I am quite new to using the chart coding.But i manage to display chart on a click of the button. And 2nd click will change the "x-axis" as i set it as time.
Is there a way to auto update every 5 for the "X-axis" ?? As i know timer is needed to set the interval timing.
private void timer1_Tick(object sender, EventArgs e)
{
timer1.Start();
this.Time.Text = System.DateTime.Now.ToString("hh:mm:ss tt");
}
private void GetData_Click(object sender, EventArgs e)
{
sqlite_con1.Open();
try
{
sqlite_cmd = sqlite_con1.CreateCommand();
sqlite_cmd.CommandText = "SELECT * FROM Temperature where id=12";
sqlite_reader = sqlite_cmd.ExecuteReader();
while (sqlite_reader.Read())
{
this.chart1.Series["SAT"].Points.AddXY(Time.Text, sqlite_reader["Temp"]);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
sqlite_con1.Close();
}
Any help is much appreciated. Thanks.
you have to set timer time and sets its property and event handler into timer at specific time
Timer t = new Timer();
t.Interval = 5000; // for five second interval
timer1.Enabled = true;
timer1.Tick += new System.EventHandler(timer1_Tick);
and then you have to call you chart binding method in
private void timer1_Tick(object sender, EventArgs e)
{
timer1.Start();
this.Time.Text = System.DateTime.Now.ToString("hh:mm:ss tt");
//here --- which you are calling on GetData_Click event by making
//separate method and call it here also
}
Related
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.
C# code
TextTime.Text = DateTime.Now.ToString();
Want to refresh this text box every second
Or show a Digital Clock any Idea
You may use a DispatcherTimer:
var timer = new DispatcherTimer
{
Interval = TimeSpan.FromSeconds(1.0)
};
timer.Tick += (o, e) =>
{
TextTime.Text = DateTime.Now.ToString();
};
timer.Start();
The easy way is to add a timer to your app and do it as shown:
Form Load:
private void Form1_Load(object sender, EventArgs e) {
txtdate.Text = DateTime.Now.ToString(("dddd" + ("," + "MM-dd-yyyy")));
Timer1.Interval = 1000;
Timer1.Enabled = true;
}
Timer Tick:
private void Timer1_Tick(object sender, EventArgs e) {
txtTime.Text = DateTime.Now.ToString("HH:mm:ss");
}
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.
I have a label. I need to change the text property every 3 seconds. Please let me know how to do this. I tried using timer, but my application is going into infinite loop. I do not want this to happen/ Any help will be appreciated!
timer1.Interval = 5000;
timer1.Enabled = true;
timer1.Tick += new System.EventHandler (OnTimerEvent);
private void OnTimedEvent(object source, ElapsedEventArgs e)
{
refreshStatusBar();
}
In your class constructor, you need to initialize the initial text for the Label and the .NET Framework's Timer component.
timer.Tick += new EventHandler(timer_Tick);
timer.Interval = (1000) * (3); // Timer will tick every 3 seconds
timer.Enabled = true;
timer.Start();
label.Text = DateTime.Now.ToString(); // initial label text.
Then in the timer's tick handler, update the Label's text property.
private void timer_Tick(object sender, ElapsedEventArgs e)
{
label.Text = DateTime.Now.ToString(); // update text ...
}
You should use thread, and when you want to stop call yourthread.Abort();
Update: SynchronizationContext method:
System.Threading.SynchronizationContext sync;
private void Form1_Load(object sender, System.EventArgs e)
{
sync = SynchronizationContext.Current;
System.Windows.Forms.Timer tm = new System.Windows.Forms.Timer { Interval = 1000 };
tm.Tick += tm_Tick;
tm.Start();
}
//Handles tm.Tick
private void tm_Tick(object sender, System.EventArgs e)
{
sync.Post(dopost, DateAndTime.Now.ToString());
}
public void dopost(string txt)
{
Label1.Text = txt;
}
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