admingradeadd.aspx.cs

学生成绩管理系统 vb.net+数据库

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
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.Data.SqlClient;

namespace GradeMis
{
	/// <summary>
	/// AdminGradeAdd 的摘要说明。
	/// </summary>
	public class AdminGradeAdd : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.DataGrid DataGrid2;
		private SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["GradeSys"]);
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			GetClassName();
			try
			{
				if(Request.QueryString["Action"].ToString()=="Add")
				{
					GetStu();
				}
			}
			catch
			{}
			
		}

		#region 
		private void GetClassName()
		{
			string sql = string.Empty;
			sql = string.Format("select 班级名 from 学生信息表 group by 班级名");
			SqlDataAdapter da = new SqlDataAdapter(sql,conn);
			DataSet ds = new DataSet();
			try
			{
				da.Fill(ds,"t");
				this.DataGrid1.DataSource = ds.Tables["t"];
				this.DataGrid1.DataBind();
			}
			catch
			{}
		}
		#endregion


		#region 
		private void GetStu()
		{
			string sql = string.Empty;
			sql = string.Format("select 学号,姓名,性别,班级名,所在院系 from 学生信息表 where 班级名='{0}'",Request.QueryString["班级名"].ToString());
			SqlDataAdapter da = new SqlDataAdapter(sql,conn);
			DataSet ds = new DataSet();
			try
			{
				da.Fill(ds,"t");
				this.DataGrid2.DataSource = ds.Tables["t"];
				this.DataGrid2.DataBind();
			}
			catch(Exception ex)
			{
				Response.Write(ex);
			}
		}
		#endregion

		#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.DataGrid1.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid1_PageIndexChanged);
			this.DataGrid2.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid2_PageIndexChanged);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

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

		}

		private void DataGrid2_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			this.DataGrid2.CurrentPageIndex = e.NewPageIndex;
			GetStu();

		}
	}
}