filluserid.aspx.cs

用c#实现的BBS论坛。主要提供了三种角色：游客（没有注册的用户）、已经注册的用户和后台管理员。当游客进入论坛之后

using System;
using System.Data;
using System.Data.SqlClient;
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;

public partial class FrontDesk_FindPwd_FillUserID : System.Web.UI.Page
{
    DataCon myCon = new DataCon();
    protected void btnSure_Click(object sender, EventArgs e)
    {
        SqlConnection sqlconn = myCon.getCon();
        sqlconn.Open();
        SqlCommand sqlcom = new SqlCommand("select count(*) from tb_User where UserID='" + txtUserID.Text + "'", sqlconn);
        int count = Convert.ToInt32(sqlcom.ExecuteScalar());
        if (count > 0)
        {
            Session["UserID"] = txtUserID.Text;//给FillQuePwd.aspx和FindPwd.aspx页传值
            Response.Redirect("FillQuePwd.aspx");
        }
        else
        {
            Response.Write("<script>alert('没有该用户ID');location='javascript:history.go(-1)'</script>");
            return;
        }
        sqlconn.Close();
    }
}