Syntax
| Visual Basic (Declaration) | |
|---|---|
<ExtensionAttribute()> Public Overloads Shared Function DefaultIfEmpty(Of TSource)( _ ByVal source As IEntityQuery(Of TSource), _ ByVal defaultValue As TSource _ ) As IEntityQuery(Of TSource) | |
| Visual Basic (Usage) |  Copy Code |
|---|---|
Dim source As IEntityQuery(Of TSource) Dim defaultValue As TSource Dim value As IEntityQuery(Of TSource) value = EntityQueryExtensions.DefaultIfEmpty(Of TSource)(source, defaultValue) | |
| C# | |
|---|---|
[ExtensionAttribute()] public static IEntityQuery<TSource> DefaultIfEmpty<TSource>( IEntityQuery<TSource> source, TSource defaultValue ) | |
| C++/CLI | |
|---|---|
[ExtensionAttribute()] public: static IEntityQuery<TSource^>^ DefaultIfEmptygeneric<typename TSource> ( IEntityQuery<TSource^>^ source, TSource^ defaultValue ) | |
Parameters
- source
- defaultValue
Type Parameters
- TSource
Requirements
Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family