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UpdateDefinitionExtensionsUnsetTDocument Method (UpdateDefinitionTDocument, ExpressionFuncTDocument, Object)
Combines an existing update with an unset operator.

Namespace: MongoDB.Driver
Assembly: MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.4.1
Syntax
public static UpdateDefinition<TDocument> Unset<TDocument>(
	this UpdateDefinition<TDocument> update,
	Expression<Func<TDocument, Object>> field
)

Parameters

update
Type: MongoDB.DriverUpdateDefinitionTDocument
The update.
field
Type: System.Linq.ExpressionsExpressionFuncTDocument, Object
The field.

Type Parameters

TDocument
The type of the document.

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