Hidden input, Computer Engineering

Assignment Help:

Yet another type of input is HIDDEN input.

<INPUT TYPE=HIDDEN NAME="FORMNAME" VALUE="Friend Form 1">

A HIDDEN input is a value/name pair which is returned to you but doesn't show up anywhere on web page. The hidden input above is required for use with mailto Formatter (MTF). It's how MTF recognizes the forms it has to parse.

Assume you were a company trying to generate leads for a new product and there is a standard form for gathering information which has name, company, products, phone interested in, etc. Only problem is there are 6 slightly different versions of form in 6 different places. You need to know what's coming from where. What to do?

You can add a HIDDEN input to your forms like below:

<HTML>

<BODY>

<FORM METHOD=POST>

<INPUT TYPE=HIDDEN NAME="FORMNAME" VALUE="Version 1"> ...for the first version

<INPUT TYPE=HIDDEN NAME="FORMNAME" VALUE="Version 2"> ...for the second version

<INPUT TYPE=HIDDEN NAME="FORMNAME" VALUE="Version 3"> ...for the third version

</FORM>

</HTML>

By the way, it doesn't matter what name/value pair in the hidden input is (or any input for that matter).

<INPUT TYPE=HIDDEN NAME="E" VALUE="Mc^2">HIDDEN

Inputs are also useful for cgi scripts. For instance, many ISP's have a script you can have your forms sent to. It then sends form back to you properly formatted. Hidden input can be used to tell cgi script who you are, where to send parsed data and so on.


Related Discussions:- Hidden input

Explain the meaning of listen socket primitive, Explain the meaning of L...

Explain the meaning of LISTEN socket primitive The listen Primitive: After identifying a protocol port a server should instruct the operating system to place a socket

Main benefits of cd-rom, The main benefits of CD-ROMs are: These are...

The main benefits of CD-ROMs are: These are removable disks, thus they are suitable for archival storage mass replication is cheap and fast large storage capacity

What is gimps native graphics file format, XCF is GIMP's "native" format. T...

XCF is GIMP's "native" format. This will preserve all information about an image, having the layers.

What are the types of calendars in a single interface, What are the types o...

What are the types of calendars in a single interface? Member Event calendar helps users manage their personal time, Kept track of meetings with others, and so on. Tea

Speed of memory versus speed of CPU, In the past there was a large gap betw...

In the past there was a large gap between speed of a memory andprocessor. So a subroutine execution for an instruction for illustration floating point addition may have to follow a

Define logical data as operand data type, Q. Define Logical data as operand...

Q. Define Logical data as operand data type? Every word or byte is treated like a single unit of data. Whenever an n-bit data unit is considered as comprising n 1-bit items of

Define synchronization latency problem, Q. Define Synchronization Latency P...

Q. Define Synchronization Latency Problem? If two simultaneous processes are executing remote loading then it's not recognized by what time two processes will load as issuing p

What are single stage and multistage networks, What are single stage and mu...

What are single stage and multistage networks? Compare the strengths and weaknesses of each. OR List the major difference in single stage, two stages and three stage Netw

Clustering-coefficient- artificial intelligence, This programming assignmen...

This programming assignment is about computing topological properties of Protein-Protein Interaction (PPI) networks. Recall that a PPI network is represented by a graph G=(V,E) whe

What are the languages evolved in the html open standard, What are the lang...

What are the languages evolved in the html open standard Even the companies or developers themselves have been affected with such modifications to the open standards since they

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd