st_addteacher.aspx.cs

本人上传的是学生管理系统,希望能给广大编程爱好都以帮助

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 STGROUP
{
	/// <summary>
	/// ST_addteacher 的摘要说明。
	/// </summary>
	public class ST_addteacher : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.CustomValidator st_cv_id;
		protected System.Web.UI.WebControls.TextBox st_tbx_id;
		protected System.Web.UI.WebControls.TextBox st_tbx_name;
		protected System.Web.UI.WebControls.DropDownList st_ddl_college;
		protected System.Web.UI.WebControls.Label st_lbl_note;
		protected System.Web.UI.WebControls.Button st_btn_add;
		protected System.Web.UI.WebControls.RequiredFieldValidator st_rfv_id;
	    SqlConnection st_conn;
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			string st_connstr= ConfigurationSettings.AppSettings["st_dbconn"];
			st_conn=new SqlConnection(st_connstr);
			st_conn.Open();
		}

		#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.st_cv_id.ServerValidate += new System.Web.UI.WebControls.ServerValidateEventHandler(this.st_cv_id_ServerValidate);
			this.st_btn_add.Click += new System.EventHandler(this.st_btn_add_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void st_cv_id_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
		{
				SqlCommand st_comm=new SqlCommand("select * from ST_teacher where ST_Teacher_id=@Teacher_id",st_conn);
			st_comm.Parameters.Add("@Teacher_id",SqlDbType.VarChar,50);
			st_comm.Parameters["@Teacher_id"].Value=st_tbx_id.Text;
			SqlDataReader dr=st_comm.ExecuteReader();
			if(dr.Read())
			{
				args.IsValid=false;
			}
			else
			{
				args.IsValid=true;
			}
			st_conn.Close();
		
		}

		private void st_btn_add_Click(object sender, System.EventArgs e)
		{
			SqlCommand st_comm=new SqlCommand("insert_teacher_1",st_conn);
			st_comm.CommandType=CommandType.StoredProcedure;
			st_comm.Parameters.Add(new SqlParameter("@Teacher_id",SqlDbType.VarChar,50));
			st_comm.Parameters["@Teacher_id"].Value=st_tbx_id.Text;
			st_comm.Parameters.Add(new SqlParameter("@Teacher_name",SqlDbType.VarChar,50));
			st_comm.Parameters["@Teacher_name"].Value=st_tbx_name.Text;			
			st_comm.Parameters.Add(new SqlParameter("@Teacher_college",SqlDbType.VarChar,50));
			st_comm.Parameters["@Teacher_college"].Value=st_ddl_college.SelectedItem.Text;
			st_comm.Connection.Open();
			try
			{
				st_comm.ExecuteNonQuery();
				Response.Redirect("ST_teacher.aspx");
								
			}
			catch(SqlException)
			{
				st_lbl_note.Text="添加失败";
				st_lbl_note.Style["color"]="red";
			}
			st_comm.Connection.Close();
		}
	}
}