225 lines
8.5 KiB
C#
225 lines
8.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Web;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using WeiSha.Common;
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using WeiSha.WebControl;
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using Song.ServiceInterfaces;
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using Song.Entities;
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namespace Song.Site.Manage.Course
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{
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public partial class Courses_Edit : Extend.CustomPage
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{
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//课程id
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private int couid = WeiSha.Common.Request.QueryString["couid"].Int32 ?? 0;
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//上传资料的所有路径
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private string _uppath = "Course";
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Song.Entities.Organization org;
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protected void Page_Load(object sender, EventArgs e)
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{
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//隐藏确定按钮
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EnterButton btnEnter = (EnterButton)Master.FindControl("btnEnter");
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btnEnter.Visible = couid > 0;
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org = Business.Do<IOrganization>().OrganCurrent();
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if (!this.IsPostBack)
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{
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InitBind();
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fill();
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}
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this.Master.Enter_Click += btnEnter_Click;
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this.Master.Next_Click += btnNext_Click;
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}
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#region 初始化
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/// <summary>
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/// 界面的初始绑定
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/// </summary>
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private void InitBind()
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{
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//所属专业
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Song.Entities.Subject[] sbjs = Business.Do<ISubject>().SubjectCount(org.Org_ID, null, true, -1, -1);
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ddlSubject.DataSource = sbjs;
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this.ddlSubject.DataTextField = "Sbj_Name";
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this.ddlSubject.DataValueField = "Sbj_ID";
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this.ddlSubject.Root = 0;
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this.ddlSubject.DataBind();
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if (ddlSubject.Items.Count < 1)
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{
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ddlSubject.Items.Add(new ListItem("--（没有专业）--","-1"));
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}
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ddlSubject.Items.Insert(0,new ListItem("--所属专业--", "-1"));
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}
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/// <summary>
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/// 当专业选择改变时
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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protected void ddlSubject_SelectedIndexChanged(object sender, EventArgs e)
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{
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int sbjid;
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int.TryParse(ddlSubject.SelectedValue, out sbjid);
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//上级
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List<Song.Entities.Course> cous = Business.Do<ICourse>().CourseCount(org.Org_ID, sbjid, null, true, -1);
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ddlTree.DataSource = cous;
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this.ddlTree.DataTextField = "Cou_Name";
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this.ddlTree.DataValueField = "Cou_ID";
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this.ddlTree.Root = 0;
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this.ddlTree.DataBind();
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//
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ddlTree.Items.Insert(0, new ListItem(" -- 顶级 --", "0"));
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}
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#endregion
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private void fill()
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{
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Song.Entities.Course cou = couid < 1 ? new Song.Entities.Course() : Business.Do<ICourse>().CourseSingle(couid);
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if (cou == null) return;
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if (couid > 0)
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{
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cbIsUse.Checked = cou.Cou_IsUse; //启用
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cbIsRec.Checked = cou.Cou_IsRec; //推荐
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}
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Cou_Name.Text = cou.Cou_Name;
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//全局UID
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ViewState["UID"] = string.IsNullOrWhiteSpace(cou.Cou_UID) ? getUID() : cou.Cou_UID;
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//所属专业
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ListItem liSbj = ddlSubject.Items.FindByValue(cou.Sbj_ID.ToString());
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if (liSbj != null)
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{
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ddlSubject.SelectedIndex = -1;
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liSbj.Selected = true;
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}
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ddlSubject_SelectedIndexChanged(null, null);
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//上级课程
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ListItem liCou = ddlTree.Items.FindByValue(cou.Cou_PID.ToString());
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if (liCou != null)
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{
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ddlTree.SelectedIndex = -1;
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liCou.Selected = true;
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}
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//简介，学习目标
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tbIntro.Text = cou.Cou_Intro;
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tbTarget.Text = cou.Cou_Target;
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//课程图片
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if (!string.IsNullOrEmpty(cou.Cou_LogoSmall) && cou.Cou_LogoSmall.Trim() != "")
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{
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this.imgShow.Src = Upload.Get[_uppath].Virtual + cou.Cou_LogoSmall;
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}
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tbTax.Text = cou.Cou_Tax.ToString(); //排序号
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//访问人数
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tbViewNum.Text = cou.Cou_ViewNum.ToString();
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//学习人数
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lbStudentSum.Text = Business.Do<ICourse>().CourseStudentSum(couid, false).ToString();
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ltStudentSum.Text = Business.Do<ICourse>().CourseStudentSum(couid, true).ToString();
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}
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/// <summary>
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/// 保存按钮
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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protected void btnEnter_Click(object sender, EventArgs e)
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{
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Song.Entities.Course cou=this.Save();
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this.Alert("操作成功");
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}
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/// <summary>
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/// 下一步
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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protected void btnNext_Click(object sender, EventArgs e)
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{
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Song.Entities.Course cou = this.Save();
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Master.Couid = cou.Cou_ID;
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}
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/// <summary>
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/// 保存当前课程
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/// </summary>
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/// <returns></returns>
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private Song.Entities.Course Save()
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{
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Song.Entities.Course cou = couid < 1 ? new Song.Entities.Course() : Business.Do<ICourse>().CourseSingle(couid);
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if (cou == null) return null;
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try
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{
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//名称
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if (string.IsNullOrWhiteSpace(Cou_Name.Text.Trim())) throw new Exception("课程名称不可以为空");
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cou.Cou_Name = Cou_Name.Text.Trim();
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//排序号
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int tax = cou.Cou_Tax;
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int.TryParse(tbTax.Text, out tax);
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cou.Cou_Tax = tax;
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//访问人数
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int viewnum = 0;
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int.TryParse(tbViewNum.Text, out viewnum);
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cou.Cou_ViewNum = viewnum;
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//所属专业
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cou.Sbj_ID = Convert.ToInt32(ddlSubject.SelectedValue);
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if (cou.Sbj_ID <= 0) throw new Exception("课程必须隶属于某个专业");
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cou.Sbj_Name = ddlSubject.SelectedText;
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//上级
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cou.Cou_PID = Convert.ToInt32(ddlTree.SelectedValue);
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//简介，学习目标
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cou.Cou_Intro = tbIntro.Text;
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cou.Cou_Target = tbTarget.Text;
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//主图片
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if (fuLoad.PostedFile.FileName != "")
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{
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try
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{
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fuLoad.UpPath = _uppath;
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fuLoad.IsMakeSmall = true;
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fuLoad.IsConvertJpg = true;
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fuLoad.SmallWidth = 400;
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fuLoad.SmallHeight = fuLoad.SmallWidth * 9 / 16;
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fuLoad.SaveAndDeleteOld(cou.Cou_Logo);
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//截取图片宽高
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int width = fuLoad.File.Server.Width;
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width = width > 1000 ? 1000 : width;
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int height = width * 9 / 16; //宽高比为16:9
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fuLoad.File.Server.ChangeSize(width, height, false);
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cou.Cou_Logo = fuLoad.File.Server.FileName;
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cou.Cou_LogoSmall = fuLoad.File.Server.SmallFileName;
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//
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imgShow.Src = fuLoad.File.Server.VirtualPath;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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}
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cou.Cou_IsUse = cbIsUse.Checked; //启用
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cou.Cou_IsRec = cbIsRec.Checked; //推荐
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cou.Cou_UID = getUID();
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if (couid < 1)
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{
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//所属老师
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if (Extend.LoginState.Accounts.IsLogin)
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{
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Song.Entities.Teacher th = Extend.LoginState.Accounts.Teacher;
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if (th != null)
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{
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cou.Th_ID = th.Th_ID;
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cou.Th_Name = th.Th_Name;
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}
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}
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Business.Do<ICourse>().CourseAdd(cou);
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}
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else
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{
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Business.Do<ICourse>().CourseSave(cou);
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}
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this.Alert("操作成功");
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}
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catch (Exception ex)
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{
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this.Alert(ex.Message);
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}
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return cou;
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}
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}
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} |