QuickOPC User's Guide and Reference
FilterMappings<TMapping> Method



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.LiveMapping.Extensions Namespace > AbstractMapperExtension Class : FilterMappings<TMapping> Method
The type of mapping. Only mapping of this type, or its subclasses, will be returned.
The mapper object that will perform the operation.
The object being targeted. null for any target.
The operation will be performed only on mappings whose mapping tags satisfy this predicate.
true to operate on sub-targets (mapped members of the target) recursively; false otherwise.
Filter the mappings available on the mapper by the given criteria.
Syntax
'Declaration
 
<ExtensionAttribute()>
<NotNullAttribute()>
Public Shared Function FilterMappings(Of TMapping As Class)( _
   ByVal mapper As AbstractMapper, _
   ByVal targetObject As Object, _
   ByVal mappingTagsPredicate As Predicate(Of IEnumerable(Of String)), _
   ByVal recurse As Boolean _
) As IEnumerable(Of TMapping)
'Usage
 
Dim mapper As AbstractMapper
Dim targetObject As Object
Dim mappingTagsPredicate As Predicate(Of IEnumerable(Of String))
Dim recurse As Boolean
Dim value As IEnumerable(Of TMapping)
 
value = AbstractMapperExtension.FilterMappings(Of TMapping)(mapper, targetObject, mappingTagsPredicate, recurse)
[Extension()]
[NotNull()]
public:
static IEnumerable<TMapping^>^ FilterMappingsgeneric<typename TMapping>
( 
   AbstractMapper^ mapper,
   Object^ targetObject,
   Predicate<IEnumerable<String^>^>^ mappingTagsPredicate,
   bool recurse
) 
where TMapping: ref class

Parameters

mapper
The mapper object that will perform the operation.
targetObject
The object being targeted. null for any target.
mappingTagsPredicate
The operation will be performed only on mappings whose mapping tags satisfy this predicate.
recurse
true to operate on sub-targets (mapped members of the target) recursively; false otherwise.

Type Parameters

TMapping
The type of mapping. Only mapping of this type, or its subclasses, will be returned.

Return Value

Returned an enumerable of mapping that are of given type, fulfill the specified predicate, and belong to the given target object (if specified).
Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

See Also