how to get files from directory in list_box1 to list_box2?

Mohamed Moumni

I could get the directories (2012 ,2014...) and put them in a listbox1.

`DirectoryInfo[] diri_info =new DirectoryInfo(FBD.SelectedPath).GetDirectories();
foreach (DirectoryInfo dir in diri_info)
{
listBox1.Items.Add(dir);
}

, And I tried to also get the files in a directory selected And display them in the listbox 2 and open selected file but files dosn't appear , how fix that please ?

private void listBox2_SelectedIndexChanged(object sender, EventArgs e)
{
DirectoryInfo dirictory_choisis =(DirectoryInfo)listBox1.SelectedItem;
FileInfo[] files = dirictory_choisis.GetFiles();
foreach (FileInfo file in files)
{
listBox2.Items.Add(file.FullName);
}
}
}
}

[1]: https://i.stack.imgur.com/rmtZH.png

6 Replies

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Amit Gupta9y ago
Accepted answer
Hey

SelectedIndex changed event should be triggered on listbox1 instead of listbox2, so that when it got selected from listbox1, it fetches the files from that respective folder.
1. private void listBox2_SelectedIndexChanged(object sender, EventArgs e)
Good luck !!
Mohamed Moumni9y ago
Thank you very much for your help , it works fin now
Amit Gupta9y ago
When you are getting the collections, just append the foldername\filename to make the fullpath

Or

As you are adding FileInfo to the listbox, you can directly cast and open the file
var FileToOpen = (FileInfo)listbox2.SelectedItem;
Process.Start(FileToOpen.FullName);
Mohamed Moumni9y ago
I have all the dirctories (2014, 2012), the files of each selected folder (.pdf) in the listbox 2
if (FBD.ShowDialog() == DialogResult.OK)
{
    listBox1.Items.Clear();

    DirectoryInfo[] diri_info =newDirectoryInfo(FBD.SelectedPath).GetDirectories();


    foreach (DirectoryInfo diri in diri_info)
    {

        listBox1.Items.Add(diri);

    }
and i get the files by this code
private void button1_Click(object sender, EventArgs e)
       {

           if (listBox1.SelectedIndex >= 0)
           {

               DirectoryInfo dirictory_choisis = (DirectoryInfo)listBox1.SelectedItem;

               FileInfo[] files = dirictory_choisis.GetFiles();

                listBox2.Items.Clear();
               foreach (FileInfo file in files)
               {

                   listBox2.Items.Add(file);


               }

           }
           else
           {
               MessageBox.Show("selectioner un dossier");
           }
       }
Now how I can open the selected file (.pdf) ?
Amit Gupta9y ago
Due to different language, exception can't be understood by me, please interpret it in english, what was that?

Just make sure, that filename you are building on Process.Start(..) exists.

Moreover, particular file must have file association with some program to execute, if it doesn't then it will throw exception.
Karthi Keyan9y ago
Try this,

var fi = listBox1.SelectedItem;
var files = Directory.GetFiles(fi);
foreach(var file in files)
{
listBox2.Items.Add(file);
}