login.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 Mysqlserver;

public partial class login : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            this.btn_enter.Attributes.Add("onclick", "return isNull();");
            this.btn_reset.Attributes.Add("onclick", "return Clear();");
        }
    }
    protected void btn_enter_Click(object sender, EventArgs e)
    {

        SqlServerDataBase db = new SqlServerDataBase();
        SqlConnection conn = db.DBconn();

        string upper_user_id = this.txt_user.Text.Trim();
        upper_user_id = upper_user_id.ToUpper();
        string sqlStr = "select * from user_info where (user_id='" + this.txt_user.Text.Trim() + "'or user_id='" + upper_user_id + "') and user_pwd='" + this.txt_pwd.Text.Trim() + "'";
        DataSet ds = db.Select(sqlStr, conn);
        if (ds.Tables[0].Rows.Count > 0)
        {
            Session["user_name"] = ds.Tables[0].Rows[0]["user_name"].ToString().Trim ();
            Session["user_id"] = ds.Tables[0].Rows[0]["user_id"].ToString().Trim ();
            Session["user_role"] = ds.Tables[0].Rows[0]["user_role"].ToString().Trim ();
            forwardModule();
        }
        else
        {
            Response.Write("<script>alert('用户名或密码错误，请重新输入!')</script>");
        }
        
    }

    private void forwardModule()
    {
        //转跳到主工作界面
        string forwardTo = "workMain.aspx";

        Response.Write("<script language='javascript'>");
        Response.Write("var leftX=20;");
        Response.Write("var topX=20;");
        Response.Write("window.location.href='" + forwardTo + "';");
        Response.Write("</script>");

    }
}