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 _211
{
	/// <summary>
	/// AdminArticleEdit 的摘要說明。
	/// </summary>
	public partial class AdminArticleEdit : System.Web.UI.Page
	{
	
		protected void Page_Load(object sender, System.EventArgs e)
		{
			if(Session["name"]==null)
			{
				Response.Write("<script>top.location='AdminLogin.aspx'</script>");
				return;
			}

			if(Request.QueryString["ArticleId"]==null)Response.Redirect("AdminMain.aspx");
			if(!StringManager.IsUInt(Request.QueryString["ArticleId"].ToString()))Response.Redirect("AdminMain.aspx");

			if(!Page.IsPostBack)
			{
				BindClass();
				using(Article ar=new Article(Convert.ToUInt32(Request.QueryString["ArticleId"].ToString())))
				{
					c.SelectedValue=DBQuery.ExecuteScalar("select ClassId from [Item] where ItemId="+ar.getItemId()).ToString();
					BindItem();
					i.SelectedValue=ar.getItemId().ToString();
					title.Text=ar.getArticleTitle();
					content.Text=ar.getArticleContent();
				}
			}
		}

		private void BindClass()
		{
			c.DataSource=TableQuery.ClassQuery();
			c.DataTextField="ClassName";
			c.DataValueField="ClassId";
			c.DataBind();
		}

		private void BindItem()
		{
			if(c.SelectedItem==null)return;

			i.DataSource=TableQuery.ItemQuery(c.SelectedValue);
			i.DataTextField="ItemName";
			i.DataValueField="ItemId";
			i.DataBind();
		}

		#region Web 窗體設計器生成的代碼
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 該調用是 ASP.NET Web 窗體設計器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 設計器支持所需的方法 - 不要使用代碼編輯器修改
		/// 此方法的內容。
		/// </summary>
		private void InitializeComponent()
		{    

		}
		#endregion

		protected void c_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			BindItem();
		}

		protected void Button1_Click(object sender, System.EventArgs e)
		{
			if(title.Text==""||content.Text==""||i.SelectedItem==null)
			{
				Response.Write("<script>alert('填寫未完全');</script>");
				return;
			}

			int temp;
			int iid,cid;
			using(Article ar=new Article(Convert.ToUInt32(Request.QueryString["ArticleId"].ToString())))
			{
				ar.setArticleContent(content.Text);
				ar.setArticleTitle(title.Text);
				ar.setItemId(Convert.ToInt32(i.SelectedValue));
				temp=(int)ar.getArticleId();
				iid=ar.getItemId();
				cid=ar.getClassId();
				try
				{
					ar.Update();
					
					Response.Write("<script>alert('修改成功');self.location='AdminArticleList.aspx'</script>");
				}
				catch(Exception ex)
				{
					Response.Write("<script>alert('"+ex.Message.ToString()+"');</script>");
				}
			}

			using(CreateArticle ca=new CreateArticle(temp))
			{
				ca.Add();
			}
			using(CreateItem ci=new CreateItem(iid))
			{
				ci.Add();
			}
			using(CreateClass cc=new CreateClass(cid))
			{
				cc.Add();
			}
		}
	}
}