createexam.aspx.cs

试题库管理系统可按章节、题型对试题库进行排序并重新变更题号。添加题型库允许用户修改试题类型

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 examonline
{
	/// <summary>
	/// createexam 的摘要说明。
	/// </summary>
	public partial class createexam : System.Web.UI.Page
	{
	
		protected void Page_Load(object sender, System.EventArgs e)
		{
			if((bool)Session["IsLogined"]==false)
			{
				Response.Redirect("index.aspx");
			}
			
			lbTishi.Text=(string)Session["info"];
			Session["info"]="";
			if(Request.QueryString["step"]=="2")
			{
				tbStep1.Visible=false;
				TextBox txtTitle=new TextBox();
				TextBox txtQuestion=new TextBox();
				TextBox txtSolution=new TextBox();
				DropDownList ddlStyle=new DropDownList();
				ListItem item1=new ListItem("选择题","1");
				ddlStyle.Items.Add(item1);
				ListItem item2=new ListItem("填空题","2");
				ddlStyle.Items.Add(item2);
				ListItem item3=new ListItem("问答题","3");
				ddlStyle.Items.Add(item3);
				txtTitle.Width=350;
				txtQuestion.TextMode=TextBoxMode.MultiLine;
				txtQuestion.Width=350;
				txtQuestion.Height=300;
				txtSolution.Width=350;
				tbStep2.Rows[1].Cells[1].Controls.Add(ddlStyle);
				tbStep2.Rows[2].Cells[1].Controls.Add(txtTitle);
				tbStep2.Rows[3].Cells[1].Controls.Add(txtQuestion);
				tbStep2.Rows[4].Cells[1].Controls.Add(txtSolution);

				Button btnOkAndNext=new Button();
				btnOkAndNext.Click+=new System.EventHandler(this.btnOkAndNext_Click);
				btnOkAndNext.Text="提交该试题并开始下一题";
				tbStep2.Rows[5].Cells[0].Controls.Add(btnOkAndNext);

				Button btnComplete=new Button();
				btnComplete.Click+=new System.EventHandler(this.btnComplete_Click);
				btnComplete.Text="已全部完成";
				tbStep2.Rows[5].Cells[0].Controls.Add(btnComplete);
			}
			else
			{
				tbStep2.Visible=false;
				TextBox txtTitle=new TextBox();
				TextBox txtTesttime=new TextBox();
				TextBox txtHowtime=new TextBox();
				TextBox txtTester=new TextBox();
				TextBox txtTeacher=new TextBox();
				txtTitle.Width=350;
				txtTesttime.Width=350;
				txtHowtime.Width=350;
				txtTester.Width=350;
				txtTeacher.Width=350;
				
				tbStep1.Rows[1].Cells[1].Controls.Add(txtTitle);
				tbStep1.Rows[2].Cells[1].Controls.Add(txtTesttime);
				tbStep1.Rows[3].Cells[1].Controls.Add(txtHowtime);
				tbStep1.Rows[4].Cells[1].Controls.Add(txtTester);
				tbStep1.Rows[5].Cells[1].Controls.Add(txtTeacher);

				Button btnNextstep=new Button();
				btnNextstep.Click+=new System.EventHandler(this.btnNextstep_Click);
				btnNextstep.Text="提交以上信息并开始录入试题";
				tbStep1.Rows[6].Cells[0].Controls.Add(btnNextstep);
			}
		}

		#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()
		{    

		}
		#endregion

		private void btnNextstep_Click(object sender, System.EventArgs e)
		{
			TextBox title=(TextBox)tbStep1.Rows[1].Cells[1].Controls[0];
			TextBox Testtime=(TextBox)tbStep1.Rows[2].Cells[1].Controls[0];
			TextBox Howtime=(TextBox)tbStep1.Rows[3].Cells[1].Controls[0];
			TextBox Tester=(TextBox)tbStep1.Rows[4].Cells[1].Controls[0];
			TextBox Teacher=(TextBox)tbStep1.Rows[5].Cells[1].Controls[0];
			if(title.Text=="")
			{
				Session["info"]="试卷名不能为空！";
				Response.Redirect("createexam.aspx?step=1");
				Response.End();
			}
			string temp="";
			SqlConnection cn =new SqlConnection("server=(local);uid=sa;pwd=51aspx;database=examonline");
			string sql = "insert into exam (exam_title,create_time,test_time,many_time,tester,teacher) values ('"+HTMLEncode(title.Text)+"','"+DateTime.Now+"','"+Testtime.Text+"','"+HTMLEncode(Howtime.Text)+"','"+HTMLEncode(Tester.Text)+"','"+HTMLEncode(Teacher.Text)+"') SELECT CAST(scope_identity() AS int)";
			SqlCommand cmd = new SqlCommand(sql,cn);
			try
			{
				cn.Open();
				temp=cmd.ExecuteScalar().ToString();
			}
			catch(SqlException ex)
			{
				Session["info"]="数据库错误：" + ex.Message.ToString();
			}
			finally
			{
				cn.Close();
			}
			if(temp!="")
			{
				Response.Redirect("createexam.aspx?step=2&id="+temp);
			}
			else
			{
				Session["info"]="出错了，请确认你输入的数据格式正确！";
				Response.Redirect("createexam.aspx?step=1");
				Response.End();
			}
		}

		private void btnOkAndNext_Click(object sender, System.EventArgs e)
		{
			DropDownList style=(DropDownList)tbStep2.Rows[1].Cells[1].Controls[0];
			TextBox title=(TextBox)tbStep2.Rows[2].Cells[1].Controls[0];
			TextBox question=(TextBox)tbStep2.Rows[3].Cells[1].Controls[0];
			TextBox solution=(TextBox)tbStep2.Rows[4].Cells[1].Controls[0];
			if(question.Text==""||style.SelectedValue=="")
			{
				Session["info"]="带&lt;font color=&quot;red&quot;&gt;*&lt;/font&gt;的不能为空！";
				Response.Redirect("createexam.aspx?step=2&id="+Request.QueryString["id"]);
				Response.End();
			}
			string sql="";
			switch(style.SelectedValue)
			{
				case "1":
					sql = "insert into selectItems (exam_id,title,createTime,question,solution) values ('"+Request.QueryString["id"]+"','"+HTMLEncode(title.Text)+"','"+DateTime.Now+"','"+HTMLEncode(question.Text)+"','"+HTMLEncode(solution.Text)+"')";
					break;
				case "2":
					sql = "insert into fillblank (exam_id,title,createTime,question,solution) values ('"+Request.QueryString["id"]+"','"+HTMLEncode(title.Text)+"','"+DateTime.Now+"','"+HTMLEncode(question.Text)+"','"+HTMLEncode(solution.Text)+"')";
					break;
				case "3":
					sql = "insert into essay (exam_id,title,createTime,question,solution) values ('"+Request.QueryString["id"]+"','"+HTMLEncode(title.Text)+"','"+DateTime.Now+"','"+HTMLEncode(question.Text)+"','"+HTMLEncode(solution.Text)+"')";
					break;
				default:
					Session["info"]="出错了！";
					break;
			}
			SqlConnection cn =new SqlConnection("server=(local);uid=sa;pwd=51aspx;database=examonline");
			SqlCommand cmd = new SqlCommand(sql,cn);
			try
			{
				cn.Open();
				cmd.ExecuteNonQuery();
			}
			catch(SqlException ex)
			{
				Session["info"]="数据库错误：" + ex.Message.ToString();
			}
			finally
			{
				cn.Close();
			}
			Response.Redirect("createexam.aspx?step=2&id="+Request.QueryString["id"]);
		}
		private void btnComplete_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("showexam.aspx");
		}
		private string HTMLEncode(string fString)
		{
			if(fString!=null)
			{
				fString = fString.Replace( ">", "&gt;");
				fString = fString.Replace("<", "&lt;");
				fString = fString.Replace( " ", "&nbsp;");
				fString = fString.Replace( "\"", "&quot;");
				fString = fString.Replace( "\r", "");
				fString = fString.Replace( "\n" + "\n", "</P><P> ");
				fString = fString.Replace( "\n", "<BR> ");

				return (fString);
			}
			else
			{
				return("");
			}
		}
	}
}