I need to change the position of a window on mouse click.
here is the code.
private void Button_Click(object sender, RoutedEventArgs e)
{
for(int i=0; i<50; i++)
{
this.Top -= i;
this.Left -= i;
}
}
But whenever i run this program only the last position is shown. My intention is to move it continuosly till the end of loop.
Finally i found the answer myself. It s working perfectly as i expected. I used SynchronizationContext which can post Actions to update controls on UI thread.
public partial class Splash : Window
{
SynchronizationContext sc;
System.Timers.Timer t;
double i=0;
double tempTop;
double angle = 0;
public Splash()
{
InitializeComponent();
sc=SynchronizationContext.Current;
}
private void Move(object sender, MouseEventArgs e)
{
DragMove();
}
private void btnClose_Click(object sender, RoutedEventArgs e)
{
Application.Current.Shutdown();
}
private void btnMinim_Click(object sender, RoutedEventArgs e)
{
this.WindowState = WindowState.Minimized;
}
private void Button_Click(object sender, RoutedEventArgs e)
{
l1.Content = "Helicopter Moving";
if(t!=null)
{
t.Stop();
t.Dispose();
}
//for (double i = 0; i < 1; i += 0.05)
//{
// this.Top -= i;
// this.Left -= i;
// Thread.Sleep(100);
//}
//l1.Content = "Helicopter Stopped";
tempTop = this.Top;
t = new System.Timers.Timer();
t.Interval = 10;
t.Enabled = true;
t.Elapsed += Change;
t.Start();
}
void Change(object sender, EventArgs e)
{
if (i <= 3)
{
sc.Post(o =>
{
this.Top = tempTop * (Math.Cos(Math.PI * angle / 180));
this.Left -= i;
angle = (angle >= 360) ? 0 : ++angle;
i = i + 0.01;
}, null);
}
else
{
t.Stop();
i = i * -1;
}
}
}
}
Try this should work Thread.Sleep will not work for you as its a UI thread. You need timer to make this work
Timer t;
private void Button_Click(object sender, RoutedEventArgs e)
{
i=0;
if(t!=null)
{
t.Stop();
t.Dispose();
}
t = new Timer();
t.Interval = 800;
t.Enabled = true;
t.Tick += T_Tick;
t.Start();
}
int i=0;
private static void T_Tick(object sender, EventArgs e)
{
if(i<=50)
{
this.Top -= i;
this.Left -= i;
i++;
}
else
t.Stop();
}
Just start an animation when your click event triggers. You can define how long should the animation last.
Basic benefit of using animations instead of doing calculations manually is animations being run in separated thread, so you don't loose application's responsiveness.
What is more, you can edit your animations in separated tools, such as Blend without the need to verifying animations in runtime.
Few sources:
http://www.wpf-tutorial.com/styles/trigger-animations-enteractions-exitactions/
http://dotnetslackers.com/articles/wpf/IntroductionToWPFAnimations.aspx
http://www.wpftutorial.net/Animation.html
Related
Im trying to get a smooth expanding and collapsing animation for my form. My current animation is really jittery and non consistent. Heres a Gif of the Animation. Is there another way to do this that doesnt freeze the form?
private void ShowHideToggle_CheckStateChanged(object sender, EventArgs e)
{
if (ShowHideToggle.Checked) //checked = expand form
{
ShowHideToggle.Text = "<";
while (Width < originalWidth)
{
Width++;
Application.DoEvents();
}
}
else
{
ShowHideToggle.Text = ">";
while(Width > 24)
{
Width--;
Application.DoEvents();
}
}
}
Create a Timer:
Timer t = new Timer();
t.Interval = 14;
t.Tick += delegate
{
if (ShowHideToggle.Checked)
{
if (this.Width > 30) // Set Form.MinimumSize to this otherwise the Timer will keep going, so it will permanently try to decrease the size.
this.Width -= 10;
else
t.Stop();
}
else
{
if (this.Width < 300)
this.Width += 10;
else
t.Stop();
}
};
And change your code to:
private void ShowHideToggle_CheckStateChanged(object sender, EventArgs e)
{
t.Start();
}
I want to run a progress bar on a form through the use of a timer.
I have tried multiple ways and have not been able to get it to work.
I hope someone here can help me with this.
private void SplashScreen_Load(object sender, EventArgs e)
{
splashScreenTimer.Enabled = true;
splashScreenTimer.Start();
splashScreenTimer.Interval = 1000;
progressBar.Maximum = 100;
splashScreenTimer.Tick += new EventHandler(timer1_Tick);
}
private void timer_Tick(object sender, EventArgs e)
{
if (progressBar.Value != 10)
{
progressBar.Value++;
}
else
{
splashScreenTimer.Stop();
}
}
you are assigning event_handler like
splashScreenTimer.Tick += new EventHandler(timer1_Tick);
and you are changing the progressBar value in
private void timer_Tick(object sender, EventArgs e)
{
if (progressBar.Value != 10)
{
progressBar.Value++;
}
else
{
splashScreenTimer.Stop();
}
}
change event handler to
splashScreenTimer.Tick += new EventHandler(timer_Tick);
or move codes to the other event handler timer1_Tick which should be in your form
For running the progressBar full in 4 seconds you can do like this
private void Form1_Load(object sender, EventArgs e)
{
splashScreenTimer.Enabled = true;
splashScreenTimer.Start();
splashScreenTimer.Interval = 30;
progressBar.Maximum = 100;
splashScreenTimer.Tick += new EventHandler(timer_Tick);
}
int waitingTime = 0;
private void timer_Tick(object sender, EventArgs e)
{
if (progressBar.Value < 100)
{
progressBar.Value++;
}
else
{
if (waitingTime++ > 35)
this.Close();
}
}
I am working on a simple mediaplayer application. It works great but I want to add some extra features. I have added a trackbar control.How can i set trackbar length the same as the music's length ?
Like if the song is halfways the trackbars halfways.This is what I have so far
string[] files, indexed_files;
private void button3_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Multiselect = true;
if (ofd.ShowDialog() == DialogResult.OK) {
files = ofd.SafeFileNames;
indexed_files = ofd.FileNames;
for (int i = 0; i < files.Length; i++)
{
listBox1.Items.Add(files[i]);
}
}
button4.Enabled = true;
}
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
axWindowsMediaPlayer1.URL = indexed_files[listBox1.SelectedIndex];
progressBar1.Maximum =(int) axWindowsMediaPlayer1.currentMedia.duration;
axWindowsMediaPlayer1.PlayStateChange += axWindowsMediaPlayer1_PlayStateChange;
}
void axWindowsMediaPlayer1_PlayStateChange(object sender, AxWMPLib._WMPOCXEvents_PlayStateChangeEvent e)
{
trackBar1.Value = (int)axWindowsMediaPlayer1.Ctlcontrols.currentPosition;
}
int index = 0;
private void button4_Click(object sender, EventArgs e)
{
if (listBox1.Items.Count != 0) {
axWindowsMediaPlayer1.URL = indexed_files[index];
trackBar1.Maximum = (int)axWindowsMediaPlayer1.currentMedia.duration;
index++;
index = (index % listBox1.Items.Count);
}
}
This will bring you the desired outcome.In my example i just placed the url in the form load for demonstration purposes.The openstatechanged event its to set the trackbar maximum since you need to wait for the player to load the file,after that the code its pretty self-explanatory:
public partial class Form1 : Form
{
Timer t;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
axWindowsMediaPlayer1.URL = "YourUrlHere";
t = new Timer();
t.Interval = 1000;
t.Tick += new EventHandler(t_Tick);
}
void t_Tick(object sender, EventArgs e)
{
trackBar1.Value = (int)this.axWindowsMediaPlayer1.Ctlcontrols.currentPosition;
}
private void axWindowsMediaPlayer1_OpenStateChange(object sender, AxWMPLib._WMPOCXEvents_OpenStateChangeEvent e)
{
if (axWindowsMediaPlayer1.openState == WMPLib.WMPOpenState.wmposMediaOpen)
{
trackBar1.Maximum = (int)axWindowsMediaPlayer1.currentMedia.duration;
t.Start();
}
}
}
Yes its a timer:),and probably it is best to set it bellow 1000 for reasons of delay.
So you should now add a timer and insert the following code in timer Tick event handler:
trackbar.Value = this.axWindowsMediaPlayer1.ctlControls.CurrentPosition;
Ok, i have a closing event on my form. The code inside it fades the form out, then opens the other form. Is there a way i can wait until the fade is done? Here is my code:
private void form1_closing(object sender, FormClosingEventArgs e)
{
if (this.Opacity > 0.01f)
{
e.Cancel = true;
timer1.Interval = 47;
timer1.Enabled = true;
timer1.Start();
}
else
{
timer1.Enabled = false;
}
}
private void timer2_Tick(object sender, EventArgs e)
{
progressBar1.Increment(+1);
label4.Text = progressBar1.Value.ToString() + "%";
if (progressBar1.Value == 100)
{
progressBar1.Value = 100;
timer2.Stop();
this.Close();
Form2 frm2 = new Form2();
frm2.Show();
}
}
Basically, form2 is opening early, i want it to wait after the fade effect is done. :)
this code should do, I guess.
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
for (double i = 1.0; i > 0.0; i-=0.01)
{
this.Opacity = i;
Thread.Sleep(10);
}
//Handle whatever you want to do here. The control comes here only when the form is faded out.
}
Code :
void Wait(int Milliseconds)
{
Stopwatch sw = new Stopwatch();
sw.Start();
while(sw.ElapsedMillisecods < Millisecods)
{
Application.DoEvents();
}
sw.Stop();
}
Here is a Wait function and you can use it if you can calculate the total time taken during fading like this :
Wait(Time)
I want to load an small image into a WinForms pictureBox control and then animate it moving to the other side of the form.
I've loaded image and used a timer to move the image, but when I run it the application just shows the final position of the pictureBox and its image.
How I can show image smoothly transition to the final location?
Here is my code so far:
public partial class Form1 : Form
{
private int counter = 0;
void timer_Tick(object sender, EventArgs e)
{
counter++;
if (counter == 1)
{
pictureBox1.Show();
timer1.Stop();
counter = 0;
}
}
public Form1()
{
InitializeComponent();
timer1.Interval = 10;
timer1.Tick += new EventHandler(timer_Tick);
}
private void button1_Click(object sender, EventArgs e)
{
while(i<=100){
int x = pictureBox1.Location.X;
int y = pictureBox1.Location.Y;
pictureBox1.Location = new Point(x+25, y);
timer1.Start();
}
}
}
Does this work? Sorry, I can't test it where I am right now (on netbook without VS).
public partial class Form1 : Form
{
void timer_Tick(object sender, EventArgs e)
{
int x = pictureBox1.Location.X;
int y = pictureBox1.Location.Y;
pictureBox1.Location = new Point(x+25, y);
if (x > this.Width)
timer1.Stop();
}
public Form1()
{
InitializeComponent();
timer1.Interval = 10;
timer1.Tick += new EventHandler(timer_Tick);
}
private void button1_Click(object sender, EventArgs e)
{
pictureBox1.Show();
timer1.Start();
}
}