updateproduct.aspx.cs

MIS系统开发与应用配套的源代码

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 MisStock.Components;

namespace MisStock.DesktopModules.Product
{
	/// <summary>
	/// Update 的摘要说明。
	/// </summary>
	public class UpdateProduct : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.TextBox ProNo;
		protected System.Web.UI.WebControls.RequiredFieldValidator Requiredfieldvalidator1;
		protected System.Web.UI.WebControls.Label Label10;
		protected System.Web.UI.WebControls.TextBox ProName;
		protected System.Web.UI.WebControls.RequiredFieldValidator Requiredfieldvalidator2;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.DropDownList ProductTypeList;
		protected System.Web.UI.WebControls.Label Label11;
		protected System.Web.UI.WebControls.TextBox ProStyle;
		protected System.Web.UI.WebControls.RequiredFieldValidator Requiredfieldvalidator3;
		protected System.Web.UI.WebControls.Label Label12;
		protected System.Web.UI.WebControls.TextBox ProUnit;
		protected System.Web.UI.WebControls.RequiredFieldValidator Requiredfieldvalidator4;
		protected System.Web.UI.WebControls.Label lblAdditionalNo;
		protected System.Web.UI.WebControls.TextBox Price;
		protected System.Web.UI.WebControls.RequiredFieldValidator rfNew;
		protected System.Web.UI.WebControls.RegularExpressionValidator reNew;
		protected System.Web.UI.WebControls.Label Label5;
		protected System.Web.UI.WebControls.TextBox Quantity;
		protected System.Web.UI.WebControls.RequiredFieldValidator rfBD;
		protected System.Web.UI.WebControls.RegularExpressionValidator reBD;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.TextBox Lower;
		protected System.Web.UI.WebControls.RequiredFieldValidator rfL;
		protected System.Web.UI.WebControls.RegularExpressionValidator reL;
		protected System.Web.UI.WebControls.Label Label4;
		protected System.Web.UI.WebControls.TextBox Upper;
		protected System.Web.UI.WebControls.RequiredFieldValidator rfU;
		protected System.Web.UI.WebControls.RegularExpressionValidator reU;
		protected System.Web.UI.WebControls.Label Label6;
		protected System.Web.UI.WebControls.TextBox Remark;
		protected System.Web.UI.WebControls.Button UpdateBtn;
		protected System.Web.UI.WebControls.Button ReturnBtn;
	
		private int nProductID = -1;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			///判断用户是否登陆
			if(Session["UserID"] == null)
			{
				Response.Redirect("~/Default.aspx");
			}
			///判断用户是否是超级管理员
			if(Components.User.IsAuthorityAdmin(Session["UserID"].ToString()) >= Components.User.USERTYPENORMAL)
			{
				Response.Write("<script>alert(\"你没有权限，请与管理员联系！\")</script>");
				Response.Write("<script>history.back();</script>");
			}			
			if(Request.Params["ProductID"] != null)
			{
				nProductID = Int32.Parse(Request.Params["ProductID"].ToString());
			}
			if(!Page.IsPostBack)
			{
				///绑定控件的数据
				BindProductTypeData();				
				
				if(nProductID > -1)
				{
					///显示信息
					BindProductData(nProductID);
				}
			}

			///设置按钮的可用性
			UpdateBtn.Enabled = (ProductTypeList.Items.Count <= 0 || nProductID <= -1) ? false : true;
		}

		private void BindProductTypeData()
		{
			///定义获取数据的类
			MisStock.Components.ProductType type = new MisStock.Components.ProductType();
			SqlDataReader rect = type.GetProductTypes();

			///设定控件的数据源
			ProductTypeList.DataSource = rect;
			
			///设定控件的Text属性和Value属性
			ProductTypeList.DataTextField = "Name";
			ProductTypeList.DataValueField = "ProductTypeID";

			///绑定控件的数据
			ProductTypeList.DataBind();

			///关闭数据读取器和数据库的连接
			rect.Close();
		}

		private void BindProductData(int nProductID)
		{
			///定义获取数据的类
			MisStock.Components.Product product = new MisStock.Components.Product();
			SqlDataReader recp = product.GetSingleProduct(nProductID);

			///从获取的数据中读取数据
			if(recp.Read())
			{	
				ProNo.Text    = recp["ProNo"].ToString();
				ProName.Text  = recp["ProName"].ToString();
				ProStyle.Text = recp["ProStyle"].ToString();
				ProUnit.Text  = recp["ProUnit"].ToString();
				Price.Text    = recp["Price"].ToString();
				Quantity.Text = recp["Quantity"].ToString();
				Lower.Text    = recp["LowerSum"].ToString();
				Upper.Text    = recp["UpperSum"].ToString();
				Remark.Text   = recp["Remark"].ToString();

				///设置列表控件的数据
				MisSystem.SetListBoxItem(ProductTypeList,recp["ProductTypeID"].ToString());				
			}
			///关闭数据读取器和数据库的连接
			recp.Close();
		}

		private void ReturnBtn_Click(object sender, System.EventArgs e)
		{
			///跳转到管理页面
			Response.Redirect("~/DesktopModules/Product/ProductManage.aspx");
		}

		private void UpdateBtn_Click(object sender, System.EventArgs e)
		{
			if(Page.IsValid == true)
			{
				///定义类
				MisStock.Components.Product product = new MisStock.Components.Product();
				try
				{
					///修改操作
					product.UpdateProduct(nProductID,
						ProNo.Text.Trim(),ProName.Text.Trim(),
						Int32.Parse(ProductTypeList.SelectedValue),
						ProStyle.Text.Trim(),
						ProUnit.Text.Trim(),
						Convert.ToDecimal(Price.Text.Trim()),
						Int32.Parse(Quantity.Text.Trim()),
						Int32.Parse(Lower.Text.Trim()),
						Int32.Parse(Upper.Text.Trim()),
						Remark.Text);
					
					///显示操作结果信息
					Response.Write ("<script>window.alert('" + MisSystem.OPERATIONUPDATESUCCESSMESSAGE + "')</script>");
				}
				catch(Exception ex)
				{			
					///显示修改操作中的失败、错误信息
					Response.Redirect("~/DesktopModules/ErrorPage.aspx?ErrorUrl="
						+ MisSystem.RedirectErrorUrl(Request.RawUrl)
						+ "&ErrorMessage=" + ex.Message.Replace("\n"," "));
				}
			}
		}

		#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.UpdateBtn.Click += new System.EventHandler(this.UpdateBtn_Click);
			this.ReturnBtn.Click += new System.EventHandler(this.ReturnBtn_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
	}
}