SysManage/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;
public partial class UpdateTeacher : System.Web.UI.Page   
{
    string id = string.Empty;
    protected void Page_Load(object sender, EventArgs e)
    {
        id = Request.QueryString["id"];
        if (!IsPostBack)
        {
            if (Session["UserName"] == null)
            {
                Response.Redirect("Login.aspx");
                return;
            }
            BindCourse();
            Get_Data();
        }
    }

    void Get_Data()
    {
        try
        {
            DataTable dt = DB.getDataTable("select * from Teachers where UserId=" + id);
            if (dt.Rows.Count == 1)
            {
                txtUserName.Enabled = false;
                txtUserName.Text = dt.Rows[0]["UserName"].ToString();
                txtRealName.Text = dt.Rows[0]["RealName"].ToString();
                ddlCourse.SelectedValue = dt.Rows[0]["CourseId"].ToString();
                txtSN.Text = dt.Rows[0]["Sn"].ToString();
                DropDownList2.Text = dt.Rows[0]["Sex"].ToString();
                txtEmail.Text = dt.Rows[0]["Email"].ToString();
                txtPhone.Text = dt.Rows[0]["Telephone"].ToString();
            }
        }
        catch (Exception ex)
        {
            Common.ShowMessage(this.Page, "页面加载时出现异常。", "");
            return;
        }
    }


    protected void Button1_Click(object sender, EventArgs e)
    {
        try
        {
            Label1.Text = "";
            string sql = "update dbo.Teachers set realName='" + txtRealName.Text + "', Email='" + txtEmail.Text.Trim() + "',Telephone='" + txtPhone.Text.Trim() + "',Sn='" + txtSN.Text.Trim() + "',Sex='" + DropDownList2.SelectedItem.Text + "',CourseId='" + ddlCourse.SelectedValue + "' where UserId='" + id + "'";