questionmanage.aspx.cs

用ASP.NET（C#）、SQL Server2000数据库开发在线考试系统源代码

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 ExamineSystem
{
	/// <summary>
	/// Summary description for QuestionManage.
	/// </summary>
	public class QuestionManage : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DropDownList QuesKindList;
		protected System.Web.UI.WebControls.ListBox QuestionList;
		protected System.Web.UI.WebControls.Button AddQuesAnswer;
		protected System.Web.UI.WebControls.Button UpdateQuestion;
		protected System.Web.UI.WebControls.Button DeleteQuestion;
		protected System.Web.UI.WebControls.Button EditAnswer;
		protected System.Web.UI.WebControls.Button DeleteAnswer;
		protected System.Web.UI.HtmlControls.HtmlGenericControl title;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			///验证用户的权限
			if(Session["UserID"] == null)
			{
				Response.Redirect("~/Default.aspx");
			}
			

			if(!Page.IsPostBack)
			{
				BindQuesKindData();
				if(QuesKindList.Items.Count > 0)
				{
					BindQuestionData(Int32.Parse(QuesKindList.SelectedValue));
				}
			}
		}

		private void BindQuesKindData()
		{
			QuesKindList.Items.Clear();

			QuestionDB question = new QuestionDB();
			SqlDataReader rect = question.GetQuestionKinds();

			QuesKindList.DataSource = rect;
			QuesKindList.DataTextField = "KindName";
			QuesKindList.DataValueField = "KindID";
			QuesKindList.DataBind();

			rect.Close();
		}

		private void BindQuestionData(int nQuestionKindID)
		{
			QuestionList.Items.Clear();
			QuestionDB question = new QuestionDB();
			SqlDataReader recq = question.GetQuestions(nQuestionKindID);

			QuestionList.DataSource = recq;
			QuestionList.DataTextField = "Title";
			QuestionList.DataValueField = "QuestionID";
			QuestionList.DataBind();

			recq.Close();
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.QuesKindList.SelectedIndexChanged += new System.EventHandler(this.QuesKindList_SelectedIndexChanged);
			this.AddQuesAnswer.Click += new System.EventHandler(this.AddQuesAnswer_Click);
			this.UpdateQuestion.Click += new System.EventHandler(this.UpdateQuestion_Click);
			this.DeleteQuestion.Click += new System.EventHandler(this.DeleteQuestion_Click);
			this.EditAnswer.Click += new System.EventHandler(this.EditAnswer_Click);
			this.DeleteAnswer.Click += new System.EventHandler(this.DeleteAnswer_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void AddQuesAnswer_Click(object sender, System.EventArgs e)
		{
			if(QuestionList.SelectedIndex > -1)
			{
				Response.Redirect("~/Admins/AddAnswer.aspx?QuestionID=" + QuestionList.SelectedValue);
			}
			else
			{
				Response.Write("<script>alert(\"请选择你的数据项！\")</script>");
			}
		}

		private void QuesKindList_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			if(QuesKindList.Items.Count > 0)
			{
				BindQuestionData(Int32.Parse(QuesKindList.SelectedValue));
			}
			else
			{
				QuestionList.Items.Clear();
			}
		}

		private void UpdateQuestion_Click(object sender, System.EventArgs e)
		{
			if(QuestionList.SelectedIndex > -1)
			{
				Response.Redirect("~/Admins/EditQuestion.aspx?QuestionID=" + QuestionList.SelectedValue);
			}
			else
			{
				Response.Write("<script>alert(\"请选择你的数据项！\")</script>");
			}
		}

		private void DeleteQuestion_Click(object sender, System.EventArgs e)
		{
			if(QuestionList.SelectedIndex > -1)
			{
				Response.Redirect("~/Admins/DeleteQuestion.aspx?QuestionID=" + QuestionList.SelectedValue);
			}
			else
			{
				Response.Write("<script>alert(\"请选择你的数据项！\")</script>");
			}		
		}

		private void EditAnswer_Click(object sender, System.EventArgs e)
		{
			if(QuestionList.SelectedIndex > -1)
			{
				Response.Redirect("~/Admins/EditAnswer.aspx?QuestionID=" + QuestionList.SelectedValue);
			}
			else
			{
				Response.Write("<script>alert(\"请选择你的数据项！\")</script>");
			}		
		}

		private void DeleteAnswer_Click(object sender, System.EventArgs e)
		{
			if(QuestionList.SelectedIndex > -1)
			{
				Response.Redirect("~/Admins/DeleteAnswer.aspx?QuestionID=" + QuestionList.SelectedValue);
			}
			else
			{
				Response.Write("<script>alert(\"请选择你的数据项！\")</script>");
			}		
		}
	}
}