paysexpenses.aspx.cs

学生公寓管理系统使用说明： 1.服务器运行环境 SQL 2000 .NET FRAMEWORK 1.1 .NET FRAMEWORK 1.1 CHINESE (SIMPL

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
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 Manage.FinanceManage
{
	/// <summary>
	/// PaysExpenses 的摘要说明。
	/// </summary>
	public class PaysExpenses : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.DropDownList DropDownList1;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.TextBox TextBox2;
		protected System.Web.UI.WebControls.Button OK;
		protected System.Web.UI.WebControls.Button Clear;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
		protected System.Web.UI.WebControls.Label Label3;
		protected string cmdText;
		protected System.Data.SqlClient.SqlConnection conn;
		protected System.Data.SqlClient.SqlCommand cmd;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator3;
		protected string myConn;
	
		private 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 窗体设计器生成的代码
		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.OK.Click += new System.EventHandler(this.OK_Click);
			this.Clear.Click += new System.EventHandler(this.Clear_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private bool check(string ID)
		{
			System.Data.SqlClient.SqlCommand cmd2;
			System.Data.SqlClient.SqlDataReader reader2;
			this.myConn=ConfigurationSettings.AppSettings["mySql"];
			this.conn=new System.Data.SqlClient.SqlConnection(myConn);
			cmd2=new System.Data.SqlClient.SqlCommand("select Student_ID from Student",conn);
			int i=0;
			conn.Open();
			reader2=cmd2.ExecuteReader();
			while(reader2.Read())
			{
				if(reader2["Student_ID"].ToString()==ID)

					i=1;
			}
			reader2.Close();
			conn.Close();
			if(i==1) return true;
			else  return false;
			
		}

		private void OK_Click(object sender, System.EventArgs e)
		{
			this.myConn=ConfigurationSettings.AppSettings["mySql"];
			this.conn=new System.Data.SqlClient.SqlConnection(myConn);
			
			try
			{	
			if(this.DropDownList1.SelectedValue=="Student_LiveCost")
				cmdText="update Student set Student_LiveCost='"+Convert.ToDecimal(TextBox1.Text)+"' where Student_ID='"+this.TextBox2.Text+"'";
			else if(this.DropDownList1.SelectedValue=="Room_ElectricalBill"||this.DropDownList1.SelectedValue=="Room_WaterBill")
				cmdText="update Room set "+this.DropDownList1.SelectedValue.ToString()+"='"+Convert.ToDecimal(TextBox1.Text)+"' where Room_ID=(select Room_ID from Student where Student_ID='"+this.TextBox2.Text+"')";

				if(check(this.TextBox2.Text))
				{
					conn.Open();
					cmd=new System.Data.SqlClient.SqlCommand(cmdText,conn);
					cmd.ExecuteNonQuery();
					Response.Write("<script>alert('缴费成功！')</script>");
					conn.Close();
				}
				else Response.Write("<script>alert('不存在的学号！')</script>");
			}
			catch(Exception ex)
			{	
				
				Response.Write("<script>alert('"+ex.Message+"输入格式错误！')</script>");
			
			}
		}

		private void Clear_Click(object sender, System.EventArgs e)
		{
		
		}
	}
}