private void dataGridView_student_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            if (e.RowIndex >= 0)
            {
                Form_Student_appendModify form_Student_appendModify = new Form_Student_appendModify
                {
                    isAppend = false,
                    Text     = "学员修改",

                    name       = dataGridView_student.Rows[e.RowIndex].Cells["姓名"].Value.ToString(),
                    gender     = dataGridView_student.Rows[e.RowIndex].Cells["性别"].Value.ToString(),
                    idType     = dataGridView_student.Rows[e.RowIndex].Cells["身份证明类型"].Value.ToString(),
                    idNo       = dataGridView_student.Rows[e.RowIndex].Cells["身份证明号码"].Value.ToString(),
                    driverType = dataGridView_student.Rows[e.RowIndex].Cells["驾驶证类型"].Value.ToString(),
                    schoolName = dataGridView_student.Rows[e.RowIndex].Cells["驾校名称"].Value.ToString()
                };
                form_Student_appendModify.photoBytes[0] = null;
                form_Student_appendModify.photoBytes[1] = null;

                if (form_Student_appendModify.ShowDialog() == DialogResult.OK)
                {
                    dataGridView_student.DataSource = mDBM.Select(__StudentViewSQL).Tables[0];
                }
            }
        }
        private void button_search_Click(object sender, EventArgs e)
        {
            string studentSQL = "";

            if (!String.IsNullOrEmpty(textBox_name.Text))
            {
                studentSQL += studentSQL == "" ? "" : " and ";
                studentSQL += "NAME='" + textBox_name.Text + "'";
            }
            if (!string.IsNullOrEmpty(comboBox_gender.Text))
            {
                studentSQL += studentSQL == "" ? "" : " and ";
                studentSQL += "GENDER_DICT_NAME='" + comboBox_gender.Text + "'";
            }
            if (!string.IsNullOrEmpty(comboBox_idType.Text))
            {
                studentSQL += studentSQL == "" ? "" : " and ";
                studentSQL += "IDTYPE_DICT_NAME='" + comboBox_idType.Text + "'";
            }
            if (!string.IsNullOrEmpty(textBox_idNumber.Text))
            {
                studentSQL += studentSQL == "" ? "" : " and ";
                studentSQL += "IDNUMBER='" + textBox_idNumber.Text + "'";
            }
            if (!string.IsNullOrEmpty(comboBox_schoolName.Text))
            {
                studentSQL += studentSQL == "" ? "" : " and ";
                studentSQL += "SCHOOL_NAME='" + comboBox_schoolName.Text + "'";
            }
            if (!string.IsNullOrEmpty(comboBox_driverLicenseType.Text))
            {
                studentSQL += studentSQL == "" ? "" : " and ";
                studentSQL += "DRIVER_LICENSE_TYPE='" + comboBox_driverLicenseType.Text + "'";
            }
            studentSQL = __StudentViewSQL + (studentSQL == "" ? "" : " where " + studentSQL);
            dataGridView_student.DataSource = mDBM.Select(studentSQL).Tables[0];
            //if (TrainingModeEnum.ByTime == TrainingMode)
            //{
            //    dataGridView_student.Columns["预约次数"].Visible = false;
            //    dataGridView_student.Columns["剩余次数"].Visible = false;
            //    dataGridView_student.Columns["预约时间"].Visible = true;
            //    dataGridView_student.Columns["剩余时间"].Visible = true;
            //}
            //else
            //{
            //    dataGridView_student.Columns["预约次数"].Visible = true;
            //    dataGridView_student.Columns["剩余次数"].Visible = true;
            //    dataGridView_student.Columns["预约时间"].Visible = false;
            //    dataGridView_student.Columns["剩余时间"].Visible = false;
            //}

            string[] names = mDBM.SelectArray(studentSQL);

            // 学员注册
            if (names.Length == 0)
            {
                if (DialogResult.Yes == MessageBox.Show("学员不存在,是否注册", "提示", MessageBoxButtons.YesNo))
                {
                    Form_Student_appendModify form_Student_appendModify = new Form_Student_appendModify
                    {
                        isAppend = true,
                        Text     = "学员添加",

                        name       = textBox_name.Text,
                        gender     = comboBox_gender.Text,
                        idType     = comboBox_idType.Text,
                        idNo       = textBox_idNumber.Text,
                        driverType = comboBox_driverLicenseType.Text,
                        schoolName = comboBox_schoolName.Text
                    };
                    form_Student_appendModify.photoBytes[0] = null;
                    form_Student_appendModify.photoBytes[1] = null;

                    if (form_Student_appendModify.ShowDialog() == DialogResult.OK)
                    {
                        dataGridView_student.DataSource = mDBM.Select(__StudentViewSQL).Tables[0];
                    }
                }
                else
                {
                    return;
                }
            }
        }