The Request.QueryString and Request.Form commands are used to retrieve user input from forms.
The Request object can be used to retrieve user information from forms.
User input can be retrieved with the Request.QueryString or Request.Form command.
The Request.QueryString command is used to collect values in a form with
Information sent from a form with the GET method is visible to everyone (it will be displayed in
the browser's address bar) and has limits on the amount of information to send.
If a user typed "Bill" and "Gates" in the HTML form above, the URL sent to
the server would look like this:
Assume that "aspform.html" contains the following ASP script:
The browser will display the following in the body of the document:
The Request.Form command is used to collect values in a form with method="post".
Information sent from a form with the POST method is invisible to others and has no limits on the
amount of information to send.
User input should be validated on the browser whenever possible (by client scripts). Browser
validation is faster and reduces the server load.
You should consider server validation if the user input will be inserted into a database. A good
way to validate a form on the server is to post the form to itself, instead of jumping to a
different page. The user will then get the error messages on the same page as the form. This
makes it easier to discover the error.
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