Question

I am using wpf DispatcherTimer and I want ot use it into the for loop how i can use it..

my code is here..

        DispatcherTimer timer = new DispatcherTimer();

        timer.Tick += (s, e) =>
        {
            for (i = 0; i < 10; i++)
            {
                obsValue.Add(new Entities(i));
                timer.Interval = TimeSpan.FromSeconds(30);
                timer.Start();
            }
        };

Thanks….

Answer 1

When you start a timer with Interval set to 30 seconds, its Tick event will be raised every 30 seconds.

Now, what I understand from your question is you want to add a record every 30 seconds.

Here is what you can do. Note that it does not require a for loop but you still need to maintain current index. To do that, you can use a private field or a local variable with lambda.

Example:

    DispatcherTimer timer = new DispatcherTimer();
    timer.Interval = TimeSpan.FromSeconds(30);
    
    Int32 index = 0, maxValue = 10;

    timer.Tick += (s, e) =>
    {                
        obsValue.Add(new Entities(index));
        index ++; // increment index

        // Stop if this event has been raised max number of times
        if(index > maxValue) timer.Stop();
    };

    timer.Start();