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NameValueCollection.GetKey Method

Gets the key at the specified index of the NameValueCollection.

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

public virtual string GetKey(
	int index
)

Parameters

index
Type: System.Int32

The zero-based index of the key to get from the collection.

Return Value

Type: System.String
A String that contains the key at the specified index of the NameValueCollection, if found; otherwise, null.

ExceptionCondition
ArgumentOutOfRangeException

index is outside the valid range of indexes for the collection.

This method is an O(1) operation.

.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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