How to block the possibility to add the same record to a SPList?

Posted by truthseeker on Stack Overflow See other posts from Stack Overflow or by truthseeker
Published on 2010-05-12T23:13:22Z Indexed on 2010/05/12 23:54 UTC
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Filed under:

splist

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wss-3.0

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sharepoint

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.NET

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.net-3.5

Hi,

Is there a possibility to block chance to add the same data to SPList? I know that two records always are different regarding the ID field. I would like to validate other custom fields added previously by me, and don't allow of adding same field's value. Can anybody tell me how to implement this? I can guess that event receivers could be the answer but I couldn't find how to add a receiver to SPList. Can anybody tel me If I'm right and what is step by step procedure to add such event receiver? I would like to know how to build it and install it using Feature file.

Best Regards

T.S.

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