ASP.NET-teaching-manager-information-system/Front_StudentSelectCourseInfo_List.aspx.cs at master · Scenx/ASP.NET-teaching-manager-information-system · GitHub

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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

namespace shuangyulin.Front
{
    public partial class Front_StudentSelectCourseInfo_List : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                BindStudent();
                BindCourseInfo();
                string sqlstr = " where 1=1 ";
                if (Request["studentNumber"] != null && Request["studentNumber"].ToString() != "")
                {
                    sqlstr += "  and studentNumber='" + Request["studentNumber"].ToString() + "'";
                    studentNumber.SelectedValue = Request["studentNumber"].ToString();
                }
                if (Request["courseNumber"] != null && Request["courseNumber"].ToString() != "")
                {
                    sqlstr += "  and courseNumber='" + Request["courseNumber"].ToString() + "'";
                    courseNumber.SelectedValue = Request["courseNumber"].ToString();
                }
                HWhere.Value = sqlstr;
                BindData("");
            }
        }
        private void BindStudent()
        {
            studentNumber.DataSource = BLL.bllStudent.getAllStudent();
            studentNumber.DataTextField = "studentName";
            studentNumber.DataValueField = "studentNumber";
            studentNumber.DataBind();
            ListItem li = new ListItem("=ÇëÑ¡Ôñ=", "");
            studentNumber.Items.Add(li);
            studentNumber.SelectedValue = "";
        }

        private void BindCourseInfo()
        {
            courseNumber.DataSource = BLL.bllCourseInfo.getAllCourseInfo();
            courseNumber.DataTextField = "courseName";
            courseNumber.DataValueField = "courseNumber";
            courseNumber.DataBind();
            ListItem li = new ListItem("=ÇëÑ¡Ôñ=", "");
            courseNumber.Items.Add(li);
            courseNumber.SelectedValue = "";
        }

        private void BindData(string strClass)
        {
            int DataCount = 0;
            int NowPage = 1;
            int AllPage = 0;
            int PageSize = Convert.ToInt32(HPageSize.Value);
            switch (strClass)
            {
                case "next":
                    NowPage = Convert.ToInt32(HNowPage.Value) + 1;
                    break;
                case "up":
                    NowPage = Convert.ToInt32(HNowPage.Value) - 1;
                    break;
                case "end":
                    NowPage = Convert.ToInt32(HAllPage.Value);
                    break;
                default:
                    break;
            }
            DataTable dsLog = BLL.bllStudentSelectCourseInfo.GetStudentSelectCourseInfo(NowPage, PageSize, out AllPage, out DataCount, HWhere.Value);
            if (dsLog.Rows.Count == 0 || AllPage == 1)
            {
                LBEnd.Enabled = false;
                LBHome.Enabled = false;
                LBNext.Enabled = false;
                LBUp.Enabled = false;
            }
            else if (NowPage == 1)
            {
                LBHome.Enabled = false;
                LBUp.Enabled = false;
                LBNext.Enabled = true;
                LBEnd.Enabled = true;
            }
            else if (NowPage == AllPage)
            {
                LBHome.Enabled = true;
                LBUp.Enabled = true;
                LBNext.Enabled = false;
                LBEnd.Enabled = false;
            }
            else
            {
                LBEnd.Enabled = true;
                LBHome.Enabled = true;
                LBNext.Enabled = true;
                LBUp.Enabled = true;
            }
            RpStudentSelectCourseInfo.DataSource = dsLog;
            RpStudentSelectCourseInfo.DataBind();
            PageMes.Text = string.Format("[Ã¿Ò³<font color=green>{0}</font>Ìõ µÚ<font color=red>{1}</font>Ò³£¯¹²<font color=green>{2}</font>Ò³   ¹²<font color=green>{3}</font>Ìõ]", PageSize, NowPage, AllPage, DataCount);
            HNowPage.Value = Convert.ToString(NowPage++);
            HAllPage.Value = AllPage.ToString();
        }

        protected void LBHome_Click(object sender, EventArgs e)
        {
            BindData("");
        }
        protected void LBUp_Click(object sender, EventArgs e)
        {
            BindData("up");
        }
        protected void LBNext_Click(object sender, EventArgs e)
        {
            BindData("next");
        }
        protected void LBEnd_Click(object sender, EventArgs e)
        {
            BindData("end");
        }
        public string GetStudentstudentNumber(string studentNumber)
        {
            return BLL.bllStudent.getSomeStudent(studentNumber).studentName;
        }

        public string GetCourseInfocourseNumber(string courseNumber)
        {
            return BLL.bllCourseInfo.getSomeCourseInfo(courseNumber).courseName;
        }

        protected void btnSearch_Click(object sender, EventArgs e)
        {
            Response.Redirect("Front_StudentSelectCourseInfo_List.aspx?studentNumber=" + studentNumber.SelectedValue.Trim() + "&&courseNumber=" + courseNumber.SelectedValue.Trim());
        }
    }
}