private void FileToDatabaseToolStripMenuItem_Click(object sender, EventArgs e) { if (filetodb == null) { filetodb = new FileToDB(); filetodb.MdiParent = this; filetodb.FormClosed += Filetodb_FormClosed; filetodb.Show(); } else { filetodb.Activate(); } }
private void Filetodb_FormClosed(object sender, FormClosedEventArgs e) { filetodb = null; }