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

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)

{ }

/// <summary>

/// Login

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

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;

}

/// <summary>

///

/// </summary>

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

&lt;%@ Page Title="" Language="C#" MasterPageFile="~/Master/SiteMain.master" AutoEventWireup="true" CodeFile="Login.aspx.cs" Inherits="Loginaspx" %&gt;

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">

<br />

<tr>

<tr>

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

<asp:Label ID="label1" runat="server" Text="Login">

</td>

</tr>

<tr>

<table>

<tr>

<td>

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

</td>

<td>

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

</td>

<td>

</td>

<td>

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

</td>

</tr>

</table>

</td>

</tr>

<tr>

<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ErrorMessage="Enter user name!"

ControlToValidate="txtUserName" Font-Size="9pt" ForeColor="#FF9900" ValidationGroup="Login">*

</label>

<asp:TextBox ID="txtusername" TabIndex="1" runat="server" ForeColor="#96CDE0" >

<%-- <br />

<span style="color: #EBEBEB">(e.g. [email protected]</span>--%>

</td>

</tr>

<tr>

<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="Enter valid password!"

ControlToValidate="txtPassword" ForeColor="#FF9900" ValidationGroup="Login">*

</label>

<asp:TextBox ID="txtPassword" TabIndex="1" runat="server" ForeColor="#96CDE0"

TextMode="Password">

</td>

</tr>

<tr>

<table>

<tr>

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

</td>

<td>

<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">

</td>

</tr>

</table>

</td>

</tr>

<tr>

<br />

</td>

</tr>

<%-- <tr>

<asp:CheckBox ID="cbRememberMe" runat="server" Checked="true" Text="Remember me"

ForeColor="#41a5c6" Font-Size="5pt" TabIndex="1" />

</td>

</tr>--%>

<tr>

<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" />

</td>

</tr>

</table>

</td>

</tr>

</table>

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Sujeet Raman10y ago
1. runat="server" alredy is there
2.only cs file and converted in to web app
3.all are matching
0
Manas Mohapatra10y ago
Find below solutions to resolve problem : "control name doesn't exist"

1. If you haveHTML 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.
0