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ContainsValue Method

StringDictionary.ContainsValue Method

Determines if the StringDictionary contains a specific value.

Namespace:  System.Collections.Specialized
Assembly:  System (in System.dll)

abstract ContainsValue : 
        value:string -> bool  
override ContainsValue : 
        value:string -> bool

Parameters

value
Type: System.String

The value to locate in the StringDictionary. The value can be a null reference (Nothing in Visual Basic).

Return Value

Type: System.Boolean
true if the StringDictionary contains an element with the specified value; otherwise, false.

The values of the elements of the StringDictionary are compared to the specified value using the Object.Equals method.

This method performs a linear search; therefore, the average execution time is proportional to Count. That is, this method is an O(n) operation, where n is Count.

Starting with the .NET Framework 2.0, this method uses the collection’s objects’ Equals and CompareTo methods on item to determine whether item exists. In the earlier versions of the .NET Framework, this determination was made by using the Equals and CompareTo methods of the item parameter on the objects in the collection.

The following code example searches for an element in a StringDictionary.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0
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