How to make conditional run?

Raysefo

Hi,

I have a windows form app as follows. I would like to make conditional transactions according to current time.Lets say if time is 11 and minute is between 10 and 15 then do this else do other thing on run time. How can I do it?

Best Regards.

Here is my sample code:

 [STAThread]         static void Main()         {             DateTime td = DateTime.Now;             int hour = td.Hour;             int min = td.Minute;             Application.EnableVisualStyles();             Application.SetCompatibleTextRenderingDefault(false);               if (hour >= 11 && hour < 12 && min >= 10 && min < 15)             {                 Application.Run(new Form1(hour, min));             }             else             {                 Application.Run(new Form1());             }         }

8 Replies

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Vulpes14y ago
Accepted answer
Not directly - most folks would probably just check the time every minute, say.

However, you could do this:

private Form1_Load(object sender, EventArgs e)
{
DateTime td = DateTime.Now;
int hour = td.Hour;
int min = td.Minute;
if (hour >= 11 && hour < 12 && min >= 0 && min < 10)
{
timer1.Interval = 1; // fires almost immediately
}
else if (hour < 11)
{
DateTime dtElevenToday = DateTime.Today.AddHours(11).AddMinutes(5); // fires at 11.05 today
timer1.Interval = (int)(dtElevenToday - td).TotalMilliseconds;
}
else
{
DateTime dtElevenTomorrow = DateTime.Today.AddHours(35).AddMinutes(5); // fires at 11.05 tomorrow
timer1.Interval = (int)(dtElevenTomorrow - td).TotalMilliseconds;
}

timer1.Start();
}

private timer1_Tick(object sender, EventArgs e)
{
timer1.Interval = (int)TimeSpan.FromHours(24).TotalMilliseconds; // next fires in 24 hours
// rest of code
}

Notice that the accuracy of the System.Windows.Forms.Timer leaves something to be desired but, if you set it to fire at 11.05, it should certainly remain within the desired interval even if the program is running continuously for a number of days.

If the program is running 'for ever', it might be a good idea to recalibrate it each time it fires.
Raysefo14y ago
Hi,

as soon as I enabled the timer , It worked !

Thanks.
Vulpes14y ago
Well, the idea of the code is to check the time whilst the opening form is loading and, if it's within the required period, fire the timer's Tick event immediately by setting its Interval property to 1 millisecond - the smallest allowed.

If it's outside the required period, the Interval property is set instead to whatever is needed so it will fire on the next 11:05 (or whatever).

The Interval is then reset to 24 hours in the timer1_Tick eventhandler itself so it will fire daily in future.

If this isn't doing what you need, then can you explain please what it is that you do need.

Raysefo14y ago

Hi Vulpes,

It does NOT helping me to trigger the tick event after the application is running.

Here is my main:

[STAThread]         static void Main()         {                          Application.EnableVisualStyles();             Application.SetCompatibleTextRenderingDefault(false);                            Application.Run(new Form1());         }

And Here is Form_Load:

public Form1()         {             InitializeComponent();               this.ShowInTaskbar = false;             this.Refresh();             Hook.CreateHook(KeyReaderr);             writeUp = "";         }           private void Form1_Load(object sender, EventArgs e)         {             DateTime td = DateTime.Now;             int hour = td.Hour;             int min = td.Minute;             if (hour >= 14 && hour < 15 && min >= 43 && min < 44)             {                 timer1.Interval = 1; // fires almost immediately             }             else if (hour < 14)             {                 DateTime dtElevenToday = DateTime.Today.AddHours(11).AddMinutes(5); // fires at 11.05 today                 timer1.Interval = (int)(dtElevenToday - td).TotalMilliseconds;             }             else             {                 DateTime dtElevenTomorrow = DateTime.Today.AddHours(35).AddMinutes(5); // fires at 11.05 tomorrow                 timer1.Interval = (int)(dtElevenTomorrow - td).TotalMilliseconds;             }               timer1.Start();         }           private void timer1_Tick(object sender, EventArgs e)         {             timer1.Interval = (int)TimeSpan.FromHours(24).TotalMilliseconds; // next fires in 24 hours             // rest of code             Hook.DestroyHook();             writeUp = "";             CreateZipFile(@"S:\logs\", "LOG_" + name + ".zip", @"S:\logs\log_" + name + ".txt");             File.Delete(@"S:\logs\log_" + name + ".txt");         }

Raysefo14y ago
Hi,

Thanks for your help.I wonder is there a way to set this Timer for a specific time interval? I mean everyday between 23:00 and 23:10.

Best Regards.
Vulpes14y ago
If you mean that you want to do the conditional transaction after the opening form has been displayed, then you'll need to add a timer to your application which checks the time at appropriate intervals and, if it's within the interval you want, does something from its Tick eventhandler.
Raysefo14y ago
But the problem is when application is running, It does NOT do the conditional transaction. I mean do I need something to trigger it while the application is running?
Vulpes14y ago
It seems to me that you've virtually done it already :)

All you need to do is to add an extra constructor to Form1 which takes two int parameters: hour and minute, save them to fields on the form and you're there.