leaveword.aspx.cs

ASP C#代码实例 适合初学人士学习使用

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.Data.SqlClient;
using System.Configuration;

namespace Example_10_2
{
	/// <summary>
	/// Leaveword 的摘要说明。
	/// </summary>
	public class Leaveword : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label UserName;
		protected System.Web.UI.WebControls.TextBox Title;
		protected System.Web.UI.WebControls.TextBox BodyContent;
		protected System.Web.UI.WebControls.RequiredFieldValidator rfTitle;
		protected System.Web.UI.WebControls.Button SureBtn;
		protected System.Web.UI.WebControls.DataGrid myDataGrid;
		protected System.Web.UI.WebControls.TextBox Body;
		public String IPAddress        = "";
			
		private void Page_Load(object sender, System.EventArgs e)
		{
			///获取用户登录的IP地址
			IPAddress = Request.UserHostAddress;

			if(!Page.IsPostBack)
			{
				BindLeavewordData();
			}
		}

		private void BindLeavewordData()
		{
			///获取留言的数据
			LeavewordDB word = new LeavewordDB();
			SqlDataReader recw = word.GetLeavewords();

			///绑定DataGrid控件的数据
			myDataGrid.DataSource = recw;
			myDataGrid.DataBind();

			///关闭数据读取器
			recw.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.SureBtn.Click += new System.EventHandler(this.SureBtn_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void SureBtn_Click(object sender, System.EventArgs e)
		{
			LeavewordDB word = new LeavewordDB();
			if(Body.Text.Length > 10)
			{
				///添加新的留言
				word.AddLeaveword(Title.Text.Trim(),Body.Text.Trim());

				///重新绑定留言版的数据
				BindLeavewordData();
			}
		}

		public String FormatBody(String sBody)
		{
			return(sBody.Replace("\n","<br>"));	
		}
	}
}