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 TestOnline
{
	/// <summary>
	/// teacher 的摘要說明。
	/// </summary>
	public class teacher : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox tbx_oldPwd;
		protected System.Web.UI.WebControls.TextBox tbx_newPwd1;
		protected System.Web.UI.WebControls.TextBox tbx_newPwd2;
		protected System.Web.UI.WebControls.ImageButton Ibtn_ok;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此處放置用戶代碼以初始化頁面
			if(Session["teacherId"]==null)
					Response.Redirect("login.aspx");
						

		}

		#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.Ibtn_ok.Click += new System.Web.UI.ImageClickEventHandler(this.Ibtn_ok_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Ibtn_ok_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			string teacherId=Convert.ToString(Session["teacherId"]);
			string teacherPwd=tbx_oldPwd.Text.Trim();
			string newPwd1=tbx_newPwd1.Text.Trim();
			string newPwd2=tbx_newPwd2.Text.Trim();
			if(newPwd1==""||newPwd2=="")
				Response.Write("<script>alert(\"密碼不能為空\");</script>");
			else
			{
				int count=(new projClass()).getTeacher(teacherId,teacherPwd);
				if(count==0)
				{
					Response.Write("<script>alert(\"密碼錯誤!請重新輸入\");</script>");
				}
				else
				{
					if(!newPwd1.Equals(newPwd2))
						Response.Write("<script>alert(\"兩次密碼不一致!請重新輸入!\");</script>");
					else
					{
						int count1=(new projClass()).updateTeacherPwd(teacherId,newPwd1);
						if(count1==1)
							Response.Write("<script>alert(\"密碼修改成功!\");</script>");
						else  Response.Write("<script>alert(\"更新失敗!\");</script>");
					}
				}
			}
		}
	}
}