how to restrict a textbox to add another value

Question

0.00/5 (No votes)

See more:

SQL-Server-2005

, +

Hello All,
I have two tables one is class master and other is stream master.when i will create class it has options select class and select stream(like medical,non-medical,arts,commerce,no stream).I want that when a particular class select any stream and save that class But in next time if somebody wants to select another stream to same class ,it would not allow that class to add another stream.how it will be possible.

Thanks with Regards,
Amit Mehan

Posted 23-Jul-10 1:39am

amit2620

Add a Solution

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Viswa Teja · Answer 1 · 2010-07-23T02:17:00

First Save the setting using filestream reader and writer technique and save it in .txt file. Next time when u try to load it. In Form load if text file has a value(a student selected a stream for ex arts ) Then just make the textbox propery ENABLED=False(textBox1.Enabled=false)..

If you have any doubts give me the code i will write and explain you ok MAil me at viswa.teja@ymail.com,viswa.teja@live.in,viswa.teja1991@gmail.com:cool:

Viswa Teja · Answer 2 · 2010-07-23T03:46:00

Solution 2

Do one thing auto increment the class id so that no one gets same class id rite
Give the coulmn id class_Id int NOT NULL AUTO_INCREMENT in sql. so that you need not to disable textbox

Posted 23-Jul-10 3:46am

Viswa Teja

Updated 23-Jul-10 3:52am

v3

Comments

Sandeep Mewara 23-Jul-10 11:49am

Reason for my vote of 1
Why posting 3 answers? You could have edited the old one. Updated that itself.

Viswa Teja · Answer 3 · 2010-07-23T04:22:00

Solution 3

Or Do one thing cheak the class_id and if that class id already present in db. just disable the textbox.....

Posted 23-Jul-10 4:22am