houtai.aspx.cs

一个简单的聊天代码

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;

public partial class houtai : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }
    protected void Button1_Click1(object sender, EventArgs e)
    
    {
        if (TextBox1.Text == "")
        {
            Sp.MessageBox.Show(this.Page, "请输入用户名！");
        }
        else if (TextBox2.Text == "")
        { Sp.MessageBox.Show(this.Page, "请输入密码！"); }
        else
        {
            string pu, pw;
            pu = spstr.tosql(TextBox1.Text);
            pw = spstr.tosql(TextBox2.Text);
            string sql = "select * from usercenter where usertext='" + pu + "' and userpass='" + pw + "' and sx='管理员'";
            DataTable dt = new DataTable();
            dt = Spbase.GreatDs(sql).Tables[0];

            if (dt.Rows.Count > 0)
            {
                Response.Write("<script language=javascript>alert('您已经成功登陆!');top.location.href='admin/back_admin.aspx';</script>");
            }
            else { Response.Write("<script language=javascript>alert('非法登陆!');</script>"); }
        }
    }
}