So... I have 3 textboxes and a Submit button. Here's the code behind:

public void Submit1_onClick(object sender, EventArgs e)
    {
        SqlConnection conn = new SqlConnection();
        DateTime laiks = new DateTime();
        conn.ConnectionString = "data source=.;initial catalog=ForumDataBase;integrated security=true;";
        SqlCommand cmd = new SqlCommand();
        cmd.CommandText = "INSERT INTO PostTable(ThreadTitle,PostMessage,UserName) values('" & ThreadTextbox.Value & "','" & PostTextbox.Value & "','" & UserNameTextBox.Value & "')";
        cmd.Connection = conn;
        conn.Open();
        cmd.ExecuteNonQuery();
        conn.Close();
    }

I don't quite understand SQL syntax used in ASP.NET or wherever so I don't know how to write it properly, but the main problem is that I'm getting this error:
Error 1 The name 'ThreadTextbox' does not exist in the current context
(For all textboxes)
The id's and titles are OK for all textboxes...
So can you tell me what's the problem?


I guess it's because the posts.aspx is not connected with posts.aspx.cs file or something like that, but I've no ideas how to fix it...

Hi guys,

I tried the code and I fix it according to DB, But I still have a problem in it..

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CompanyInfo.aspx.cs" Inherits="CompanyInfo" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    
<html runat="server" xmlns="http://www.w3.org/1999/xhtml" >



<head runat="server">
    <title>Untitled Page</title>
</head>



<body>

    <form id="form1" runat="server">
    <div>
        <span style="font-size: 36pt"><strong><span style="text-decoration: underline">Comany
            registration</span></strong><br />
        </span>
        <br />
       First Name:
        <asp:TextBox ID="NameTextBox" runat="server"></asp:TextBox>
        
        <asp:Button ID="SubmitButton" runat="server" Text="Submit" />

    
    </div>
       
        
        
    </form>
</body>
</html>

and this is the code behind it

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.Data.SqlClient;

public partial class CompanyInfo : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void TextBox1_TextChanged(object sender, EventArgs e)
    {

    }
    protected void submitButton_Click(object sender, EventArgs e)
    {

        SqlConnection conn = new SqlConnection();
        DateTime laiks = new DateTime();
        conn.ConnectionString = "data source=.\\SQLEXPRESS;initial catalog=CV;integrated security=true;";
        SqlCommand cmd = new SqlCommand();
        cmd.CommandText = "INSERT INTO Test(Firstname) values ('" & NameTextBox.Value & "')";
        cmd.Connection = conn;
        conn.Open();
        cmd.ExecuteNonQuery();
        conn.Close();
    }
    
  
    
}

I have the error in "Value" which is attached with "NameTextBox".
I have a database which is called "Test" and table with "Test" naming.
The colume name is "Firstname" with varchar(50) type
thanks in advance

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