IReadOnlyDictionary<'TKey, 'TValue> Interface

.NET Framework (current version)
 

Represents a generic read-only collection of key/value pairs.

Namespace:   System.Collections.Generic
Assembly:  mscorlib (in mscorlib.dll)

type IReadOnlyDictionary<'TKey, 'TValue> = 
    interface
        interface IReadOnlyCollection<KeyValuePair<'TKey, 'TValue>>
        interface IEnumerable<KeyValuePair<'TKey, 'TValue>>
        interface IEnumerable
    end

Type Parameters

TKey

The type of keys in the read-only dictionary.

TValue

The type of values in the read-only dictionary.

NameDescription
System_CAPS_pubpropertyCount

Gets the number of elements in the collection.(Inherited from IReadOnlyCollection<'T>.)

System_CAPS_pubpropertyItem('TKey)

Gets the element that has the specified key in the read-only dictionary.

System_CAPS_pubpropertyKeys

Gets an enumerable collection that contains the keys in the read-only dictionary.

System_CAPS_pubpropertyValues

Gets an enumerable collection that contains the values in the read-only dictionary.

NameDescription
System_CAPS_pubmethodContainsKey('TKey)

Determines whether the read-only dictionary contains an element that has the specified key.

System_CAPS_pubmethodGetEnumerator()

Returns an enumerator that iterates through the collection.(Inherited from IEnumerable<'T>.)

System_CAPS_pubmethodTryGetValue('TKey, 'TValue)

Gets the value that is associated with the specified key.

NameDescription
System_CAPS_pubmethodAggregate<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, KeyValuePair<'TKey, 'TValue>, KeyValuePair<'TKey, 'TValue>>)

Overloaded. Applies an accumulator function over a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAggregate<KeyValuePair<'TKey, 'TValue>, 'TAccumulate>('TAccumulate, Func<'TAccumulate, KeyValuePair<'TKey, 'TValue>, 'TAccumulate>)

Overloaded. Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.(Defined by Enumerable.)

System_CAPS_pubmethodAggregate<KeyValuePair<'TKey, 'TValue>, 'TAccumulate, 'TResult>('TAccumulate, Func<'TAccumulate, KeyValuePair<'TKey, 'TValue>, 'TAccumulate>, Func<'TAccumulate, 'TResult>)

Overloaded. Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value.(Defined by Enumerable.)

System_CAPS_pubmethodAll<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Determines whether all elements of a sequence satisfy a condition.(Defined by Enumerable.)

System_CAPS_pubmethodAny<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Determines whether a sequence contains any elements.(Defined by Enumerable.)

System_CAPS_pubmethodAny<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Overloaded. Determines whether any element of a sequence satisfies a condition.(Defined by Enumerable.)

System_CAPS_pubmethodAsEnumerable<KeyValuePair<'TKey, 'TValue>>()

Returns the input typed as IEnumerable<'T>.(Defined by Enumerable.)

System_CAPS_pubmethodAsParallel()

Overloaded. Enables parallelization of a query.(Defined by ParallelEnumerable.)

System_CAPS_pubmethodAsParallel<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Enables parallelization of a query.(Defined by ParallelEnumerable.)

System_CAPS_pubmethodAsQueryable()

Overloaded. Converts an IEnumerable to an IQueryable.(Defined by Queryable.)

System_CAPS_pubmethodAsQueryable<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Converts a generic IEnumerable<'T> to a generic IQueryable<'T>.(Defined by Queryable.)

System_CAPS_pubmethodAverage<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Decimal>)

Overloaded. Computes the average of a sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Double>)

Overloaded. Computes the average of a sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Int32>)

Overloaded. Computes the average of a sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Int64>)

Overloaded. Computes the average of a sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Decimal>>)

Overloaded. Computes the average of a sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Double>>)

Overloaded. Computes the average of a sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Int32>>)

Overloaded. Computes the average of a sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Int64>>)

Overloaded. Computes the average of a sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Single>>)

Overloaded. Computes the average of a sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodAverage<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Single>)

Overloaded. Computes the average of a sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodCast<'TResult>()

Casts the elements of an IEnumerable to the specified type.(Defined by Enumerable.)

System_CAPS_pubmethodConcat<KeyValuePair<'TKey, 'TValue>>(IEnumerable<KeyValuePair<'TKey, 'TValue>>)

Concatenates two sequences.(Defined by Enumerable.)

System_CAPS_pubmethodContains<KeyValuePair<'TKey, 'TValue>>(KeyValuePair<'TKey, 'TValue>)

Overloaded. Determines whether a sequence contains a specified element by using the default equality comparer.(Defined by Enumerable.)

System_CAPS_pubmethodContains<KeyValuePair<'TKey, 'TValue>>(KeyValuePair<'TKey, 'TValue>, IEqualityComparer<KeyValuePair<'TKey, 'TValue>>)

Overloaded. Determines whether a sequence contains a specified element by using a specified IEqualityComparer<'T>.(Defined by Enumerable.)

System_CAPS_pubmethodCount<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Returns the number of elements in a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodCount<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Overloaded. Returns a number that represents how many elements in the specified sequence satisfy a condition.(Defined by Enumerable.)

System_CAPS_pubmethodDefaultIfEmpty<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.(Defined by Enumerable.)

System_CAPS_pubmethodDefaultIfEmpty<KeyValuePair<'TKey, 'TValue>>(KeyValuePair<'TKey, 'TValue>)

Overloaded. Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.(Defined by Enumerable.)

System_CAPS_pubmethodDistinct<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Returns distinct elements from a sequence by using the default equality comparer to compare values.(Defined by Enumerable.)

System_CAPS_pubmethodDistinct<KeyValuePair<'TKey, 'TValue>>(IEqualityComparer<KeyValuePair<'TKey, 'TValue>>)

Overloaded. Returns distinct elements from a sequence by using a specified IEqualityComparer<'T> to compare values.(Defined by Enumerable.)

System_CAPS_pubmethodElementAt<KeyValuePair<'TKey, 'TValue>>(Int32)

Returns the element at a specified index in a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodElementAtOrDefault<KeyValuePair<'TKey, 'TValue>>(Int32)

Returns the element at a specified index in a sequence or a default value if the index is out of range.(Defined by Enumerable.)

System_CAPS_pubmethodExcept<KeyValuePair<'TKey, 'TValue>>(IEnumerable<KeyValuePair<'TKey, 'TValue>>)

Overloaded. Produces the set difference of two sequences by using the default equality comparer to compare values.(Defined by Enumerable.)

System_CAPS_pubmethodExcept<KeyValuePair<'TKey, 'TValue>>(IEnumerable<KeyValuePair<'TKey, 'TValue>>, IEqualityComparer<KeyValuePair<'TKey, 'TValue>>)

Overloaded. Produces the set difference of two sequences by using the specified IEqualityComparer<'T> to compare values.(Defined by Enumerable.)

System_CAPS_pubmethodFirst<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Returns the first element of a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodFirst<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Overloaded. Returns the first element in a sequence that satisfies a specified condition.(Defined by Enumerable.)

System_CAPS_pubmethodFirstOrDefault<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Returns the first element of a sequence, or a default value if the sequence contains no elements.(Defined by Enumerable.)

System_CAPS_pubmethodFirstOrDefault<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Overloaded. Returns the first element of the sequence that satisfies a condition or a default value if no such element is found.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<'TKey, 'TValue>, 'TKey>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>)

Overloaded. Groups the elements of a sequence according to a specified key selector function.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<'TKey, 'TValue>, 'TKey>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, IEqualityComparer<'TKey>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<'TKey, 'TValue>, 'TKey, 'TElement>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<KeyValuePair<'TKey, 'TValue>, 'TElement>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<'TKey, 'TValue>, 'TKey, 'TElement>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<KeyValuePair<'TKey, 'TValue>, 'TElement>, IEqualityComparer<'TKey>)

Overloaded. Groups the elements of a sequence according to a key selector function. The keys are compared by using a comparer and each group's elements are projected by using a specified function.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<'TKey, 'TValue>, 'TKey, 'TResult>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<'TKey, IEnumerable<KeyValuePair<'TKey, 'TValue>>, 'TResult>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<'TKey, 'TValue>, 'TKey, 'TResult>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<'TKey, IEnumerable<KeyValuePair<'TKey, 'TValue>>, 'TResult>, IEqualityComparer<'TKey>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The keys are compared by using a specified comparer.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<'TKey, 'TValue>, 'TKey, 'TElement, 'TResult>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<KeyValuePair<'TKey, 'TValue>, 'TElement>, Func<'TKey, IEnumerable<'TElement>, 'TResult>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function.(Defined by Enumerable.)

System_CAPS_pubmethodGroupBy<KeyValuePair<'TKey, 'TValue>, 'TKey, 'TElement, 'TResult>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<KeyValuePair<'TKey, 'TValue>, 'TElement>, Func<'TKey, IEnumerable<'TElement>, 'TResult>, IEqualityComparer<'TKey>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified function.(Defined by Enumerable.)

System_CAPS_pubmethodGroupJoin<KeyValuePair<'TKey, 'TValue>, 'TInner, 'TKey, 'TResult>(IEnumerable<'TInner>, Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<'TInner, 'TKey>, Func<KeyValuePair<'TKey, 'TValue>, IEnumerable<'TInner>, 'TResult>)

Overloaded. Correlates the elements of two sequences based on equality of keys and groups the results. The default equality comparer is used to compare keys.(Defined by Enumerable.)

System_CAPS_pubmethodGroupJoin<KeyValuePair<'TKey, 'TValue>, 'TInner, 'TKey, 'TResult>(IEnumerable<'TInner>, Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<'TInner, 'TKey>, Func<KeyValuePair<'TKey, 'TValue>, IEnumerable<'TInner>, 'TResult>, IEqualityComparer<'TKey>)

Overloaded. Correlates the elements of two sequences based on key equality and groups the results. A specified IEqualityComparer<'T> is used to compare keys.(Defined by Enumerable.)

System_CAPS_pubmethodIntersect<KeyValuePair<'TKey, 'TValue>>(IEnumerable<KeyValuePair<'TKey, 'TValue>>)

Overloaded. Produces the set intersection of two sequences by using the default equality comparer to compare values.(Defined by Enumerable.)

System_CAPS_pubmethodIntersect<KeyValuePair<'TKey, 'TValue>>(IEnumerable<KeyValuePair<'TKey, 'TValue>>, IEqualityComparer<KeyValuePair<'TKey, 'TValue>>)

Overloaded. Produces the set intersection of two sequences by using the specified IEqualityComparer<'T> to compare values.(Defined by Enumerable.)

System_CAPS_pubmethodJoin<KeyValuePair<'TKey, 'TValue>, 'TInner, 'TKey, 'TResult>(IEnumerable<'TInner>, Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<'TInner, 'TKey>, Func<KeyValuePair<'TKey, 'TValue>, 'TInner, 'TResult>)

Overloaded. Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys.(Defined by Enumerable.)

System_CAPS_pubmethodJoin<KeyValuePair<'TKey, 'TValue>, 'TInner, 'TKey, 'TResult>(IEnumerable<'TInner>, Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<'TInner, 'TKey>, Func<KeyValuePair<'TKey, 'TValue>, 'TInner, 'TResult>, IEqualityComparer<'TKey>)

Overloaded. Correlates the elements of two sequences based on matching keys. A specified IEqualityComparer<'T> is used to compare keys.(Defined by Enumerable.)

System_CAPS_pubmethodLast<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Returns the last element of a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodLast<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Overloaded. Returns the last element of a sequence that satisfies a specified condition.(Defined by Enumerable.)

System_CAPS_pubmethodLastOrDefault<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Returns the last element of a sequence, or a default value if the sequence contains no elements.(Defined by Enumerable.)

System_CAPS_pubmethodLastOrDefault<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Overloaded. Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.(Defined by Enumerable.)

System_CAPS_pubmethodLongCount<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Returns an Int64 that represents the total number of elements in a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodLongCount<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Overloaded. Returns an Int64 that represents how many elements in a sequence satisfy a condition.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Returns the maximum value in a generic sequence.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Decimal>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Decimal value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Double>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Double value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Int32>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Int32 value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Int64>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Int64 value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Decimal>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Decimal value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Double>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Double value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Int32>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Int32 value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Int64>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Int64 value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Single>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Single value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Single>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Single value.(Defined by Enumerable.)

System_CAPS_pubmethodMax<KeyValuePair<'TKey, 'TValue>, 'TResult>(Func<KeyValuePair<'TKey, 'TValue>, 'TResult>)

Overloaded. Invokes a transform function on each element of a generic sequence and returns the maximum resulting value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Returns the minimum value in a generic sequence.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Decimal>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Decimal value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Double>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Double value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Int32>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Int32 value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Int64>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Int64 value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Decimal>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Decimal value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Double>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Double value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Int32>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Int32 value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Int64>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Int64 value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Single>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Single value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Single>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Single value.(Defined by Enumerable.)

System_CAPS_pubmethodMin<KeyValuePair<'TKey, 'TValue>, 'TResult>(Func<KeyValuePair<'TKey, 'TValue>, 'TResult>)

Overloaded. Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.(Defined by Enumerable.)

System_CAPS_pubmethodOfType<'TResult>()

Filters the elements of an IEnumerable based on a specified type.(Defined by Enumerable.)

System_CAPS_pubmethodOrderBy<KeyValuePair<'TKey, 'TValue>, 'TKey>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>)

Overloaded. Sorts the elements of a sequence in ascending order according to a key.(Defined by Enumerable.)

System_CAPS_pubmethodOrderBy<KeyValuePair<'TKey, 'TValue>, 'TKey>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, IComparer<'TKey>)

Overloaded. Sorts the elements of a sequence in ascending order by using a specified comparer.(Defined by Enumerable.)

System_CAPS_pubmethodOrderByDescending<KeyValuePair<'TKey, 'TValue>, 'TKey>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>)

Overloaded. Sorts the elements of a sequence in descending order according to a key.(Defined by Enumerable.)

System_CAPS_pubmethodOrderByDescending<KeyValuePair<'TKey, 'TValue>, 'TKey>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, IComparer<'TKey>)

Overloaded. Sorts the elements of a sequence in descending order by using a specified comparer.(Defined by Enumerable.)

System_CAPS_pubmethodReverse<KeyValuePair<'TKey, 'TValue>>()

Inverts the order of the elements in a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSelect<KeyValuePair<'TKey, 'TValue>, 'TResult>(Func<KeyValuePair<'TKey, 'TValue>, 'TResult>)

Overloaded. Projects each element of a sequence into a new form.(Defined by Enumerable.)

System_CAPS_pubmethodSelect<KeyValuePair<'TKey, 'TValue>, 'TResult>(Func<KeyValuePair<'TKey, 'TValue>, Int32, 'TResult>)

Overloaded. Projects each element of a sequence into a new form by incorporating the element's index.(Defined by Enumerable.)

System_CAPS_pubmethodSelectMany<KeyValuePair<'TKey, 'TValue>, 'TResult>(Func<KeyValuePair<'TKey, 'TValue>, IEnumerable<'TResult>>)

Overloaded. Projects each element of a sequence to an IEnumerable<'T> and flattens the resulting sequences into one sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSelectMany<KeyValuePair<'TKey, 'TValue>, 'TResult>(Func<KeyValuePair<'TKey, 'TValue>, Int32, IEnumerable<'TResult>>)

Overloaded. Projects each element of a sequence to an IEnumerable<'T>, and flattens the resulting sequences into one sequence. The index of each source element is used in the projected form of that element.(Defined by Enumerable.)

System_CAPS_pubmethodSelectMany<KeyValuePair<'TKey, 'TValue>, 'TCollection, 'TResult>(Func<KeyValuePair<'TKey, 'TValue>, IEnumerable<'TCollection>>, Func<KeyValuePair<'TKey, 'TValue>, 'TCollection, 'TResult>)

Overloaded. Projects each element of a sequence to an IEnumerable<'T>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein.(Defined by Enumerable.)

System_CAPS_pubmethodSelectMany<KeyValuePair<'TKey, 'TValue>, 'TCollection, 'TResult>(Func<KeyValuePair<'TKey, 'TValue>, Int32, IEnumerable<'TCollection>>, Func<KeyValuePair<'TKey, 'TValue>, 'TCollection, 'TResult>)

Overloaded. Projects each element of a sequence to an IEnumerable<'T>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein. The index of each source element is used in the intermediate projected form of that element.(Defined by Enumerable.)

System_CAPS_pubmethodSequenceEqual<KeyValuePair<'TKey, 'TValue>>(IEnumerable<KeyValuePair<'TKey, 'TValue>>)

Overloaded. Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type.(Defined by Enumerable.)

System_CAPS_pubmethodSequenceEqual<KeyValuePair<'TKey, 'TValue>>(IEnumerable<KeyValuePair<'TKey, 'TValue>>, IEqualityComparer<KeyValuePair<'TKey, 'TValue>>)

Overloaded. Determines whether two sequences are equal by comparing their elements by using a specified IEqualityComparer<'T>.(Defined by Enumerable.)

System_CAPS_pubmethodSingle<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSingle<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Overloaded. Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.(Defined by Enumerable.)

System_CAPS_pubmethodSingleOrDefault<KeyValuePair<'TKey, 'TValue>>()

Overloaded. Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSingleOrDefault<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Overloaded. Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.(Defined by Enumerable.)

System_CAPS_pubmethodSkip<KeyValuePair<'TKey, 'TValue>>(Int32)

Bypasses a specified number of elements in a sequence and then returns the remaining elements.(Defined by Enumerable.)

System_CAPS_pubmethodSkipWhile<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Overloaded. Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.(Defined by Enumerable.)

System_CAPS_pubmethodSkipWhile<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Int32, Boolean>)

Overloaded. Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Decimal>)

Overloaded. Computes the sum of the sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Double>)

Overloaded. Computes the sum of the sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Int32>)

Overloaded. Computes the sum of the sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Int64>)

Overloaded. Computes the sum of the sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Decimal>>)

Overloaded. Computes the sum of the sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Double>>)

Overloaded. Computes the sum of the sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Int32>>)

Overloaded. Computes the sum of the sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Int64>>)

Overloaded. Computes the sum of the sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Nullable<Single>>)

Overloaded. Computes the sum of the sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodSum<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Single>)

Overloaded. Computes the sum of the sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethodTake<KeyValuePair<'TKey, 'TValue>>(Int32)

Returns a specified number of contiguous elements from the start of a sequence.(Defined by Enumerable.)

System_CAPS_pubmethodTakeWhile<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Overloaded. Returns elements from a sequence as long as a specified condition is true.(Defined by Enumerable.)

System_CAPS_pubmethodTakeWhile<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Int32, Boolean>)

Overloaded. Returns elements from a sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function.(Defined by Enumerable.)

System_CAPS_pubmethodToArray<KeyValuePair<'TKey, 'TValue>>()

Creates an array from a IEnumerable<'T>.(Defined by Enumerable.)

System_CAPS_pubmethodToDictionary<KeyValuePair<'TKey, 'TValue>, 'TKey>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>)

Overloaded. Creates a Dictionary<'TKey, 'TValue> from an IEnumerable<'T> according to a specified key selector function.(Defined by Enumerable.)

System_CAPS_pubmethodToDictionary<KeyValuePair<'TKey, 'TValue>, 'TKey>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, IEqualityComparer<'TKey>)

Overloaded. Creates a Dictionary<'TKey, 'TValue> from an IEnumerable<'T> according to a specified key selector function and key comparer.(Defined by Enumerable.)

System_CAPS_pubmethodToDictionary<KeyValuePair<'TKey, 'TValue>, 'TKey, 'TElement>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<KeyValuePair<'TKey, 'TValue>, 'TElement>)

Overloaded. Creates a Dictionary<'TKey, 'TValue> from an IEnumerable<'T> according to specified key selector and element selector functions.(Defined by Enumerable.)

System_CAPS_pubmethodToDictionary<KeyValuePair<'TKey, 'TValue>, 'TKey, 'TElement>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<KeyValuePair<'TKey, 'TValue>, 'TElement>, IEqualityComparer<'TKey>)

Overloaded. Creates a Dictionary<'TKey, 'TValue> from an IEnumerable<'T> according to a specified key selector function, a comparer, and an element selector function.(Defined by Enumerable.)

System_CAPS_pubmethodToList<KeyValuePair<'TKey, 'TValue>>()

Creates a List<'T> from an IEnumerable<'T>.(Defined by Enumerable.)

System_CAPS_pubmethodToLookup<KeyValuePair<'TKey, 'TValue>, 'TKey>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>)

Overloaded. Creates a Lookup<'TKey, 'TElement> from an IEnumerable<'T> according to a specified key selector function.(Defined by Enumerable.)

System_CAPS_pubmethodToLookup<KeyValuePair<'TKey, 'TValue>, 'TKey>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, IEqualityComparer<'TKey>)

Overloaded. Creates a Lookup<'TKey, 'TElement> from an IEnumerable<'T> according to a specified key selector function and key comparer.(Defined by Enumerable.)

System_CAPS_pubmethodToLookup<KeyValuePair<'TKey, 'TValue>, 'TKey, 'TElement>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<KeyValuePair<'TKey, 'TValue>, 'TElement>)

Overloaded. Creates a Lookup<'TKey, 'TElement> from an IEnumerable<'T> according to specified key selector and element selector functions.(Defined by Enumerable.)

System_CAPS_pubmethodToLookup<KeyValuePair<'TKey, 'TValue>, 'TKey, 'TElement>(Func<KeyValuePair<'TKey, 'TValue>, 'TKey>, Func<KeyValuePair<'TKey, 'TValue>, 'TElement>, IEqualityComparer<'TKey>)

Overloaded. Creates a Lookup<'TKey, 'TElement> from an IEnumerable<'T> according to a specified key selector function, a comparer and an element selector function.(Defined by Enumerable.)

System_CAPS_pubmethodUnion<KeyValuePair<'TKey, 'TValue>>(IEnumerable<KeyValuePair<'TKey, 'TValue>>)

Overloaded. Produces the set union of two sequences by using the default equality comparer.(Defined by Enumerable.)

System_CAPS_pubmethodUnion<KeyValuePair<'TKey, 'TValue>>(IEnumerable<KeyValuePair<'TKey, 'TValue>>, IEqualityComparer<KeyValuePair<'TKey, 'TValue>>)

Overloaded. Produces the set union of two sequences by using a specified IEqualityComparer<'T>.(Defined by Enumerable.)

System_CAPS_pubmethodWhere<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Boolean>)

Overloaded. Filters a sequence of values based on a predicate.(Defined by Enumerable.)

System_CAPS_pubmethodWhere<KeyValuePair<'TKey, 'TValue>>(Func<KeyValuePair<'TKey, 'TValue>, Int32, Boolean>)

Overloaded. Filters a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function.(Defined by Enumerable.)

System_CAPS_pubmethodZip<KeyValuePair<'TKey, 'TValue>, 'TSecond, 'TResult>(IEnumerable<'TSecond>, Func<KeyValuePair<'TKey, 'TValue>, 'TSecond, 'TResult>)

Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.(Defined by Enumerable.)

Each element is a key/value pair that is stored in a KeyValuePair<'TKey, 'TValue> object.

Each pair must have a unique key. Implementations can vary in whether they allow you to specify a key that is null. The value can be null and does not have to be unique. The IDictionary<'TKey, 'TValue> interface allows the contained keys and values to be enumerated, but it does not imply any particular sort order.

The foreach statement of the C# language (For Each in Visual Basic, for each in C++) requires the type of each element in the collection. Because each element of the IReadOnlyDictionary<'TKey, 'TValue> interface is a key/value pair, the element type is not the type of the key or the type of the value. Instead, the element type is KeyValuePair<'TKey, 'TValue>, as the following example illustrates.

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

The foreach statement is a wrapper around the enumerator; it allows only reading from the collection, not writing to the collection.

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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