Validating entered user data

Posted by msfanboy on Stack Overflow See other posts from Stack Overflow or by msfanboy
Published on 2010-05-28T12:01:23Z Indexed on 2010/05/28 12:01 UTC
Read the original article Hit count: 158

Filed under:

data

|

user-input

|

validate

Hello,

this is a general question but I do a desktop application.

Should I check for example the firstname exceeding 50 chars or is this a matter of taste?

Or should I check for > 50 chars because the user could flood my database with 10000000 chars ?

© Stack Overflow or respective owner

Related posts about data

timetable in a jTable

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to create a timetable in a jTable. For the top row it will display from monday to sunday and the left colume will display the time of the day with 2h interval e.g 1st colume (0000 - 0200), 2nd colume (0200 - 0400) .... And if i click a button the timing will change from 2h interval to 1h interval… >>> More
Reading data from an Entity Framework data model through a WCF Data Service

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
This is going to be the fourth post of a series of posts regarding ASP.Net and the Entity Framework and how we can use Entity Framework to access our datastore. You can find the first one here , the second one here and the third one here . I have a post regarding ASP.Net and EntityDataSource. You… >>> More
SQL SERVER – Advanced Data Quality Services with Melissa Data – Azure Data Market

as seen on SQL Authority - Search for 'SQL Authority'
There has been much fanfare over the new SQL Server 2012, and especially around its new companion product Data Quality Services (DQS). Among the many new features is the addition of this integrated knowledge-driven product that enables data stewards everywhere to profile, match, and cleanse data.… >>> More
Modifying a HTML page to fix several "bugs" add a function to next/previous on a option dropdown

as seen on Stack Overflow - Search for 'Stack Overflow'
SOF, I've got a few problems plaguing me at the moment and am wondering if anyone could assist me with them. I'm trying to get Next Class | Previous Class to act as buttons so that when Next Class is clicked it will go to the next item in the dropdown list and for previous it would go to back one… >>> More
Shrinking TCP Window Size to 0 on Cisco ASA

as seen on Server Fault - Search for 'Server Fault'
Having an issue with any large file transfer that crosses our Cisco ASA unit come to an eventual pause. Setup Test1: Server A, FileZilla Client <- 1GBPS - Cisco ASA <- 1 GBPS - Server B, FileZilla Server TCP Window size on large transfers will drop to 0 after around 30 seconds of a large… >>> More

Related posts about user-input

Call methods in main method

as seen on Stack Overflow - Search for 'Stack Overflow'
this is my main method that gets 3 integers from command line and I parse then in my validating method. However I have one operation method that calls 3 other methods, but i don't know what type of data and howmany I have to put in my operatinMethod() " cuase switch only gets one); AND also in my… >>> More
QTableWidget signal cellChanged(): distinguish between user input and change by routines

as seen on Stack Overflow - Search for 'Stack Overflow'
i am using PyQt but my question is a general Qt one: I have a QTableWidget that is set up by the function updateTable. It writes the data from DATASET to the table when it is called. Unfortunately this causes my QTableWidget to emit the signal cellChanged() for every cell. The signal cellChanged()… >>> More
Printing Stdout In Command Line App Without Overwriting Pending User Input

as seen on Stack Overflow - Search for 'Stack Overflow'
In a basic Unix-shell app, how would you print to stdout without disturbing any pending user input. e.g. Below is a simple Python app that echos user input. A thread running in the background prints a counter every 1 second. import threading, time class MyThread( threading.Thread ): running… >>> More
Script stops while waiting for user input from STDIN.gets

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to do something like this, where I have two loops going in seperate threads. The problem I am having is that in the main thread, when I use gets and the script is waiting for user input, the other thread is stopped to wait as well. class Server def initialize() @server = TCPServer… >>> More
QTableWidget signal cellChanged(): distinguish between user input and chage by routines

as seen on Stack Overflow - Search for 'Stack Overflow'
i am using PyQt but my question is a general Qt one: I have a QTableWidget that is set up by the function updateTable. It writes the data from DATASET to the table when it is called. Unfortunately this causes my QTableWidget to emit the signal cellChanged() for every cell. The signal cellChanged()… >>> More