private void radRibbonBarGroup1_Click(object sender, EventArgs e)
{
Invoice inv = new Invoice();
inv.MdiParent = this;
inv.Show();
}
private void pictureBox5_Click(object sender, EventArgs e)
{
// toolStripProgressBar1.Maximum = max;
// timer1.Start();
// timer1.Enabled = true;
if (Application.OpenForms["Billing"] != null)
{
MessageBox.Show("Please close the Billing interface!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else if (Application.OpenForms["Invoice"] == null)
{
Invoice inv = new Invoice();
inv.MdiParent = this;
inv.Size = new System.Drawing.Size(1100, 690);
inv.Location = new System.Drawing.Point(5, 5);
inv.Show();
}
}