学生成绩管理系统/frmClass/frmDeptChange.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
using Model;
using BLL;

namespace 学生成绩管理系统.frmClass
{

    public partial class frmDeptChange : Form
    {
        private string deptName;
        public frmDeptChange()
        {
            InitializeComponent();
        }
        public frmDeptChange(string dept)
        {
            InitializeComponent();
            this.deptName = dept;
        }

        private void frmDeptChange_Load(object sender, EventArgs e)
        {
            txtDeptName.Text = this.deptName;
            SqlConnection conn = new SqlConnection();
            conn.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["connstr"].ConnectionString;
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = conn;
            cmd.CommandText = "select cdeptNo from Department where cdeptName='" + deptName + "'";
            conn.Open();
            lblDeptNo.Text = cmd.ExecuteScalar().ToString();
            conn.Close();
        }

        private void btnChange_Click(object sender, EventArgs e)
        {
            Dept dept=new Dept ();
            dept.CdeptNo = lblDeptNo.Text;
            dept.CdeptName = txtDeptName.Text;
            DeptBLL deptBll = new DeptBLL();
            try
            {
                deptBll.DeptChange(dept, txtDeptName .Text );
                MessageBox.Show("系别信息已成功修改！");
            }
            catch (Exception ex)
            {

                MessageBox.Show(ex.Message);
            }

        }