jysk.aspx.cs

图书馆里系统实现 jsp servlet bian

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;
namespace 图书管理.admin
{
	/// <summary>
	/// Jysk 的摘要说明。
	/// </summary>
	public class Jysk : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Calendar Calendar1;
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.Label Label7;
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.Button Button2;
		protected System.Web.UI.WebControls.Label LblRecordCount;
		protected System.Web.UI.WebControls.Label LblCurrentPage;
		protected System.Web.UI.WebControls.Label LblPageCount;
		protected System.Web.UI.WebControls.TextBox TxtFanYe;
		protected System.Web.UI.WebControls.LinkButton LinkButton7;
		protected System.Web.UI.WebControls.Button First;
		protected System.Web.UI.WebControls.Button Back;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.ImageButton ImageButton1;
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.Button Button4;
		protected System.Web.UI.WebControls.LinkButton LinkButton1;
		protected System.Web.UI.WebControls.DropDownList DropDownList2;
		data.message  my_message= new 图书管理.data.message();      //my_message就是图书管理.data.message()
		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(!Page.IsPostBack)
			Button4.Visible=false;
			Calendar1.Visible=false;
			JLS();
			LblCurrentPage.Text = (DataGrid1.CurrentPageIndex + 1).ToString();
			LblPageCount.Text=DataGrid1.PageCount.ToString();
			Data_Bind1();	
		 }
        #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.LinkButton7.Click += new System.EventHandler(this.LinkButton7_Click);
			this.First.Click += new System.EventHandler(this.First_Click);
			this.Back.Click += new System.EventHandler(this.Back_Click);
			this.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Button2.Click += new System.EventHandler(this.Button2_Click);
			this.DropDownList2.SelectedIndexChanged += new System.EventHandler(this.DropDownList2_SelectedIndexChanged);
			this.DataGrid1.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_DeleteCommand_1);
			this.LinkButton1.Click += new System.EventHandler(this.LinkButton1_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
		#region"在DataGrid 中显示记录"
		private void Data_Bind1()
		{
			DataSet ds= my_message.listbind ();      //调用my_message类下面的listbind方法
			DataGrid1.DataSource=ds.Tables[0].DefaultView;
			DataGrid1.DataBind();
		}
		#endregion
		#region"删除操作"		
		private void DataGrid1_DeleteCommand_1(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			int iid = int.Parse(e.Item.Cells[0].Text.Trim());
			SqlDataReader dr3=my_message.Del (iid);      //调用my_message类下面的Del方法,并传入参数
			Response.Write("<script>alert('删除成功 ！！！');</script>");
		    Data_Bind1();
		}
#endregion
		#region"数据记录数"
		private void JLS()
		{	
			SqlDataReader dr=my_message.XS();
			if (dr.Read())
			{
				LblRecordCount.Text = dr.GetValue(0).ToString();
			}				
		}
		#endregion						 
		#region "首页"	
		private void First_Click(object sender, System.EventArgs e)
		{
			DataGrid1.CurrentPageIndex = 0;
			DataBind();
			LblCurrentPage.Text = (DataGrid1.CurrentPageIndex + 1).ToString();
    
		}
		#endregion
		#region"上一页"	
		private void Back_Click(object sender, System.EventArgs e)
		{
			if ((DataGrid1.CurrentPageIndex > 0) && (DataGrid1.CurrentPageIndex < DataGrid1.PageCount))
			{
				DataGrid1.CurrentPageIndex = DataGrid1.CurrentPageIndex - 1;
				DataBind();
				LblCurrentPage.Text = (DataGrid1.CurrentPageIndex + 1).ToString();
			}
		}
		#endregion
		#region"下一页"	
		private void Button1_Click(object sender, System.EventArgs e)
		{
			if((DataGrid1.CurrentPageIndex >= 0) && (DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1)))
			{
				DataGrid1.CurrentPageIndex = DataGrid1.CurrentPageIndex + 1;
				DataBind();
				LblCurrentPage.Text = (DataGrid1.CurrentPageIndex + 1).ToString();
			}
		
		}
		#endregion
		#region "尾页"
		private void Button2_Click(object sender, System.EventArgs e)
		{
			DataGrid1.CurrentPageIndex = DataGrid1.PageCount - 1;
			DataBind();
			LblCurrentPage.Text = (DataGrid1.CurrentPageIndex + 1).ToString();
		}
		#endregion
		#region "页面跳转"	
		private void LinkButton7_Click(object sender, System.EventArgs e)
		{
			DataGrid1.CurrentPageIndex =int.Parse(TxtFanYe.Text.Trim()) - 1;
			DataGrid1.CurrentPageIndex = DataGrid1.CurrentPageIndex;
			DataBind();
			LblCurrentPage.Text = (DataGrid1.CurrentPageIndex + 1).ToString();
		}
		#endregion 	

		private void LinkButton1_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("Jyskxg.aspx?op=0"); 
		}

		private void DropDownList2_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			string SKZL=DropDownList2.SelectedValue;
			DataSet ds1= my_message.listbind1 (SKZL);      //大家来做一个利用时间的检索．
			DataGrid1.DataSource=ds1.Tables[0].DefaultView;
			DataGrid1.DataBind();
		}
	}
}