URL encoding (or percent-encoding) is a mechanism to encode special characters in URLs that are not allowed in their raw form. This encoding is essential to ensure that URLs are transmitted correctly and that the server interprets them correctly. Special Characters: Characters like spaces, ampersands (&), question marks (?), and non-ASCII characters need to be encoded. Encoding Format: Special characters are replaced with a percent sign (%) followed by two hexadecimal digits representing their ASCII code. Example: A space is encoded as %20, and an ampersand is encoded as %26.
Content Types for Form Submission application/x-www-form-urlencoded: Purpose: The default encoding for HTML forms. It encodes form data as key-value pairs separated by ampersands (&) and with equal signs (=) between keys and values. Spaces are converted to plus signs (+). Usage: Suitable for simple forms with text data. Limitations: Not efficient for large amounts of data or binary data (like file uploads).
multipart/form-data: Purpose: Designed for submitting forms with files or large amounts of data. Each form field is sent as a separate part, with its own content type and headers. Usage: Essential for file uploads. Benefits: Handles binary data efficiently and can support larger payloads.
form-data: Purpose: A newer and more flexible format for form submissions that can handle both simple and complex data, including files. Usage: Offers a more modern alternative to multipart/form-data. Benefits: Similar to multipart/form-data but with a more streamlined structure.
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Model Classes in Asp.net Core