如果没有源目录，如何拖放文件？

Question

I have a little program that essentially moved files into a specific folder when the user drags the file into a panel. This works for anything that has a directory path. However, the software crashes if I drag an attachment from outlook into the panel.

(theoretical fix) Take the name of the file being placed into the panel, apply File.Move(attachmentName, temporaryDirectory) however, this seems messy.

private void panel2_DragEnter(object sender, DragEventArgs e)
{
    e.Effect = DragDropEffects.All;
}

public void panel2_DragDrop(object sender, DragEventArgs e)
{
    string destination = @"\\MAIL\DocupaceScans\fsnrep\FSNbp";

    string[] files = (string[])e.Data.GetData(DataFormats.FileDrop, false);
    foreach (string file in files)

    File.Copy(file, destination + "\\" + Path.GetFileName(file));

    MessageBox.Show("Thanks!");
}

Answer 1

You need to get the location of the outlook secure temp folder, which is at this location from Windows 7 and above,

"C:\\Users\\ < user > \\AppData\\Local\\Microsoft\\Windows\\Temporary Internet Files\\Content.Outlook\\"

to implement it, use a try catch block and an if else statement to say where its should be coming from, so that you can catch your exception, and handle the error accordingly.