DesktopModules/Teacher/UpdateTeacher.aspx.cs

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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;
using StudentManager;

public partial class UpdateTeacher : System.Web.UI.Page
{
	int nTeacherID = -1;

	protected void Page_Load(object sender,EventArgs e)
	{
		///获取ID的值
		if (Request.Params["TeacherID"] != null)
		{
			nTeacherID = Int32.Parse(Request.Params["TeacherID"].ToString());
		}

		if (!Page.IsPostBack)
		{
			///绑定控件的数据
			BindDepartmentData();
			if (nTeacherID > -1)
			{
				BindTeacherData(nTeacherID);
			}
		}

		///设置按钮的可用性
		UpdateBtn.Enabled = DepartmentList.Items.Count > 0 && nTeacherID >= 0 ? true : false;
	}

	private void BindDepartmentData()
	{
		///获取数据源
		StudentManager.Department department = new Department();
		SqlDataReader recd = department.GetDepartments();

		///设定控件的数据源，Text域属性、value域属性
		DepartmentList.DataSource = recd;
		DepartmentList.DataTextField = "Desn";
		DepartmentList.DataValueField = "DepartmentID";

		///绑定控件的数据
		DepartmentList.DataBind();

		///关闭数据源和数据库的链接
		recd.Close();
	}

	private void BindTeacherData(int nTeacherID)
	{
		///获取数据