| IdeaBlade.EntityModel.Compat Assembly > IdeaBlade.EntityModel.Compat Namespace > EntityScalarQueryAsyncExtensions Class : FirstOrNullEntity Method |
| Overload | Description |
|---|---|
| FirstOrNullEntity(IEntityScalarQuery,Action<EntityScalarQueryOperation>,Object) | Returns the first element in the sequence, or the appropriate NullEntity if the sequence contains no elements. |
| FirstOrNullEntity<TSource>(IEntityScalarQuery<TSource>,Action<EntityScalarQueryOperation<TSource>>,Object) | Returns the first element in the sequence, or the appropriate NullEntity if the sequence contains no elements. |
| FirstOrNullEntity(IEntityScalarQuery,IPredicateDescription,Action<EntityScalarQueryOperation>,Object) | Returns the first element of a sequence that satisfies a specified condition, or the appropriate NullEntity if no such element is found. |
| FirstOrNullEntity<TSource>(IEntityScalarQuery<TSource>,Expression<Func<TSource,Boolean>>,Action<EntityScalarQueryOperation<TSource>>,Object) | Returns the first element of a sequence that satisfies a specified condition, or the appropriate NullEntity if no such element is found. |
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2