private void frmDataToHis_Load(object sender, System.EventArgs e) { this.label3.Visible = false; DataTable dtmonth = new DataTable(); err = null; dtmonth = ca.GetCurrentMonth(out err); if (err != null || dtmonth.Rows.Count > 0) { this.FillComboBox(this.comboBox1, dtmonth, "curmonth", ""); } else { MessageBox.Show("加裁当前数据月份出错,请重试!", "系统提示", System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Error); this.Close(); } }