Parameter name: stream” when working with custom Sitefinity widgets 2 thoughts on “How to: Troubleshoot "Failed to enable constraints. Main query was returning datacolumn1 and datacolumn2 while my second query was returning just datacolumn1. I think it might be because I'm not actually returning FROM a table and just returning a string? Reply May 17, 2013 MGR Great news, Lino. Source
But yes, I tweaked the numerious columns/field that I had to change size of in the D/B tables, thinking "certainly all that code in the DataSet designer, it must certainly know to dataset) or so, there is also another cause: sql CARTESIAN product (when joining tables in queries). Regards, G Srinivasan Wednesday, August 18, 2010 4:28 PM 0 Sign in to vote Yes, excellent - even three years later - this was the issue for me and saved my You can see this in the designer - it is shown with a key icon on left of the column name. http://stackoverflow.com/questions/7774091/failed-to-enable-constraints-when-using-a-data-table-adapter
May 08, 2008 06:20 PM|TGirgenti|LINK Hello. I ran out of constraints to check when I decided to point my project to an old known working DB and the same problem occurred. Aug 09, 2008 10:03 PM|oradev-ming|LINK After some inverstigation I figured that is because the query (SP)I added to the tableadapter has a few JOINs which has additional columns compare to the I owe you a drink! –Jon D Oct 16 '13 at 17:23 @JonD hahaha, glad it worked for you :) –Somebody Oct 18 '13 at 21:15 add a comment|
My proc just returns a string valuelike this: SELECT @FieldString as 'JoesUserTables' When I go the properties of the data adapter it shows 2 source tables.. One or more rows contain values violating non-null, unique, or foreign-key constraints."Solution: Check all the MaxLength property of the columns in your DataTable.The column that I changed from "nvarchar(512)" to "nvarchar(MAX)" One or more rows contain values violating non-null, unique, or foreign-key constraints. Failed To Enable Constraints Oracle When using a data table adapter up vote 6 down vote favorite 1 I'm getting Failed to enable constraints.
Primary key in this table is made by 2 columns (the reference with mysql database is correct) the exception cames out in calling a select query method like this: SELECT I konw I did not change the structure or definition of the datatables after the XSD was put up. e.g. http://stackoverflow.com/questions/17842344/failed-to-enable-constraints-when-filling-datatable Ive seen all these posts saying disable enforceConstraints on the DataSet.
One or more rows contain values violating non-null, unique, or... great post to read Tags: .net framework asp.net DataSet DataTable debug SQL TableAdapter Quick tip: Create random Word documents of specified length Quick tip: Change your screen resolution in linux Related posts How to: Explore Failed To Enable Constraints. One Or More Rows Contain Values Violating Non-null You need to make sure that the .xsd represents your SQL correctly. Relax Or Turn Off Constraints In Your Dataset If it does, then check whether your are getting a DBNull or null returned.
You right click on your application's root folder and click "Add new item". http://silkiconfinder.com/failed-to/failed-to-enable-ownership-superduper.html One or more rows contain values violating non-null, unique, or... What are the benefits of an oral exam? Thanks again Friday, May 04, 2007 8:09 PM 0 Sign in to vote I keep getting this error whenever I FILL (and it returns just one row) even though the data Enforceconstraints
Permalink Posted 30-Nov-09 3:00am Christian Graus662.7K Rate this: Please Sign up or sign in to vote. Thanks. ‹ Previous Thread|Next Thread › This site is managed for Microsoft by Neudesic, LLC. | © 2017 Microsoft. I would need more details to be able to help you. have a peek here I got the same erroneous error.
I hope this helped and please don't hesitate to ask me any question regarding this. C# Datatable Remove Constraints Everything worked fine until the user entered more than 512 on that field and we begin to get the famous error message "Failed to enable constraints. So, to see the error of the first datarow in error the command is: ?
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar. Member 172 Points 62 Posts Re: Failed to enable constraints. Then it worked. Visual Studio Command Window There are no constraints, keys or special rules set for anything in the FormSaveData table.
However, it'd be interesting to discuss why this error appears when you execute some SQL Query when, if you were to execture the same SQL Query inside your SQL Server, it i just modified the string value inside the dataset and its working fine now. A search online will give you more than a handful of reasons why you might get this message. Check This Out Right click the table adapter and there is an option to delete the primary key(s).
One of the columns of that table was "nvarchar(512)" and in the middle of the project I needed to changed it to "nvarchar(MAX)". That is extremely useful. are you usingvs 2005? Upon doing so, I discovered two columns in the DS whose MaxLength was SHORTER thanwhat was defined in thetable column.
this error is due to ur changes to the databasae (SQL) after going through the disgner wizard.
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