st_studentadd.aspx.cs

选课系统 不可多得的好东西 代码加数据库

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;

namespace STGROUP.ST_WebCourse.ST_Admin
{
	/// <summary>
	/// ST_StudentAdd 的摘要说明。
	/// </summary>
	public partial class ST_StudentAdd : System.Web.UI.Page
	{
	
		protected void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			Response.Cache.SetCacheability(HttpCacheability.NoCache);//去掉页面缓存
			if(!IsPostBack)
			{
				//初始化院系信息
				ST_CourseBiz.ST_Dept st_dept = new STGROUP.ST_CourseBiz.ST_Dept();
				ddlDept.DataSource = st_dept.ST_GetAllDeptInfo();
				ddlDept.DataBind();
				if(ddlDept.Items.Count==0)
				{
					Response.Write("<script language>alert('没有院系信息，请先添加院系！');window.close();</script>");
					Response.End();
				}
				//初始化专业信息
				ST_CourseBiz.ST_Major st_major = new STGROUP.ST_CourseBiz.ST_Major();
				ddlMajor.DataSource = st_major.ST_GetMajorInfoByDid(int.Parse((Request["did"]==null?ddlDept.SelectedValue:Request["did"])));
				ddlMajor.DataBind();
				if(ddlMajor.Items.Count==0)
				{
					Response.Write("<script language>alert('没有专业信息，请先添加专业！');window.close();</script>");
					Response.End();
				}
				//初始化学生信息
				ST_CourseBiz.ST_Student st_stu = new STGROUP.ST_CourseBiz.ST_Student();
				if(Request["Action"]=="edit" && Request["id"]!=null)
				{
					DataSet ds = st_stu.ST_GetStudentInfo(int.Parse(Request["id"]));
					txtNumber.Text = ds.Tables[0].Rows[0]["ST_StudentID"].ToString();
					txtName.Text = ds.Tables[0].Rows[0]["ST_StudentName"].ToString();
					txtCode.Text = ds.Tables[0].Rows[0]["ST_StudentNumber"].ToString();
					ddlDept.SelectedIndex = ddlDept.Items.IndexOf(ddlDept.Items.FindByValue(Request["did"]));
					ddlMajor.SelectedIndex = ddlDept.Items.IndexOf(ddlDept.Items.FindByValue(Request["mid"]));
					rboGender.SelectedIndex = rboGender.Items.IndexOf(rboGender.Items.FindByValue(ds.Tables[0].Rows[0]["ST_StudentGender"].ToString()=="True"?"1":"0"));
				}
			}
		}

		#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

		protected void btnOK_Click(object sender, System.EventArgs e)
		{
			//判断条件，名称不允许未空，名称长度不超过20个字符
			if(txtName.Text=="")
				Response.Write("<script defer>alert('名称不允许未空');</script>");
			else if(txtName.Text.Length>20)
			{
				Response.Write("<script defer>alert('最多20个字符');</script>");
			}
			else
			{
				//构建学生信息的实体类，并进行添加或者删除操作
				ST_CourseBiz.ST_StudentEntity st_stuentity = new STGROUP.ST_CourseBiz.ST_StudentEntity();
				string st_sTemp = rboGender.SelectedValue;
				st_stuentity.ST_DeptID = int.Parse(ddlDept.SelectedValue);
				st_stuentity.ST_MajorID = int.Parse(ddlMajor.SelectedValue);
				st_stuentity.ST_StudentGender = int.Parse(st_sTemp);
				st_stuentity.ST_StudentName = txtName.Text.Trim();
				st_stuentity.ST_StudentNumber = txtCode.Text.Trim();
				
				ST_CourseBiz.ST_Student st_stu = new STGROUP.ST_CourseBiz.ST_Student();
				if(Request["Action"]=="add")
					st_stu.ST_InsertStudentInfo(st_stuentity);
				else
				{
					st_stuentity.ST_StudentID = int.Parse(txtNumber.Text);
					st_stu.ST_UpdateStudentInfo(st_stuentity);
				}
				string str = "<script language=javascript>window.dialogArguments.document.location.href='ST_Student.aspx';window.close();</script>"; 
				Response.Write(str);
			}
		}

		protected void ddlDept_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			//院系信息变化，重新绑定专业信息
			ST_CourseBiz.ST_Major st_major = new STGROUP.ST_CourseBiz.ST_Major();
			ddlMajor.DataSource = st_major.ST_GetMajorInfoByDid(int.Parse(ddlDept.SelectedValue));
			ddlMajor.DataBind();
			if(ddlMajor.Items.Count==0)
			{
				Response.Write("<script language>alert('没有专业信息，请先添加专业！');window.close();</script>");
				Response.End();
			}
		}
	}
}