I have a program that disables the lockscreen and stop a service in windows. I have two buttons Enable,Disable and a combo box that has preset times. When My program is ran and the user clicks Enable the program should disable lock screen until the user manually
clicks disable. What I am trying to accomplish is to keep the program from running all night long if user never hits disable. So by selecting a preset time out of the combo box the program will auto disable it self.
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
DateTime time = DateTime.Today;
for (DateTime _time = time.AddHours(16); _time < time.AddHours(18); _time = _time.AddMinutes(30))
{
comboBox1.Items.Add(_time.ToShortTimeString());
}
}
private static System.Timers.Timer _Timer;
private DateTime _lastRun = DateTime.Now;
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
string strTime_Start = DateTime.Today.ToString();
string strTime_End = comboBox1.SelectedItem.ToString();
}
public void button1_Click(object sender, EventArgs e)
{
button1.Enabled = false;
button2.Enabled = true;
_Timer = new System.Timers.Timer(10 * 60 * 1000);
_Timer.Elapsed += new System.Timers.ElapsedEventHandler(timer_Elapsed);
DisableLock();
}
private void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
if (strTime_End < DateTime.Now.Date) //I think this would be where I need to have strTime_End?
{
_Timer.Stop();
_lastRun = DateTime.Now;
}
}
}
The simplest solution in my mind would be to keep an instance variable for your stop time, and each combobox item you have sets this stop time, the timer_tick event would simply check if it has passed that time. A blank item in the combo box can clear the variable.
private DateTime timeToStop;
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
timeToStop = DateTime.Now.Add(DateTime.Parse(comboBox1.Text));
}
catch(Exception)
{
timeToStop = new DateTime(3000, 01, 01, 00, 00, 00);
}
}
public void disableButton_Click(object sender, EventArgs e)
{
_Timer.Stop();
_lastRun = DateTime.Now;
}
private void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
if (DateTime.Now >= timeToStop)
{
_Timer.Stop();
_lastRun = DateTime.Now;
// Disable regkey
}
}
from what i understood so far, you can just add :
comboBox1.Enabled = false;
when the time is elapsed, i.e. in the event.
Related
I wrote some code to create a reminder. It should warn me through a notification when it's 10 am. To make this possible I created a DateTime object as DateTime.Now to get local time, and I used a timer to check every minute if it was the same time I wanted to be warned. The problem is that my application notify me only when form loads, but it doesn't when the time comes and the app is already running.
I'll leave you the code below. Thanks in advance.
public partial class Form1 : Form
{
NotifyIcon notify;
DateTime now;
public Form1()
{
InitializeComponent();
notify = new NotifyIcon()
{
Visible = true,
Icon = Properties.Resources.icon,
BalloonTipTitle = this.Text
};
now = DateTime.Now;
}
private void Form1_Load(object sender, EventArgs e)
{
timer1.Start();
}
private void notification()
{
while(true)
{
if (now.Hour.Equals(10) && now.Minute.Equals(30))
{
notify.BalloonTipText = "It's 10:30 am";
notify.ShowBalloonTip(3000);
timer1.Stop();
notify.Dispose();
}
}
}
private void timer1_Tick(object sender, EventArgs e)
{
notification();
}
}
Remove while(true) loop from notification. You have tick timer which will call notification regularly - and now you check the time infinitely after first tick.
now must be assigned on every tick, not at startup.
:
private void notification()
{
DateTime now = DateTime.Now;
if (now.Hour == 10 && now.Minute == 30)
{
notify.BalloonTipText = "It's 10:30 am";
notify.ShowBalloonTip(3000);
timer1.Stop();
}
}
I've been trying to create a countdown timer(from 30 minutes) in a c# winforms application that has the ability to pause, and then resume from where the pause took place. I've tried a number of solutions to achieve this as I know there isn't a specific pause function of the System.Windows.Forms.Timer. I've scoured the internet but couldn't find anything that I could apply to my scenario. Everything I've tried either results in the timer starting again from 30 minutes, or continuing from where it would have been without a pause. This is driving me mad. Can anybody help or suggest an alternative way of doing this? This is my first post here so apologies if I've made any errors. Code below. I've commented out the code that is causing me an issue - I know it's not correct, either syntactically or logically.
public partial class FormWithTimer : Form
{
System.Windows.Forms.Timer timerx = new System.Windows.Forms.Timer();
DateTime startTime = DateTime.Now;
DateTime stopTime = DateTime.Now;
public FormWithTimer()
{
InitializeComponent();
TimerLabel.Text = "30:00";
}
private void Form1_Load(object sender, EventArgs e)
{
}
void timer_Tick(object sender, EventArgs e)
{
}
public void StartButton_Click(object sender, EventArgs e)
{
startTime = DateTime.Now;
BeginTextBox.Text = startTime.ToString();
TimerLabel.Visible = true;
timerx.Tick += (obj, args) =>
TimerLabel.Text = (TimeSpan.FromMinutes(30) - (DateTime.Now - startTime)).ToString("mm\\:ss");
timerx.Enabled = true;
}
public void PauseButton_Click(object sender, EventArgs e)
{
if (PauseButton.Text == "Pause")
{
timerx.Stop();
PauseButton.Text = "Start";
stopTime = DateTime.Now;
}
else
{
PauseButton.Text = "Pause";
timerx.Start();
TimerLabel.Visible = true;
//timerx.Tick += (obj, args) =>
// TimerLabel.Text = (TimeSpan.FromMinutes(30) - (DateTime.Now - (startTime - stopTime))).ToString("mm\\:ss");
timerx.Enabled = true;
}
}
}
I guess you are trying to have the timer continue where it was when it got paused.
To do that, I would suggest using stopTime for that matter:
In your "Pause-Unpause"- Routine:
public void PauseButton_Click(object sender, EventArgs e)
{
if (PauseButton.Text == "Pause")
{
timerx.Stop();
PauseButton.Text = "Start";
stopTime = DateTime.Now;
}
else
{
PauseButton.Text = "Pause";
startTime += (DateTime.Now - stopTime);
timerx.Start();
TimerLabel.Visible = true;
timerx.Enabled = true;
}
}
Here's the pseudo code:
private void ForgetSave()
{
if (the SaveRegularly method hasn't been used within 3 mins)
MessageBox.Show("Would you like to save any changes before closing?")
......... the code continues.
}
else
{
this.close();
}
Does anybody know how to write the first line of the if statement?
Simply remember when the last save time was:
private const TimeSpan saveTimeBeforeWarning = new TimeSpan(0,1,0); //1 minute
private static DateTime _lastSave = DateTime.Now;
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if ((DateTime.Now - _lastSave) > saveTimeBeforeWarning)
{
if(MessageBox.Show("Would you like to save any changes before closing?") == DialogResult.Yes);
{
Save();
}
}
}
private void Save()
{
//save data
_lastSave = DateTime.Now
}
As Ahmed suggested you can use a timer and a flag to know when you have to display the message, I left you a piece of code to get you started
private const int SAVE_TIME_INTERVAL = 3 * 60 * 1000;
private bool iWasSavedInTheLastInterval = true;
private System.Windows.Forms.Timer timer;
public Form1()
{
InitializeComponent();
//Initialize the timer to your desired waiting interval
timer = new System.Windows.Forms.Timer();
timer.Interval = SAVE_TIME_INTERVAL;
timer.Tick += Timer_Tick;
timer.Start();
}
private void Timer_Tick(object sender, EventArgs e)
{
//If the timer counts that amount of time we haven't saved in that period of time
iWasSavedInTheLastInterval = false;
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if (iWasSavedInTheLastInterval == false)
{
MessageBox.Show("Would you like to save any changes before closing?");
}
}
private void btnSave_Click(object sender, EventArgs e)
{
//If a manual save comes in then we restart the timer and set the flag to true
iWasSavedInTheLastInterval = true;
timer.Stop();
timer.Start();
}
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.
I am creating a stopwatch type application. I've used a label to display time. When application starts, the label is initialized to '00:00:00' and I want to increment its time by every 1 second.
I am trying to accomplish this job by using timer.
In your timer get the system time so your timer must be with very small interval like 200ms. To calculate your time just calculate the currentTime - startTIme in seconds.
If I am getting you right, it may surely work. Set initial label Text as "00:00:00". Set timer interval as 1000.
private void btnStartWatch_Click(object sender, EventArgs e)
{
timer1.Enabled = true;
}
private void btnPauseWatch_Click(object sender, EventArgs e)
{
timer1.Enabled = false;
}
int i = 1;
DateTime dt = new DateTime();
private void timer1_Tick(object sender, EventArgs e)
{
label1.Text = dt.AddSeconds(i).ToString("HH:mm:ss");
i++;
}
Hope it helps.
You want the TimeSpan structure.
Something like:
TimeSpan current = new TimeSpan(0);
// In your update loop:
current += TimeSpan.FromSeconds(1);
I have a timer on one of my apps.
private int _seconds;
public string TimeDisplay
{
get
{
TimeSpan ts = new TimeSpan( 0, 0, _seconds );
return string.Format("{0,2:00}:{1,2:00}:{2,2:00}", ts.Minutes, ts.Minutes, ts.Seconds);
}
}
All you have to do is have your timer_tick even increment _seconds and NotifyPropertyChanged() if you're binding to it. Either way, TimeDisplay will have your result.
i hope understand.
private void Button1_Click(System.Object sender, System.EventArgs e)
{
Timer1.Interval = 1000;
Timer1.Start();
}
private void Timer1_Tick(System.Object sender, System.EventArgs e)
{
this.Label1.Text = DateTime.Now.ToString("hh/mm/ss");
}
Regards