cant delete

I cant delete some rows from my sql 2008 express DB from sql server MS .

I get a cant delete due to truncate data error? I have no idea why this i happening as I can delete some rows and not others. I just right click on a row and click delete. I set the table up with defaults with data types like int and text, varchar...

I have admin rights to the DB remotely hosted

I have a table with 6 fields  wth a PK.

jagguyAsked:
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
can you please show the exact error?
do you have any triggers on the table?
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mayank_joshiCommented:
can you plz generate the create table script and show us?
0
RGBDartCommented:
May be there are foreign keys in other tables, that reference rows in your table?
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jagguyAuthor Commented:
I dont have triggers, or foreign keys set , i am using Management system not scripts,

Even when i try to read the data I get

Error source:system data
Error message :invalid attempt to call read when reader is closed

the data is then listed and i have problem deleting data with the mouse right click. error
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
do you have any instance-level triggers?

the error cannot come from a DELETE, only from UPDATE or INSERT
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jagguyAuthor Commented:
the error came from a delete and i dont know what a instance-level trigger is .

I just right click and delete the current row
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
instance triggers (or DDL triggers) can catch any operations:
http://www.developer.com/db/article.php/3552096/Using-DDL-Triggers-to-Manage-SQL-Server-2005.htm
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Microsoft SQL Server 2008

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