先出现配制窗体，再出现主窗体的做法

        private void frmGeneralReport_Load(object sender, EventArgs e)
        {
            frmReportParaIn reportParaIn = new frmReportParaIn(4);
            reportParaIn.GenerateReport += new CloseAndSubmitReportParametersHandler(GenerateReport);
            reportParaIn.ShowDialog();
        }