void LoadTjxm()
        {
            if (txtDw.Text.Trim()=="")
            {
                txtDw.Tag = "";
            }
            DataTable dt = new DataTable();
            dt = tjjgBiz.GetSzTjbg(comn.DateTimeChange(dtpFrom.Value.AddDays(-1)) + " 23:59:59",
                comn.DateTimeChange(dtpTo.Value) + " 23:59:59",txtDw.Tag.ToString());
            if (dt.Rows.Count > 0)//已存在记录
            {
                dtTjhz.Rows.Clear();
                // ,,,,,,,,,
                cmbRylb.Text = dt.Rows[0]["rylb"].ToString().Trim();
                strBgid = dt.Rows[0]["bgid"].ToString().Trim();
                maxdate = Convert.ToDateTime(dt.Rows[0]["maxdate"].ToString().Trim());
                mindate = Convert.ToDateTime(dt.Rows[0]["mindate"].ToString().Trim());
                txtDw.Text = dt.Rows[0]["dwmc"].ToString().Trim();
                txtDw.Tag = dt.Rows[0]["sjdw"].ToString().Trim();
                txtTjrs.Text = dt.Rows[0]["tjrs"].ToString().Trim();
                txtTjxm.Text = dt.Rows[0]["tjxm"].ToString().Trim();
                //txtTjjl.Text = dt.Rows[0]["tjjl"].ToString().Trim();
                richTextBox1.Text = dt.Rows[0]["tjjl"].ToString().Trim();
                DataRow row;
                for (int i = 0; i < dt.Rows.Count; i++)
                {
                    row = dtTjhz.NewRow();
                    row["gz"] = dt.Rows[i]["gz"].ToString().Trim();
                    row["rs"] = dt.Rows[i]["zrs"].ToString().Trim();
                    row["ycrs"] = dt.Rows[i]["jkycrs"].ToString().Trim();
                    row["zyjkyc"] = dt.Rows[i]["zyycrs"].ToString().Trim();
                    row["dwmc"] = dt.Rows[i]["sjdw"].ToString().Trim();
                    row["whys"] = dt.Rows[i]["whys"].ToString().Trim();
                    dtTjhz.Rows.Add(row);

                    dtTjhz.AcceptChanges();
                }

                dgvTjhz.DataSource = dtTjhz;
            }
            else//不存在记录的
            {
                MessageBox.Show("没有该单位的数据!", "提示");
                return;
                
            }
        }