Technical Corner: The entry ConnectionString has already been added.

Tuesday, March 24, 2009

put <clear/> before <add , like following:

connectionStrings>

clear />

add name="ConnectionString" connectionString="Data Source=SERVERNAME;Initial Catalog=DATABASE;User ID=USER" providerName="System.Data.SqlClient"/>

Unknown said...: thanks. that really helped. never saw this error before and was wondering how to fix it. thanks for your help.; July 20, 2009 at 8:19 AM
Niraj Pandey said...: thank's.....to help it' very useful.; October 8, 2010 at 10:05 PM
Niraj Pandey said...: again thank's........!!!!!; November 19, 2010 at 12:39 AM
Niraj Pandey said...: again thank's........!!!!!; November 19, 2010 at 12:42 AM
sandeep said...: Thanks a lot...; January 21, 2011 at 11:27 PM
Dilip Nikam said...: Thanks... My Problem is Resolved; March 8, 2011 at 8:19 PM
Hiren said...: thanks you so much; March 28, 2011 at 1:17 AM
Akhilesh Yadav said...: its great solution,since one year i never saw this error and this is solved in first attempt .using your code; April 21, 2011 at 2:07 AM
Anonymous said...: Thanks yar it works.
Really big thanks!!!!1; May 4, 2011 at 10:54 PM
The IT Enthusiast said...: U r xllent, u saved my time :); June 6, 2011 at 6:21 AM
kaisernayan said...: OH! Thanks a lot. Really helps me a lot.; November 29, 2011 at 11:02 PM
Unknown said...: thank you for the help!!; September 13, 2012 at 10:57 PM
Unknown said...: I had written before add but next time another connection string enters in text box same error exist. Could you help me pls; July 3, 2017 at 12:12 AM
Unknown said...: Its urgent; July 3, 2017 at 12:13 AM