Cadenza : Cadenza.Collections Namespace

KeyValuePairCoda Class

Extension methods for KeyValuePair<TKey, TValue>.

public static class KeyValuePairCoda

Remarks

Requirements

Namespace: Cadenza.Collections
Assembly: Cadenza (in Cadenza.dll)
Assembly Versions: 0.1.0.0

Members

See Also: Inherited members from object.

Public Methods

Member Details

Aggregate<TKey,TValue,TResult> Generic Method

Applies an accumulator to a KeyValuePair<TKey, TValue>, converting the KeyValuePair<TKey, TValue> into a different value.

public static TResult Aggregate<TKey, TValue, TResult> (this KeyValuePair<TKey, TValue> self, Func<TKey, TValue, TResult> func)

Type Parameters

TKey
The type of the key.
TValue
Type type of the value.
TResult
The type to accumulator value.

Parameters

self
A KeyValuePair<TKey, TValue>. instance to convert into a TResult.
func
A Func<TKey, TValue, TResult> which is invoked to convert the KeyValuePair<TKey, TValue> into a TResult.

Returns

A TResult, which is the return value of func.

Exceptions

Type Reason
ArgumentNullException Documentation for this section has not yet been entered.

Remarks

This is useful primarily to avoid an unseemly temporary (or to more easily use KeyValuePair<TKey, TValue>s within expressions).

C# Example
var dict = new Dictionary<int, int> { 
    { 1, 1 },
    { 2, 4 },
    { 3, 9 },
};
string entries = dict
    .Select( 
        e => /* e is a KeyValuePair<int,int> */ 
            e.Aggregate( (k, v) => string.Format("({0},{1})", k, v) ) )
    .Implode("|");
// entries contains "(1,1)|(2,4)|(3,9)"
          

Requirements

Namespace: Cadenza.Collections
Assembly: Cadenza (in Cadenza.dll)
Assembly Versions: 0.1.0.0

ToTuple<TKey,TValue> Generic Method

Converts a KeyValuePair<TKey, TValue> into a Cadenza.Tuple<TKey, TValue>.

public static Cadenza.Tuple<TKey, TValue> ToTuple<TKey, TValue> (this KeyValuePair<TKey, TValue> self)

See Also

Cadenza.TupleCoda.ToKeyValuePair``2(Cadenza.Tuple<``0, ``1>)

Type Parameters

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

Parameters

self
A KeyValuePair<TKey, TValue>. to convert into a Cadenza.Tuple<TKey, TValue>.

Returns

A Cadenza.Tuple<TKey, TValue> struct.

Remarks

The value of the returned Cadenza.Tuple`2._1 property is copied from KeyValuePair`2.Key and the value of the returned Cadenza.Tuple`2._2 is copied from KeyValuePair`2.Value.

C# Example
KeyValuePair<string, int> kvp   = new KeyValuePair<string, int> ("s", 1);
Tuple<string, int>        tuple = kvp.ToTuple ();
    // tuple._1 == "s", tuple._2 == 1

Requirements

Namespace: Cadenza.Collections
Assembly: Cadenza (in Cadenza.dll)
Assembly Versions: 0.1.0.0