This is the scenario, I have three NumericUpDown for the values of second, minute and hour, And if a number is entered in the NumericUpDown i.e. 5, it will be converted to 5000 ms so my Timer can read it as 5 seconds. I'm trying to make a scheduler for every interval and this is my code:
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Label13.Text = TimeSpan.FromSeconds(Form3.NumericUpDown1.Text).TotalMilliseconds
Label14.Text = TimeSpan.FromMinutes(Form3.NumericUpDown2.Text).TotalSeconds
Label15.Text = TimeSpan.FromHours(Form3.NumericUpDown3.Text).TotalMinutes
Dim times() As String = {Label13.Text, Label14.Text, Label15.Text}
For Each time In times
Dim interval As TimeSpan = TimeSpan.Parse(time)
Timer1.Interval = interval
MsgBox("hey")
Next
End Sub
And it has an error at Timer1.Interval = interval that says Timespan cannot be converted to Integer, and i can't think of any way to fix this, can you help me out? TIA~!
Try This
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
Timer1.Stop()
Timer1.Interval = New TimeSpan(0, 0, CInt(nudMinutes.Value), CInt(nudSeconds.Value), CInt(nudMilliseconds.Value)).TotalMilliseconds
Timer1.Start()
End Sub
Here are some ideas to get you past your current error.
Dim tsTest As TimeSpan = TimeSpan.FromSeconds(NumericUpDownTest.Value)
Label1.Text = tsTest.TotalSeconds.ToString("n0")
Timer1.Interval = CInt(tsTest.TotalMilliseconds)
Start with just doing seconds and when that code works see if you can add the others.
Related
So, I'm making a VB.NET software, and want to show minute format as XX minute, e.g: "05 minute left" and not like this: "5 minute left." My code now like this:
min = DateTime.Now.ToString("mm") + NumericUpDown2.Value
I've tried with big "MM" letters but it's just another time format.
Is that a countdown application, and when I'm try to check the time failed.
If Date.Time.Minutes = min Than
Alarm.show
End If
Although this code has not been tested it should give you some ideas of how to proceed. As far as the formatting is concerned - right pew, wrong church. Number.ToString("00")
Private AlarmTime As DateTime
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
AlarmTime = DateTime.Now.AddMinutes(NumericUpDown1.Value)
Timer1.Enabled = True
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
Dim TimeLeft As TimeSpan = AlarmTime - DateTime.Now
Dim MinutesLeft As Integer = TimeLeft.Minutes
Label1.Text = MinutesLeft.ToString("00")
If AlarmTime >= DateTime.Now Then
Alarm.Show()
Timer1.Enabled = False
End If
End Sub
The right way to do this is like this:
DateTime.Now.Minute.ToString("00")
I was wondering how I would go about fixing my countdown timer so that it shows the time in Hours:Minutes:Seconds?
currently, it only outputs the seconds and I'm not sure where I have gone wrong.
Any help is much appreciated.
Code:
Public Class Form1
Dim TargetDT As DateTime
Dim fields() As String
Dim Days, Hours, minutes, seconds, milliseconds As String
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
fields = Split(TextBox1.Text, ":")
Hours = fields(0)
minutes = fields(1)
seconds = fields(2)
Dim CountDownFrom As TimeSpan = TimeSpan.FromHours(Hours).FromMinutes(minutes).FromSeconds(seconds)
Timer1.Interval = 1000
TargetDT = DateTime.Now.Add(CountDownFrom)
Timer1.Enabled = True
End Sub
Private Sub Timer1_Tick(sender As Object, e As System.EventArgs) Handles Timer1.Tick
Dim ts As TimeSpan = TargetDT.Subtract(DateTime.Now)
If ts.TotalMilliseconds > 0 Then
Con1Time.Text = ts.ToString("hh\:mm\:ss")
Else
Con1Time.Text = "0:00:00"
Timer1.Stop()
MessageBox.Show("Done")
End If
End Sub
End Class
Start by assigning the time you want to countdown to a TimeSpan field. When you want to star counting down, call Start on a Timer and a Stopwatch. In the Tick event handler of the Timer, get the Elapsed of the Stopwatch and subtract that from the original time to get the time remaining as a TimeSpan. You can then format and display that. When that time remaining reaches zero, the countdown has expired.
Private countDownTime As TimeSpan
Private countDownWatch As Stopwatch
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
countDownTime = TimeSpan.FromMinutes(30)
countDownWatch = Stopwatch.StartNew()
Timer1.Start()
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
Dim timeRemaining = countDownTime - countDownWatch.Elapsed
If timeRemaining < TimeSpan.Zero Then
timeRemaining = TimeSpan.Zero
End If
Label1.Text = timeRemaining.ToString("hh\:mm\:ss")
If timeRemaining = TimeSpan.Zero Then
Timer1.Stop()
MessageBox.Show("Countdown complete")
End If
End Sub
That said, your specific issue is here:
Dim CountDownFrom As TimeSpan = TimeSpan.FromHours(Hours).FromMinutes(minutes).FromSeconds(seconds)
That does not do what you think it does. You're only getting the result of the FromSeconds call. If you want to create a TimeSpan with hours, minutes and seconds then call the appropriate constructor
Dim CountDownFrom As TimeSpan = New TimeSpan(Hours, minutes, seconds)
Of course, those arguments should be Integer values, not Strings. Turn Option Strict On and use the proper data types.
I have created a real time elapsed clock that synchronizes with the computer time and is being displayed in a Label.
Now, my doubt is how to display the clock in this Label in the "hh:mm:ss" format.
Private Sub Form2_Load(sender As Object, e As EventArgs) Handles Me.Load
ElapseStartTime = DateTime.Now
Timer1.Enabled = True
Timer1.Interval = 1000
Timer1.Start()
End Sub
Private Sub Timer1_Tick(sender As System.Object, e As System.EventArgs) Handles Timer1.Tick
Dim ElapsedTime = DateTime.Now.Subtract(ElapseStartTime)
LB_Timer.Text = String.Format("{0} : {1} : {2}", ElapsedTime.Hours, ElapsedTime.Minutes, ElapsedTime.Seconds)
End Sub
Thanks in advance!
Since DateTime.Subtract returns a TimeSpan structure, you can use the TimeSpan.ToString(Format) method to format the output string:
Private Sub Timer1_Tick(sender As System.Object, e As System.EventArgs) Handles Timer1.Tick
LB_Timer.Text = Date.Now.Subtract(ElapseStartTime).ToString("hh\:mm\:ss")
End Sub
When targeting a .Net Framework < FW 4.0, use the parameter-less, culture-insensitive TimeSpan.ToString() method.
LB_Timer.Text = Date.Now.Subtract(ElapseStartTime).ToString().Substring(0, 8)
From the Docs:
Support for formatting TimeSpan values was added in the .NET Framework
4. However, the ToString() method overload remains culture-insensitive. Its behavior remains unchanged from previous
versions of the .NET Framework.
just i found this could help! {0:d2}
LB_Timer.Text = String.Format("{0:d2}:{1:d2}:{2:d2}", ElapsedTime.Hours, ElapsedTime.Minutes, ElapsedTime.Seconds)
how do i set the starting time of the time interval, let's say i would like to start the 5 sec interval counting after 10 seconds. I'm having a problem with my logic can you help me with this? this is my code:
This is my timer in my Form1
Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick
If DateTime.Now = Form3.DateTimePicker1.Value Then
Timer2.Stop()
MsgBox("hey")
Timer2.Start()
End If
This is the OK button in my Form3
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Form1.Timer2.Interval = New TimeSpan(CInt(NumericUpDown3.Value), CInt(NumericUpDown2.Value), CInt(NumericUpDown1.Value)).TotalMilliseconds
Form1.Timer2.Start()
End If
It seems to work successfully with the intervals without setting the start of the interval, But if i add the start time of the interval, it doesn't seem to work. with this code If DateTime.Now = Form3.DateTimePicker1.Value Then what could be wrong?
This seems to be bad idea:
If DateTime.Now = Form3.DateTimePicker1.Value Then
Because it is extremely hard for you to catch the time exactly as you specify. Simply change = to >=
If DateTime.Now >= Form3.DateTimePicker1.Value Then
Then when you reach the time or later, you would show your message box.
I am trying to put a countdown timer insde my label in my program, but when I run the program it doesn't countdown. It skips right to one, and that's it.
Private Sub CompactTimer_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CompactTimer.Tick
Dim Time As Integer = 11
Do Until Time = 0
ClockLabel.Text = "Compacting database in: " & Time
Time -= 1
Loop
End Sub
I also have started the timer and declared the interval to 500 in the Form_Load routuine.
Get rid of the loop and declare the Time variable outside the scope.
Dim Time As Integer = 11
Private Sub CompactTimer_Tick(ByVal sender As Object, ByVal e As EventArgs) _
Handles CompactTimer.Tick
If Time >= 0 Then
ClockLabel.Text = "Compacting database in: " & Time
Time -= 1
Else
CompactTimer.Stop
End If
End Sub
make a static var ..
Private Sub CompactTimer_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CompactTimer.Tick
Static Time As Integer = 11
ClockLabel.Text = "Compacting database in: " & Time
Time -= 1
If Time = 0 Then CompactTimer.Stop
End Sub
The loop happens each time the timer ticks. You most likely want something like:
Dim time as Integer = 11 ' Declare outside
Private Sub CompactTimer_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CompactTimer.Tick
If Time = 0 Then
CompactTimer.Enabled = False ' Disable timer
ClockLabel.Text = "Compacting database now"
Else
ClockLabel.Text = "Compacting database in: " & time
time -= 1
End If
End Sub
If you want the code to show the actual amount of time then the code could look like this.
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
'start the count down
CompactTimer.Interval = 500
CompactTimer.Start()
stpw.Stop()
stpw.Reset()
stpw.Restart()
End Sub
Dim stpw As New Stopwatch
Dim countdown As New TimeSpan(0, 0, 11) 'length of countdown in seconds
Private Sub CompactTimer_Tick(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles CompactTimer.Tick
Dim togo As TimeSpan = countdown - stpw.Elapsed
If togo.TotalSeconds > 0 Then
ClockLabel.Text = String.Format("Compacting database in: {0} secs.", togo.TotalSeconds.ToString("n0"))
Else
CompactTimer.Stop()
End If
End Sub
Relying on the interval to mark the passing of time will result in inaccuracy.