ASP.NET

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Linq;
using System.Net.Mail;
using System.Web;
using System.Text;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public partial class Contact_Us : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        
        if(!Page.IsPostBack)
        {
            About_Data();
        }
    }

    public void About_Data()
    {
        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["newcon"].ConnectionString);
        SqlCommand cmd = new SqlCommand();
        cmd.Connection = con;
        cmd.CommandText = "select page_text,heading from PAGES where pid='10'";
        cmd.Connection.Open();
        SqlDataReader rdr = cmd.ExecuteReader();
        while (rdr.Read())
        {
            string ctext = rdr["page_text"].ToString();
            string htext = rdr["heading"].ToString();
            LblText.Text = ctext;
            LblHeading.Text = htext;
        }
        cmd.Connection.Close();
    }

    protected void BtnSubmit_Click(object sender, EventArgs e)
    {
        string y = BtnSubmit.ValidationGroup;
        Page.Validate(y);
        save_to_database();
        send_data_to_mail();
        TxtName.Text = "";
        TxtEmail.Text = "";
        TxtPhone.Text = "";
        TxtMessage.Text = "";
    }

    protected void BtnReset_Click(object sender, EventArgs e)
    {
        TxtName.Text = "";
        TxtEmail.Text = "";
        TxtPhone.Text = "";
        TxtMessage.Text = "";
    }

    public void save_to_database()
    {

        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["newcon"].ConnectionString);
        SqlCommand cmd = new SqlCommand();
        cmd.Connection = con;
        cmd.CommandText = "insert into CONTACTUS (name,email,phone,message) values(@name,@email,@phone,@message)";
        cmd.Parameters.Add("@name", SqlDbType.NVarChar, 100).Value = TxtName.Text.Trim();
        cmd.Parameters.Add("@email", SqlDbType.NVarChar, 100).Value = TxtEmail.Text.Trim();
        cmd.Parameters.Add("@phone", SqlDbType.NVarChar, 100).Value = TxtPhone.Text.Trim();
        cmd.Parameters.Add("@message", SqlDbType.NVarChar, 4000).Value = TxtMessage.Text.Trim();
        cmd.Connection.Open();
        cmd.ExecuteNonQuery();
        LblMsg.Text = "Your details are successfully saved in our database. We will get back to you soon!<br/> Thank you. ";
        LblMsg.ForeColor = Color.Navy;

        cmd.Connection.Close();
    }

    public void send_data_to_mail()
    {

            MailHelper.SendMailMessage(TxtEmail.Text, "rohanrajpoot@hotmail.com", "rohanrajpoot@in.com", "puneet.009@gmail.com", "This person has contacted us!", TxtMessage.Text);
    }
}

<table align="center" class="appform" width="100%"  cellpadding="2px" cellspacing="1px" border="0px"><br />
                <tr valign="top" align="left"><br />
                    <td colspan="2"><br />
                    <asp:Label ID="LblMsg" runat="server"></asp:Label><br />
                    </td><br />
                    <td>&nbsp;<br />
                    </td><br />
                </tr><br />
                <tr valign="top" align="left"><br />
                    <td><br />
                        Name:*</td><br />
            <td><br />
                <asp:TextBox ID="TxtName" runat="server" Width="270px" <br />
                    ValidationGroup="contact" CausesValidation="True"></asp:TextBox><br />
            </td><br />
            <td><br />
                <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" <br />
                    ControlToValidate="TxtName" Display="Dynamic" ErrorMessage="*" <br />
                    ValidationGroup="contact"></asp:RequiredFieldValidator><br />
                                            </td><br />
        </tr><br />
                <tr valign="top" align="left"><br />
            <td><br />
                Email ID:*</td><br />
            <td><br />
                <asp:TextBox ID="TxtEmail" runat="server" Width="270px" <br />
                    ValidationGroup="contact"></asp:TextBox><br />
            </td><br />
            <td><br />
                &nbsp;</td><br />
        </tr><br />
                <tr valign="top" align="left"><br />
            <td><br />
                Phone Number:*</td><br />
            <td><br />
                <asp:TextBox ID="TxtPhone" runat="server" Width="270px" <br />
                    ValidationGroup="contact"></asp:TextBox><br />
            </td><br />
            <td><br />
                &nbsp;</td><br />
        </tr><br />
                <tr valign="top" align="left"><br />
            <td valign="top"><br />
                Message:*</td><br />
            <td><br />
                <asp:TextBox ID="TxtMessage" runat="server" TextMode="MultiLine" Width="270px" <br />
                    Height="150px" ValidationGroup="contact"></asp:TextBox><br />
            </td><br />
            <td valign="top"><br />
                            &nbsp;</td><br />
        </tr><br />
                <tr valign="top" align="left"><br />
            <td><br />
                &nbsp;</td><br />
            <td><br />
                <asp:Button ID="BtnSubmit" runat="server" onclick="BtnSubmit_Click" <br />
                    Text="Submit" ValidationGroup="contact" /><br />
                <asp:Button ID="BtnReset" runat="server" onclick="BtnReset_Click" <br />
                    Text="Reset" CausesValidation="true" /><br />
            </td><br />
            <td><br />
                &nbsp;</td><br />
        </tr><br />
    </table>

vikas shukla wrote:

there was an error Page Not Found
please give anything else

vikas shukla wrote:

yes i think i am facing problem to open this url.
please send me the url .