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Error reproducing project provided: Object reference not set to an instance of an object
I have an Object reference not set to an instance of an object in my Entity Framework project, using LINQ.I've been looking for several hours, but no solution was found :( I have reproduced the...
(1 reply / 0 Views)  Asked By Nico Sap in the LINQ forum on Tuesday, October 27, 2009 6:40:28 AM
LINQ Insert with Unique Identifier field -> automaticly created?
I am working with linq to insert a new record. Do i need to specify a new Unique Key to insert the object, it is identified as "uniqueidentifier" in my MS SQL Database. Or how do i do this? :) Int...
(2 replies / 0 Views)  Asked By Nico Sap in the LINQ forum on Tuesday, October 27, 2009 4:41:23 AM
Datatable OrderBy and Take question
Hello, I am sorting a datatable and binding it to  a Microsoft Chart as shown below Dim q =  (From c In dt.AsEnumerable  _          &nbs...
(2 replies / 0 Views)  Asked By Burak Gunay in the LINQ forum on Friday, October 16, 2009 3:57:17 PM
What is the advantage of LINQ over SQL Server?
Hi,   I just want to know what is the advantages of using LINQ over a SQL.I find all the equivalent commands in SQL rather which works fine.Why should i go for LINQ.Why microsoft brought LI...
(4 replies / 0 Views)  Asked By Kumar K M in the LINQ forum on Monday, October 05, 2009 2:56:14 AM
InvalidOperationException on SubmitChanges
I am receiving an InvalidOperationException when I am trying to Update a record in my database.  It states: A member defining the identity of the object cannot be changed.Consider adding a new...
(1 reply / 0 Views)  Asked By Walter Johnson in the LINQ forum on Tuesday, August 18, 2009 2:19:44 PM
Help with Aggregate error please
Hello, In my function below Protected Shared Function FormatExcludedUics(ByVal valsAs String) As String ' Put single quotes around comma separated uics and uppercase them. ' ex: w1, w2, w3 becom...
(1 reply / 0 Views)  Asked By Burak Gunay in the LINQ forum on Thursday, August 13, 2009 3:48:51 PM

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