ASP - User Input Data Validation

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User Input Data Validation

Should user input data validation occur server-side or client-side? Why?

Total Answers and Comments: 3

Last Update: November 09, 2009 Asked by: motionbreaker

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Submitted by: Paul Brennan

Validation should be done BOTH on the client and on the server. This even includes validation that has already been done on the client, due to the risk of spoofing.

The only reason validation is first done on the client is to reduce the number of round trips between the client and the server.

Above answer was rated as good by the following members:
vmukkavi

October 19, 2008 13:56:44

ptharak

Member Since: October 2008 Contribution: 6

RE: User Input Data Validation

User input validation is Client side only because there is no need to Validate Serverside.
If get the values from DB then you need to validate Serverside

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December 27, 2008 07:15:43

Paul Brennan

Member Since: December 2008 Contribution: 2

RE: User Input Data Validation

Validation should be done BOTH on the client and on the server. This even includes validation that has already been done on the client due to the risk of spoofing.

The only reason validation is first done on the client is to reduce the number of round trips between the client and the server.

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1 0

Overall Rating: +1

November 08, 2009 11:39:57

santodip

Member Since: December 2006 Contribution: 2

RE: User Input Data Validation

First step validation should be done at client-side using JavaScript.

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