Static class: RT.Util.ExtensionMethods.CollectionExtensions

• Assembly: RT.Util.Core, Version=1.0.0.9999, Culture=neutral, PublicKeyToken=null
• Namespace: RT.Util.ExtensionMethods

Summary

Provides extension methods on various collection types or interfaces in the System.Collections.Generic namespace such as Dictionary<TKey, TValue> and on arrays.

Static methods

void	AddRange<T>(this HashSet<T> set, IEnumerable<T> values)	Adds several values into a HashSet<T>.
void	BinarySearch<TK, TV>(this SortedList<TK, TV> list, TK key, out int index1, out int index2)	Performs a binary search for the specified key on a SortedList<T1, T2>. When no match exists, returns the nearest indices for interpolation/extrapolation purposes. (see also remarks)
bool	Contains<TKey, TValue>(this IDictionary<TKey, HashSet<TValue>> source, TKey key, TValue value)	Determines whether the current HashSet-in-a-Dictionary contains the specified key and value.
bool	ContainsKeys<TKey1, TKey2, TValue>(this IDictionary<TKey1, Dictionary<TKey2, TValue>> source, TKey1 key1, TKey2 key2)	Determines whether the current two-level dictionary contains the specified combination of keys.
IDictionary<TKey, TValue>	CopyMerge<TKey, TValue>(this IDictionary<TKey, TValue> first, IDictionary<TKey, TValue> second)	Creates a new dictionary containing the union of the key/value pairs contained in the specified dictionaries. Keys in second overwrite keys in first.
bool	DictionaryEqual<TK, TV>(this IDictionary<TK, TV> dictA, IDictionary<TK, TV> dictB)	Compares two dictionaries for equality, member-wise. Two dictionaries are equal if they contain all the same key-value pairs.
void	EnqueueRange<T>(this Queue<T> queue, IEnumerable<T> values)	Enqueues several values into a Queue<T>.
TValue	Get<TKey, TValue>(this IDictionary<TKey, TValue> dict, TKey key, TValue defaultVal)	Gets a value from a dictionary by key. If the key does not exist in the dictionary, the default value is returned instead.
TValue?	Get<TKey, TValue>(this IDictionary<TKey, TValue> dict, TKey key, TValue? defaultVal = null)
TValue	Get<TKey1, TKey2, TValue>(this IDictionary<TKey1, Dictionary<TKey2, TValue>> dict, TKey1 key1, TKey2 key2, TValue defaultVal)	Gets a value from a two-level dictionary by key. If the keys don’t exist in the dictionary, the default value is returned instead.
int	IndexOfSubarray<T>(this T[] sourceArray, T[] findWhat, IEqualityComparer<T> comparer = null)	Searches the current array for a specified subarray and returns the index of the first occurrence, or -1 if not found.
int	IndexOfSubarray<T>(this T[] sourceArray, T[] findWhat, int startIndex, int? sourceLength = null, IEqualityComparer<T> comparer = null)
T[]	Insert<T>(this T[] array, int startIndex, params T[] values)	Similar to string.Insert(int, string), but for arrays. Returns a new array with the values inserted starting from the specified startIndex. (see also remarks)
T[]	Insert<T>(this T[] array, int startIndex, T value)	Similar to string.Insert(int, string), but for arrays and for a single value. Returns a new array with the value inserted at the specified startIndex.
void	Pop<T>(this Stack<T> stack, int count)	Pops the specified number of elements from the stack. There must be at least that many items on the stack, otherwise an exception is thrown.
T[]	Remove<T>(this T[] array, int startIndex)	Similar to string.Remove(int), but for arrays. Returns a new array containing only the items before the specified startIndex. (see also remarks)
T[]	Remove<T>(this T[] array, int startIndex, int length)	Similar to string.Remove(int, int), but for arrays. Returns a new array containing everything except the length items starting from the specified startIndex. (see also remarks)
void	RemoveAll<TKey, TVal>(this IDictionary<TKey, TVal> dict, Func<KeyValuePair<TKey, TVal>, bool> predicate)	Removes all entries from a dictionary that satisfy a specified predicate.
void	RemoveAllByKey<TKey, TVal>(this IDictionary<TKey, TVal> dict, Func<TKey, bool> predicate)	Removes all entries from a dictionary whose keys satisfy a specified predicate.
void	RemoveAllByValue<TKey, TVal>(this IDictionary<TKey, TVal> dict, Func<TVal, bool> predicate)	Removes all entries from a dictionary whose values satisfy a specified predicate.
void	RemoveRange<T>(this List<T> list, IEnumerable<T> values)	Removes several values from a List<T>.
T[]	Replace<T>(this T[] array, int index, T element)	Returns a new array in which a single element has been replaced.
ListSelectIterator<TInput, TInput>	Reverse<TInput>(this IList<TInput> source)	Inverts the order of the elements in a sequence. (see also remarks)
T[]	ReverseInplace<T>(this T[] input)	Reverses an array in-place and returns the same array.
ListSelectIterator<TInput, TResult>	Select<TInput, TResult>(this IList<TInput> source, Func<TInput, TResult> selector)	Projects each element of a sequence into a new form. (see also remarks)
T[]	Subarray<T>(this T[] array, int startIndex)	Similar to string.Substring(int), but for arrays. Returns a new array containing all items from the specified startIndex onwards. (see also remarks)
T[]	Subarray<T>(this T[] array, int startIndex, int length)	Similar to string.Substring(int, int), but for arrays. Returns a new array containing length items from the specified startIndex onwards. (see also remarks)
bool	SubarrayEquals<T>(this T[] sourceArray, int sourceStartIndex, T[] otherArray, IEqualityComparer<T> comparer = null)	Determines whether a subarray within the current array is equal to the specified other array.
bool	SubarrayEquals<T>(this T[] sourceArray, int sourceStartIndex, T[] otherArray, int otherStartIndex, int length, IEqualityComparer<T> comparer = null)	Determines whether the two arrays contain the same content in the specified location.
Dictionary<TKey, TValue>	ToDictionary<TKey, TValue>(this IEnumerable<KeyValuePair<TKey, TValue>> source, IEqualityComparer<TKey> comparer = null, bool ignoreDuplicateKeys = false)	Converts an IEnumerable<KeyValuePair<TKey, TValue>> into a Dictionary<TKey, TValue>.
bool	TryGetValue<TKey1, TKey2, TValue>(this IDictionary<TKey1, Dictionary<TKey2, TValue>> source, TKey1 key1, TKey2 key2, out TValue value)	Gets the value associated with the specified combination of keys.