CollectionExtensionsToDictionaryTKey, TValue Method (IEnumerableKeyValuePairTKey, TValue, IEqualityComparerTKey)

Creates a Dictionary{TKey, TValue} from an IEnumerable{KeyValuePair{TKey, TValue}}.

Namespace: TomsToolbox.Essentials
Assembly: TomsToolbox.Essentials (in TomsToolbox.Essentials.dll)

Syntax

public static Dictionary<TKey, TValue> ToDictionary<TKey, TValue>(
	this IEnumerable<KeyValuePair<TKey, TValue>> items,
	IEqualityComparer<TKey>? comparer
)

<ExtensionAttribute>
Public Shared Function ToDictionary(Of TKey, TValue) ( 
	items As IEnumerable(Of KeyValuePair(Of TKey, TValue)),
	comparer As IEqualityComparer(Of TKey)
) As Dictionary(Of TKey, TValue)

Parameters

items: Type: System.Collections.GenericIEnumerableKeyValuePairTKey, TValue
The items containing the key-value pairs.
comparer: Type: System.Collections.GenericIEqualityComparerTKey
The comparer.

Type Parameters

TKey: The type of the key.
TValue: The type of the value.

Return Value

Type: DictionaryTKey, TValue
The dictionary

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerableKeyValuePairTKey, TValue. 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).

Exceptions

Exception	Condition
ArgumentNullException	Any of the keys is null.
ArgumentException	Any of the keys is duplicate.

Reference

CollectionExtensions Class

ToDictionary Overload

TomsToolbox.Essentials Namespace