tags:

views:

52

answers:

2
+1  Q: 

LinqtoSql - FirstOrDefault - How do I test for default returned

I am using the FirstOrDefault<T>() method to return an object from a Linq2Sql query. I then set an object to be equal to the returned value.

how do I test if the default has been returned?

+3  A: 

If T is a non-primitive data type I believe the default value will be null.

jwarzech  2009-10-02 19:52:46
Thanks, that is what I originally thought, but I seemed to be getting a new object of the type being returned. Think I had some rogue data returning an object. You are absolutely right though thanks.
Richbits  2009-10-03 19:42:22
+2  A: 

using the comparison with default(T)

Gregoire  2009-10-02 19:58:01

related questions

What is the syntax for an inner join in linq to sql?
Best Practices for Managing Linq to SQL Dbml Files?
Best use pattern for a DataContext
Is there a pattern using Linq to dynamically create a filter?
Can you use LINQ tools such as SQLMetal with an access database?
How to Track Queries on a Linq-to-sql DataContext
Linq To SQL: Can I eager load only one field in a joined table?
What causes Visual Studio to fail to load an assembly incorrectly?
NHibernate vs LINQ to SQL
Linq 2 SQL on shared host
Attaching entities to data contexts
XRef Relationships in dbml
Linq to SQL - Underlying Column Length
Learning about LINQ
LINQ to SQL Mapping From Money to Double
LINQ-to-SQL vs stored procedures?
Has anyone had any success in unit testing SQL stored procedures?
Best .NET Solution for Frequently Changed Database
Conditional Linq Queries
Entity Framework vs LINQ to SQL
When should I use Compiled LINQ vs Normal LINQ
LINQ to SQL strings to enums
How much database performance overhead when using LINQ?
LinqDataSource - Can you limit the amount of records returned?
Are Multiple DataContext classes ever appropriate?