学生成绩管理系统/frmClass/frmClassChange.cs

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

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;

namespace 学生成绩管理系统.frmClass
{
    public partial class frmClassChange : Form
    {
        private string deptName;
        private string clsName;
        public frmClassChange()
        {
            InitializeComponent();
        }
        public frmClassChange(string departname,string classname)

        {
            InitializeComponent();
            this.deptName = departname;
            this.clsName = classname;
        }

        private void frmClassChange_Load(object sender, EventArgs e)
        {
            txtDept.Text = deptName;
            txtClassName.Text = clsName;
            SqlConnection conn = new SqlConnection();
            conn.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["connstr"].ConnectionString;
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = conn;
            cmd.CommandText = "select cNo from dbo.Class where cName='" + clsName + "'";
            conn.Open();
            txtClassNo.Text = cmd.ExecuteScalar().ToString();
            txtDept.Enabled = false;
            txtClassNo.Enabled = false;
        }

        private void btnChange_Click(object sender, EventArgs e)
        {
            SqlConnection conn = new SqlConnection();
            conn.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["connstr"].ConnectionString;
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = conn;
            cmd.CommandText = "update class set cName='" + txtClassName.Text + "' where cNo='" + txtClassNo.Text + "'";
            conn.Open();
            cmd.ExecuteNonQuery();
            conn.Close();
            MessageBox.Show("班级信息已修改");
            this.Dispose();
        }

        private void btnCancel_Click(object sender, EventArgs e)
        {
            this.Dispose();