bookadd.aspx.cs

系系统可以试想问奶奶个的是激昂创凌晨一点也很少

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 MyBookShop.BusinessLogicLayer;
using MyBookShop.BusinessLogicHelper;

namespace MyBookShop.Web
{
	/// <summary>
	/// BookAdd 的摘要说明。
	/// </summary>
	public partial class BookAdd : System.Web.UI.Page
	{
	
		protected void Page_Load(object sender, System.EventArgs e)
		{
			if(!IsPostBack)
			{
				InitData();
				//InputPictureFile.Accept="image/*";
			}
		}

		private void InitData()
		{
			//初始化：类别下拉框中的数据，用Category表中的数据进行绑定
			DataTable dt= Category.Query(new Hashtable());
			foreach(DataRow dr in dt.Rows)
			{
				DropDownListCategory.Items.Add(new ListItem(dr["CategoryName"].ToString(),dr["CategoryId"].ToString()));
			}
		}

		/// <summary>
		/// 提交按钮单击事件
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		protected void ButtonOK_Click(object sender, System.EventArgs e)
		{
			//构造book信息哈希表
			Hashtable ht=new Hashtable();
			ht.Add("BookName",TextBoxBookName.Text.Trim());
			ht.Add("CategoryId",DropDownListCategory.SelectedValue);
			ht.Add("Price",TextBoxPrice.Text.Trim());
			ht.Add("Publisher",TextBoxPublisher.Text.Trim());
			ht.Add("PublishDate",TextBoxPublishDate.Text.Trim());
			ht.Add("Author",TextBoxAuthor.Text.Trim());
			ht.Add("PageNum",TextBoxPageNum.Text.Trim());
			ht.Add("Description",TextBoxDescription.Text.Trim());
			
			//图片名,以当前时间为文件名,确保文件名没有重复
			string uploadName=InputPictureFile.Value.Trim();
			string pictureName="";
			if(uploadName!="")
			{
				int idx=uploadName.LastIndexOf(".");
				string suffix=uploadName.Substring(idx);//文件后缀
				//Ticks属性的值为自 0001 年 1 月 1 日午夜 12:00 以来所经过时间以 100 毫微秒为间隔表示时的数字。
				pictureName=System.DateTime.Now.Ticks.ToString()+suffix;
				ht.Add("PictureUrl",pictureName);
			}

			ht.Add("SaleCount",1);
			
			//添加图书,如果数据类型不正确,给出提示.
			ArrayList WarningMessageList=new ArrayList();
			LabelWarningMessage.Text="";
			if(BookHelper.Add(ht,ref WarningMessageList)==false)
			{
				LabelWarningMessage.Text="<font color=red>";
				foreach(string item in WarningMessageList)
				{
					LabelWarningMessage.Text+=item+"<br>";
				}
				LabelWarningMessage.Text+="</font>";
			}
			
			//上传图片到目录"\BookPics\"中
			else
			{
				if(uploadName!="")
				{
					string path=Server.MapPath(".\\BookPics\\");
					InputPictureFile.PostedFile.SaveAs(path+pictureName);
				}
				Response.Redirect("BookList.aspx");
			}
			
		}
        protected void TextBoxBookName_TextChanged(object sender, EventArgs e)
        {

        }
        protected void headerMenu_Load(object sender, EventArgs e)
        {

        }
}
}