C#•2y ago

❔ Protips to write thing like: raise Alarm when Time hits DateTime.Now

How can I achieve this? I know that I need to use events. DispatcherTimer as well?

2 Replies

Why would you want to wait until DateTime.Now? But if you want to wait until a certain time, you should look into DateTime and TimeSpan Easy to work with. DateTime is an instance of time and TimeSpan is a span of time, say a few seconds, hours or days. Task.Delay takes a TimeSpan and subtracting two DateTime objects returns a TimeSpan between the two Is this an example of what you want?

    public static async Task Main()
    {
        await WaitUntilNextMinuteStarts();
        Console.WriteLine("It is now the next minute");
    }

    public static async Task WaitUntilNextMinuteStarts()
    {
        var now = DateTime.Now;
        var goalTime = new DateTime(now.Year, now.Month, now.Day, now.Hour, now.Minute + 1, 0);
        await Task.Delay(goalTime - now);
    }

    public static async Task Main()
    {
        await WaitUntilNextMinuteStarts();
        Console.WriteLine("It is now the next minute");
    }

    public static async Task WaitUntilNextMinuteStarts()
    {
        var now = DateTime.Now;
        var goalTime = new DateTime(now.Year, now.Month, now.Day, now.Hour, now.Minute + 1, 0);
        await Task.Delay(goalTime - now);
    }

A Timer would repeat itself unless you set the period to an infinite time span

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ Protips to write thing like: raise Alarm when Time hits DateTime.Now