private void exportToolStripMenuItem_Click(object sender, EventArgs e)
        {
            frmExport f = new frmExport();

            f.MdiParent = this;
            f.Show();
        }
		private void exportToolStripMenuItem_Click(object sender, EventArgs e)
		{
			frmExport f = new frmExport();
			f.MdiParent = this;
			f.Show();
		}