addcourse.aspx.cs

一个学生管理系统的C++源程序

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>
	/// addcourse 的摘要说明。
	/// </summary>
	public class addcourse : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox Tbx_id;
		protected System.Web.UI.WebControls.CustomValidator Cv_id;
		protected System.Web.UI.WebControls.RequiredFieldValidator Rfv_id;
		protected System.Web.UI.WebControls.TextBox Tbx_name;
		protected System.Web.UI.WebControls.TextBox Tbx_period;
		protected System.Web.UI.WebControls.TextBox Tbx_credit;
		protected System.Web.UI.WebControls.TextBox Tbx_else;
		protected System.Web.UI.WebControls.DropDownList Ddl_kind;
		protected System.Web.UI.WebControls.Label Lbl_note;
		protected System.Web.UI.WebControls.Button Btn_reset;
		protected System.Web.UI.WebControls.Button Btn_ok;
		protected System.Web.UI.WebControls.Label Lbl_remind;
	
	   SqlConnection cn;
		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 strconn= ConfigurationSettings.AppSettings["dsn"];
			cn=new SqlConnection(strconn);
			cn.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.Cv_id.ServerValidate += new System.Web.UI.WebControls.ServerValidateEventHandler(this.Cv_id_ServerValidate);
			this.Btn_ok.Click += new System.EventHandler(this.Btn_ok_Click);
			this.Btn_reset.Click += new System.EventHandler(this.Btn_reset_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Cv_id_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
		{
			
			SqlCommand cm=new SqlCommand("select * from course where Course_id=@Course_id",cn);
			cm.Parameters.Add("@Course_id",SqlDbType.VarChar,50);
			cm.Parameters["@Course_id"].Value=Tbx_id.Text;
			SqlDataReader dr=cm.ExecuteReader();
			if(dr.Read())
			{
				args.IsValid=false;
			}
			else
			{
				args.IsValid=true;
			}
			cn.Close();
		}

		private void Btn_ok_Click(object sender, System.EventArgs e)
		{
			SqlCommand cm=new SqlCommand("insert_course_1",cn);
			cm.CommandType=CommandType.StoredProcedure;
			try
			{
				cm.Parameters.Add(new SqlParameter("@Course_id",SqlDbType.VarChar,50));
				cm.Parameters["@Course_id"].Value=Tbx_id.Text;
				cm.Parameters.Add(new SqlParameter("@Course_name",SqlDbType.VarChar,50));
				cm.Parameters["@Course_name"].Value=Tbx_name.Text;
				cm.Parameters.Add(new SqlParameter("@Course_period",SqlDbType.Int,4));
				cm.Parameters["@Course_period"].Value=Tbx_period.Text;
				cm.Parameters.Add(new SqlParameter("@Course_credit",SqlDbType.Int,4));
				cm.Parameters["@Course_credit"].Value=Tbx_credit.Text;				
				cm.Parameters.Add(new SqlParameter("@Course_kind",SqlDbType.Int,4));
				cm.Parameters["@Course_kind"].Value=Ddl_kind.SelectedItem.Value;
				cm.Parameters.Add(new SqlParameter("@Course_describe",SqlDbType.VarChar,50));
				cm.Parameters["@Course_describe"].Value=Tbx_else.Text;
				cm.Connection.Open();
				cm.ExecuteNonQuery();
				Response.Redirect("course.aspx");
				
			}
			catch
			{
				Lbl_remind.Text="添加失败,请检查输入数据！";
				Lbl_remind.Style["color"]="red";
			}
			cm.Connection.Close();
		}

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


	}
}