private void btnCustomerGrowthReport_Click(object sender, EventArgs e)
        {
            string     selectedReport = "customerGrowthReport";
            frmReports newMDIChild    = new frmReports(selectedReport);

            newMDIChild.MdiParent = this;
            newMDIChild.Show();
        }
        private void btnEmployeePerformance_Click(object sender, EventArgs e)
        {
            string     selectedReport = "employeePerformanceReport";
            frmReports newMDIChild    = new frmReports(selectedReport);

            newMDIChild.MdiParent = this;
            newMDIChild.Show();
        }
        private void btnFullSalesReports_Click(object sender, EventArgs e)
        {
            string     selectedReport = "salesReport";
            frmReports newMDIChild    = new frmReports(selectedReport);

            newMDIChild.MdiParent = this;
            newMDIChild.Show();
        }