stmanagerdep.aspx.cs

连锁配送中心系统

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 STcontract.Manager
{
	/// <summary>
	/// ManagerDep 的摘要说明。
	/// </summary>
	public class ManagerDep : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid STmyGrid;
		SqlConnection STconn;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if(Session["STNickName"] != null)
			{
				//获得数据库连接字符串
				string STconnection = ConfigurationSettings.AppSettings["strconnection"];
				STconn = new SqlConnection(STconnection);
				if(!IsPostBack)
				{
					//自定义BindGrid ()方法，加载连锁店的信息
					BindGrid();
				}
			}
			else
			{
				Response.Redirect("../Index.aspx");
			}

		}

		//加载连锁店的信息
		public void BindGrid()
		{
			//创建查询连锁店信息的sql语句
			string STstrsql="select STDepID,STDepName,STDepMaster,STDepInfo from STDep";
			//创建SqlDataAdapter的实例
			SqlDataAdapter STda=new SqlDataAdapter(STstrsql,STconn);
			//创建DataSet的实例
			DataSet STds=new DataSet();
			//将信息填充到DataSet
			STda.Fill(STds);
			//获取DataSet的数据源
			STmyGrid.DataSource = STds;
			//将信息绑定到DataGrid
			STmyGrid.DataBind();
		
		}

		//处理分页
		public void STmyGrid_Page(object sender,DataGridPageChangedEventArgs e)
		{
			//获取DataGrid的当前显示页的索引
			STmyGrid.CurrentPageIndex=e.NewPageIndex;
			BindGrid();
		}

		#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.STmyGrid.CancelCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.STmyGrid_cancel);
			this.STmyGrid.EditCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.STmyGrid_edit);
			this.STmyGrid.UpdateCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.STmyGrid_update);
			this.STmyGrid.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.STmyGrid_delete);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		//点击取消所触发的事件
		public void STmyGrid_cancel(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			//设置DataGrid控件中要编辑的项的索引为-1
			STmyGrid.EditItemIndex=-1;
			BindGrid();
		}

		//点击删除所触发的事件
		public void STmyGrid_delete(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			//创建删除指定ID连锁店的sql语句
			string STstrsql = "delete from STDep where STDepID = @STDepID";
			//创建数据库的SqlCommand对象
			SqlCommand STcmd = new SqlCommand(STstrsql,STconn);
			//向SqlCommand对象添加参数
			STcmd.Parameters.Add(new SqlParameter("@STDepID",SqlDbType.Int,4));
			//向参数赋值
			STcmd.Parameters["@STDepID"].Value = STmyGrid.DataKeys[(int)e.Item.ItemIndex];
			STcmd.Connection.Open();
			try
			{
				//执行sql语句
				STcmd.ExecuteNonQuery();
			}
			catch(SqlException)
			{
				
			}
			STcmd.Connection.Close();			
			BindGrid();
		}

		//点击编辑所触发的事件
		public void STmyGrid_edit(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			//获取DataGrid所要编辑的项的索引
			STmyGrid.EditItemIndex=(int)e.Item.ItemIndex;
			BindGrid();
		}

		//点击更新所触发的事件
		public void STmyGrid_update(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			//创建更新连锁店信息的sql语句
			string STstrsql="update STDep  set STDepName = @STDepName , STDepMaster = @STDepMaster , STDepInfo = @STDepInfo where STDepID = @STDepID";
			//创建数据库的SqlCommand对象
			SqlCommand STcmd=new SqlCommand(STstrsql,STconn);
			try
			{
				//向SqlCommand对象添加参数
				STcmd.Parameters.Add(new SqlParameter("@STDepID",SqlDbType.Int,4));
				STcmd.Parameters.Add(new SqlParameter("@STDepName",SqlDbType.VarChar,50));
				STcmd.Parameters.Add(new SqlParameter("@STDepMaster",SqlDbType.VarChar,50));
				STcmd.Parameters.Add(new SqlParameter("@STDepInfo",SqlDbType.VarChar,200));
				string stupdatetext=((TextBox)e.Item.Cells[1].Controls[0]).Text ;
				//向参数赋值
				STcmd.Parameters["@STDepName"].Value=stupdatetext;
				stupdatetext=((TextBox)e.Item.Cells[2].Controls[0]).Text;
				STcmd.Parameters["@STDepMaster"].Value=stupdatetext;
				stupdatetext=((TextBox)e.Item.Cells[3].Controls[0]).Text;
				STcmd.Parameters["@STDepInfo"].Value=stupdatetext;
							
				STcmd.Parameters["@STDepID"].Value=STmyGrid.DataKeys[(int)e.Item.ItemIndex];
				STcmd.Connection.Open();
				//执行sql语句
				STcmd.ExecuteNonQuery();
				STmyGrid.EditItemIndex=-1;
			}
			catch(SqlException ex)
			{
				throw ex;
			}
			STcmd.Connection.Close();		
			BindGrid();	
		}
	}
}