addcourse.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>
	/// addcourse 的摘要说明。
	/// </summary>
	public partial class addcourse : 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
		}

		#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 course where Course_id='"+Tbx_id.Text+"'";
            DataAccess DataAs = new DataAccess();
            DataTable DT = DataAs.CreateDatatable(strsql);
			if( DT.Rows.Count != 0)
			{
				args.IsValid=false;
			}
			else
			{
				args.IsValid=true;
			}
		
		}

		protected void Btn_ok_Click(object sender, System.EventArgs e)
		{
            string strsql = "insert into course(Course_id,Course_name,Course_period,Course_credit,Course_kind,Course_describe) values('" +
                           Tbx_id.Text + "','" + Tbx_name.Text + "'," + Tbx_period.Text + "," + Tbx_credit.Text + "," + Ddl_kind.SelectedItem.Value + ",'" + Tbx_else.Text + "')";
			DataAccess DataAs = new DataAccess();
            bool Result = DataAs.ExecSql(strsql);
            if (Result)
			{

				Response.Redirect("course.aspx");
				
			}
			else
			{
				Lbl_remind.Text="添加失败,请检查输入数据！";
				Lbl_remind.Style["color"]="red";
			}
			
		}

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


	}
}