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JsonObject.ICollection<KeyValuePair<String, JsonValue>>.Contains Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Checks whether the JsonObject contains a specified key/value pair.

Namespace:  System.Json
Assembly:  System.Json (in System.Json.dll)

Syntax

'Declaration
Private Function Contains ( _
    item As KeyValuePair(Of String, JsonValue) _
) As Boolean Implements ICollection(Of KeyValuePair(Of String, JsonValue)).Contains

bool ICollection<KeyValuePair<string, JsonValue>>.Contains(
    KeyValuePair<string, JsonValue> item
)

Parameters

Return Value

Type: System.Boolean
true if the item is contained in the instance of the JsonObject; otherwise, false.

Implements

ICollection<T>.Contains(T)

Exceptions

Exception Condition
ArgumentNullException

key is nulla null reference (Nothing in Visual Basic).

Version Information

Silverlight

Supported in: 5, 4, 3

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.