Attribute in Visual Studio .NET

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fname ffilename fvalue ffile ftype ftype_options fdisposition fdisposition_options fheaders
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The field name, if specified Client-side filename used in uploads Value as a string File-like object from which data can be read Content type Dictionary of options specified on the content-type line of the HTTP request The 'content-disposition' field; None if not specified Dictionary of disposition options A dictionary-like object containing all the HTTP header contents
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Values from a form can be extracted using the following methods:
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formgetvalue(fieldname [, default])
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Returns the value of a given field with the name fieldname If a field is defined twice, this function will return a list of all values defined If default is supplied, it specifies the value to return if the field is not present One caution with this method is that if the same form field name is included twice in the request, the returned value will be a list containing both valuesTo simplify programming, you can use formgetfirst(), which simply returns the first value found
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formgetfirst(fieldname [, default])
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Returns the first value defined for a field with the name fieldname If default is supplied, it specifies the value to return if the field is not present
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formgetlist(fieldname)
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Returns a list of all values defined for fieldname It always returns a list, even if only one value is defined, and returns an empty list if no values exist In addition, the cgi module defines a class, MiniFieldStorage, that contains only the attribute s name and valueThis class is used to represent individual fields of a form passed in the query string, whereas FieldStorage is used to contain multiple fields and multipart data
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Instances of FieldStorage are accessed like a Python dictionary, where the keys are the field names on the formWhen accessed in this manner, the objects returned are themselves an instance of FieldStorage for multipart data (content type is 'multipart/form-data') or file uploads, an instance of MiniFieldStorage for simple fields (content type is 'application/x-www-form-urlencoded'), or a list of such instances in cases where a form contains multiple fields with the same name For example:
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form = cgiFieldStorage() if "name" not in form: error("Name is missing") return name = form['name']value email = form['email']value
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# Get 'name' field from a form # Get 'email' field from a form
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If a field represents an uploaded file, accessing the value attribute reads the entire file into memory as a byte string Because this may consume a large amount of memory on the server, it may be preferable to read uploaded data in smaller pieces by reading from the file attribute directly For instance, the following example reads uploaded data line by line:
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fileitem = form['userfile'] if fileitemfile: # It's an uploaded file; count lines linecount = 0 while True: line = fileitemfilereadline() if not line: break linecount = linecount + 1
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The following utility functions are often used in CGI scripts:
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escape(s [, quote])
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Converts the characters '&', '<', and '>' in string s to HTML-safe sequences such as '&', '<', and '>' If the optional flag quote is true, the double-quote character (") is also translated to '"'
parse_header(string)
Parses the data supplied after an HTTP header field such as 'content-type'The data is split into a primary value and a dictionary of secondary parameters that are returned in a tuple For example, the command
parse_header('text/html; a=hello; b="world"')
returns this result:
('text/html', {'a':'hello', 'b':'world'}) parse_multipart(fp, pdict) parse_multipart(fp,pdict)
Parses input of type 'multipart/form-data' as is commonly used with file uploads fp is the input file, and pdict is a dictionary containing parameters of the content-type header It returns a dictionary mapping field names to lists of valuesThis function doesn t work with nested multipart dataThe FieldStorage class should be used instead
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print_directory()
Formats the name of the current working directory in HTML and prints it outThe resulting output will be sent back to the browser, which can be useful for debugging
print_environ()