vote.ascx.cs

酒店管理系统

namespace hotel.Continer
{
	using System;
	using System.Data;
	using System.Drawing;
	using System.Web;
	using System.Web.UI.WebControls;
	using System.Web.UI.HtmlControls;
	using System.Data.SqlClient;

	/// <summary>
	///		vote 的摘要说明。
	/// </summary>
	public class vote : System.Web.UI.UserControl
	{
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.RadioButtonList RadioButtonList1;
		protected System.Web.UI.WebControls.Button btn;
		protected System.Web.UI.WebControls.Button Button2;

		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(!this.IsPostBack)
			{
				SqlConnection con=DB.createCon();
				con.Open();
				SqlCommand cmd=new SqlCommand("select * from vote",con);
				
				SqlDataReader sdr=cmd.ExecuteReader();
				this.RadioButtonList1.DataTextField="voteitem";
				this.RadioButtonList1.DataValueField="voteid";
				this.RadioButtonList1.DataSource=sdr;
				this.RadioButtonList1.DataBind();
				sdr.Close();
				con.Close();
			}
		}

		#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.RadioButtonList1.SelectedIndexChanged += new System.EventHandler(this.RadioButtonList1_SelectedIndexChanged);
			this.btn.Click += new System.EventHandler(this.btn_Click);
			this.Button2.Disposed += new System.EventHandler(this.Button2_Click);
			this.Button2.DataBinding += new System.EventHandler(this.Button2_Click);
			this.Button2.Click += new System.EventHandler(this.Button2_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btn_Click(object sender, System.EventArgs e)
		{
			
		     SqlConnection con=DB.createCon();
			 con.Open();
			 SqlCommand cmd=new SqlCommand();
			 cmd.Connection=con;
			 cmd.CommandText="update vote set votenum=votenum+1 where voteid="+this.RadioButtonList1.SelectedValue.ToString()+"";
             cmd.ExecuteNonQuery();
		     con.Close();
		}

		private void Button2_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("showvote.aspx");
		}

		private void RadioButtonList1_SelectedIndexChanged(object sender, System.EventArgs e)
		{
		
		}
	}
}