Error:Control 'txtLastName' of type 'TextBox' must be placed

how to solve bellow maintain error

Error:Control 'txtLastName' of type 'TextBox' must be placed inside a form tag with runat=server.

in asp.net

my registration.aspx page code is bellow

First Name:		runat="server" ControlToValidate="txtFirstName" ErrorMessage="First Name can't be left blank" SetFocusOnError="True">*
Last Name:		ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtLastName" ErrorMessage="Last Name can't be left blank" SetFocusOnError="True">*
UserName:		ID="rfvUserName" runat="server" ControlToValidate="txtUserName" ErrorMessage="UserName can't be left blank" SetFocusOnError="True">*
Password:	TextMode="Password">	runat="server" ControlToValidate="txtPwd" ErrorMessage="Password can't be left blank" SetFocusOnError="True">*
Confirm Password:	TextMode="Password">	runat="server" ControlToCompare="txtRePwd" ControlToValidate="txtPwd" Operator="Equal" ErrorMessage="Password and confirm password do not match" SetFocusOnError="True">
Gender:	runat="server"> Male Female	ID="RequiredFieldValidator2" runat="server" ControlToValidate="rdoGender" ErrorMessage="Gender can't be left blank" SetFocusOnError="True">*
Address:	TextMode="MultiLine">	runat="server" ControlToValidate="txtAdress" ErrorMessage="Address can't be left blank" SetFocusOnError="True">*
Email ID:		ID="RequiredFieldValidator3" runat="server" ControlToValidate="txtEmailID" ErrorMessage="Email can't be left blank" SetFocusOnError="True">*
	runat="server" ShowMessageBox="True" ShowSummary="False"/>
Text="Sign Up" onclick="btnSave_Click"/>

and

my registration.aspx.cs page code is bellow

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Configuration;

using System.Data.SqlClient;

using System.Data;

namespace csvfileupload2

{

public partial class registration : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void btnSave_Click(object sender, EventArgs e)

{

//Create ConnectionString and Inser Statement

string connectionString = ConfigurationManager.ConnectionStrings["Data Source=ANIRUDDHA-PC;Initial Catalog=sark;Integrated Security=True"].ConnectionString;

string insertSql = "INSERT INTO Users (FirstName,LastName,UserName,Password,Email,Address,Gender)"

+ " values (@FirstName,@LastName,@UserName,@Password,@Email,@Address,@Gender)";

//Create SQL connection

SqlConnection con = new SqlConnection(connectionString);

//Create SQL Command And Sql Parameters

SqlCommand cmd = new SqlCommand();

cmd.Connection = con;

cmd.CommandType = CommandType.Text;

cmd.CommandText = insertSql;

SqlParameter firstName = new SqlParameter("@FirstName", SqlDbType.VarChar, 50);

firstName.Value = txtFirstName.Text.ToString();

cmd.Parameters.Add(firstName);

SqlParameter lastName = new SqlParameter("@LastName", SqlDbType.VarChar, 50);

lastName.Value = txtLastName.Text.ToString();

cmd.Parameters.Add(lastName);

SqlParameter userName = new SqlParameter("@UserName", SqlDbType.VarChar, 50);

userName.Value = txtUserName.Text.ToString();

cmd.Parameters.Add(userName);

SqlParameter pwd = new SqlParameter("@Password", SqlDbType.VarChar, 50);

pwd.Value = txtPwd.Text.ToString();

cmd.Parameters.Add(pwd);

SqlParameter email = new SqlParameter("@Email", SqlDbType.VarChar, 50);

email.Value = txtEmailID.Text.ToString();

cmd.Parameters.Add(email);

SqlParameter address = new SqlParameter("@Address", SqlDbType.VarChar, 50);

address.Value = txtAdress.Text.ToString();

cmd.Parameters.Add(address);

SqlParameter gender = new SqlParameter("@Gender", SqlDbType.VarChar, 10);

gender.Value = rdoGender.SelectedItem.ToString();

cmd.Parameters.Add(gender);

try

{

con.Open();

cmd.ExecuteNonQuery();

lblMsg.Text = "User Registration successful";

}

catch (SqlException ex)

{

string errorMessage = "Error in registering user";

errorMessage += ex.Message;

throw new Exception(errorMessage);

}

finally

{

con.Close();

}

please help me

6 Replies

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

Upendra Pratap Shahi11y ago
Accepted answer
Use below code-

string str="Data Source=ANIRUDDHA-PC;Initial Catalog=sark;Integrated Security=True";

SqlConnection con = new SqlConnection(str);

or define in config file the use that like-

<connectionStrings>

<add name="ApplicationServices" connectionString=" Data Source=ANIRUDDHA-PC;Initial Catalog=sark;Integrated Security=True "

/>

connectionStrings>

Mark as accepted answer
Upendra Pratap Shahi11y ago
Thanks for appreciation saroj bhattacharya
11y ago
registration.aspx.cs Line: 25

line 25=
string connectionString = ConfigurationManager.ConnectionStrings["Data Source=ANIRUDDHA-PC;Initial Catalog=sark;Integrated Security=True"].ConnectionString;
Upendra Pratap Shahi11y ago
In which line you have get error for same.
11y ago
now a new error occur that is bellow

Error:Object reference not set to an instance of an object.

please help me
Rajeev Punhani11y ago
As the error suggest you are missing runat="server" from form tag. If you use any server Control then it must be placed in form tag with runat="server".

.
Moreover you cannnot place more than one form with runat="server" in a page.