st_addcourse.aspx.cs

学生管理系统（asp.net+sql server）

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_addcourse 的摘要说明。
	/// </summary>
	public class ST_addcourse : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox st_tbx_id;
		protected System.Web.UI.WebControls.CustomValidator st_cv_id;
		protected System.Web.UI.WebControls.RequiredFieldValidator st_rfv_id;
		protected System.Web.UI.WebControls.TextBox st_tbx_name;
		protected System.Web.UI.WebControls.TextBox st_tbx_period;
		protected System.Web.UI.WebControls.TextBox st_tbx_credit;
		protected System.Web.UI.WebControls.TextBox st_tbx_else;
		protected System.Web.UI.WebControls.DropDownList st_ddl_kind;
		protected System.Web.UI.WebControls.Label st_lbl_note;
		protected System.Web.UI.WebControls.Button st_btn_reset;
		protected System.Web.UI.WebControls.Button st_btn_ok;
		protected System.Web.UI.WebControls.Label st_lbl_remind;
	
	   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_ok.Click += new System.EventHandler(this.st_btn_ok_Click);
			this.st_btn_reset.Click += new System.EventHandler(this.st_btn_reset_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_course where ST_Course_id=@Course_id",st_conn);
			st_comm.Parameters.Add("@Course_id",SqlDbType.VarChar,50);
			st_comm.Parameters["@Course_id"].Value=st_tbx_id.Text;
			SqlDataReader st_dr=st_comm.ExecuteReader();
			if(st_dr.Read())
			{
				args.IsValid=false;
			}
			else
			{
				args.IsValid=true;
			}
			st_conn.Close();
		}

		private void st_btn_ok_Click(object sender, System.EventArgs e)
		{
			//创建sql命令
			SqlCommand st_comm=new SqlCommand("insert_course_1",st_conn);
			//调用存储过程
			st_comm.CommandType=CommandType.StoredProcedure;
			try
			{
				st_comm.Parameters.Add(new SqlParameter("@Course_id",SqlDbType.VarChar,50));
				st_comm.Parameters["@Course_id"].Value=st_tbx_id.Text;
				st_comm.Parameters.Add(new SqlParameter("@Course_name",SqlDbType.VarChar,50));
				st_comm.Parameters["@Course_name"].Value=st_tbx_name.Text;
				st_comm.Parameters.Add(new SqlParameter("@Course_period",SqlDbType.Int,4));
				st_comm.Parameters["@Course_period"].Value=st_tbx_period.Text;
				st_comm.Parameters.Add(new SqlParameter("@Course_credit",SqlDbType.Int,4));
				st_comm.Parameters["@Course_credit"].Value=st_tbx_credit.Text;				
				st_comm.Parameters.Add(new SqlParameter("@Course_kind",SqlDbType.Int,4));
				st_comm.Parameters["@Course_kind"].Value=st_ddl_kind.SelectedItem.Value;
				st_comm.Parameters.Add(new SqlParameter("@Course_describe",SqlDbType.VarChar,50));
				st_comm.Parameters["@Course_describe"].Value=st_tbx_else.Text;
				st_comm.Connection.Open();
				st_comm.ExecuteNonQuery();
				Response.Redirect("ST_course.aspx");
				
			}
			catch
			{
				st_lbl_remind.Text="添加失败,请检查输入数据！";
				st_lbl_remind.Style["color"]="red";
			}
			st_comm.Connection.Close();
		}

		private void st_btn_reset_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("ST_addcourse.aspx");
		}


	}
}