Here I have a list[N] of images, two picturebox, from time to time shows the next image，like the auto play album, and the interval time should be different, anybody can help:) thanks a lot
try
{
for (int index = 0; index < list.Count; index++)
{
aTimer = new System.Timers.Timer(10000);
aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
aTimer.Interval = Convert.ToInt64(arrTime[index]);
aTimer.Enabled = true;
pictureBox1.Image = list[index];
pictureBox2.Image = list[index+1];
}
}
catch
{
MessageBox.Show(e.ToString());
}
and what to do with the Timer_Tick(){}...
If you want the two PictureBoxes to change at the same time, then do something like:
public partial class Form1 : Form
{
private Random R = new Random();
private IEnumerator<Image> images;
private List<Image> list = new List<Image>();
private System.Windows.Forms.Timer aTimer = new System.Windows.Forms.Timer();
public Form1()
{
InitializeComponent();
this.Load += Form1_Load;
}
private void Form1_Load(object sender, EventArgs e)
{
// ...populate "list" somehow ...
String PicturesPath = Environment.GetFolderPath(Environment.SpecialFolder.MyPictures);
foreach(String PictureFile in System.IO.Directory.GetFiles(PicturesPath, #"*.png"))
{
list.Add(new Bitmap(PictureFile));
}
aTimer.Interval = R.Next(3000, 10001); // 3 to 10 second interval
aTimer.Tick += aTimer_Tick;
aTimer.Start();
ChangeImages();
}
private void ChangeImages()
{
pictureBox1.Image = NextImage();
pictureBox2.Image = NextImage();
}
private Image NextImage()
{
if (images == null && list.Count > 0)
{
images = list.GetEnumerator();
}
if (images != null)
{
if (!images.MoveNext())
{
images.Reset();
images.MoveNext();
}
return images.Current;
}
else
{
return null;
}
}
private void aTimer_Tick(object sender, EventArgs e)
{
// change the Interval:
aTimer.Interval = R.Next(3000, 10001); // 3 to 10 second interval
ChangeImages();
}
}
If you want the two PictureBoxes to change independently, then use two Timers and change them separately:
public partial class Form1 : Form
{
private Random R = new Random();
private IEnumerator<Image> images;
private List<Image> list = new List<Image>();
private System.Windows.Forms.Timer aTimer1 = new System.Windows.Forms.Timer();
private System.Windows.Forms.Timer aTimer2 = new System.Windows.Forms.Timer();
public Form1()
{
InitializeComponent();
this.Load += Form1_Load;
}
private void Form1_Load(object sender, EventArgs e)
{
// ...populate "list" somehow ...
String PicturesPath = Environment.GetFolderPath(Environment.SpecialFolder.MyPictures);
foreach(String PictureFile in System.IO.Directory.GetFiles(PicturesPath, #"*.png"))
{
list.Add(new Bitmap(PictureFile));
}
aTimer1.Interval = R.Next(3000, 10001); // 3 to 10 second interval
aTimer1.Tick += aTimer1_Tick;
aTimer1.Start();
aTimer2.Interval = R.Next(3000, 10001); // 3 to 10 second interval
aTimer2.Tick += aTimer2_Tick;
aTimer2.Start();
pictureBox1.Image = NextImage();
pictureBox2.Image = NextImage();
}
private Image NextImage()
{
if (images == null && list.Count > 0)
{
images = list.GetEnumerator();
}
if (images != null)
{
if (!images.MoveNext())
{
images.Reset();
images.MoveNext();
}
return images.Current;
}
else
{
return null;
}
}
private void aTimer1_Tick(object sender, EventArgs e)
{
// change the Interval:
aTimer1.Interval = R.Next(3000, 10001); // 3 to 10 second interval
pictureBox1.Image = NextImage();
}
private void aTimer2_Tick(object sender, EventArgs e)
{
// change the Interval:
aTimer2.Interval = R.Next(3000, 10001); // 3 to 10 second interval
pictureBox2.Image = NextImage();
}
}
try
{
for (int index = 0; index < fileNum / 2 - 1; index++)
{
aTimer = new System.Timers.Timer(10000);
aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
aTimer.Interval = Convert.ToInt64(arrTime[index]);
aTimer.Enabled = true;
pictureBox1.Image = list[index];
pictureBox2.Image = list[index+1];
}
}
catch
{
MessageBox.Show(e.ToString());
}
Related
I am using the events ItemSelectionChanged and SelectedIndexChanged of the ListView class to answer this question.
The code is below, and the only bug that seems to remain is that I use the 250ms timer also when the user uses rubberband selection, not only for single or double click selection.
internal Form1()
{
InitializeComponent();
t.Tick += T_Tick;
}
internal bool santinela = false;
internal void T_Tick(object sender, EventArgs e)
{
t.Stop();
if (!santinela)
{
bool newVal = selectionChangedItem.Selected;
selectionChangedItem.Checked =
selectionChangedItem.Selected = newVal;
santinela = true;
}
}
internal Timer t = new Timer()
{
Interval = 250
};
internal bool santinela3 = true;
internal void listView1_ItemCheck(object sender, ItemCheckEventArgs e)
{
if (santinela3)
{
if (e.CurrentValue == CheckState.Checked)
{
listView1.SelectedIndices.Remove(e.Index);
}
else if (e.CurrentValue == CheckState.Unchecked)
{
listView1.SelectedIndices.Add(e.Index);
}
}
}
internal void listView1_ItemActivate(object sender, EventArgs e)
{
if (listView1.SelectedItems.Count > 0)
{
MessageBox.Show(listView1.SelectedItems[0].Text);
}
}
internal ListViewItem selectionChangedItem = null;
internal bool santinela2 = true;
internal void listView1_ItemSelectionChanged(object sender, ListViewItemSelectionChangedEventArgs e)
{
if (!santinela2)
{
return;
}
if (t.Enabled)
{
santinela = true;
t.Stop();
// double click: both clicks must be done in the same place
if (e.Item == selectionChangedItem)
{
if (!e.IsSelected)
{
santinela2 = true;
e.Item.Selected = true;
santinela2 = false;
}
listView1_ItemActivate(sender, EventArgs.Empty);
}
selectionChangedItem = null;
}
else
{
santinela = false;
t.Stop();
selectionChangedItem = e.Item;
t.Start();
}
}
internal void listView1_SelectedIndexChanged(object sender, EventArgs e)
{
if (listView1.SelectedIndices.Count == 0)
{
santinela = true;
t.Stop();
selectionChangedItem = null;
santinela3 = false;
for (int i = 0; i < listView1.CheckedItems.Count; ++i)
{
listView1.CheckedItems[i].Checked = false;
}
santinela3 = true;
}
}
The relevant designer code is below:
System.Windows.Forms.ListViewItem listViewItem1 = new System.Windows.Forms.ListViewItem("item1");
System.Windows.Forms.ListViewItem listViewItem2 = new System.Windows.Forms.ListViewItem("item2");
this.listView1 = new System.Windows.Forms.ListView();
this.SuspendLayout();
//
// listView1
//
this.listView1.CheckBoxes = true;
listViewItem1.StateImageIndex = 0;
listViewItem2.StateImageIndex = 0;
this.listView1.Items.AddRange(new System.Windows.Forms.ListViewItem[] {
listViewItem1,
listViewItem2});
this.listView1.Location = new System.Drawing.Point(12, 12);
this.listView1.Name = "listView1";
this.listView1.Size = new System.Drawing.Size(401, 327);
this.listView1.TabIndex = 0;
this.listView1.UseCompatibleStateImageBehavior = false;
this.listView1.ItemActivate += new System.EventHandler(this.listView1_ItemActivate);
this.listView1.ItemCheck += new System.Windows.Forms.ItemCheckEventHandler(this.listView1_ItemCheck);
this.listView1.ItemSelectionChanged += new System.Windows.Forms.ListViewItemSelectionChangedEventHandler(this.listView1_ItemSelectionChanged);
this.listView1.SelectedIndexChanged += new System.EventHandler(this.listView1_SelectedIndexChanged);
Update: The issue I am facing because of the timer is that after hovering with the rubberband a ListViewItem, there is the useless delay of the timer before the item gets checked. When the user resizes/moves the rubberband so that the ListViewItem is no longer checked, there is the same delay. If the user does not know of that non-standard delay, the selection can be wrong.
Using C#, windows form.
I am trying to make the program automatically select next item on combo box every x seconds and once it reaches the last one, it goes back to the first one on list. i got pretty much everything minus auto combo box selection part. :(
help please.
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
//pictureBox1.Image = Image.FromFile(#"Z:\DSCF1661.jpg");
DirectoryInfo test = new DirectoryInfo(#"C:\temp");//Assuming Test is your Folder
FileInfo[] Files = test.GetFiles("*.pdf"); //Getting Text files
comboBox1.DataSource = Files;
comboBox1.DisplayMember = "Name";
timerset();
}
public void axSetting()
{
axAcroPDF1.setShowToolbar(false);
axAcroPDF1.setView("FitH");
axAcroPDF1.setPageMode("none");
axAcroPDF1.setLayoutMode("SinglePage");
axAcroPDF1.Show();
}
private void comboBox1_SelectedIndexChanged_1(object sender, EventArgs e)
{
axAcroPDF1.LoadFile(#"C:\temp\" + comboBox1.Text);
axAcroPDF1.src = #"C:\temp\" + comboBox1.Text;
axSetting();
}
//private System.Windows.Forms.Timer timer1;
public void comboBoxSelect()
{
if (comboBox1.SelectedIndex < comboBox1.Count) // this part... :(
{
comboBox1.SelectedIndex += 1;
}
else
{
comboBox1.SelectedIndex = 0;
}
}
public void timerset()
{
timer1 = new System.Windows.Forms.Timer();
timer1.Tick += new EventHandler(timer1_Tick);
timer1.Interval = 5000; // in miliseconds
timer1.Start();
}
private void timer1_Tick(object sender, EventArgs e)
{
comboBoxSelect();
}
This should work:
if(combobox.SelectedIndex < (combobox.Items.Count -1))
{
combobox.SelectedIndex += 1;
}
else
{
combobox.SelectedIndex = 0;
}
I would like that when the form loads and/or starts my picture slide will start automatically.I tried to put the path of where the folder is located but it keeps giving an error. When I use it a dialog box it works. I am trying to bypass the dialog box so it starts automatically.
public partial class Form1 : Form
{
private string[] folderFile = null;
private int selected = 0;
private int end = 0;
FolderBrowserDialog folderBrowserDialog1 = new FolderBrowserDialog();
// The folder is pre created
string path1 = Environment.GetFolderPath(Environment.SpecialFolder.Personal) + "\\Pictures";
public Form1()
{
InitializeComponent();
//This does not work when the form starts up.
if (!Directory.Exists(path1))
{
string[] part1 = null, part2 = null, part3 = null;
part1 = Directory.GetFiles(path1, "*.jpg");
part2 = Directory.GetFiles(path1, "*.jpeg");
part3 = Directory.GetFiles(path1, "*.bmp");
folderFile = new string[part1.Length + part2.Length + part3.Length];
Array.Copy(part1, 0, folderFile, 0, part1.Length);
Array.Copy(part2, 0, folderFile, part1.Length, part2.Length);
Array.Copy(part3, 0, folderFile, part1.Length + part2.Length, part3.Length);
selected = 0;
//begin = 0;
end = folderFile.Length;
showImage(folderFile[selected]);
// 5 to 10 second intervals
//timer1.Enabled = true;
}
else
{
}
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void timer1_Tick(object sender, EventArgs e)
{
nextImage();
}
private void btnFolder_Click(object sender, EventArgs e)
{
//Original
//This works!!
//while (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
//{
// string[] part1 = null, part2 = null, part3 = null;
// part1 = Directory.GetFiles(folderBrowserDialog1.SelectedPath, "*.jpg");
// part2 = Directory.GetFiles(folderBrowserDialog1.SelectedPath, "*.jpeg");
// part3 = Directory.GetFiles(folderBrowserDialog1.SelectedPath, "*.bmp");
// folderFile = new string[part1.Length + part2.Length + part3.Length];
// Array.Copy(part1, 0, folderFile, 0, part1.Length);
// Array.Copy(part2, 0, folderFile, part1.Length, part2.Length);
// Array.Copy(part3, 0, folderFile, part1.Length + part2.Length, part3.Length);
// selected = 0;
// //begin = 0;
// end = folderFile.Length;
// showImage(folderFile[selected]);
// //btnPrev.Enabled = true;
// //btnNext.Enabled = true;
// //btnStartSlide.Enabled = true;
//}
}
private void showImage(string path)
{
Image imgtemp = Image.FromFile(path);
//pictureBox1.Width = imgtemp.Width / 2;
//pictureBox1.Height = imgtemp.Height / 2;
//pictureBox1.Image = imgtemp;
panel1.BackgroundImage = imgtemp;
}
private void prevImage()
{
if (selected == 0)
{
selected = folderFile.Length - 1;
showImage(folderFile[selected]);
}
else
{
selected = selected - 1;
showImage(folderFile[selected]);
}
}
private void nextImage()
{
if (selected == folderFile.Length - 1)
{
selected = 0;
showImage(folderFile[selected]);
}
else
{
selected = selected + 1;
showImage(folderFile[selected]);
}
}
private void btnPreviews_Click(object sender, EventArgs e)
{
prevImage();
}
private void btnNext_Click(object sender, EventArgs e)
{
nextImage();
}
private void btnStart_Click(object sender, EventArgs e)
{
if (timer1.Enabled == true)
{
timer1.Enabled = false;
btnStart.Text = "<< START >>";
}
else
{
timer1.Enabled = true;
btnStart.Text = "<< STOP >>";
}
}
}
}
Try
string path1 = Environment.GetFolderPath(Environment.SpecialFolder.MyPictures) + "\\Sample_Pictures";
or
string path1 = Environment.GetFolderPath(Environment.SpecialFolder.CommonPictures) + "\\Sample_Pictures";
Or use
string publicDesktopPath = Environment.GetFolderPath(Environment.SpecialFolder.CommonDesktopDirectory);
var directory = new DirectoryInfo(publicDesktopPath);
string path1 = directory.Parent.FullName + "\\Pictures\\Sample_Pictures";
and fix your conditional
if (!Directory.Exists(path1)) {
to
if (Directory.Exists(path1)) {
so that you don't try operations on an non-existent directory.
To get it to cycle through your pictures, you could use a System.Timers.Timer:
In your Form1 class
private static Timer timer;
Declare the timer in your constructor:
timer = new System.Timers.Timer(5000); // change interval in milliseconds
timer.Elapsed += OnTimedEvent;
timer.Enabled = true;
Create the OnTimedEvent method in your Form1 class:
private static void OnTimedEvent(Object source, ElapsedEventArgs e)
{
// Do what you want every time the timer elapses that interval
nextImage();
}
I am trying to Update a timer asynchronously On a Button Click .
say example i have set the time = 60 seconds
and when i run the program after few TIME the timer has reached to 45 seconds and when i click the Button ,then it should add j=15 seconds to the time and the timer should change to 60 seconds asynchronously. Please Help
private int time = 60;
DateTime dt = new DateTime();
private j = 15 ;
private DispatcherTimer timer;
public MainWindow()
{
InitializeComponent();
timer = new DispatcherTimer();
timer.Interval = new TimeSpan(0, 0, 1);
timer.Tick += timer_tick;
timer.Start();
}
void timer_tick(object sender, EventArgs e)
{
if (time >0)
{
time--;
text.Text = TimeSpan.FromSeconds(time).ToString();
}
else
{
timer.Stop();
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
text.Text = dt.AddSeconds(j).ToString("HH:mm:ss");
}
Here is my code you can try it it's working.
private int time = 60;
DateTime dt = new DateTime();
private int j = 15;
private Timer timer1 = new Timer();
void timer_tick(object sender, EventArgs e)
{
if (time > 0)
{
time--;
text.Text = TimeSpan.FromSeconds(time).ToString();
}
else
{
timer1.Stop();
}
}
public timer()
{
InitializeComponent();
timer1 = new Timer();
timer1.Interval = 1000;
timer1.Tick += timer_tick;
timer1.Start();
}
private void button1_Click(object sender, EventArgs e)
{
time += j;
}
I'm trying to make a slideshow with a mediaElement that shows each image in listbox x seconds.
How do I make my code play each image x seconds before continuing?
This code adds all images to a listbox named Listbox1
Dictionary<string, string> Listbox1Dict = new Dictionary<string, string>();
private void SearchBtn_Click(object sender, RoutedEventArgs e)
{
Listbox1.Items.Clear();
FolderBrowserDialog folderDialog = new FolderBrowserDialog();
folderDialog.SelectedPath = "C:\\";
DialogResult result = folderDialog.ShowDialog();
if (result.ToString() == "OK")
FileNameTextBox.Text = folderDialog.SelectedPath;
string directory = FileNameTextBox.Text;
var files = Directory.GetFiles(directory).Where(name => !name.EndsWith(".ini"));
foreach (string file in files)
{
Listbox1.Items.Add(System.IO.Path.GetFileNameWithoutExtension(file));
Listbox1Dict.Add(System.IO.Path.GetFileNameWithoutExtension(file), file);
}
}
This code shows all images in fullscreen but it skips everyone to last image at start.
private void button1_Click_1(object sender, RoutedEventArgs e)
{
foreach (var selected in Listbox1.Items)
{
string s = selected.ToString();
if (Listbox1Dict.ContainsKey(s))
{
mediaElement1.Visibility = Visibility.Visible;
SearchBtn.Visibility = Visibility.Hidden;
Listbox1.Visibility = Visibility.Hidden;
FileNameTextBox.Visibility = Visibility.Hidden;
mediaElement1.Source = new Uri(Listbox1Dict[s]);
mediaElement1.Width = System.Windows.SystemParameters.PrimaryScreenWidth;
mediaElement1.Height = System.Windows.SystemParameters.PrimaryScreenHeight;
this.Background = new SolidColorBrush(Colors.Black);
this.WindowStyle = WindowStyle.None;
this.WindowState = WindowState.Maximized;
}
}
}
Tried this code to make the image play one by one but I get an error. Look on comment on code:
private int currentSongIndex = -1;
void mediaElement1next(object sender, EventArgs e)
{
if(currentSongIndex == -1)
{
currentSongIndex = Listbox1.SelectedIndex;
}
currentSongIndex++;
if(currentSongIndex < Listbox1.Items.Count)
{
mediaElement1.Play(Listbox1.Items[currentSongIndex]); // No overload for method 'Play' takes 1 arguments
}
else
{
// last song in listbox has been played
}
}
I think you need a timer to set your next image. Using the code you're currently using, it will iterate through your list and change the image until you get to the end.
Take a look at DispatcherTimer. You could set it so, at each tick, it would change to the next image. Something like this (just writing off my head)
dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
Then, inside your eventhandler:
private void dispatcherTimer_Tick(object sender, EventArgs e)
{
// get the next image
}
Of course you can use other kinds of timers, but that's the main idea.
Hold your image paths in a list & use the tick event of a timer.
Something like:
List<string> paths = new List<string>();
private void timer1_Tick(object sender, EventArgs e)
{
pictureBox1.Image = getNextImage();
}
private string getNextImage()
{
//code...
}
enter code here
EDIT:
Add a class variable: int index = 0;
On the SearchBtn_Click event, add the results to the list.
//..
foreach (string file in files)
{
paths.Add(file);
}
//..
Then do as I did above and the content of the getNextImage method would be:
private string getNextImage()
{
if(index < paths.Count - 1)
{
index += 1;
}
else
{
index = 0;
}
return paths[index];
}
My idea would be to implement a thread that counted to X and then called a NextImage() function when done.
Something like this:
private void Button_Click_1(object sender, RoutedEventArgs e)
{
if (Listbox1.Items.Count > 0)
{
if (dispatcherTimer.IsEnabled)
dispatcherTimer.Stop();
else
{
curImage = 0;
dispatcherTimer.Start();
}
}
}
private void dispatcherTimer_Tick(object sender, EventArgs e)
{
Dispatcher.Invoke((Action)delegate
{
ShowNextImage();
}, null);
}
private void ShowNextImage()
{
if (curImage >= Listbox1.Items.Count)
curImage = 0;
var selected = Listbox1.Items[curImage];
string s = selected.ToString();
if (Listbox1Dict.ContainsKey(s))
{
mediaElement1.Visibility = Visibility.Visible;
SearchBtn.Visibility = Visibility.Hidden;
Listbox1.Visibility = Visibility.Hidden;
FileNameTextBox.Visibility = Visibility.Hidden;
mediaElement1.Source = new Uri(Listbox1Dict[s]);
mediaElement1.Width = System.Windows.SystemParameters.PrimaryScreenWidth;
mediaElement1.Height = System.Windows.SystemParameters.PrimaryScreenHeight;
this.Background = new SolidColorBrush(Colors.Black);
this.WindowStyle = WindowStyle.None;
this.WindowState = WindowState.Maximized;
}
}
and declaration
DispatcherTimer dispatcherTimer = new DispatcherTimer();
int x = 2; //seconds
private int curImage = 0;
and some construct
dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
dispatcherTimer.Interval = new TimeSpan(0, 0, x);