What is the process for extracting the value from a TextBot when the submit button is clicked?

I'm in the process of developing a webpage that will be able to retrieve data from a QR Code. As I am relatively new to asp .Net, I am currently navigating through the challenge of extracting a value from a TextBox and passing it to SQL server. Is there a way to achieve this using JavaScript or any other programming language?

Below is the code snippet that I have been working on:

In my attempt to accomplish this task, I experimented with the following command: String text = email.Text.ToString();

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="SampleDB.aspx.vb" Inherits="SampleDB.SampleDB" %>

<!DOCTYPE html>
<html  lang="en">
[..]
    </body>
</html>

I wonder if employing an external class would help facilitate the process, or if it's feasible to carry out the operation within the aspx file itself.

javascriptc#asp.netvb.net

Answer №1

Initially, it appears that you are aiming to write code in C#, but the project is actually structured in VB (indicated by the header). Therefore, you may need to consider opening the project in ASP.NET C#.

Regarding your question, The logic within the aspx file should be contained in SampleDB.aspx.vb (as noted at the top of your file: CodeBehind="SampleDB.aspx.vb"). This means that when switching to C#, the file extension will change from .vb to .cs, representing a class written in C#.

Within SampleDB.aspx.vb, you can reference the TextBox using its ID. For example:

<asp:TextBox ID="EmailTextBox" runat="server" CssClass="cus-bot-section"></asp:TextBox>

To retrieve the text entered into the TextBox, use String text = EmailTextBox.Text;

In this class, you should also interact with your database. This is why it is referred to as CodeBehind - it is the code behind the view.

I suggest creating a new static class specifically for managing database connections. Then, whenever needed, you can call the appropriate function from the code behind.

I hope this guidance proves helpful :)

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