addteacher.aspx.cs

C# SQL遍写的学生选课系统 给大家看看 有点多 有点复杂

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
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.Configuration;

namespace sms
{
	/// <summary>
	/// addteacher 的摘要说明。
	/// </summary>
	public partial class addteacher : System.Web.UI.Page
	{
        private DataAccess DataAs;
		protected void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面

		}

		#region Web Form Designer generated code
		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()
		{    
			this.Cv_id.ServerValidate += new System.Web.UI.WebControls.ServerValidateEventHandler(this.Cv_id_ServerValidate);

		}
		#endregion

		private void Cv_id_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
		{
            string strsql = "select * from teacher where Teacher_id='" + Tbx_id.Text + "'";
            DataAs = new DataAccess();
            DataTable DT = DataAs.CreateDatatable(strsql);
			if(DT.Rows.Count != 0)
			{
				args.IsValid=false;
			}
			else
			{
				args.IsValid=true;
			}
		
		}

		protected void Btn_add_Click(object sender, System.EventArgs e)
		{
            string strsql = "insert into teacher(Teacher_id,Teacher_name,Teacher_college) values('" + Tbx_id.Text + "','" + Tbx_name.Text + "','" + Ddl_college.SelectedItem.Text + "')";
	        DataAs = new DataAccess();
            bool Result = DataAs.ExecSql(strsql);
            if (Result)
			{
                insert();
				Response.Redirect("teacher.aspx");
								
			}
			else
			{
				Lbl_note.Text="添加失败";
				Lbl_note.Style["color"]="red";
			}
		}
        public void insert()
        {
            string strsql = "insert into users(User_id,User_password,User_power) values('" + Tbx_id + "','" + Tbx_id + "',2)";
            DataAs = new DataAccess();
            bool Result = DataAs.ExecSql(strsql);
            if (Result)
            {
                Response.Redirect("userlist.aspx");

            }
            else
            {
                Lbl_note.Text = "添加失败";
                Lbl_note.Style["color"] = "red";
            }
        }
	}
}