questionmanager.aspx.cs

来自「本在线考试系统采用了面向对象的分析和设计」· CS 代码 · 共 136 行

using System;
using System.Data;
using System.Configuration;
using System.Collections.Generic;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Text.RegularExpressions;
using ExaminationSystem.BLL.Domain;
using ExaminationSystem.BLL.Service;
using ExaminationSystem.Web;

public partial class Admin_ChapterTree : System.Web.UI.Page
{

    protected void Page_Load(object sender, EventArgs e)
    {
       EditTreeView1.DeleteClick+=DeleteChapter;
       EditTreeView1.UpdateClick += UpdateChapter;
       EditTreeView1.InsertClick += InsertChapter;
       EditTreeView1.AddRootClick += AddRootChapter;
       EditTreeView1.SelectedNodeChanged += Tree_SelectedNodeChanged;
        if (!IsPostBack)
        {
            ChapterNode root = new ChapterNode(long.Parse(Request.QueryString["SubjectId"].ToString()));
            EditTreeView1.CreateTreeView(root);
            BindQuestionList();
        }
    }

    #region TreeView
    

    private Subject Subject
    {
        get
        {
            return new SubjectService().GetById(long.Parse(Request.QueryString["SubjectId"].ToString()));
        }
    }
   void DeleteChapter(long deleteId)
    {
        new ChapterService().DeleteById(deleteId);
    }
    void UpdateChapter(string newText, long updateId)
    {
        Chapter chapter = new ChapterService().GetById(updateId);
        chapter.Name = newText;
        new ChapterService().Update(chapter);
    }
    void InsertChapter(string text, long parentId,out long newId)
    {
        Chapter chapter = new Chapter();
        Chapter parent = new ChapterService().GetById(parentId);
        chapter.Name = text;
        chapter.Parent = parent;
        chapter.Subject = Subject;
        new ChapterService().Save(chapter);

        newId = chapter.ID;

    }
    void AddRootChapter(string text, out long rootId)
    {
        Chapter chapter = new Chapter();
        chapter.Subject = Subject;
        chapter.Name = EditTreeView1.RootNodeTextBox.Text;
        new ChapterService().Save(chapter);
        rootId = chapter.ID;
    }

    #endregion
    #region QuestionList

    private void BindQuestionList()
    {

        SetSubject();  
        Hard hard = GetSelectedHard();
        Chapter chapter = GetSelectedChapter();
        if (chapter == null)
            return;
        IList<QuestionContent> sourceQuestionList = chapter.QuestionContents;
        IList<QuestionContent> resultQuestionList = new List<QuestionContent>();
        foreach (QuestionContent question in sourceQuestionList)
        {
            if (question.QuestionType==questionTypeDD.SelectedValue && question.Hard == hard)
                resultQuestionList.Add(question);
        }
        GridView1.DataSource = resultQuestionList;
        GridView1.DataBind();

        questionTypeLB.Text = questionTypeDD.SelectedItem.Text;
       
    }

    private void SetSubject()
    { 
        subjectLB.Text = Subject.Name;
    }
    private Hard GetSelectedHard()
    { 
        hardLB.Text = hardDD.SelectedItem.Text;
        return (Hard)int.Parse(hardDD.SelectedValue);
    }
    private Chapter GetSelectedChapter()
    {
        chapterLB.Text = "请选择";
        if (EditTreeView1.SelectedNode == null)
            return null;
        else
        {
            long chapterId = long.Parse(EditTreeView1.SelectedNode.Value);
            Chapter chapter = new ChapterService().GetById(chapterId);
            chapterLB.Text = chapter.Name;
            return chapter;
        }
    } 
    protected void Tree_SelectedNodeChanged(object sender, EventArgs e)
    {
        BindQuestionList();
    }  
    protected void questionTypeDD_SelectedIndexChanged(object sender, EventArgs e)
    {
        BindQuestionList();
    }
    protected void hardDD_SelectedIndexChanged(object sender, EventArgs e)
    {
        BindQuestionList();
    }
    #endregion
}