新手求助！页面登录失败！
protected void Page_Load(object sender, EventArgs e) { if(!Page.IsPostBack) { sCap = Createcapstring(6); //验证码字符创建 capimg.Src = sCapimageurl + sCap; } } protected void logbut_Click(object sender, EventArgs e) { if(Page.IsValid == true) { if(captxt.Text != sCap) { string errortext = "验证码错误！"; capref.Text = errortext; Response.Write("<script>alert('验证码错误!')</script>"); sCap = Createcapstring(6); capimg.Src = sCapimageurl + sCap; } string adminid = ""; //string adminname = Server.HtmlEncode(username.Text.Trim()); //string adminpsd = Server.HtmlEncode(password.Text.Trim()); string adminname = username.Text.Trim(); string adminpsd = password.Text.Trim(); string str = "SELECT * FROM T_Admin WHERE F_UserName='" + adminname + "' AND F_Password='" + password + "';"; olecmd = new OleDbCommand(str, olecon); try { olecon.Open(); OleDbDataReader oledr = olecmd.ExecuteReader(CommandBehavior.CloseConnection); if (oledr.Read()) { adminid = oledr["AdminID"].ToString(); Session["AdminID"] = adminid; Response.Redirect("~/Crmain.aspx"); } else { Response.Write("<script>alert('用户名或密码有误!')</script>"); } oledr.Close(); oledr.Dispose(); } catch (OleDbException oleex) { throw oleex; } finally { olecon.Close(); } } } if (oledr.Read()) { adminid = oledr["AdminID"].ToString(); Session["AdminID"] = adminid; Response.Redirect("~/Crmain.aspx"); }