course_student.aspx.cs

一个学生管理系统的C++源程序

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>
	/// course_student 的摘要说明。
	/// </summary>
	public class course_student : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox Tbx_name;
		protected System.Web.UI.WebControls.TextBox Tbx_id;
		protected System.Web.UI.WebControls.Button Btn_search;
		protected System.Web.UI.WebControls.DataGrid Dgd_course;
		protected System.Web.UI.WebControls.Label Lbl_note;
		protected System.Web.UI.WebControls.Button Btn_exit;
	    SqlConnection cn;
		protected System.Web.UI.WebControls.Button Btn_grade;
		protected System.Web.UI.WebControls.Button Btn_course;
		protected System.Web.UI.WebControls.Button Btn_personnel;
		protected System.Web.UI.WebControls.Button Btn_see;
		protected System.Web.UI.WebControls.Button Btn_information;
		string strsql;
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			string strconn= ConfigurationSettings.AppSettings["dsn"];
			cn=new SqlConnection(strconn);	
			if(!IsPostBack) 
				Bindgrid();
		}

		#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()
		{    
			this.Btn_information.Click += new System.EventHandler(this.Btn_information_Click);
			this.Btn_see.Click += new System.EventHandler(this.Btn_see_Click);
			this.Btn_personnel.Click += new System.EventHandler(this.Btn_personnel_Click);
			this.Btn_course.Click += new System.EventHandler(this.Btn_course_Click);
			this.Btn_grade.Click += new System.EventHandler(this.Btn_grade_Click);
			this.Btn_search.Click += new System.EventHandler(this.Btn_search_Click);
			this.Btn_exit.Click += new System.EventHandler(this.Btn_exit_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
	
		public void DataGrid_Page(object sender,DataGridPageChangedEventArgs e)
		{
			Dgd_course.CurrentPageIndex=e.NewPageIndex;
			Bindgrid();
		}	
		public void Bindgrid()
		{
			strsql="select * from course";
			SqlDataAdapter da=new SqlDataAdapter(strsql,cn);
			DataSet ds=new DataSet();
			da.Fill(ds);
			Dgd_course.DataSource=ds;
			Dgd_course.DataBind();
		}

		private void Btn_search_Click(object sender, System.EventArgs e)
		{
			strsql="select * from course  where Course_id='"+Tbx_id.Text+"'or Course_name='"+Tbx_name.Text+"'";
			SqlDataAdapter da=new SqlDataAdapter(strsql,cn);
			DataSet ds=new DataSet();
			da.Fill(ds);
			Dgd_course.DataSource=ds;
			Dgd_course.DataBind();
		}

		private void Btn_exit_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("query.aspx");
		}

		private void Btn_information_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("query.aspx");
		
		}

		private void Btn_see_Click(object sender, System.EventArgs e)
		{
		Response.Redirect("sortcourse.aspx");
		}

		private void Btn_personnel_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("updatepwd.aspx");
		}

		private void Btn_course_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("course_student.aspx");
		}

		private void Btn_grade_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("grade_query.aspx");
		}

	}
}