Listing subfolders and files from an main folder within treeview c#

[bhagyap]

Hi..

I am populating a treeview in form1 based on the checkeditems in checkedlistbox which is in form2 but am unable to list the subfolders and files of the checked folder..

Can anyone please help me????

Thanks..

hi..

This is my scenario but am not getting any error..

I have two forms form1 and form2,in form1 i have an treeview and in form2 i have checkedlistbox which i am populating as follows:-

System.IO.DirectoryInfo di = new System.IO.DirectoryInfo("E:\\Mails");
            System.IO.FileSystemInfo[] files = di.GetDirectories();
            checkedListBox1.Items.AddRange(files);

and based on the checkedfolder i am building an treeview but am unbale to view the subfolders and files from the checked folder..

[adriancs]

hi, can u show the code where the error occurs?

[bhagyap]

Following is my code and am getting error for GetDirectories..

Could not find a part of the path 'E:\mails\System.Windows.Forms.CheckedListBox+Chec kedItemCollection'.



private void ListDirectory(TreeView treeView, string path)
{
treeView.Nodes.Clear();
var rootDirectoryInfo = new DirectoryInfo(path);
treeView.Nodes.Add(CreateDirectoryNode(rootDirecto ryInfo));
}

private static TreeNode CreateDirectoryNode(DirectoryInfo directoryInfo)
{
var directoryNode = new TreeNode(directoryInfo.Name);
foreach (var directory in directoryInfo.GetDirectories())
directoryNode.Nodes.Add(CreateDirectoryNode(direct ory));
foreach (var file in directoryInfo.GetFiles())
directoryNode.Nodes.Add(new TreeNode(file.Name));
return directoryNode;
}

Please help me...

[adriancs]

...............................

[adriancs]

You may want to try this:

resource: http://www.dreamincode.net/code/snippet2591.htm

public void PopulateTree(string dir, TreeNode node)
{
    DirectoryInfo directory = new DirectoryInfo(dir);
    foreach (DirectoryInfo d in directory.GetDirectories())
    {
        TreeNode t = new TreeNode(d.Name);
        PopulateTree(d.FullName, t);
        node.Nodes.Add(t);
    }
    foreach (FileInfo f in directory.GetFiles())
    {
        TreeNode t = new TreeNode(f.Name);
        node.Nodes.Add(t);
    }
}

[adriancs]

can you show the codes (or blocks of code)>> How do you get this? From where do you get this?

'E:\mails\System.Windows.Forms.CheckedListBox+Chec kedItemCollection'

It seems to be somewhere related to CheckedListBox.

How do you get the directory path from CheckedListBox?

[bhagyap]

I have overcome the exception which is as follows:-

foreach (var obj in opt.checkedListBox1.CheckedItems)
{
ListDirectory(treeView1, "E:\\mails\\" + obj);
treeView1.ExpandAll();
}
now the problem is i am unable to loop for all the checked folders..

Please guide me where i am going wrong..

[adriancs]

I'm still trying to understand what you want.

You want to add all files in all checked folders from CheckedListBox into a TreeView Control, is it?

[bhagyap]

yes.. the checked folder should list its sub folders and files then display into treeview..

[adriancs]

private void button1_Click(object sender, EventArgs e)
{
    foreach (var obj in checkedListBox1.CheckedItems)
    {
        PopulateTree("E:\\mail" + obj, treeView1.Nodes.Add(obj + ""));
    }
}
 
public void PopulateTree(string dir, TreeNode node)
{
    DirectoryInfo directory = new DirectoryInfo(dir);
    foreach (DirectoryInfo d in directory.GetDirectories())
    {
        TreeNode t = new TreeNode(d.Name);
        PopulateTree(d.FullName, t);
        node.Nodes.Add(t);
    }
    foreach (FileInfo f in directory.GetFiles())
    {
        TreeNode t = new TreeNode(f.Name);
        node.Nodes.Add(t);
    }
}

[bhagyap]

Thank You.. but can u please help me in not repeating the folders into treeiew..

[adriancs]

can you give an example of "not repeating the folders into treeview".

[bhagyap]

as i am populating the treeview from checkedlistbox i am retaining the state of it whenever the form loads so if i check a new folder and return to main form it populates the newly checked folders as well as previously checked..

And how can i add root node to this??

Thank You!!!

[adriancs]

private void button1_Click(object sender, EventArgs e)
{
    treeView1.Nodes.Clear();
    treeView1.Nodes.Add("Root");
    foreach (var obj in checkedListBox1.CheckedItems)
    {
        PopulateTree("F:\\" + obj, treeView1.Nodes[0]);
    }
}

[bhagyap]

Thank You.. Ur code is very heplful to me..