search.aspx.cs

ASP。NET免费毕业论文设计：ASP[1].NET网络书店(C_,全源码提供) 采用C#语言编写

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 Hugo.BookShop;

namespace BookShop
{
	/// <summary>
	/// Summary description for Search.
	/// </summary>
	public class Search : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.ImageButton btnReset;
		protected System.Web.UI.WebControls.Label lblInfo;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.DropDownList drp;
		protected System.Web.UI.WebControls.TextBox txtName;
		protected System.Web.UI.WebControls.TextBox txtAuthor;
		protected System.Web.UI.WebControls.TextBox txtTranslator;
		protected System.Web.UI.WebControls.TextBox txtPublisher;
		protected System.Web.UI.WebControls.ImageButton btnSearch;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if(!IsPostBack)
			{
				lblInfo.Text = "";

				Hugo.BookType myBookType=new Hugo.BookType();
				DataView dv = myBookType.GetBookType();
				this.drp.DataSource = dv;
				this.drp.DataTextField = "Name";
				this.drp.DataValueField = "Id";
				this.drp.DataBind();
				drp.Items.Add("All Types");
				drp.Items[drp.Items.Count-1].Value = "-1";
				drp.SelectedIndex = drp.Items.Count-1;
			}
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.btnSearch.Click += new System.Web.UI.ImageClickEventHandler(this.btnSearch_Click);
			this.btnReset.Click += new System.Web.UI.ImageClickEventHandler(this.btnReset_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btnSearch_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			string Name = this.txtName.Text;
			string Author = this.txtAuthor.Text.Trim();
			string Translator = this.txtTranslator.Text.Trim();
			string Publisher = this.txtPublisher.Text.Trim();
			string TypeId = this.drp.Items[this.drp.SelectedIndex].Value;

			string str = "";

			if(int.Parse(TypeId)>=0)
			{
				str += " And TypeId=" + TypeId;
			}
			if(Author.Length>0)
			{
				str += " And Author Like '%" + Author + "%'";
			}
			if(Name.Length>0)
			{
				str += " And Name Like '%" + Name + "%'";
			}
			if(Translator.Length>0)
			{
				str += " And Translator Like '%" + Translator + "%'";
			}
			if(Publisher.Length>0)
			{
				str += " And Publisher Like '%" + Publisher + "%'"; 
			}
			Response.Redirect("GoSearch.aspx?Condition=" + str);
		}

		private void btnReset_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			this.txtName.Text = "";
			this.txtAuthor.Text ="";
			this.txtTranslator.Text ="";
			this.txtPublisher.Text = "";
			this.drp.SelectedIndex = this.drp.Items.Count -1;
		}
	}
}