schname2.aspx.cs

学生考勤管理系统学生考勤管理系统学生考勤管理系统学生考勤管理系统学生考勤管理系统

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;

namespace kqxt
{
	/// <summary>
	/// dysch 的摘要说明。
	/// </summary>
	public class dysch : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.DropDownList DropDownList1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.TextBox name;
		protected System.Web.UI.WebControls.ImageButton ImageButton1;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			object obj = Session["usersID"];
			string userid=obj.ToString();
			DataSet myds=new DataSet();
			if(!IsPostBack)
			{
				string conn=System.Configuration.ConfigurationSettings.AppSettings["connstr"];
				SqlConnection objconn=new SqlConnection(conn);
				
				string sqlstr="select classID from class,teacher where teacher.thID=class.thID and teacher.thID='"+userid+"'";
				//SqlCommand mycom=new SqlCommand(sqlstr,objconn);
				//objconn.Open();
				SqlDataAdapter mydata=new SqlDataAdapter(sqlstr,objconn);
				mydata.Fill(myds,"class");
				DropDownList1.DataSource=myds.Tables["class"].DefaultView;
				DropDownList1.DataTextField=myds.Tables["class"].Columns[0].ColumnName;
				DropDownList1.DataValueField=myds.Tables["class"].Columns[0].ColumnName;
				DropDownList1.DataBind();
				binddata();
			}
		}

		#region Web 窗体设计器生成的代码
		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.ImageButton1.Click += new System.Web.UI.ImageClickEventHandler(this.ImageButton1_Click);
			this.DataGrid1.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid1_PageIndexChanged);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
		private void binddata()
		{
			object obj = Session["usersID"];
			string userid=obj.ToString();
			DataSet myds=new DataSet();
			string conn=System.Configuration.ConfigurationSettings.AppSettings["connstr"];
			SqlConnection objconn=new SqlConnection(conn);
			string sqlstr="select distinct(student.stuID),stuName,status,dates,courseName from student,teacher,kaoqin,class where kaoqin.stuID=student.stuID and kaoqin.thID=teacher.thID and student.classID=class.classID and class.thID='"+userid+"'";
			SqlDataAdapter mydata=new SqlDataAdapter(sqlstr,objconn);
			mydata.Fill(myds,"kq");
			if(myds.Tables["kq"].Rows.Count>0)
			{
				DataGrid1.DataSource=myds.Tables["kq"].DefaultView;
				DataGrid1.DataBind();	
			}
		}
		private void ImageButton1_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			object obj = Session["usersID"];
			string userid=obj.ToString();
			string n=this.DropDownList1.SelectedItem.ToString();
			DataSet myds=new DataSet();
			string conn=System.Configuration.ConfigurationSettings.AppSettings["connstr"];
			SqlConnection objconn=new SqlConnection(conn);
			string sqlstr="select kaoqin.stuID,stuName,status,dates,teacher.courseName from student,teacher,kaoqin where kaoqin.stuID=student.stuID and kaoqin.thID=teacher.thID and student.stuName like '%"+this.name.Text+"%' and student.classID='"+n+"'";
			SqlDataAdapter mydata=new SqlDataAdapter(sqlstr,objconn);
			mydata.Fill(myds,"kq");
			if(myds.Tables["kq"].Rows.Count>0)
			{
				this.DataGrid1.Visible=true;
				this.Label3.Text="";
				DataGrid1.DataSource=myds.Tables["kq"].DefaultView;
				DataGrid1.DataBind();
				
			}
			else
			{
				this.Label3.Text="无记录!该学生或许不是您所管班级的学生,请验证后再进行查询!";
				this.DataGrid1.Visible=false;
			}
		}

		private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			this.DataGrid1.CurrentPageIndex=e.NewPageIndex;
			binddata();
		}
	}
}