控制相关问题 [英] Control related issue

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问题描述

尊敬的先生，

我的页面出现错误当前上下文中不存在名称txtbox".这意味着所有控件都出现错误.
ASPX和ASPX.CS文件是-

Respected Sir,

I have a page in which i m getting error "Name txtbox does not exist in current context".It means all the controls are giving error .
ASPX and ASPX.CS file are -

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.Web.Mail;
using RichClass;

public partial class control_userdownloads : System.Web.UI.UserControl
{
    adddownload ad = new adddownload();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            addnews adn = new addnews();
            TABLE3.Visible = true;
            dldown.Visible = false;
            bindDownLoad();
            //if (Request.QueryString["uname"] != null)
            //{
            //    if (Session["uname"].ToString() == "0")
            //    {
            //        object obj = RichClass.Security.DecryptData(Request.QueryString["uname"]);
            //        bool chk = adn.selUserfirsttime(obj.ToString());
            //        if (chk == true)
            //        {
            //            dldown.Visible = true;
            //            TABLE3.Visible = false;
            //            Session["uname"] = TextBox1.Text;
            //        }
            //        else
            //        {
            //            showmessage("E-mail ID not matched! Please enter the below required information.");
            //        }
            //    }
            //}
        }
        if (Session["uname"].ToString() != "0")
        {
            TABLE3.Visible = false;
            dldown.Visible = true;

        }
    }
    public bool getNote(object objNote)
    {
        if (objNote == null || objNote == System.DBNull.Value || objNote.ToString() == " " || objNote.ToString() == "")
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    void bindDownLoad()
    {
        DataSet ds;
        ds = ad.SelectAllCourse();
        if (ds.Tables[0].Rows.Count > 0)
        {
            dldown.DataSource = ds;
            dldown.DataBind();
        }
        else
        {
            dldown.Visible = false;
        }
    }
    protected void dldown_ItemDataBound(object sender, DataListItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            //DataSet d = ad.SelectAllCourse();
            //string not = d.Tables[0].Rows[0]["nt"].ToString();
            //if (not == "")
            //{
            //    ((Label)e.Item.FindControl("lblnt")).Visible = false;
            //}
            //else
            //{
            //    ((Label)e.Item.FindControl("lblnt")).Visible = true;
            //}
        }
    }
    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        if (degree().ToString() != "")
        {
            addnews ad = new addnews();
            bool chk = ad.insertuser(txtname.Text, txtsdt.Text, txtFname.Text, txtemail.Text, txtphone.Text, txtMobile.Text, txtCity.Text, degree().ToString());
            if (chk == true)
            {

                dldown.Visible = false;
                showmessage("Congrats! Now you can download the available information!");
                dldown.Visible = true;
                TABLE3.Visible = false;
                Session["uname"] = txtemail.Text.Trim();
                showmessage("Congrats! Now you can download information. please check your e-mail!");
                  string uname = RichClass.Security.EncryptData(txtemail.Text.Trim());
                 string url = "http://www.shridharuniversity.ac.in/download.aspx?uname=" + uname + "";
                sendmail();
                usermail(url); 
                clrall();
            }
            else
            {
                showmessage("Your E-mail ID Already Exist!");
            }
        }
        else
        {
            showmessage("Please check atleast one interested Degree!");
        }
    }
    public void showmessage(string str)
    {
        ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(), "clientScript", " alert('" + str + "')", true);
    }
    public string degree()
    {
        string str = "";
        foreach (ListItem ll in CheckBoxList1.Items)
        {
            if (ll.Selected == true)
            {
                str += ll.Text + ", ";
            }
        }
        if (str == "")
        {
        }
        else
        {
            str = str.Substring(0, str.Length - 2);
        }
        return str;
    }
    public void clrall()
    {
        txtname.Text = "";
        txtsdt.Text = "";
        txtFname.Text = "";
        txtemail.Text = "";
        txtphone.Text = "";
        txtMobile.Text = "";
        txtCity.Text = "";
    }
    protected void lnkNewUser_Click(object sender, EventArgs e)
    {
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        addnews ad = new addnews();
        bool chk = ad.selUser(TextBox1.Text);
        if (chk == true)
        {
            dldown.Visible = true;
            TABLE3.Visible = false;
            Session["uname"] = TextBox1.Text;
        }
        else
        {
            showmessage("E-mail ID not matched! Please enter the below required information.");
        }

    }
    protected void lnkLogin_Click(object sender, EventArgs e)
    {
    }
    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        Response.Redirect("test.aspx");
    }
    public void sendmail()
    {
        string message = "<table><tr><td>Name:</td><td>" + txtname.Text + "</td></tr><tr><td>Date of Birth:</td><td>" + txtsdt.Text + "</td></tr><tr><td>Father's Name:</td><td>" + txtFname.Text + "</td></tr><tr><td>e-mail:</td><td>" + txtemail.Text + "</td></tr><tr><td >Phone No:</td><td>" + txtphone.Text + "</td></tr><tr><td> Mobile:</td><td>" + txtMobile + "</td></tr><tr> <td> City:</td><td> " + txtCity.Text + "</td></tr> <tr><td>  Degree interested in</td> <td>" + degree().ToString() + "</td></tr></table>";

        string smtpServer = "mail.webshree.com";
        int cdoBasic = 1;
        int cdoSendUsingPort = 2;
        System.Web.Mail.MailMessage objMail = new System.Web.Mail.MailMessage();
        objMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserver", smtpServer);
        objMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport", 25);
        objMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusing", cdoSendUsingPort);
        objMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", cdoBasic);
        objMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", "adminmail@webshree.com");
        objMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", "okmijn#215");
        //Dim objMail As New MailMessage
        objMail.To = "info@shridharuniversity.ac.in";
        objMail.Bcc = "webshri@gmail.com";
        objMail.From = txtemail.Text;
        objMail.Subject = "New Candidate@Download Section";
        objMail.BodyFormat = MailFormat.Html;
        objMail.Body = message;
        try
        {
            SmtpMail.SmtpServer = "mail.webshree.com";
            SmtpMail.Send(objMail);
        }
        catch (Exception ex)
        {
            // SmtpMail.Send(objMail);
        }
    }

    public void usermail(string url)
    {
        string message = "<table border=0 cellpadding=0 cellspacing=0><tr><td> Dear " + txtname.Text + ",</td></tr><tr><td>Welcome to Shridhar University, for Download information please click below link:</td></tr><tr><td> " + url + "</td></tr></table>";

        string smtpServer = "mail.webshree.com";
        int cdoBasic = 1;
        int cdoSendUsingPort = 2;
        System.Web.Mail.MailMessage objMail = new System.Web.Mail.MailMessage();
        objMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserver", smtpServer);
        objMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport", 25);
        objMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusing", cdoSendUsingPort);
        objMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", cdoBasic);
        objMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", "adminmail@webshree.com");
        objMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", "okmijn#215");
        //Dim objMail As New MailMessage
        objMail.To = txtemail.Text.Trim();
        objMail.Bcc = "webshri@gmail.com";
        objMail.From = "info@shridharuniversity.ac.in";
        objMail.Subject = "New Candidate@Download Section";
        objMail.BodyFormat = MailFormat.Html;
        objMail.Body = message;
        try
        {
            SmtpMail.SmtpServer = "mail.webshree.com";
            SmtpMail.Send(objMail);
        }
        catch (Exception ex)
        {
            // SmtpMail.Send(objMail);
        }
    }
      
  
}




.ASPX文件是-




.ASPX FILE IS--

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="userdownloads.ascx.cs" Inherits="control_userdownloads" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
     
<table border="0" cellpadding="0" cellspacing="0" width="470" id="TABLE3"  runat="server"  >
    <tr>
        <td align="center">
           <h3> If you already entered the below Information please enter only your Email.</h3></td>
    </tr>
    <tr>
        <td>
            <table id="TABLE2"  runat="server" border="0" cellpadding="0" cellspacing="0" class="feedbackFrm" width="100%">
                <tr>
                    <td width="150px">
                        E-mail*:</td>
                    <td>
                        <asp:TextBox ID="TextBox1" runat="server"><br /><asp:RequiredFieldValidator

                            ID="RequiredFieldValidator7" runat="server" ControlToValidate="TextBox1" Display="Dynamic"

                            ErrorMessage="Email Required!" ValidationGroup="sss"><asp:RegularExpressionValidator

                                ID="RegularExpressionValidator7" runat="server" ControlToValidate="TextBox1"

                                Display="Dynamic" ErrorMessage="Invalid Email!" ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"

                                ValidationGroup="sss"></td>
                </tr>
                <tr>
                    <td>
                    </td>
                    <td>
                        <asp:Button ID="Button1" CssClass="btn" runat="server" Text="Submit" OnClick="Button1_Click" ValidationGroup="sss" /></td>
                </tr>
            
            <table width="100%" id="TABLE1"  runat="server" border="0" cellpadding="0" cellspacing="0" class="feedbackFrm">
                <tr>
                    <td width="150px">                        
                          Name*:</td>
                    <td>
                        <asp:TextBox ID="txtname" runat="server"><br /><asp:RequiredFieldValidator

                            ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtname" Display="Dynamic"

                            ErrorMessage="Name Required!" ValidationGroup="vldgrp"><asp:RegularExpressionValidator

                                ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtname" Display="Dynamic"

                                ErrorMessage="Invalid Name!" ValidationExpression="^[^<>%\/@#$]{3,50}$" ValidationGroup="vldgrp"></td>
                </tr>
                <tr>
                    <td>
                       
                                Date of Birth*:</td>
                    <td>
                        <asp:TextBox ID="txtsdt" runat="server"><br />
                        <cc1:calendarextender id="CalendarExtender1"  runat="server" format="d/M/yyyy" targetcontrolid="txtsdt">
                        <asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server" ControlToValidate="txtsdt"

                            Display="Dynamic" ErrorMessage="Date of Birth Required!" ValidationGroup="vldgrp">
                        <asp:RegularExpressionValidator ID="RegularExpressionValidator6" runat="server" ControlToValidate="txtsdt"

                            Display="Dynamic" ErrorMessage="Date of Birth!" ValidationExpression="^[^<>%\@#$]{3,50}$"

                            ValidationGroup="vldgrp"></td>
                </tr>
                <tr>
                    <td>
                        
                                Father's Name*:</td>
                    <td>
                        <asp:TextBox ID="txtFname" runat="server"><br /><asp:RequiredFieldValidator

                            ID="RequiredFieldValidator2" runat="server" ControlToValidate="txtFname" Display="Dynamic"

                            ErrorMessage="Father's Name Required!" ValidationGroup="vldgrp"><asp:RegularExpressionValidator

                                ID="RegularExpressionValidator2" runat="server" ControlToValidate="txtFname"

                                Display="Dynamic" ErrorMessage="Invalid Father's Name !" ValidationExpression="^[^<>%\/@#$]{3,50}$"

                                ValidationGroup="vldgrp"></td>
                </tr>
                <tr>
                    <td>
                        E-mail*:</td>
                    <td>
                        <asp:TextBox ID="txtemail" runat="server"><br /><asp:RequiredFieldValidator

                            ID="RequiredFieldValidator3" runat="server" ControlToValidate="txtemail" Display="Dynamic"

                            ErrorMessage="Email Required!" ValidationGroup="vldgrp"><asp:RegularExpressionValidator

                                ID="RegularExpressionValidator3" runat="server" ControlToValidate="txtemail"

                                Display="Dynamic" ErrorMessage="Invalid Email!" ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"

                                ValidationGroup="vldgrp"></td>
                </tr>
                <tr>
                    <td>                       
                                Phone No*:</td>
                    <td>
                        <asp:TextBox ID="txtphone" runat="server"><br /><asp:regularexpressionvalidator

                            id="RegularExpressionValidator9" runat="server" controltovalidate="txtphone"

                            display="Dynamic" errormessage="Invalid Phone" validationexpression="^[0-9-]{6,100}$"

                            validationgroup="vldgrp">
                        <asp:requiredfieldvalidator id="RequiredFieldValidator14" runat="server" controltovalidate="txtphone"

                            display="Dynamic" errormessage="Enter Phone!" validationgroup="vldgrp">
                    </td>
                </tr>
                <tr>
                    <td>
                        
                                Mobile*:</td>
                    <td>
                        <asp:TextBox ID="txtMobile" runat="server"><br /><asp:RegularExpressionValidator

                            ID="Regularexpressionvalidator4" runat="server" ControlToValidate="txtMobile"

                            Display="Dynamic" ErrorMessage="Invalid Mobile" ValidationExpression="^[0-9-]{10,100}$"

                            ValidationGroup="vldgrp">
                        <asp:RequiredFieldValidator ID="Requiredfieldvalidator4" runat="server" ControlToValidate="txtMobile"

                            Display="Dynamic" ErrorMessage="Enter Mobile!" ValidationGroup="vldgrp"></td>
                </tr>
                <tr>
                    <td>
                       
                                City*:</td>
                    <td>
                        <asp:TextBox ID="txtCity" runat="server"><br /><asp:RequiredFieldValidator

                            ID="RequiredFieldValidator5" runat="server" ControlToValidate="txtCity" Display="Dynamic"

                            ErrorMessage="City Required!" ValidationGroup="vldgrp"><asp:RegularExpressionValidator

                                ID="RegularExpressionValidator5" runat="server" ControlToValidate="txtCity" Display="Dynamic"

                                ErrorMessage="Invalid City!" ValidationExpression="^[^<>%\/@#$]{3,50}$" ValidationGroup="vldgrp"></td>
                </tr>
                <tr>
                    <td valign="top">
                        Degree interested in*</td>
                    <td valign="top">
                        <asp:CheckBoxList ID="CheckBoxList1" runat="server" RepeatColumns="5">
                            <asp:ListItem>Diploma
                            <asp:ListItem>UG
                            <asp:ListItem>PG
                            <asp:ListItem>Research
                            <asp:ListItem>Certificate
                        </td>
                </tr>
                <tr>
                    <td>
                    </td>
                    <td>
                        <asp:Button ID="btnSubmit" runat="server" CssClass="btn" Text="Submit" OnClick="btnSubmit_Click" ValidationGroup="vldgrp" /></td>
                </tr>
                <tr>
                    <td>
                    </td>
                    <td>
                      </td>
                </tr>
            
        </td>
    </tr>
    <tr>
        <td>
     
</td>
    </tr>

     
<asp:DataList ID="dldown" runat="server" RepeatColumns="1" OnItemDataBound="dldown_ItemDataBound" CssClass="dwnld"><itemtemplate>
  <h3> <asp:HyperLink ID="hyp" runat="server" Text='<%# Eval("hd") %>'  NavigateUrl='<%# "~/downloads/"+Eval("fname") %>' Target="_blank"></h3>
   <p class="note"  runat="server" id="noteid" visible='<%# getNote(Eval("nt")) %>'>
  <asp:Label ID="lblnt" runat="server" Text='<%# "Note: " + Eval("nt")%>' visible='<%# getNote(Eval("nt")) %>'>
   </itemtemplate>

<asp:UpdatePanel ID="UpdatePanel1" runat="server">



I am getting error while controls are on .aspx.


PLs help me out.

谢谢
Abhishek



I am getting error while controls are on .aspx.


PLs help me out.

Thanks
Abhishek

推荐答案

{3,50}


" ValidationGroup="vldgrp"></td> < /tr > < tr > < td > Date of Birth*:</td> < td > <asp:TextBox ID="txtsdt" runat="server"><br /> <cc1:calendarextender id="CalendarExtender1" runat="server" format="d/M/yyyy" targetcontrolid="txtsdt"> <asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server" ControlToValidate="txtsdt" Display="Dynamic" ErrorMessage="Date of Birth Required!" ValidationGroup="vldgrp"> <asp:RegularExpressionValidator ID="RegularExpressionValidator6" runat="server" ControlToValidate="txtsdt" Display="Dynamic" ErrorMessage="Date of Birth!" ValidationExpression="^[^<>%\@#
" ValidationGroup="vldgrp"></td> </tr> <tr> <td> Date of Birth*:</td> <td> <asp:TextBox ID="txtsdt" runat="server"><br /> <cc1:calendarextender id="CalendarExtender1" runat="server" format="d/M/yyyy" targetcontrolid="txtsdt"> <asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server" ControlToValidate="txtsdt" Display="Dynamic" ErrorMessage="Date of Birth Required!" ValidationGroup="vldgrp"> <asp:RegularExpressionValidator ID="RegularExpressionValidator6" runat="server" ControlToValidate="txtsdt" Display="Dynamic" ErrorMessage="Date of Birth!" ValidationExpression="^[^<>%\@#


{3,50}


这篇关于控制相关问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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