Duplication in SharePoint

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• 2008年10月3日 14:32Michael Nemtsev [MVP]MVP

   
  

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  Could you explain in more details what are you doing and what's wrong?!

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• 2008年10月5日 10:09Jamil Haddadin

   
  

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  sharepoint doesnt take care of duplications out of the box, you can easily do it by object model where you can cancel all the new / Editted items that contains a title used in on of the old items.
  
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• 2008年10月6日 2:20burlo

   
  

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  Write an list item event handler (http://www.wrox.com/WileyCDA/Section/Programming-Event-Handling-in-Windows-SharePoint-Services.id-306329.html) that overrides the ItemAdding method. In this method you want to check if the title exists (i.e use a CAML query not a foreach loop, its more efficient) if it does not exist then add it, other wise cancel the action and display a message to the user.
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• 2008年10月7日 7:07Jamil Haddadin

   
  

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   There is a tool on http://www.codeplex.com/features/Release/ProjectReleases.aspx?ReleaseId=2502  called "Uniuq Column policy Feature", download it  (*.wsp file) then install it on your server using the following command:
  
  
  C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\BIN>stsadm -o addsolution -filename "C:\Documents and Settings\Administrator\Desktop\UniqueColumnPolicy.wsp"
  
  then go to Central Administration>Operations> Solution management, you will find a solution called uniquecolumnpolicy.wsp, go and deploy it.
  
  Then go to your document library or list> Settings> docuemnt library settings>Information management policy settings > Select Define a Policy, you will find "Unique Column Policy" then check the "Unique Column Policy" box  next to it, then you will have the list of columns in your document library, select the column you want to apply a unique constrains on.
  
  
  Cheers
   

  • 已标记为答案Manoj Kumar P 2008年10月7日 11:22
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• 2008年10月7日 9:12Manoj Kumar P

   
  

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  Thank you Jamil
  
  I am going to try this tool.
  

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• 2008年10月7日 11:24Manoj Kumar P

   
  

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  Thank you Jamil,
  
  That Solution Works for Me
  
  How ever it is For Single Column Constrains
  
  Is there any option for Multiple columns constraints
  
  Thanks in advance
  
  Manojkumar P
  
  

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• 2009年6月15日 14:04ptrive

   
  

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   There is a tool on http://www.codeplex.com/features/Release/ProjectReleases.aspx?ReleaseId=2502  called "Uniuq Column policy Feature", download it  (*.wsp file) then install it on your server using the following command:
  
  
  C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\BIN>stsadm -o addsolution -filename "C:\Documents and Settings\Administrator\Desktop\UniqueColumnPolicy.wsp"
  
  then go to Central Administration>Operations> Solution management, you will find a solution called uniquecolumnpolicy.wsp, go and deploy it.
  
  Then go to your document library or list> Settings> docuemnt library settings>Information management policy settings > Select Define a Policy, you will find "Unique Column Policy" then check the "Unique Column Policy" box  next to it, then you will have the list of columns in your document library, select the column you want to apply a unique constrains on.
  
  
  Cheers
   

  
  Thank you Jamil,
  
  Is there any option available to avoid duplicate entried in column (multilines)?
  Do we need to srite any event handler for work breaker or something like that ?
  
  Regards
  Pramod
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