Please help why controls name doesn't exist error!!

Question

Hi all please help me am not able to find out the reason for why page controls does not exist..there is no error in my master page(its a copied solution for studying purpose) version problems are fixed but still showing error(now working in VS 2013 the project version was 2.0) * one of my page using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Data; using System.Data.SqlClient; using System.Web.Security; public partial class Loginaspx : System.Web.UI.Page { #region DATABASE_MEMBER DataVariables objDataVar = new DataVariables(); DAL objDAL = new DAL(); LoginCredentials objLoginCred = new LoginCredentials(); LoginDAL objLoginDAL = new LoginDAL(); #endregion protected void Page_Load(object sender EventArgs e) { if (!IsPostBack) { bindUserType(); } } protected void btnCheck_Click1(object sender EventArgs e) { } ///

/// Login ///

/// /// protected void btnLogin_Click(object sender ImageClickEventArgs e) { try { // error in following control(txtusername etc) objLoginCred.UserID = txtusername.Text.Trim(); objLoginCred.Password = txtPassword.Text.Trim(); objLoginCred.UserType = ddlUserType.SelectedItem.ToString(); /*Get records on the basis of use credentials*/ objDataVar.dtstEstOff = objLoginDAL.GetLogin(objLoginCred); /*Check whether Fetched datatable HAS records or NOT */ if (objDataVar.dtstEstOff.Tables[0].Rows.Count > 0) { Session["USERID"] = objLoginCred.UserID; Session["USERTYPE"] = objLoginCred.UserType; // Roles.CreateRole("members"); // Session["sitemap"] = GetDataSource(objLoginCred.UserType Server.MapPath("~")); if(!Roles.RoleExists(objLoginCred.UserType)) { Roles.CreateRole(objLoginCred.UserType); Roles.AddUserToRole(objLoginCred.UserID objLoginCred.UserType); } Response.Redirect("~//HomePage.aspx" false); } else { ClientScript.RegisterStartupScript(GetType() "Error" "alert('Invalid UserName / Password !')" true); // Invalid UserName/Password } } catch (Exception ex) { } } XmlDataSource GetDataSource(string UserRole string ServerPath) { XmlDataSource objData = new XmlDataSource(); objData.XPath = "siteMap/siteMapNode"; switch (UserRole) { case "Administrator": objData.DataFile = ServerPath + @"/web.sitemap"; Roles.AddUserToRole(objLoginCred.UserType "Administrator"); break; case "Department": objData.DataFile = ServerPath + @"/Department.sitemap"; Roles.CreateRole("Department"); Roles.AddUserToRole(objLoginCred.UserType "Department"); break; case "Vendor": objData.DataFile = ServerPath + @"/User.sitemap"; Roles.CreateRole("Vendor"); Roles.AddUserToRole(objLoginCred.UserType "Vendor"); break; default: objData.DataFile = ServerPath + @"/Default.sitemap"; break; } objData.DataBind(); return objData; } ///

/// ///

public void bindUserType() { // error in following control(ddlusertype) objDataVar.dtstEstOff = objLoginDAL.GetUserType(); // objDataVar.dtblEstOff= objDataVar.dtstEstOff.Tables[0]; ddlUserType.DataSource = objDataVar.dtstEstOff.Tables[0]; ddlUserType.DataTextField = "UserType"; ddlUserType.DataValueField = "UserType"; ddlUserType.DataBind(); } } //here is my current design page <%@ Page Title="" Language="C#" MasterPageFile="~/Master/SiteMain.master" AutoEventWireup="true" CodeFile="Login.aspx.cs" Inherits="Loginaspx" %> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %> <asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server"> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">

<%-- --%>

<asp:Image runat="server" ID="imgLogo" ImageUrl="~/Images/IISc_logo_mncf_32.png" /> <asp:Label ID="label1" runat="server" Text="Login">

<asp:Image ID="Image2" runat="server" ImageUrl="~/Images/user_cut.png" />

<asp:Label ID="labelUserType" runat="server" Text="User Type" Font-Bold="True">

<asp:DropDownList ID="ddlUserType" runat="server">

<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ErrorMessage="Enter user name!" ControlToValidate="txtUserName" Font-Size="9pt" ForeColor="#FF9900" ValidationGroup="Login">* <label for="EmailLogin" class="Hidden"> </label> <asp:TextBox ID="txtusername" TabIndex="1" runat="server" ForeColor="#96CDE0" > <%--
(e.g. email@gmail.com--%>

<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="Enter valid password!" ControlToValidate="txtPassword" ForeColor="#FF9900" ValidationGroup="Login">* <label for="PassLogin" class="Hidden"> </label> <asp:TextBox ID="txtPassword" TabIndex="1" runat="server" ForeColor="#96CDE0" TextMode="Password">

<asp:Image runat="server" ID="Image1" ImageUrl="~/Images/information_icon_20.png" />

<asp:LinkButton ID="lbtnForgotPassword" runat="server" Text="Forgot password" TabIndex="1" Style="color: #99d4e8; font-weight: bold; text-decoration: underline; font-size: 10pt;" Font-Bold="True">

<asp:CheckBox ID="cbRememberMe" runat="server" Checked="true" Text="Remember me" ForeColor="#41a5c6" Font-Size="5pt" TabIndex="1" />

<asp:ImageButton ID="btnLogin" runat="server" ImageUrl="~/Images/login_button.png" TabIndex="1" BackColor="#214682" ValidationGroup="Login" OnClick="btnLogin_Click" /> <asp:ValidationSummary ID="ValidationSummary1" runat="server" BackColor="#3C6AAA" ShowMessageBox="True" ShowSummary="False" ValidationGroup="Login" />

Karthik Kumar · Answer

1. runat=server alredy is there 2.only cs file and converted in to web app 3.all are matching

Manas Mohapatra · Answer

Find below solutions to resolve problem : control name doesn't exist 1. If you have HTML element and you are trying to access in the C# code the following value must be placed in the HTML element tag in the aspx file: runat=server Some objects in the Toolbox in the Visual Studio IDE do not automatically include this value when added to the page. 2. In the Solution Explorer under the aspx file there should be two files: *.aspx.cs and *.aspx.designer.cs. The designer file is auto-generated. Delete the existing *.aspx.designer.cs file. Make sure you only delete the designer file. Do not delete the other one because it contains your C# code for the page. Right-click on the parent aspx file. In the pop-up menu select Convert to Web Application. 3.Check your code behind file name and Inherits property on the @Page directive make sure they both match.