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ASP Forms

Forms in ASP are used to collect user inputs and send them to the server for processing. ASP allows handling form submissions using the Request object to retrieve data sent through form fields.

Key Topics

Simple Form Handling

Example

<!-- Simple Form Example -->
<html>
<body>
<form method="post" action="form_handler.asp">
    <label for="name">Name:</label>
    <input type="text" id="name" name="name"><br><br>
    <label for="email">Email:</label>
    <input type="email" id="email" name="email"><br><br>
    <button type="submit">Submit</button>
</form>

<!-- ASP Code to Handle the Form -->
<%
    If Request.Form("name") <> "" Then
        Response.Write("Name: " & Request.Form("name") & "<br>")
        Response.Write("Email: " & Request.Form("email") & "<br>")
    End If
%>
</body>
</html>

Explanation: This example demonstrates a simple form with fields for name and email. The submitted data is retrieved using the Request.Form object and displayed on the same page.

Using POST Method

Example

<!-- POST Method Example -->
<html>
<body>
<form method="post" action="process_form.asp">
    <label for="username">Username:</label>
    <input type="text" id="username" name="username"><br><br>
    <button type="submit">Login</button>
</form>

<!-- ASP Code to Handle the POST Request -->
<%
    If Request.Form("username") <> "" Then
        Response.Write("Welcome, " & Request.Form("username") & "!")
    End If
%>
</body>
</html>

Explanation: This example demonstrates using the POST method to securely send user input (username) to the server for processing. The data is retrieved using the Request.Form object.

Using GET Method

Example

<!-- GET Method Example -->
<html>
<body>
<form method="get" action="process_form.asp">
    <label for="query">Search:</label>
    <input type="text" id="query" name="query"><br><br>
    <button type="submit">Search</button>
</form>

<!-- ASP Code to Handle the GET Request -->
<%
    If Request.QueryString("query") <> "" Then
        Response.Write("You searched for: " & Request.QueryString("query"))
    End If
%>
</body>
</html>

Explanation: This example demonstrates using the GET method to pass search queries through the URL. The data is retrieved using the Request.QueryString object.

Key Takeaways

  • Use POST for secure data submission and GET for passing data via URL.
  • ASP's Request.Form and Request.QueryString objects retrieve form data efficiently.
  • Form handling is essential for creating interactive and user-friendly web applications.
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