Insert List in to a table

Question

0.00/5 (No votes)

See more:

I have list of item objects in List<Items> itemList. Now I wan't to insert this in to the item table. One technique i did was, I delete all the existing items in the table and then insert the list. This get very slow. How can I save only the updated items in to the table.

Posted 26-Mar-11 16:21pm

sam_di

Add a Solution

Comments

Dave Kreskowiak 26-Mar-11 22:40pm

You're going to have to show some code. If you've got a performance problem, it's impossible to diagnose with just a vague description like you've provided.

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)

JOAT-MON · Answer 1 · 2011-03-26T17:05:00

There are many ways depending on your configurations, but based on what is described here, I would recommend that you add an IsDirty field to your items. Set the field to true when anything on the item changes. Then when you loop through the list you can check to see if the field is true and only update those items. This method requires that each item has an identifying field, a unique value for that item (typically an int or Guid). You would use this identifier to locate the row in the table for that item, and then update the information in that row.