re-arranging the datatable

Question

0.00/5 (No votes)

See more:

hello,
i have a problem..
i am creating c#.net windows based project using visual studio 2008 and ms sql server.
i want to rearrange my datatable after deletion.
i am explaining it...
(1) i have a table of Statecode,statename,year.
if i delete 1 state from all states,then statecode should be re-arrange.
as if statecode 1,2,3,4,5.and i delete 4th row then it becomes 1,2,3,5.
i want it to be 1,2,3,4.means 4 records starting from 1.

(2) if i will not take statecode as a primary key,then what is the
solution for this problem.

please reply.

Posted 20-Jun-10 22:41pm

khandelwal g

Add a Solution

1 solution

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)

Sandeep Mewara · Answer 1 · 2010-06-21T01:56:00

khandelwal g wrote:
i want it to be 1,2,3,4.means 4 records starting from 1

Why do you want to do that? What's the need? It's not advisable. Generally applications does not work on single table. There are dependencies and foreign key relations. If you change a dependant column value in main table then you need to take care of other tables too.

There is no point in re-assigning the values. They are in DB and your application knows how to handle it.

Infact, primary keys most of the times are made an Identity Key to avoid any issue.

khandelwal g wrote:
if i will not take statecode as a primary key,then what is the
solution for this problem.

I don't find any problem out here? What's troubling you? Rearrangement is not going to help you, so why to do it!