i have the code in which i m displaying directories and files from the computer.i can open them by using folerbrowser. so far so good but now i want to add backward and forward button so that i can see the previous folder or file selected and go fwd to.
public partial class ListView : Form
{
public ListView()
{
InitializeComponent();
comboBox1.SelectedIndex = 2;
}
private void PopulateListView()
{
listView1.Clear();
//headers listview
listView1.Columns.Add("File Name", 200);
listView1.Columns.Add("Size", 80);
listView1.Columns.Add("Last Accessed", 110);
ExtensionsHolder.Clear();
if (folderBrowser.ShowDialog() == DialogResult.OK)
{
//int thefile = 0;
string[] dirData = new string[3];
string[] filData = new string[3];
string[] files = Directory.GetFiles(folderBrowser.SelectedPath);
var folders = Directory.GetDirectories(folderBrowser.SelectedPath)
.Where(d => !new DirectoryInfo(d).Attributes.HasFlag(FileAttributes.System | FileAttributes.Hidden));
try
{
//THIS IS THE ITERATION TO GET SUBDIRECTORIES
foreach (string dir in folders)
{
//string name = Path.g;
dirData[0] = dir.ToString();
dirData[1] = dir.Length.ToString();
dirData[2] = File.GetLastAccessTime(dir).ToString();
ListViewItem lv = new ListViewItem(dirData, imageList1.Images.Count);
lv.Tag = dir;
imageList1.Images.Add(IconExtractor.Form1.GetFolderIcon(IconExtractor.IconSize.Small, IconExtractor.FolderType.Closed));
listView1.SmallImageList = imageList1;
listView1.Items.Add(lv);
}
//THIS IS ITERATION FOR FILES OF THE DIRECTORY
foreach (string file in files)
{
FileInfo finfo = new FileInfo(file);
FileAttributes fatr = finfo.Attributes;
string name = Path.GetFileNameWithoutExtension(file);
filData[0] = name;
filData[1] = finfo.Length.ToString();
filData[2] = File.GetLastAccessTime(file).ToString();
ListViewItem lv = new ListViewItem(filData, imageList1.Images.Count - 1);
lv.Tag = file;
string extension = Path.GetExtension(file);
if (!extension.Equals("") && !ExtensionsHolder.Contains(extension))
{
ExtensionsHolder.Add(extension);
imageList1.Images.Add(BlackFox.Win32.Icons.IconFromExtensionShell(extension, BlackFox.Win32.Icons.SystemIconSize.Small));
}
listView1.SmallImageList = imageList1;
listView1.Items.Add(lv);
}
}
catch (UnauthorizedAccessException)
{
listView1.Items.Add("Access denied");
}
}
}
List<string> ExtensionsHolder = new List<string>();
private void textBox1_TextChanged(object sender, EventArgs e)
{
string chattextbox=textBox1.Text;
}
private void button1_Click(object sender, EventArgs e)
{
PopulateListView();
textBox1.Text = folderBrowser.SelectedPath;
}
private void listView1_ItemActivate(object sender, EventArgs e)
{
try
{
string sPath = listView1.FocusedItem.Tag.ToString();
Process.Start(sPath);
}
catch(Exception Exc) { MessageBox.Show(Exc.ToString()); }
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
if(comboBox1.SelectedIndex == 0)
listView1.View = View.LargeIcon;
if(comboBox1.SelectedIndex==1)
listView1.View = View.SmallIcon;
if(comboBox1.SelectedIndex==2)
listView1.View = View.Details;
if (comboBox1.SelectedIndex == 3)
listView1.View = View.List;
else if (comboBox1.SelectedIndex == 5)
listView1.View = View.Tile;
}
private void Farward_Click(object sender, EventArgs e)
{
//Stack fpath = new Stack();
Stack<string> itemindex = new Stack<string>();
itemindex.Push(listView1.SelectedIndices.ToString());
itemindex.Push("two");
itemindex.Push("three");
//itemindex.Push("four");
//itemindex.Push("five");
// A stack can be enumerated without disturbing its contents.
foreach (string number in itemindex)
{
Console.WriteLine(number);
}
Console.WriteLine("\nPopping '{0}'", itemindex.Pop());
Console.WriteLine("Peek at next item to destack: {0}",
itemindex.Peek());
Console.WriteLine("Popping '{0}'", itemindex.Pop());
}
private void Back_Click(object sender, EventArgs e)
{
int i = 0;
for (i = 0; i < listView1.Items.Count; i++)
{
if (i != 0)
{
listView1.Items[i - 1].SubItems[1].Text = "Selected";
// txtPath.Text = listView1.Items[i - 1].Text;
}
}
}
private void listView1_MouseDoubleClick(object sender, MouseEventArgs e)
{
if (listView1.SelectedIndices.Count > 0)
MessageBox.Show("selected index"+ listView1.SelectedIndices[0]);
else
MessageBox.Show("No item selected");
}
}
}
Forward . . .
private void Farward_Click(object sender, EventArgs e)
{
//Stack fpath = new Stack();
Stack<string> itemindex = new Stack<string>();
itemindex.Push(listView1.SelectedIndices.ToString());
itemindex.Push("two");
itemindex.Push("three");
//itemindex.Push("four");
//itemindex.Push("five");
// A stack can be enumerated without disturbing its contents.
foreach (string number in itemindex)
{
Console.WriteLine(number);
}
Console.WriteLine("\nPopping '{0}'", itemindex.Pop());
Console.WriteLine("Peek at next item to destack: {0}",
itemindex.Peek());
Console.WriteLine("Popping '{0}'", itemindex.Pop());
}
Backward . . .
private void Back_Click(object sender, EventArgs e)
{
int i = 0;
for (i = 0; i < listView1.Items.Count; i++)
{
if (i != 0)
{
listView1.Items[i - 1].SubItems[1].Text = "Selected";
// txtPath.Text = listView1.Items[i - 1].Text;
}
}
}
It’s kind of hard to do this because your code contains a lot of unecessary UI stuff. Anyway this is how I did it . . .
Let
lvItemsbe our ListView, and allowA B C Dbe the elements in our ListView. We select only A, C, D . . .So in our
Nextbutton, we define the Click event as follows . . .And in our
Backbutton, we define the Click event as follows . . .Is this what you’re looking for? Tell me how it goes . . .