Class EnumerableExtensions
Inheritance
System.Object
EnumerableExtensions
Assembly: Eco.Shared.dll
Syntax
public static class EnumerableExtensions : Object
Methods
Any<T>(List<T>, Func<T, Boolean>)
Specialized version for System.Collections.Generic.List<>. No allocations.
Declaration
public static bool Any<T>(this List<T> list, Func<T, bool> predicate)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.List<T> |
list |
|
| System.Func<T, System.Boolean> |
predicate |
|
Returns
| Type |
Description |
| System.Boolean |
|
Type Parameters
AnyNotNull<T>(IEnumerable<T>)
Checks if collection contains at least 1 not null element
Declaration
public static bool AnyNotNull<T>(this IEnumerable<T> objects)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
objects |
|
Returns
| Type |
Description |
| System.Boolean |
|
Type Parameters
AppendNullSafe<T>(IEnumerable<T>, T)
Declaration
public static IEnumerable<T> AppendNullSafe<T>(this IEnumerable<T> source, T element)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
source |
|
| T |
element |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
AsCollection<T>(IEnumerable<T>)
Represents enumerable as System.Collections.Generic.ICollection<> avoiding copy creation if not necessary.
Declaration
public static ICollection<T> AsCollection<T>(this IEnumerable<T> this)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
this |
|
Returns
| Type |
Description |
| System.Collections.Generic.ICollection<T> |
|
Type Parameters
AsList<T>(IEnumerable<T>)
Declaration
public static IList<T> AsList<T>(this IEnumerable<T> this)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
this |
|
Returns
| Type |
Description |
| System.Collections.Generic.IList<T> |
|
Type Parameters
AsReadOnlyList<T>(IEnumerable<T>)
Represents enumerable as System.Collections.Generic.IReadOnlyList<> avoiding copy creation if not necessary.
Declaration
public static IReadOnlyList<T> AsReadOnlyList<T>(this IEnumerable<T> this)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
this |
|
Returns
| Type |
Description |
| System.Collections.Generic.IReadOnlyList<T> |
|
Type Parameters
AverageOrDefault(IEnumerable<Single>, Single)
Declaration
public static float AverageOrDefault(this IEnumerable<float> source, float defaultValue = 0F)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<System.Single> |
source |
|
| System.Single |
defaultValue |
|
Returns
| Type |
Description |
| System.Single |
|
Cast(IEnumerable, Type)
Casts enumerable to System.Collections.Generic.IEnumerable<>. Is useful when you need to cast to specific runtime type, but can't use generic type arguments.
Declaration
public static IEnumerable Cast(this IEnumerable enumerable, Type type)
Parameters
| Type |
Name |
Description |
| System.Collections.IEnumerable |
enumerable |
|
| System.Type |
type |
|
Returns
| Type |
Description |
| System.Collections.IEnumerable |
|
CompareNullSafe<T>(IEnumerable<T>, IEnumerable<T>)
Declaration
public static bool CompareNullSafe<T>(this IEnumerable<T> left, IEnumerable<T> right)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
left |
|
| System.Collections.Generic.IEnumerable<T> |
right |
|
Returns
| Type |
Description |
| System.Boolean |
|
Type Parameters
ConcatNullSafe<T>(IEnumerable<T>, IEnumerable<T>)
Concat two enumerable if possible (both not null). If any enum is null then it will be omitted from concatenation and only non-null enumerable elements will be returned.
If both null then it will return empty enumerable.
Declaration
public static IEnumerable<T> ConcatNullSafe<T>(this IEnumerable<T> left, IEnumerable<T> right)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
left |
|
| System.Collections.Generic.IEnumerable<T> |
right |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
ConcatNullSafe<T>(IEnumerable<T>, IEnumerable<T>, Boolean)
Declaration
public static IEnumerable<T> ConcatNullSafe<T>(this IEnumerable<T> left, IEnumerable<T> right, bool nullAllowed)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
left |
|
| System.Collections.Generic.IEnumerable<T> |
right |
|
| System.Boolean |
nullAllowed |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
ContainsAll<T>(IEnumerable<T>, IEnumerable<T>)
Declaration
public static bool ContainsAll<T>(this IEnumerable<T> objects, IEnumerable<T> mustContain)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
objects |
|
| System.Collections.Generic.IEnumerable<T> |
mustContain |
|
Returns
| Type |
Description |
| System.Boolean |
|
Type Parameters
CountFromLast<T>(IEnumerable<T>, Int32)
Declaration
public static T CountFromLast<T>(this IEnumerable<T> list, int i)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
list |
|
| System.Int32 |
i |
|
Returns
Type Parameters
DependencySorted<T>(IEnumerable<T>, Func<T, IEnumerable<T>>)
Declaration
public static List<T> DependencySorted<T>(this IEnumerable<T> items, Func<T, IEnumerable<T>> dependencyFunc)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
items |
|
| System.Func<T, System.Collections.Generic.IEnumerable<T>> |
dependencyFunc |
|
Returns
| Type |
Description |
| System.Collections.Generic.List<T> |
|
Type Parameters
Duplicates<T, TR>(IEnumerable<T>, Func<T, TR>)
Declaration
public static IEnumerable<T> Duplicates<T, TR>(this IEnumerable<T> list, Func<T, TR> keySelector)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
list |
|
| System.Func<T, TR> |
keySelector |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
FallbackIfEmpty<T>(IEnumerable<T>, Func<IEnumerable<T>>)
Fallback to another enumerable provided by fallbackProvider if enumerable is empty.
Declaration
public static IEnumerable<T> FallbackIfEmpty<T>(this IEnumerable<T> enumerable, Func<IEnumerable<T>> fallbackProvider)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
| System.Func<System.Collections.Generic.IEnumerable<T>> |
fallbackProvider |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
FirstIndex<T>(IEnumerable<T>, Predicate<T>)
Declaration
public static int FirstIndex<T>(this IEnumerable<T> list, Predicate<T> test)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
list |
|
| System.Predicate<T> |
test |
|
Returns
| Type |
Description |
| System.Int32 |
|
Type Parameters
FirstOfTypeOrDefault<T>(IList)
Returns first value in list of type T or default value. No allocations.
Declaration
public static T FirstOfTypeOrDefault<T>(this IList list)
Parameters
| Type |
Name |
Description |
| System.Collections.IList |
list |
|
Returns
Type Parameters
Flatten<T>(IEnumerable<T>, Func<T, IEnumerable<T>>)
Declaration
public static IEnumerable<T> Flatten<T>(this IEnumerable<T> list, Func<T, IEnumerable<T>> generateChildren)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
list |
|
| System.Func<T, System.Collections.Generic.IEnumerable<T>> |
generateChildren |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
ForEach<T>(IEnumerable<T>, Action<T>)
Declaration
public static void ForEach<T>(this IEnumerable<T> enumeration, Action<T> action)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumeration |
|
| System.Action<T> |
action |
|
Type Parameters
ForEach<T, TContext>(IEnumerable<T>, TContext, Action<T, TContext>)
Calls action for each element with context preferring no-alloc enumerator version (avoiding boxing).
Declaration
public static void ForEach<T, TContext>(this IEnumerable<T> enumerable, TContext context, Action<T, TContext> action)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
enumerable.
|
| TContext |
context |
context.
|
| System.Action<T, TContext> |
action |
action.
|
Type Parameters
| Name |
Description |
| T |
item type.
|
| TContext |
context type.
|
ForEach<T, TContext>(List<T>, TContext, Action<T, TContext>)
Calls action for each element with the context for a list.
Declaration
public static void ForEach<T, TContext>(this List<T> list, TContext context, Action<T, TContext> action)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.List<T> |
list |
list.
|
| TContext |
context |
context.
|
| System.Action<T, TContext> |
action |
action.
|
Type Parameters
| Name |
Description |
| T |
item type.
|
| TContext |
context type.
|
ForEach<TKey, TValue, TContext>(Dictionary<TKey, TValue>, TContext, Action<KeyValuePair<TKey, TValue>, TContext>)
Calls action for each entry with the context for a dictionary.
Declaration
public static void ForEach<TKey, TValue, TContext>(this Dictionary<TKey, TValue> dict, TContext context, Action<KeyValuePair<TKey, TValue>, TContext> action)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.Dictionary<TKey, TValue> |
dict |
dictionary.
|
| TContext |
context |
context.
|
| System.Action<System.Collections.Generic.KeyValuePair<TKey, TValue>, TContext> |
action |
action.
|
Type Parameters
| Name |
Description |
| TKey |
key type.
|
| TValue |
value type.
|
| TContext |
context type.
|
ForEach<TKey, TValue, TContext>(IDictionary<TKey, TValue>, TContext, Action<KeyValuePair<TKey, TValue>, TContext>)
Calls action for each entry with the context for a dictionary preferring no-alloc enumerator version (avoiding boxing).
Declaration
public static void ForEach<TKey, TValue, TContext>(this IDictionary<TKey, TValue> dict, TContext context, Action<KeyValuePair<TKey, TValue>, TContext> action)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IDictionary<TKey, TValue> |
dict |
dictionary.
|
| TContext |
context |
context.
|
| System.Action<System.Collections.Generic.KeyValuePair<TKey, TValue>, TContext> |
action |
action.
|
Type Parameters
| Name |
Description |
| TKey |
key type.
|
| TValue |
value type.
|
| TContext |
context type.
|
ForEachIndex<T>(IEnumerable<T>, Action<T, Int32>)
Declaration
public static void ForEachIndex<T>(this IEnumerable<T> enumerable, Action<T, int> handler)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
| System.Action<T, System.Int32> |
handler |
|
Type Parameters
ForEachReverse<T>(IList<T>, Action<T>)
Declaration
public static void ForEachReverse<T>(this IList<T> list, Action<T> action)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IList<T> |
list |
|
| System.Action<T> |
action |
|
Type Parameters
ForEachUntil<T>(IEnumerable<T>, Func<T, Boolean>)
Declaration
public static bool ForEachUntil<T>(this IEnumerable<T> list, Func<T, bool> predicate)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
list |
|
| System.Func<T, System.Boolean> |
predicate |
|
Returns
| Type |
Description |
| System.Boolean |
|
Type Parameters
GetDistinctBy<TSource, TKey>(IEnumerable<TSource>, Func<TSource, TKey>)
Declaration
public static IEnumerable<TSource> GetDistinctBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<TSource> |
source |
|
| System.Func<TSource, TKey> |
keySelector |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<TSource> |
|
Type Parameters
| Name |
Description |
| TSource |
|
| TKey |
|
IsOrdered<TKey, TValue>(IEnumerable<TKey>, Func<TKey, TValue>)
Declaration
public static bool IsOrdered<TKey, TValue>(this IEnumerable<TKey> list, Func<TKey, TValue> predicate)
where TValue : IComparable
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<TKey> |
list |
|
| System.Func<TKey, TValue> |
predicate |
|
Returns
| Type |
Description |
| System.Boolean |
|
Type Parameters
| Name |
Description |
| TKey |
|
| TValue |
|
MaxObj<T>(IEnumerable<T>, Func<T, Double>)
Declaration
public static T MaxObj<T>(this IEnumerable<T> enumeration, Func<T, double> distanceFunc)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumeration |
|
| System.Func<T, System.Double> |
distanceFunc |
|
Returns
Type Parameters
MaxObj<T>(IEnumerable<T>, Func<T, Single>)
Declaration
public static T MaxObj<T>(this IEnumerable<T> enumeration, Func<T, float> distanceFunc)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumeration |
|
| System.Func<T, System.Single> |
distanceFunc |
|
Returns
Type Parameters
MaxOrDefault<T>(IEnumerable<T>, T)
Declaration
public static T MaxOrDefault<T>(this IEnumerable<T> container, T def = null)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
container |
|
| T |
def |
|
Returns
Type Parameters
MaxOrDefault<T, TVal>(IEnumerable<T>, Func<T, TVal>, TVal)
Declaration
public static TVal MaxOrDefault<T, TVal>(this IEnumerable<T> container, Func<T, TVal> selector, TVal def = null)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
container |
|
| System.Func<T, TVal> |
selector |
|
| TVal |
def |
|
Returns
Type Parameters
MaxSet<T>(IEnumerable<T>, Func<T, Single>)
Declaration
public static IEnumerable<T> MaxSet<T>(this IEnumerable<T> enumeration, Func<T, float> valFunc)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumeration |
|
| System.Func<T, System.Single> |
valFunc |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
Returns median value for enumerable. If sorted is false then it makes sorted copy of enumerable to find the median otherwise it just returns medium element.
Declaration
public static T Median<T>(this IEnumerable<T> enumerable, bool sorted = false)
where T : IComparable<T>
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
| System.Boolean |
sorted |
|
Returns
Type Parameters
MinIndex<T>(IEnumerable<T>)
Declaration
public static T MinIndex<T>(this IEnumerable<T> enumeration)
where T : IComparable
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumeration |
|
Returns
Type Parameters
MinObj<T>(IEnumerable<T>, Func<T, Single>)
Returns first item with minimal value of distanceFunc.
Declaration
public static T MinObj<T>(this IEnumerable<T> enumeration, Func<T, float> distanceFunc)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumeration |
|
| System.Func<T, System.Single> |
distanceFunc |
|
Returns
Type Parameters
MinObjAndDist<T>(IEnumerable<T>, Func<T, Single>)
Declaration
public static Nullable<(T, float)> MinObjAndDist<T>(this IEnumerable<T> enumeration, Func<T, float> distanceFunc)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumeration |
|
| System.Func<T, System.Single> |
distanceFunc |
|
Returns
| Type |
Description |
| System.Nullable<System.ValueTuple<T, System.Single>> |
|
Type Parameters
MinOrDefault<T>(IEnumerable<T>, T)
Declaration
public static T MinOrDefault<T>(this IEnumerable<T> container, T def = null)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
container |
|
| T |
def |
|
Returns
Type Parameters
MinOrDefault<T, TVal>(IEnumerable<T>, Func<T, TVal>, TVal)
Declaration
public static TVal MinOrDefault<T, TVal>(this IEnumerable<T> container, Func<T, TVal> selector, TVal def = null)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
container |
|
| System.Func<T, TVal> |
selector |
|
| TVal |
def |
|
Returns
Type Parameters
MinRange<T>(IEnumerable<T>, Int32, IComparer<T>)
Returns up to n minimal elements from enumerable. From smallest to larger.
Declaration
public static T[] MinRange<T>(this IEnumerable<T> enumerable, int n, IComparer<T> comparer)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
| System.Int32 |
n |
|
| System.Collections.Generic.IComparer<T> |
comparer |
|
Returns
Type Parameters
MinSet<T>(IEnumerable<T>, Func<T, Single>)
Declaration
public static IEnumerable<T> MinSet<T>(this IEnumerable<T> enumeration, Func<T, float> valFunc)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumeration |
|
| System.Func<T, System.Single> |
valFunc |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
Mult(IEnumerable<Single>)
Declaration
public static float Mult(this IEnumerable<float> list)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<System.Single> |
list |
|
Returns
| Type |
Description |
| System.Single |
|
None<T>(IEnumerable<T>, Func<T, Boolean>)
Declaration
public static bool None<T>(this IEnumerable<T> this, Func<T, bool> predicate)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
this |
|
| System.Func<T, System.Boolean> |
predicate |
|
Returns
| Type |
Description |
| System.Boolean |
|
Type Parameters
NonNull<T>(IEnumerable<T>)
Declaration
public static IEnumerable<T> NonNull<T>(this IEnumerable<T> list)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
list |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
NullableExcept<T>(IEnumerable<T>, IEnumerable<T>)
Improved version of System.Linq.Enumerable.Except``1(System.Collections.Generic.IEnumerable{``0},System.Collections.Generic.IEnumerable{``0}), but with nullable except support. If it is null then source returned unmodified.
Declaration
public static IEnumerable<T> NullableExcept<T>(this IEnumerable<T> source, IEnumerable<T> except)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
source |
|
| System.Collections.Generic.IEnumerable<T> |
except |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
OfTypeList<T>(IEnumerable<T>, IEnumerable<Type>)
Declaration
public static IEnumerable<T> OfTypeList<T>(this IEnumerable<T> e, IEnumerable<Type> types)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
e |
|
| System.Collections.Generic.IEnumerable<System.Type> |
types |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
ParallelForEach<T>(IEnumerable<T>, Action<T>)
Declaration
public static void ParallelForEach<T>(this IEnumerable<T> enumerable, Action<T> action)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
| System.Action<T> |
action |
|
Type Parameters
ParallelForEach<T, TContext>(IEnumerable<T>, TContext, Action<T, TContext>)
Calls parallel action for each element with context preferring no-alloc enumerator version (avoiding boxing).
Declaration
public static void ParallelForEach<T, TContext>(this IEnumerable<T> enumerable, TContext context, Action<T, TContext> action)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
enumerable.
|
| TContext |
context |
context.
|
| System.Action<T, TContext> |
action |
action.
|
Type Parameters
| Name |
Description |
| T |
item type.
|
| TContext |
context type.
|
Random<T>(IEnumerable<T>)
Declaration
public static T Random<T>(this IEnumerable<T> enumerable)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
Returns
Type Parameters
Random<T>(IEnumerable<T>, Int32)
Declaration
public static IEnumerable<T> Random<T>(this IEnumerable<T> list, int entries)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
list |
|
| System.Int32 |
entries |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
RandomExcept<T>(IEnumerable<T>, Int32)
Declaration
public static T RandomExcept<T>(this IEnumerable<T> enumerable, int i)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
| System.Int32 |
i |
|
Returns
Type Parameters
Range<T>(IEnumerable<T>, Func<T, Single>)
Declaration
public static Range Range<T>(this IEnumerable<T> enumeration, Func<T, float> func)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumeration |
|
| System.Func<T, System.Single> |
func |
|
Returns
Type Parameters
Recursive<T>(IEnumerable<T>, Func<T, IEnumerable<T>>)
Declaration
public static IEnumerable<T> Recursive<T>(this IEnumerable<T> list, Func<T, IEnumerable<T>> getChildren)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
list |
|
| System.Func<T, System.Collections.Generic.IEnumerable<T>> |
getChildren |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
RemoveNulls<T>(List<T>)
Declaration
public static void RemoveNulls<T>(this List<T> list)
where T : class
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.List<T> |
list |
|
Type Parameters
Repeat<T>(Func<T>, Int32)
Declaration
public static IEnumerable<T> Repeat<T>(Func<T> func, int repeatCount)
Parameters
| Type |
Name |
Description |
| System.Func<T> |
func |
|
| System.Int32 |
repeatCount |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
Replace<T>(IEnumerable<T>, T, T)
Declaration
public static IEnumerable<T> Replace<T>(this IEnumerable<T> source, T oldElement, T newElement)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
source |
|
| T |
oldElement |
|
| T |
newElement |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
SelectFrom<TKey, TValue>(IEnumerable<TKey>, IDictionary<TKey, TValue>)
Declaration
public static IEnumerable<TValue> SelectFrom<TKey, TValue>(this IEnumerable<TKey> keys, IDictionary<TKey, TValue> dict)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<TKey> |
keys |
|
| System.Collections.Generic.IDictionary<TKey, TValue> |
dict |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<TValue> |
|
Type Parameters
| Name |
Description |
| TKey |
|
| TValue |
|
SelectFrom<T, TKey, TValue>(IEnumerable<T>, IDictionary<TKey, TValue>, Func<T, TKey>)
Declaration
public static IEnumerable<TValue> SelectFrom<T, TKey, TValue>(this IEnumerable<T> items, IDictionary<TKey, TValue> dict, Func<T, TKey> keyFunc)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
items |
|
| System.Collections.Generic.IDictionary<TKey, TValue> |
dict |
|
| System.Func<T, TKey> |
keyFunc |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<TValue> |
|
Type Parameters
| Name |
Description |
| T |
|
| TKey |
|
| TValue |
|
SelectNonNull<T, TResult>(IEnumerable<T>, Func<T, TResult>, TResult)
Declaration
public static IEnumerable<TResult> SelectNonNull<T, TResult>(this IEnumerable<T> sequence, Func<T, TResult> projection, TResult ifEmpty = null)
where TResult : class
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
sequence |
|
| System.Func<T, TResult> |
projection |
|
| TResult |
ifEmpty |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<TResult> |
|
Type Parameters
| Name |
Description |
| T |
|
| TResult |
|
SequenceEqualNullSafe<T>(IEnumerable<T>, IEnumerable<T>)
Declaration
public static bool SequenceEqualNullSafe<T>(this IEnumerable<T> left, IEnumerable<T> right)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
left |
|
| System.Collections.Generic.IEnumerable<T> |
right |
|
Returns
| Type |
Description |
| System.Boolean |
|
Type Parameters
Shuffle<T>(IEnumerable<T>)
Declaration
public static T[] Shuffle<T>(this IEnumerable<T> enumerable)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
Returns
Type Parameters
SingleItemAsEnumerable<T>(T)
Declaration
public static IEnumerable<T> SingleItemAsEnumerable<T>(this T item)
Parameters
| Type |
Name |
Description |
| T |
item |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
Swap<T>(IEnumerable<T>, T, T)
Declaration
public static IEnumerable<T> Swap<T>(this IEnumerable<T> source, T element1, T element2)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
source |
|
| T |
element1 |
|
| T |
element2 |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
TakeUntilIncluding<T>(IEnumerable<T>, Func<T, Boolean>)
Declaration
public static IEnumerable<T> TakeUntilIncluding<T>(this IEnumerable<T> list, Func<T, bool> predicate)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
list |
|
| System.Func<T, System.Boolean> |
predicate |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters
ToBson(IEnumerable, in BsonSerializationContext, Boolean)
Declaration
public static BSONArray ToBson(this IEnumerable enumeration, in BsonSerializationContext context = null, bool doAllParams = false)
Parameters
| Type |
Name |
Description |
| System.Collections.IEnumerable |
enumeration |
|
| BsonSerializationContext |
context |
|
| System.Boolean |
doAllParams |
|
Returns
ToDictionaryNonNullKeys<TSource, TKey, TElement>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TSource, TElement>)
Declaration
public static Dictionary<TKey, TElement> ToDictionaryNonNullKeys<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<TSource> |
source |
|
| System.Func<TSource, TKey> |
keySelector |
|
| System.Func<TSource, TElement> |
elementSelector |
|
Returns
| Type |
Description |
| System.Collections.Generic.Dictionary<TKey, TElement> |
|
Type Parameters
| Name |
Description |
| TSource |
|
| TKey |
|
| TElement |
|
ToDictionaryWithDistinctKeys<TSource, TKey, TElement>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TSource, TElement>)
Same as ToDictionary, but only adds entry with first distinct key.
Declaration
public static Dictionary<TKey, TElement> ToDictionaryWithDistinctKeys<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<TSource> |
source |
|
| System.Func<TSource, TKey> |
keySelector |
|
| System.Func<TSource, TElement> |
elementSelector |
|
Returns
| Type |
Description |
| System.Collections.Generic.Dictionary<TKey, TElement> |
|
Type Parameters
| Name |
Description |
| TSource |
|
| TKey |
|
| TElement |
|
TryGetFirst<T>(IEnumerable<T>, out T)
Tries to get first element from enumerable (if exists).
Declaration
public static bool TryGetFirst<T>(this IEnumerable<T> enumerable, out T element)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
| T |
element |
|
Returns
| Type |
Description |
| System.Boolean |
true if enumerable is not empty and element contains the first element, false otherwise.
|
Type Parameters
TryGetFirst<T>(IEnumerable<T>, Func<T, Boolean>, out T)
Gets the first value matching predicate into an out var, returning true if found.
Declaration
public static bool TryGetFirst<T>(this IEnumerable<T> enumerable, Func<T, bool> predicate, out T val)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
| System.Func<T, System.Boolean> |
predicate |
|
| T |
val |
|
Returns
| Type |
Description |
| System.Boolean |
|
Type Parameters
TryGetMinBy<TKey, TValue>(IEnumerable<TKey>, Func<TKey, TValue>, out (TKey, TValue))
Tries to get minimal element from enumerable if it has elements. Returns false otherwise.
Declaration
public static bool TryGetMinBy<TKey, TValue>(this IEnumerable<TKey> enumerable, Func<TKey, TValue> valueSelector, out (TKey, TValue) result)
where TValue : struct, ValueType
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<TKey> |
enumerable |
|
| System.Func<TKey, TValue> |
valueSelector |
|
| System.ValueTuple<TKey, TValue> |
result |
|
Returns
| Type |
Description |
| System.Boolean |
|
Type Parameters
| Name |
Description |
| TKey |
|
| TValue |
|
TryGetSingle<T>(IEnumerable<T>, out T)
Gets the single value into an out var, returning true if found only one value.
Declaration
public static bool TryGetSingle<T>(this IEnumerable<T> enumerable, out T val)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
| T |
val |
|
Returns
| Type |
Description |
| System.Boolean |
|
Type Parameters
TryGetSingle<T>(IEnumerable<T>, Func<T, Boolean>, out T)
Gets the single value matching predicate into an out var, returning true if found only one value.
Declaration
public static bool TryGetSingle<T>(this IEnumerable<T> enumerable, Func<T, bool> predicate, out T val)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
| System.Func<T, System.Boolean> |
predicate |
|
| T |
val |
|
Returns
| Type |
Description |
| System.Boolean |
|
Type Parameters
WeightedAverage<T>(IEnumerable<T>, Func<T, Single>, Func<T, Single>)
Declaration
public static float WeightedAverage<T>(this IEnumerable<T> records, Func<T, float> value, Func<T, float> weight)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
records |
|
| System.Func<T, System.Single> |
value |
|
| System.Func<T, System.Single> |
weight |
|
Returns
| Type |
Description |
| System.Single |
|
Type Parameters
WeightedRandom<T>(IEnumerable<T>, Func<T, Single>)
Declaration
public static T WeightedRandom<T>(this IEnumerable<T> enumerable, Func<T, float> weightFunc)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
| System.Func<T, System.Single> |
weightFunc |
|
Returns
Type Parameters
WeightedRandom<T>(IEnumerable<T>, Func<T, Single>, Int32)
Declaration
public static IEnumerable<T> WeightedRandom<T>(this IEnumerable<T> enumerable, Func<T, float> weightFunc, int numToSelect)
Parameters
| Type |
Name |
Description |
| System.Collections.Generic.IEnumerable<T> |
enumerable |
|
| System.Func<T, System.Single> |
weightFunc |
|
| System.Int32 |
numToSelect |
|
Returns
| Type |
Description |
| System.Collections.Generic.IEnumerable<T> |
|
Type Parameters