Drag and Drop Files

[randall2nd]

I am new to C# and .NET.
I have created an app that will list files in a listview control for specified directories.

I need to be able to do drag and drop file opens. Exactly like Windows Explorer.

For example:
If a text file (abc.txt) is in the listview, I need to be able to grab that entry and drag it onto an open notepad application, drop it and have note pad open the dropped file.

Thus far I have been able to grab the item drag it, but when I drag oustide my app the cursor turns to the not-allowed cursor.

What type of Object should I be using in DoDragDrop()?
How do create that Object?
What type(s) of Effects should I be using in DoDragDrop()?

Am I missing something?

All advice/guidance/examples are appreciated.


Randall2nd

 

[randall2nd]

Figured it out!!!!
Here is what worked for me.

private void lsvFiles_ItemDrag(object sender, System.Windows.Forms.ItemDragEventArgs e)
{
  //Build the string array of selected File names
  String[] sDragDropItem = new String[(e.Item as ListViewItem).ListView.SelectedItems.Count];
  for(int z=0; z < (e.Item as ListViewItem).ListView.SelectedItems.Count; z++)
  {
    sDragDropItem[z] = (e.Item as ListViewItem).ListView.SelectedItems[z].Text;
  }
      
  //Convert String Array into IDataObject of format FileDrop
  IDataObject tempDataObject = new DataObject(DataFormats.FileDrop,sDragDropItem);

  //I only want to drag on left mouse button click
  if (e.Button.Equals(MouseButtons.Left))
  {
    //make sure the ListView displays which rows are selected
    (e.Item as ListViewItem).ListView.Focus();
    //Start Drag Drop operation
    //only allow copy and link actions
    (e.Item as ListViewItem).ListView.DoDragDrop(tempDataObject,DragDropEffects.Copy|DragDropEffects.Link);
  }
}
[code]

Randall2nd