timer or trigger the tick event of the timer.
this.Invoke((MethodInvoker)(() => { timerPro.Enabled = true; }));
It still does not fire. I am confused and any help or alternative would be appreciated.
I think you just want a running elapsed timer while the backgroundworker does its thing?
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private System.Diagnostics.Stopwatch SW = new System.Diagnostics.Stopwatch();
private void Form1_Load(object sender, EventArgs e)
{
timerPro.Interval = 1000;
timerPro.Tick +=new EventHandler(TimerEventHandler);
SW.Start();
timerPro.Start();
bw.RunWorkerAsync();
}
private void TimerEventHandler(object sender, EventArgs e)
{
lblETA.Visible = true;
TimeSpan TS = SW.Elapsed;
string elapsed = String.Format("{0}:{1}:{2}", TS.Hours.ToString("00"), TS.Minutes.ToString("00"), TS.Seconds.ToString("00"));
lblETA.Text = "Elapsed Time : " + elapsed;
}
private void bw_DoWork(object sender, DoWorkEventArgs e)
{
// ... do some work ...
}
private void bw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
timerPro.Stop();
}
}
I created a simple C# app that uses the beep console. I want to add a stop button to stop the beeping, but once the app starts to run it doesnt let me hit a close/button button. Below is the code i have.
private void button1_Click(object sender, EventArgs e)
{
int int1, int2, hours;
int1 = int.Parse(txtbox1.Text);
int2 = int.Parse(txtbox2.Text);
hours = ((60 / int1) * int2);
for (int i = 0; i <= hours; i++)
{
Console.Beep();
Thread.Sleep(int1 * 60000);
}
}
The reason is that you execute button1_Click in the GUI thread. When you call this method the thread will be stuck there for quite some time because you make it sleep.
If you remove Thread.Sleep(int1*60000); you will notice that your application is unresponsive until it is done beeping.
You should try to use a Timer instead. Something like this should work (this is based on the Windows.Forms.Timer):
private Timer timer = new Timer();
And set it up
timer.Tick += OnTick;
timer.Interval = int1 * 60000;
...
private void OnTick(object o, EventArgs e)
{
Console.Beep();
}
In your buttonclick you are now able to start and stop the timer:
timer.Start();
or
timer.Stop();
I would use a timer in this case, the reason why you can't close the form is because you are calling a sleep on the form thread from what I understand. Calling a sleep on the form thread will give the impression the app has crashed.
Here is a quick sample code I built in c#, it will beep the console at the time given. I hope it helps.
private void button1_Click(object sender, EventArgs e)
{
timer1.Tick += new EventHandler(timer_dosomething);
timer1.Interval = 60000;
timer1.Enabled = true;
timer1.Start();
}
private void button2_Click(object sender, EventArgs e)
{
timer1.Stop();
}
void timer_dosomething(object sender, EventArgs e)
{
Console.Beep();
}
In my project I would like to show message or call methods after 5 minutes for example, If the users didn't click on specific button, I wrote this code
Boolean flage = false;
private void button1_Click(object sender, EventArgs e)
{
Timer Clock;
Clock = new System.Windows.Forms.Timer();
Clock.Interval = 1000;
Clock.Start();
Clock.Tick += new EventHandler(Timer_Tick);
}
public void Timer_Tick(object sender, EventArgs eArgs)
{
if (flage == false)
{
MessageBox.Show("after period of time ");
}
}
private void button2_Click(object sender, EventArgs e)
{
flage = true;
}
Its keeping show the messageBox can any body help me.
Your Timer Clock variable is on the stack and ceases to exist when the function exits.
Try making it a member of the class.
Could any one help me to stop my timer in windows form C3 application? I added timer in form using designer and interval is set as 1000; I would like to do some actions after 5 seconds of waiting after button click. Please check the code and advise me. Problem now is I get MessageBox2 infinitely and never gets the timer stop.
static int count;
public Form1()
{
InitializeComponent();
timer1.Tick += timer1_Tick;
}
public void button1_Click(object sender, EventArgs e)
{
timer1.Enabled = true;
while(count>5)
{
....dosome actions...
}
}
private void timer1_Tick(object sender, EventArgs e)
{
count1++;
MessageBox.Show("Messagebox2");
if (count1 == 5)
{
//timer1.Enabled = false; timer1.Stop();
((System.Timers.Timer)sender).Enabled = false;
MessageBox.Show("stopping timer");
}
}
I would render the count useless and just use the timer 1 interval property and put your actions in the timer1_Tick event.
public void button1_Click(object sender, EventArgs e)
{
timer1.Interval = 5000;
timer1.Enabled = true;
}
private void timer1_Tick(object sender, EventArgs e)
{
timer1.Enabled = false;
MessageBox.Show("stopping timer");
// Your other actions here
}
You are incrementing count1 and checking count.
while(count1 > 5)
{
...dosome actions...
}
Which Timer do you use? Because C# supports class Timer from two different namespaces. One is from Forms, the other is from System.Timers. I would suggest you to use the other one - System.Timers.Timer.
Timer t = new Timer(20000); // created with 20seconds
t.Enabled = true; // enables firing Elapsed event
t.Elapsed += (s, e) => {
\\do stuff
};
t.Start();
In this short code you can see how the timer is created and enabled. By registering to the Elapsed event you explicitly say what to do after the time elapses. and this is done just once. Of course, there are some changes needed in case user clicks button before your limit is reached. But this is highly dependent on behavior of the action you demand.