manageorder.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;

namespace BookShop
{
	/// <summary>
	/// ManageOrder
	/// </summary>
	public class ManageOrder : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label lblInfo;
		protected System.Web.UI.WebControls.DataGrid Datagrid1;
		protected System.Web.UI.WebControls.Label lblNo;
		protected System.Web.UI.HtmlControls.HtmlForm Form1;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if(!Page.IsPostBack)
			{
				try
				{
					if(Object.Equals(Session["UserName"],null) && Hugo.BookShop.User.IsSupervisor(Session["UserName"].ToString()))
					{
						Response.Redirect("Error.aspx");
					}
					else
					{
						ViewState["Sort"] = "";
					}

					try
					{
						Bind();
					}
					catch(Exception ex)
					{
						ShowMsg(ex.Message,1);
					}
				}
				catch
				{
					Response.Redirect("Error.aspx");
				}
			}
		}

		#region Web Form Designer generated code
		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.Datagrid1.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.Datagrid1_PageIndexChanged);
			this.Datagrid1.EditCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.Datagrid1_EditCommand);
			this.Datagrid1.SortCommand += new System.Web.UI.WebControls.DataGridSortCommandEventHandler(this.Datagrid1_SortCommand);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion


		private void Bind()
		{
			try
			{
				DataSet ds = Hugo.BookShop.Order.GetOrders();
				ds.Tables[0].DefaultView.Sort = ViewState["Sort"].ToString();
				this.Datagrid1.DataSource = ds.Tables[0].DefaultView;
				this.Datagrid1.DataBind();
				this.lblNo.Text = "You have " + ds.Tables[0].Rows.Count.ToString() + " order(s) to deal with.";
			}
			catch(Exception ex)
			{
				ShowMsg(ex.Message,1);
			}			
		}


		private void ShowMsg(string Message,int MessageType)
		{
			this.lblInfo.Visible = true;
			if(MessageType==0)//Mission accomplished
			{
				this.lblInfo.Text = Message;
				this.lblInfo.ForeColor = Color.Blue;
			}
			else
			{
				this.lblInfo.Text = Message;
				this.lblInfo.ForeColor = Color.Red;
			}			
		}

		private void Datagrid1_EditCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			try
			{				
				int oid = int.Parse(this.Datagrid1.DataKeys[e.Item.ItemIndex].ToString());
				Hugo.BookShop.Order.Deal(oid);
				ShowMsg("Deal successful!",0);
				Bind();
			}
			catch(Exception ex)
			{
				ShowMsg(ex.Message,1);
			}
		}

		private void Datagrid1_SortCommand(object source, System.Web.UI.WebControls.DataGridSortCommandEventArgs e)
		{
			if(ViewState["Sort"].ToString() == e.SortExpression)
			{
				ViewState["Sort"] += " desc";
			}
			else
			{
				ViewState["Sort"] = e.SortExpression;
			}
			Bind();
		}

		private void Datagrid1_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			this.Datagrid1.CurrentPageIndex = e.NewPageIndex;
			Bind();
		}
	}
}