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WebPages Forms

Forms are essential in web applications for collecting user input. ASP.NET WebPages makes it easy to create and handle forms using Razor syntax and server-side processing.

Key Topics

Creating Forms

Example

<form method="post" action="/SubmitForm">
    <label for="name">Name:</label>
    <input type="text" id="name" name="name" />

    <label for="email">Email:</label>
    <input type="email" id="email" name="email" />

    <button type="submit">Submit</button>
</form>

Explanation: This example demonstrates a basic HTML form with input fields for name and email. The method="post" attribute specifies that the data will be sent to the server using the POST method.

Additional Example

@{
    if (IsPost)
    {
        var name = Request["name"];
        var email = Request["email"];
    }
}

<h2>Submit Your Details</h2>
<form method="post">
    <input type="text" name="name" placeholder="Your Name" />
    <input type="email" name="email" placeholder="Your Email" />
    <button type="submit">Send</button>
</form>

Explanation: This example uses Razor to handle form submission. The Request object retrieves the form data on the server side.

Form Validation

Example

@{
    if (IsPost)
    {
        var name = Request["name"];
        var email = Request["email"];

        if (string.IsNullOrEmpty(name) || string.IsNullOrEmpty(email))
        {
            Response.Write("Please fill all fields.");
        }
    }
}

<form method="post">
    <input type="text" name="name" placeholder="Name" />
    <input type="email" name="email" placeholder="Email" />
    <button type="submit">Submit</button>
</form>

Explanation: This example includes simple validation logic that checks if the name or email fields are empty and displays a message if they are.

Key Takeaways

  • Forms are used to collect user input and send it to the server for processing.
  • ASP.NET WebPages provides easy handling of form data through Razor syntax.
  • Validation can be implemented to ensure that user input is complete and valid.
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