Member Avatar for GAME

Hello,

Right now I have like 11 forms on my program. When I debug my program, my program keeps loading every 1 second (with the timer and the mouse). All the mouse icons are default. Is there any way to make a program faster?

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Dani AI

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Short, practical checklist that addresses the slow-form symptom described by and the ideas raised by and .

If the UI is doing network calls, WebBrowser navigation, or other heavy work while the form is being constructed or while a Timer tick runs, that work blocks the UI thread. Two effective patterns: show the form immediately, then initialize heavy pieces off the UI thread; and guard initialization so it only runs once (logic bugs that retrigger init are a very common cause).

Example pattern — show immediately, then load in background:

private bool _initialized;
private HeavyForm _heavyForm;

private void btnOpen_Click(object sender, EventArgs e)
{
    if (_heavyForm == null) _heavyForm = new HeavyForm();
    _heavyForm.Show();

    if (_initialized) return;
    _initialized = true;

    Task.Run(() =>
    {
        var result = DoHeavyWork(); // network, parsing, etc.
        _heavyForm.BeginInvoke((Action)(() => _heavyForm.Populate(result)));
    });
}

Timer and WebBrowser notes: use a non-UI timer or background tasks for periodic work; avoid placing web requests or parsing directly in a System.Windows.Forms.Timer tick. Create or reuse a single WebBrowser instance instead of repeatedly constructing it. Always unsubscribe timers and event handlers when a form closes to prevent repeated activity and leaks. Avoid Application.DoEvents() except as a last resort — it causes reentrancy bugs.

Quick diagnostics: measure startup steps with Stopwatch, watch CPU/threads/handles in Task Manager or Process Explorer, and run a profiler (Visual Studio, dotTrace, ANTS) to find hotspots. If the problem was a repeated init (an if or event firing repeatedly), a simple guard flag or stopping the timer at the start of the handler will usually fix it.

Recommended Answers

All 8 Replies

Member Avatar for Radical Edward

It's easy to write slow applications with WinForms, but there are general applicable tips for keeping things snappy. Anything more specific depends on how your forms are set up and what they do.

commented: beaten. +10
Member Avatar for GAME

What I wanted to do was, click the button that brings the form up. Then let the form fully load before showing it.

Member Avatar for kvprajapati

Hello,

Right now I have like 11 forms on my program. When I debug my program, my program keeps loading every 1 second (with the timer and the mouse). All the mouse icons are default. Is there any way to make a program faster?

Can you describe more accurately what you are trying to do, because when dealing with many forms didn't affect the application performance.

Read following articles:

1. Practical Tips For Boosting The Performance Of Windows Forms Apps.
2.

Member Avatar for GAME

Well, On form1(Main form) I load A chat box(webbrowser) and news(webrequest) also a splashscreen. Most of the other forms just have the basic GUI with little coding. But one form has lots of coding(Webbrowser bot)

Member Avatar for Radical Edward

Consider the perceived performance as well. It does not really matter how slow your application really is as long as the user perceives it to be responsive. For example, clicking a button and waiting 1+ seconds for a form to appear is generally perceived as slow. Showing the form immediately and taking those seconds to load the form with hourglasses and progress bars in a well thought out way is generally perceived as fast. The time it takes might be identical, but the user has a different experience.

Member Avatar for GAME

So what are you suggesting?

Member Avatar for Radical Edward

Not much, because optimizing a WinForms application late on a Friday night of drinking based on very vague descriptions is just a little too far beyond Edward's abilities right now. You should read the links that have been given, do some of your own research on WinForm design, and try to optimize your app.

A specific question is easier to answer. "My app is slow, how do I make it not slow" is much harder to answer, if it's possible at all.

Member Avatar for GAME

Good News, I was playing around with if statement and now my forms are fine. Thank You guys for your time.

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