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课程设计说明书 NO. 16

（5）老师录入成绩页面，如图10所示。

图10 老师录入成绩页面果

using System;

using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI;

using System.Web.UI.WebControls; using System.Data.SqlClient;

public partial class TeaInput : System.Web.UI.Page {

protected void Page_Load(object sender, EventArgs e) { }

protected void TextBox5_TextChanged(object sender, EventArgs e) { }

protected void Button1_Click(object sender, EventArgs e) {

//string uid = id.Text.Trim(); string xuehao = xh.Text.Trim(); string xingming = xm.Text.Trim(); string banji = Bj.Text.Trim(); string xueqi = xq.Text.Trim();

沈 阳 大 学

课程设计说明书 NO. 17

string ke = kmm.Text.Trim(); string chengji = cj.Text.Trim(); string shijian = rq.Text.Trim();

string sql = \ values(@xh,@xm,@Bj,@xq,@kmm,@cj,@rq)\

SqlParameter[] parameters = {// new SqlParameter(\

new SqlParameter(\ new SqlParameter(\ new SqlParameter(\ new SqlParameter(\ new SqlParameter(\ new SqlParameter(\ new SqlParameter(\ using (SqlConnection conn = new SqlConnection(\Security=SSPI;database=学生成绩管理;\ {

conn.Open();

using (SqlCommand cmd = conn.CreateCommand())//tsql {

cmd.CommandText = sql;

cmd.Parameters.AddRange(parameters); cmd.ExecuteNonQuery(); } } }

protected void Button2_Click1(object sender, System.EventArgs e) {

Response.Redirect(\返回 } }

沈 阳 大 学

课程设计说明书 NO. 18

（6）学生成绩查询，如图11所示。

图11 学生成绩查询

using System;

using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI;

using System.Web.UI.WebControls; using System.Data;

using System.Data.SqlClient; using System.Data.OleDb;

public partial class stu : System.Web.UI.Page {

protected void Page_Load(object sender, EventArgs e) {

lb.Text = (string)Session[\ }

protected void Button3_Click(object sender, EventArgs e) {

Response.Redirect(\ }

protected void Button1_Click(object sender, EventArgs e) {

SqlConnection conn = new SqlConnection(\Security=SSPI;database=学生成绩管理;\

string km = kmm.Text;

// string cheng= chengji.Text; conn.Open();

SqlCommand comm = new SqlCommand(\ \

DataSet ds = new DataSet();

沈 阳 大 学

课程设计说明书 NO. 19

SqlDataReader dr = comm.ExecuteReader(); if (dr.Read()) {

this.chengji.Text = dr.GetString(dr.GetOrdinal(\获得数据 } } }

（7）老师统计成绩查询，如图12所示。

图12 老师统计成绩查询

using System;

using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI;

using System.Web.UI.WebControls; using System.Data.Odbc; using System.Data;

using System.Data.SqlClient;

public partial class tea : System.Web.UI.Page {

protected void Page_Load(object sender, EventArgs e) { }

protected void Button1_Click(object sender, EventArgs e) {

Response.Redirect(\成绩页面 }

protected void Button2_Click(object sender, EventArgs e) {

沈 阳 大 学

课程设计说明书 NO. 20

Response.Redirect(\修改页面 }

protected void TextBox1_TextChanged(object sender, EventArgs e) { }

protected void Button3_Click(object sender, EventArgs e) {

SqlConnection conn = new SqlConnection(\Security=SSPI;database=学生成绩管理;\

string KMM = TextBox1.Text; conn.Open();

SqlCommand comm = new SqlCommand(\+ \

DataSet ds = new DataSet();

SqlDataReader dr = comm.ExecuteReader(); if (dr.Read()) {

//获得数据

this.TextBox2.Text = dr.GetString(dr.GetOrdinal(\ } }

protected void Button4_Click(object sender, EventArgs e) {

SqlConnection conn = new SqlConnection(\Security=SSPI;database=学生成绩管理;\

conn.Open();

SqlCommand comm = new SqlCommand(\ Bj,kmm,avg(cj) as avgcj from chengji group by Bj,kmm order by avgcj desc;\

DataSet ds = new DataSet();

SqlDataReader dr = comm.ExecuteReader(); if (dr.Read()) {

//获得数据

this.TextBox4.Text = dr.GetString(dr.GetOrdinal(\ } }

protected void TextBox4_TextChanged(object sender, EventArgs e) { }

protected void TextBox2_TextChanged(object sender, EventArgs e)

沈 阳 大 学