?using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class AddSubject : System.Web.UI.Page
{
	protected void Page_Load(object sender,EventArgs e)
	{   
		if(!Page.IsPostBack)
		{   ///顯示數(shù)據(jù)
			BindTopicData();
		}
		AddBtn.Enabled = TopicList.Items.Count > 0 ? true : false;
	}
	private void BindTopicData()
	{   ///獲取數(shù)據(jù)
		ITopic topic = new Topic();
		SqlDataReader dr = topic.GetTopics();
		///綁定數(shù)據(jù)
		TopicList.DataSource = dr;
		///設(shè)置Text屬性和Value屬性的值
		TopicList.DataTextField = "Name";
		TopicList.DataValueField = "TopicID";
		TopicList.DataBind();
		///關(guān)閉數(shù)據(jù)源
		dr.Close();
	}
	protected void AddBtn_Click(object sender,EventArgs e)
	{
		try
		{   ///定義對(duì)象
			ISubject subject = new Subject();
			///執(zhí)行數(shù)據(jù)庫(kù)操作
			subject.AddSubject(Name.Text.Trim(),
				Int32.Parse(ModeList.SelectedValue),
				Int32.Parse(TopicList.SelectedValue));
			Response.Write("<script>alert('" + "添加數(shù)據(jù)成功，請(qǐng)妥善保管好你的數(shù)據(jù)！" + "');</script>");
		}
		catch(Exception ex)
		{   ///跳轉(zhuǎn)到異常錯(cuò)誤處理頁(yè)面
			Response.Redirect("ErrorPage.aspx?ErrorMsg=" + ex.Message.Replace("<br>","").Replace("\n","")
				+ "&ErrorUrl=" + Request.Url.ToString().Replace("<br>","").Replace("\n",""));
		}
	}
	protected void ReturnBtn_Click(object sender,EventArgs e)
	{   ///跳轉(zhuǎn)到管理頁(yè)面
		Response.Redirect("~/SubjectManage.aspx");
	}
}