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.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Configuration;

namespace sms
{
    //该源码下载自www.51aspx.com(５１ａｓｐｘ．ｃｏｍ)

	/// <summary>
	/// student 的摘要说明。
	/// </summary>
	public class student : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.LinkButton Lbtn_course;
		protected System.Web.UI.WebControls.LinkButton Lbtn_sortcourse;
		protected System.Web.UI.WebControls.DataGrid Dgd_student;
		protected System.Web.UI.WebControls.Button Btn_all;
		protected System.Web.UI.WebControls.Panel Pnl_sort;
		protected System.Web.UI.WebControls.TextBox Tbx_sortid;
		protected System.Web.UI.WebControls.Button Btn_ok;
		SqlConnection cn;
		protected System.Web.UI.WebControls.Button Btn_search;
		protected System.Web.UI.WebControls.Label Lbl_note;
		protected System.Web.UI.WebControls.LinkButton Lbtn_add;
		protected System.Web.UI.WebControls.TextBox Tbx_name;
		protected System.Web.UI.WebControls.Button Btn_exit;
		protected System.Web.UI.WebControls.LinkButton Lbtn_grade;
		protected System.Web.UI.WebControls.LinkButton Lbtn_addclass;
		protected System.Web.UI.WebControls.LinkButton Lbtn_addteacher;
		protected System.Web.UI.WebControls.LinkButton Lbtn_student;
		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.Lbtn_addclass.Click += new System.EventHandler(this.Lbtn_addclass_Click);
			this.Lbtn_addteacher.Click += new System.EventHandler(this.Lbtn_addteacher_Click);
			this.Lbtn_course.Click += new System.EventHandler(this.Lbtn_course_Click);
			this.Lbtn_sortcourse.Click += new System.EventHandler(this.Lbtn_sortcourse_Click);
			this.Lbtn_grade.Click += new System.EventHandler(this.Lbtn_grade_Click);
			this.Btn_search.Click += new System.EventHandler(this.Btn_search_Click);
			this.Btn_ok.Click += new System.EventHandler(this.Btn_ok_Click);
			this.Lbtn_add.Click += new System.EventHandler(this.Lbtn_add_Click);
			this.Btn_all.Click += new System.EventHandler(this.Btn_all_Click);
			this.Btn_exit.Click += new System.EventHandler(this.Btn_exit_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Btn_search_Click(object sender, System.EventArgs e)
		{  
			Pnl_sort.Visible=true;
		}

		private void Btn_all_Click(object sender, System.EventArgs e)
		{  
			
			Pnl_sort.Visible=false;
			Bindgrid();
		
		}
		public void DataGrid_Page(object sender,DataGridPageChangedEventArgs e)
		{
			Dgd_student.CurrentPageIndex=e.NewPageIndex;
			Bindgrid();
		}
		public void DataGrid_cancel(object sender,DataGridCommandEventArgs e)
		{
			
			Dgd_student.EditItemIndex=-1;
			Bindgrid();
			
		}
		public void DataGrid_edit(object sender,DataGridCommandEventArgs e)
		{
			
				Dgd_student.EditItemIndex=(int)e.Item.ItemIndex;
		
				Bindgrid();
			
		}
		public void DataGrid_update(object sender,DataGridCommandEventArgs e)
		{
			string strsql="update student set Student_name=@Student_name,Student_sex=@Student_sex,Student_nation=@Student_nation,Student_birthday=@Student_birthday,Student_time=@Student_time,Student_classid=@Student_classid,Student_home=@Student_home,Student_else=@Student_else where Student_id=@Student_id";
			SqlCommand cm=new SqlCommand(strsql,cn);
			try
			{
			cm.Parameters.Add(new SqlParameter("@Student_name",SqlDbType.VarChar,50));
			cm.Parameters.Add(new SqlParameter("@Student_sex",SqlDbType.Char,10));
		    cm.Parameters.Add(new SqlParameter("@Student_nation",SqlDbType.Char,10));
			cm.Parameters.Add(new SqlParameter("@Student_birthday",SqlDbType.DateTime,8));
			cm.Parameters.Add(new SqlParameter("@Student_time",SqlDbType.DateTime,8));
			cm.Parameters.Add(new SqlParameter("@Student_classid",SqlDbType.VarChar,50));
			cm.Parameters.Add(new SqlParameter("@Student_home",SqlDbType.VarChar,50));
			cm.Parameters.Add(new SqlParameter("@Student_else",SqlDbType.VarChar,50));
			cm.Parameters.Add(new SqlParameter("@Student_id",SqlDbType.VarChar,50));
			string colvalue=((TextBox)e.Item.Cells[1].Controls[0]).Text;
			cm.Parameters["@Student_name"].Value=colvalue;
			colvalue=((TextBox)e.Item.Cells[2].Controls[0]).Text;
			cm.Parameters["@Student_sex"].Value=colvalue;
			colvalue=((TextBox)e.Item.Cells[3].Controls[0]).Text;
			cm.Parameters["@Student_nation"].Value=colvalue;
		colvalue=((TextBox)e.Item.Cells[4].Controls[0]).Text;
			cm.Parameters["@Student_birthday"].Value=colvalue;
			colvalue=((TextBox)e.Item.Cells[5].Controls[0]).Text;
			cm.Parameters["@Student_time"].Value=colvalue;
			colvalue=((TextBox)e.Item.Cells[6].Controls[0]).Text;
			cm.Parameters["@Student_classid"].Value=colvalue;
			colvalue=((TextBox)e.Item.Cells[7].Controls[0]).Text;
			cm.Parameters["@Student_home"].Value=colvalue;
			colvalue=((TextBox)e.Item.Cells[8].Controls[0]).Text;
			cm.Parameters["@Student_else"].Value=colvalue;			
			cm.Parameters["@Student_id"].Value=Dgd_student.DataKeys[(int)e.Item.ItemIndex];
			cm.Connection.Open();			
				cm.ExecuteNonQuery();
				Lbl_note.Text="编辑成功";
				Dgd_student.EditItemIndex=-1;
			}
			catch
			{
				Lbl_note.Text="编辑失败，请检查输入！";
				Lbl_note.Style["color"]="red";
			}
			cm.Connection.Close();		
			Bindgrid();
			
		}
		
		public void DataGrid_delete(object sender,DataGridCommandEventArgs e)
		{
			
			string strsql="delete from student where Student_id=@userid";
			SqlCommand cm=new SqlCommand(strsql,cn);
			cm.Parameters.Add(new SqlParameter("@userid",SqlDbType.VarChar,50));
			cm.Parameters["@userid"].Value=Dgd_student.DataKeys[(int)e.Item.ItemIndex];
			cm.Connection.Open();
			try
			{
				cm.ExecuteNonQuery();
				Lbl_note.Text="删除成功";
				
			}
			catch(SqlException)
			{
				Lbl_note.Text="删除失败";
				Lbl_note.Style["color"]="red";
			}
			cm.Connection.Close();			
			Bindgrid();
		}

		public void Bindgrid()
		{  	strsql="select * from student";
			SqlDataAdapter da=new SqlDataAdapter(strsql,cn);
			DataSet ds=new DataSet();
			da.Fill(ds);
			Dgd_student.DataSource=ds;
			Dgd_student.DataBind();
		}				

		private void Btn_ok_Click(object sender, System.EventArgs e)
		{  
			
		    strsql="select * from student  where Student_id='"+Tbx_sortid.Text+"'or Student_name='"+Tbx_name.Text+"'";
			SqlDataAdapter da=new SqlDataAdapter(strsql,cn);
			DataSet ds=new DataSet();
			da.Fill(ds);
			Dgd_student.DataSource=ds;
			Dgd_student.DataBind();
		}

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

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

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

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

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

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

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

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