| UpdateDefinitionExtensionsAddToSetTDocument, TItem Method (UpdateDefinitionTDocument, ExpressionFuncTDocument, IEnumerableTItem, TItem) | 
 
            Combines an existing update with an add to set operator.
            
 
    Namespace: 
   MongoDB.Driver
    Assembly:
   MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.12.2+a4a3888f4fb51bb518b1eb5002effc2d47f2ea6a
 Syntax
Syntaxpublic static UpdateDefinition<TDocument> AddToSet<TDocument, TItem>(
	this UpdateDefinition<TDocument> update,
	Expression<Func<TDocument, IEnumerable<TItem>>> field,
	TItem value
)
<ExtensionAttribute>
Public Shared Function AddToSet(Of TDocument, TItem) ( 
	update As UpdateDefinition(Of TDocument),
	field As Expression(Of Func(Of TDocument, IEnumerable(Of TItem))),
	value As TItem
) As UpdateDefinition(Of TDocument)
[<ExtensionAttribute>]
static member AddToSet : 
        update : UpdateDefinition<'TDocument> * 
        field : Expression<Func<'TDocument, IEnumerable<'TItem>>> * 
        value : 'TItem -> UpdateDefinition<'TDocument> 
Parameters
- update
- Type: MongoDB.DriverUpdateDefinitionTDocument
 The update.
- field
- Type: System.Linq.ExpressionsExpressionFuncTDocument, IEnumerableTItem
 The field.
- value
- Type: TItem
 The value.
Type Parameters
- TDocument
- The type of the document.
- TItem
- The type of the item.
Return Value
Type: 
UpdateDefinitionTDocument
            A combined update.
            
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type 
UpdateDefinitionTDocument. When you use instance method syntax to call this method, omit the first parameter. For more information, see 
Extension Methods (Visual Basic) or 
Extension Methods (C# Programming Guide).
 See Also
See Also