stueditor.aspx.cs

一款很好的在线考试系统的毕业设计

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 OLTestS
{
	/// <summary>
	/// StuEditor 的摘要说明。
	/// </summary>
	public class StuEditor : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.Label Label4;
		protected System.Web.UI.WebControls.TextBox TextBox3;
		protected System.Web.UI.WebControls.TextBox TextBox4;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator3;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator4;
		protected System.Web.UI.WebControls.CompareValidator CompareValidator1;
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.Button Button2;
		protected System.Web.UI.WebControls.TextBox TextBox2;
		protected System.Web.UI.WebControls.Label Label5;
		SqlDataAdapter da;
		DataSet ds;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(!Page.IsPostBack)
			{
				if (Convert.ToInt32(Session["Select"])==0)
				{
				}
				else
				{
				 BindData();
					TextBox1.Text=Session["Select"].ToString();
					TextBox2.Text=ds.Tables[0].Rows[0]["StuName"].ToString();
				
				}
			}
			
		}

		#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.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Button2.Click += new System.EventHandler(this.Button2_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
		private void BindData()
		{
			string cn="server=.;uid=sa;database=nTest";
			da = new SqlDataAdapter("Select * from Stu where StuNo='"+Session["Select"].ToString()+"'",cn);
			ds = new DataSet();
			da.Fill(ds);
		
		}

		private void Button1_Click(object sender, System.EventArgs e)
		{
			this.Validate();
			
			if (this.IsValid)
			{
				if (Convert.ToInt32(Session["Select"])==0)
				{
					string cn="server=.;uid=sa;database=nTest";
					SqlDataAdapter da = new SqlDataAdapter("Select * from Stu",cn);
					ds=new DataSet();
					da.Fill(ds);
					DataRow newRow=ds.Tables[0].NewRow();
				
					try
					{					
						newRow["StuNo"]=TextBox1.Text;		
						newRow["StuName"]=TextBox2.Text;
						newRow["Password"]=TextBox3.Text;

						SqlCommandBuilder scb=new SqlCommandBuilder(da);
						ds.Tables[0].Rows.Add(newRow);
						da.Update(ds);
						ds.AcceptChanges();

						Label5.Text="修改成功!";
					}
					catch
					{
						Label5.Text="修改失败!";
					}
				}
				else
				{
					try
					{
                         BindData();
						DataRow targetRow=ds.Tables[0].Rows[0];
						SqlCommandBuilder scb=new SqlCommandBuilder(da);
						targetRow.BeginEdit();
						targetRow["StuNo"]=TextBox1.Text;
						targetRow["StuName"]=TextBox2.Text;
						targetRow["Password"]=TextBox3.Text;
						targetRow.EndEdit();
						
						da.Update(ds);
						ds.AcceptChanges();
						
						Label5.Text="修改成功!";
		
					}
					catch (Exception ex)
					{
					 Label5.Text="修改失败!"+ex.Message;
					}
				}
			}

		}

		private void Button2_Click(object sender, System.EventArgs e)
		{
			
				this.Response.Redirect("StuInfor.aspx");
			
		}
	}
}