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.OleDb;

namespace SCard.admin
{
	/// <summary>
	/// 留言板 信息 (0未讀   1已讀)
	/// </summary>
	public class messageList : System.Web.UI.Page
	{
        protected System.Web.UI.WebControls.DataGrid messageDataGrid;
        protected System.Web.UI.WebControls.Label lblNum;
        protected System.Web.UI.WebControls.Label lblState;
        protected DevCenter.OleDbPager OleDbPager1;
    
		private void Page_Load(object sender, System.EventArgs e)
		{
            //權限檢查
            if( Session["adminName"]==null || Session["adminName"].ToString() == String.Empty )
            {
                Response.Write("<font color=#ff0000 style='FONT-SIZE: 12px'>對不起,您沒足夠權限訪問此頁!!</font><br>");
                Response.Write("<a href=index.aspx target=_top style='FONT-SIZE: 12px'>重新登陸</a><br>");
                Response.End();
                return;
            }

            if( !IsPostBack )
            {
                if( Request.QueryString["State"] == null || Request.QueryString["State"].ToString() == String.Empty )
                {
                    Response.Write("錯誤!! 參數出了問題..");
                    Response.End();
                }
                
                ViewState["MState"] = Request.QueryString["State"].ToString();

                if( ViewState["MState"].ToString().Equals("0") )
                {
                    lblState.Text = "未讀信息";
                }
                else
                {
                    lblState.Text = "已讀信息";
                }

                getDataCount();//獲取記錄個數
                getData();
            }
		}

        private void getDataCount()//獲取記錄個數
        {
            string mySql="select count(*) as [num] from [message] where MState=" + ViewState["MState"].ToString();
            DBConn myDB = new DBConn();
            OleDbDataReader mydr = myDB.getDataReader( mySql );
            if( mydr.Read() )
            {
                lblNum.Text = mydr["num"].ToString();
            }
            mydr.Close();
            myDB.Close();      
        }

        private void getData()//綁定數據
        {
            string sql="select * from [message] where MState=" + ViewState["MState"].ToString() + " order by MID desc";

            //分頁
			MyOleDbPager oleDbPager = new MyOleDbPager();
            oleDbPager.setAttribute( OleDbPager1, "messageDataGrid", sql, "1000000-MID", 20);
                
        }

		#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()
		{    
            this.messageDataGrid.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.messageDataGrid_DeleteCommand);
            this.messageDataGrid.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.messageDataGrid_ItemDataBound);
            this.Load += new System.EventHandler(this.Page_Load);

        }
		#endregion

        private void messageDataGrid_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
        {
            if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) 
            { 
                //刪除確認            
                LinkButton delBttn = (LinkButton) e.Item.Cells[5].Controls[0]; 
                delBttn.Attributes.Add("onclick","javascript:return confirm('確定刪除[ " + CleanString.htmlOutputText(e.Item.Cells[2].Text) + " ]?');"); 
            } 
        }

        private void messageDataGrid_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
        {
            string strid = e.Item.Cells[0].Text;
            DBConn myDB = new DBConn();
            string sql="Delete from [message] where MID="+strid;
            myDB.ExecuteNonQuery(sql);
            myDB.Close();

            getData();
        }
	}
}