Transitions form in c#

Question

2.50/5 (2 votes)

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how can I make form1()be transitions (like transitions of slide in powerpoint) when the form1 transition to form2 and when the form1 in the first running this is kind of moving form put I want other like shape,cover (in powerpoint)

C#

public main()
{
   InitializeComponent();
}

private bool go;
private int dx = 1;
private void main_Load(object sender, EventArgs e)
{
   \ 
}
        
protected override void OnPaint(PaintEventArgs e)
{
   if (go)
   {
      this.Location = new Point(this.Location.X + dx, this.Location.Y);
      if (Location.X < 10 || Location.X > 1400)
      {
         go = false;
         dx = -dx;
      }
      else
      {
         this.Invalidate();
      }
   }
}
       
private void button1_Click(object sender, EventArgs e)
{
   go = true;
   this.Invalidate();
}

Posted 17-Apr-15 7:18am

neveen neveen

Updated 18-Apr-15 12:05pm

Nelek

v4

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Comments

hotthoughtguy 17-Apr-15 13:43pm

your description is not clear. please explain in detail and clarification required... :)

neveen neveen 17-Apr-15 13:57pm

I have two form form1 and form2 I want when run my project form1 not show in traditional way I want it show with moving like the transitions slide in powerpoint shape,cover ...

BillWoodruff 17-Apr-15 14:17pm

You do not want to use the Paint Event this way. Instead create a Timer, and move the Forms with the Timer.

neveen neveen 17-Apr-15 14:22pm

how ???

gggustafson 17-Apr-15 15:39pm

Using invalidate within OnPaint is a sure way to have problems. It's like recursion. Remove this.Invalidate. If the button click event triggers the OnPaint then the go variable is unnecessary and should be removed. So far as transitioning from one form to the next, you are not showing the code that you use. Please use Improve Question to show that.

neveen neveen 17-Apr-15 16:58pm

this code is just moving the form to the right I want other Movements to the form when it run

Sergey Alexandrovich Kryukov 17-Apr-15 17:05pm

gggustafson is right. No if no buts. And no "just". OnPaint renders data graphically, and some other method, always in the UI thread (other thread must use Invoke/BeginInvoke which ultimately calls the action on the UI thread) changes that data and triggers graphical "refresh" using Control.Invalidate, which case re-painting all the scene or part of it. That's all, basically.
—SA

neveen neveen 17-Apr-15 17:18pm

Sergey Alexandrovich Kryukov ,gggustafson,my problem is not in this code this code is run correctly.,I Need other movement to the form when it run like the transitions of slide in powerpoint.

Sergey Alexandrovich Kryukov 17-Apr-15 17:55pm

No, it won't run correctly. If it works somehow for a while, it cannot impress me. It's totally wrong, period. You need to explain what is "other movement" or whatever it is.
—SA

gggustafson 18-Apr-15 10:02am

Have you made the modifications that I recommended?

2 solutions

Solution 2

Please see my comment to the question.

To do some changes in the graphics, you can use a timer, but I would not advise it; it's much simpler to use the thread changing the data in cycles, with some delay; you can check up real time at the moment is rendering, using System.Diagnostics.StopWatch. Even if you use a timer, never use System.Windows.Forms.Timer for anything which is supposed to look periodic: the accuracy of this timer is too bad for such effects. Use other timer types. But with other timers, exactly as with threads, you will need to solve the UI thread invocation problem. You cannot call anything related to UI from non-UI thread. Instead, you need to use the method Invoke or BeginInvoke of System.Windows.Threading.Dispatcher (for both Forms or WPF) or System.Windows.Forms.Control (Forms only).

You will find detailed explanation of how it works and code samples in my past answers:
Control.Invoke() vs. Control.BeginInvoke(),
Problem with Treeview Scanner And MD5.

See also more references on threading:
How to get a keydown event to operate on a different thread in vb.net,
Control events not firing after enable disable + multithreading.

This is not hard to do, but timers involves other risks, so, overall, a separate thread is much safer and easier.

For explanation of graphics rendering and invalidation approaches, in particular, with a separate thread (or a timer, for that matter), please see my past answers:
What kind of playful method is Paint? (DataGridViewImageCell.Paint(...)),
How to speed up my vb.net application?,
Zoom image in C# .net mouse wheel,
capture the drawing on a panel,
Drawing Lines between mdi child forms.

—SA

Posted 17-Apr-15 11:15am

Sergey Alexandrovich Kryukov

Comments

neveen neveen 17-Apr-15 17:29pm

Sergey Alexandrovich ,what all this please understand me when run windows form is show the form in the traditional way, I need different show to this form

Sergey Alexandrovich Kryukov 17-Apr-15 17:53pm

Not clear. What am I supposed to understand? You use OnPaint. We explained you why you are doing it wrong and I explained how to deal with painting.
Forget "traditional" and "not traditional" ways, it means nothing. If you need something different, please explain, but I tell you: just understanding how to paint is enough. If you don't need paint, don't ask about it, ask about something else. And if you did not understand the answer, ask your follow-up questions.
—SA

BillWoodruff 18-Apr-15 7:48am

Voted #1: a collage of off-topic, and needlessly confusing verbiage and links.

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BillWoodruff · Accepted Answer · 2015-04-18T02:00:00

edit:

Here's a sample project in WinForms C# that shows animating a bunch of Forms using a System.Timers.Timer: [^]. The source is included. It was written in Visual Studio 2013, using FrameWork 4.5.

Use Alt-M to start the animation and Alt-N to turn it off, or click back on the Main Form to turn off animation.

end edit

First, there's nothing wrong with being a beginner with programming in C#, using Windows Forms (or WPF, or any other technology stack): we were all beginners once :)

However, it's clear to me you are quite confused about C# and Windows Forms programming at this point in time. I suggest you get a good book and review the basics.

For animation in Windows Forms there is an excellent resource here on CodeProject you can download the code, study, and learn, from: [^].

For animations effects of a simple nature, like moving a Form, there is nothing wrong with using a Timer: but, depending on the content of what object you are moving, and how fast you move it, etc., you may observe a little stutter ... depending on your computer's CPU/Graphics card, monitor resolution, memory, etc.

If you have a Windows Form with a complex raster (bit-map) background, and internal Controls that have their own raster backgrounds, and you are varying the Opacity setting of the Form while you move it with a Timer: even if you set the Form's 'DoubleBuffer Property to 'true, you may see visually poor results in the animation.

In general, Windows Forms is not a good vehicle for any kind of smooth animation; for that you should consider WPF, or even a game-engine, like XNA.