assigncourse.aspx.cs

一个比较小型的学生管理系统

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace sms
{
	/// <summary>
	/// assigncourse 的摘要说明。
	/// </summary>
	public partial class assigncourse : System.Web.UI.Page
	{
        private DataAccess DataAs;
		protected void Page_Load(object sender, System.EventArgs e)
		{
            //教师名称下拉列表框绑定
			if(!IsPostBack)
			{
				string mysql="select * from teacher";
                DataAs = new DataAccess();
                DataTable DT = DataAs.CreateDatatable(mysql);
                for (int i = 0; i < DT.Rows.Count;i++ )
                {
                    Ddl_teacher.Items.Add(new ListItem(DT.Rows[i][1].ToString(), DT.Rows[i][0].ToString()));
                }
				//课程名称下拉列表框绑定
				string mysql1="select * from course";
                DataTable DT2 = DataAs.CreateDatatable(mysql1);
                for (int i = 0; i < DT2.Rows.Count;i++ )
                {
                    Ddl_course.Items.Add(new ListItem(DT2.Rows[i][1].ToString(), DT2.Rows[i][0].ToString()));
                }
				//班级名称下拉列表框绑定
				string mysql2="select * from class";
                DataTable DT3 = DataAs.CreateDatatable(mysql2);
				Ddl_class.Items .Add (new ListItem("","") );
                for (int i = 0; i < DT3.Rows.Count;i++ )
                {
                    Ddl_class.Items.Add(new ListItem(DT3.Rows[i][1].ToString(), DT3.Rows[i][0].ToString()));
                }
			}
			// 在此处放置用户代码以初始化页面

		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN：该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    

		}
		#endregion

		protected void Btn_ok_Click(object sender, System.EventArgs e)
		{
            string strsql = "insert into teacher_course(Record_id,Teacher_id,Course_id,Class_id,Course_year) values("+Tbx_id.Text+",'"+Ddl_teacher.SelectedItem.Value + "','" + Ddl_course.SelectedItem.Value +
                              "','" + Ddl_class.SelectedItem.Value + "','" + Tbx_year.Text + "')";

            DataAs = new DataAccess();
            bool Result = DataAs.ExecSql(strsql);
			if (Result)
			{
				Lbl_note.Text="添加成功，请返回";
				
			}
			else
			{
				Lbl_note.Text="添加失败";
				Lbl_note.Style["color"]="red";
			}	
		}
        protected void TextBox1_TextChanged(object sender, EventArgs e)
        {

        }
}
}