Solved

Confused Need Help With Code

Posted on 2006-11-04
9
229 Views
Last Modified: 2010-04-16
HI,
I am using the following code to have a form fade out to zero percent opacity, then fade right back into 100 Opacity when a button is pushed.  

I cant seem to shut it off after it fades back to 100 opactiy?

Also I need to change the form size to 200 by 200 using this code when the form is at 0 opacity

this.Size = new Size(200, 200);

But I am not sure where to put insert the code?


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
           
        }
       // private String imgName;
        private DateTime dt;
        private Timer t;
        private bool fadeOut = true;

        private void Form1_Load(object sender, EventArgs e)
        {
           
        }
     
        void t_Tick(object sender, EventArgs e)
        {
            TimeSpan ts = dt.Subtract(DateTime.Now);
            if (ts.TotalSeconds > 0)
            {
                if (fadeOut)
                {
                    if (this.Opacity > .0)
                    {
                        this.Opacity -= .01;
                    }
                    else
                    {
                        fadeOut = !fadeOut;
                    }
                }
                else
                {
                    if (this.Opacity < 1.0)
                    {
                        this.Opacity += .01;
                    }
                    else
                    {
                        fadeOut = !fadeOut;
                    }
                }
            }
            else
            {
                t.Stop();
                //this.Close(); // optional
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            dt = DateTime.Now.AddSeconds(100);
            t = new Timer();
            t.Tick += new EventHandler(t_Tick);
            t.Interval = 100;
            t.Start();
        }

    }
}
0
Comment
Question by:schenkp
  • 5
  • 4
9 Comments
 
LVL 3

Expert Comment

by:lizard450
ID: 17874669
I think this is what you want... ???  i'm failing to see why you need a timer... can you explain?


private bool falseIsDown = true;
        private void button1_Click(object sender, EventArgs e)
        {
            doFade();
        }

        private void doFade()
        {
            falseIsDown = !falseIsDown;
            double incrementAmount = .01;
            if(!falseIsDown)
            {
                incrementAmount = incrementAmount*-1;
            }
            double loopTimes = Math.Abs(1/incrementAmount);
            for (double a = loopTimes; a >= 0;a--)
                this.Opacity += incrementAmount;
            this.Size = new Size(200, 200);
        }

        void Form1_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
        {
            doFade();
        }
0
 
LVL 3

Expert Comment

by:lizard450
ID: 17874680
of course don't forget to add   this.KeyPress += new System.Windows.Forms.KeyPressEventHandler(Form1_KeyPress);
     to the initializecomponents thing
0
 

Author Comment

by:schenkp
ID: 17874685
It fades nice but how about having it come right back to 100% Opacity?
0
Active Directory Webinar

We all know we need to protect and secure our privileges, but where to start? Join Experts Exchange and ManageEngine on Tuesday, April 11, 2017 10:00 AM PDT to learn how to track and secure privileged users in Active Directory.

 

Author Comment

by:schenkp
ID: 17874689
I would like it to fade then come right back just by clicking the button?
0
 
LVL 3

Expert Comment

by:lizard450
ID: 17874692
Meh... just thought id clean the code up a bit...

private int falseIsDown = 1;
        private void doFade()
        {
            falseIsDown = falseIsDown*-1;
            double incrementAmount = .01*falseIsDown;
            double loopTimes = Math.Abs(1/incrementAmount);
            for (double a = loopTimes; a >= 0;a--)
                this.Opacity += incrementAmount;
            this.Size = new Size(200, 200);
        }

        void Form1_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
        {
            doFade();
        }
0
 

Author Comment

by:schenkp
ID: 17874694
Can you have it come right back to 100 opacity?
0
 
LVL 3

Accepted Solution

by:
lizard450 earned 500 total points
ID: 17874696
private void doFade()
        {
            int TimetoWait = 1000;
            int flipInt = -1;
            double incrementAmount = .01*flipInt;
            double loopTimes = Math.Abs(1/incrementAmount);
            for (double a = loopTimes; a >= 0;a--)
                this.Opacity += incrementAmount;
            this.Size = new Size(200, 200);
            Thread.Sleep(TimetoWait);
            incrementAmount = incrementAmount*flipInt;
            for (double a = loopTimes; a >= 0; a--)
                this.Opacity += incrementAmount;          
           
        }
0
 

Author Comment

by:schenkp
ID: 17874703
SWEET....

Thanks Bro
0
 
LVL 3

Expert Comment

by:lizard450
ID: 17874705
no prob
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article introduced a TextBox that supports transparent background.   Introduction TextBox is the most widely used control component in GUI design. Most GUI controls do not support transparent background and more or less do not have the…
Exception Handling is in the core of any application that is able to dignify its name. In this article, I'll guide you through the process of writing a DRY (Don't Repeat Yourself) Exception Handling mechanism, using Aspect Oriented Programming.
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…
In an interesting question (https://www.experts-exchange.com/questions/29008360/) here at Experts Exchange, a member asked how to split a single image into multiple images. The primary usage for this is to place many photographs on a flatbed scanner…

830 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question