Add drag 'n drop item to ListView group

[adrianjohnson]

Hi all,

I've implemented a drag and drop facility on a ListView (WinForms) application. The drag and drop itself works fine, as I write to the console the name of the file to be dropped.

However, my list view shows it's items in detail view (just 2 columns) and they're all bunched together in groups. I can get the name of the group, but cannot add the new drag-drop item into the group. Any ideas?

Here is some of the code:

        private void listMain_DragEnter(object sender, DragEventArgs e)
        {
            // Drag-drop operation for list view.

            // User is dragging a file into the tree view.
            if (e.Data.GetDataPresent(DataFormats.FileDrop))
            {
                e.Effect = DragDropEffects.All;
            }
            else
            {
                e.Effect = DragDropEffects.None;
            }
        }

        

        private void listMain_DragDrop(object sender, DragEventArgs e)
        {
            // Drag-drop operation for list view.

            // Get the name of the file being dropped in.
            string[] s = (string[])e.Data.GetData(DataFormats.FileDrop, false);
            FileInfo newFile;
            string fileName = "";

            for (int i = 0; i < s.Length; i++)
            {
                newFile = new FileInfo(s[i]);
                fileName = newFile.ToString();
            }

            Console.WriteLine(fileName.ToString());


            if (currentGroup != "")
            {
                // Add the file to the list view.
                int startIndex = fileName.LastIndexOf(@"\");
                string myFile = fileName.Substring(startIndex + 1); ;

                ListViewItem listItem = new ListViewItem(myFile, currentGroup);
                listItem.Tag = fileName.ToString();
                listItem.SubItems.Add(File.GetLastWriteTime(fileName).ToString());
                listMain.Items.Add(listItem);
            }
        }

Many thanks,

Adrian Johnson

Adrian Johnson

http://www.amanian.co.uk

http://www.adrian-johnson.com