DevForce Community Forum : Unable to evaluate XPath: '' or Attribute: 'MaxLength' http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce 2009 : Unable to evaluate XPath: '' or Attribute: 'MaxLength' Sat, 27 Jun 2026 06:37:14 -700 Tue, 19 Aug 2008 22:08:09 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=848 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ Unable to evaluate XPath: '' or Attribute: 'MaxLength' : Either you use the workaround... http://www.ideablade.com/forum/forum_posts.asp?TID=848&PID=3319#3319 Author: sebma
Subject: 848
Posted: 19-Aug-2008 at 10:08pm

Either you use the workaround from davidkitzke above, or you have to specify the max length for string columns in database then re-generate your edmx. Either way, it is now a hassle if you are updating data definition.]]> Tue, 19 Aug 2008 22:08:09 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=848&PID=3319#3319 Unable to evaluate XPath: '' or Attribute: 'MaxLength' : The root cause of the problem... http://www.ideablade.com/forum/forum_posts.asp?TID=848&PID=3150#3150 Author: davidklitzke
Subject: 848
Posted: 27-Jun-2008 at 11:47am

The root cause of the problem is that the Object Mapper expects a “MaxLength” attribute on each property of Type=”String” in the CSDL section of the edmx file.  We have worked around the problem by adding “MaxLength=”Max” to all “String” properties in the CSDL section of the file that did not adhere to this rule.  This workaroround will be replaced by a real fix in the next maintenance release of the product. If the  “MaxLength” attribute does not exist. We will create an attribute for it.

 

]]> Fri, 27 Jun 2008 11:47:25 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=848&PID=3150#3150 Unable to evaluate XPath: '' or Attribute: 'MaxLength' : Sent in email on Friday. http://www.ideablade.com/forum/forum_posts.asp?TID=848&PID=3107#3107 Author: smiller
Subject: 848
Posted: 22-Jun-2008 at 8:14pm

Sent in email on Friday.]]> Sun, 22 Jun 2008 20:14:33 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=848&PID=3107#3107 Unable to evaluate XPath: '' or Attribute: 'MaxLength' : Can you post your edmx file? --... http://www.ideablade.com/forum/forum_posts.asp?TID=848&PID=3105#3105 Author: kimj
Subject: 848
Posted: 20-Jun-2008 at 9:55am

Can you post your edmx file? -- or if too large, send it to support@ideablade.com.
 
Thanks.
]]> Fri, 20 Jun 2008 09:55:52 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=848&PID=3105#3105 Unable to evaluate XPath: '' or Attribute: 'MaxLength' : Gettingan error with DEF RC1 when... http://www.ideablade.com/forum/forum_posts.asp?TID=848&PID=3101#3101 Author: smiller
Subject: 848
Posted: 19-Jun-2008 at 2:33pm

Getting an error with DEF RC1 when trying to Save the Domain Model from inside the DevForce EF Object Mapper that says:

Failed to save model file:
'C:\myfile.ibedmx'.

Eval error: Unable to evaluate either XPath: '' or Attribute: 'MaxLength'

Thinking maybe my ADO.NET Entity Data Model was corrupted I blew that project away completely and slowly started from scratch, this time adding only a single table to the model.  Saved my Model.edmx file, opened DevForce EF Object Mapper, clicked the Save button with success.

Went back to the Model.edmx file in the designer, added another table, saved the Model.edmx file, opened DevForce EF Object Mapper, clicked the Save button and saw the same error message outlined above.
]]> Thu, 19 Jun 2008 14:33:59 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=848&PID=3101#3101