private void NAddStaffBtn_Click(object sender, EventArgs e)
{
InventoryProductReportGenerate report = new InventoryProductReportGenerate();
this.Hide();
report.Show();
}
private void Button1_Click(object sender, EventArgs e)
{
InventoryProductReportGenerate rp = new InventoryProductReportGenerate();
this.Hide();
rp.Show();
}