ICollection<T> Interface
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Defines methods to manipulate generic collections.
Namespace: System.Collections.Generic
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Public Interface ICollection(Of T) _
Inherits IEnumerable(Of T), IEnumerable
public interface ICollection<T> : IEnumerable<T>,
IEnumerable
Type Parameters
- T
The type of the elements in the collection.
The ICollection<T> type exposes the following members.
Properties
| Name | Description | |
|---|---|---|
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Count | Gets the number of elements contained in the ICollection<T>. |
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IsReadOnly | Gets a value indicating whether the ICollection<T> is read-only. |
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Methods
| Name | Description | |
|---|---|---|
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Add | Adds an item to the ICollection<T>. |
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Clear | Removes all items from the ICollection<T>. |
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Contains | Determines whether the ICollection<T> contains a specific value. |
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CopyTo | Copies the elements of the ICollection<T> to an Array, starting at a particular Array index. |
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GetEnumerator() | Returns an enumerator that iterates through a collection. (Inherited from IEnumerable.) |
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GetEnumerator() | Returns an enumerator that iterates through the collection. (Inherited from IEnumerable<T>.) |
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Remove | Removes the first occurrence of a specific object from the ICollection<T>. |
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Extension Methods
| Name | Description | |
|---|---|---|
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Aggregate<T>(Func<T, T, T>) | Overloaded. Applies an accumulator function over a sequence. (Defined by Enumerable.) |
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Aggregate<T, TAccumulate>(TAccumulate, Func<TAccumulate, T, TAccumulate>) | Overloaded. Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value. (Defined by Enumerable.) |
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Aggregate<T, TAccumulate, TResult>(TAccumulate, Func<TAccumulate, T, 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.) |
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All<T> | Determines whether all elements of a sequence satisfy a condition. (Defined by Enumerable.) |
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Any<T>() | Overloaded. Determines whether a sequence contains any elements. (Defined by Enumerable.) |
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Any<T>(Func<T, Boolean>) | Overloaded. Determines whether any element of a sequence satisfies a condition. (Defined by Enumerable.) |
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AsEnumerable<T> | Returns the input typed as IEnumerable<T>. (Defined by Enumerable.) |
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AsQueryable() | Overloaded. Converts an IEnumerable to an IQueryable. (Defined by Queryable.) |
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AsQueryable<T>() | Overloaded. Converts a generic IEnumerable<T> to a generic IQueryable<T>. (Defined by Queryable.) |
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Average<T>(Func<T, 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.) |
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Average<T>(Func<T, 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.) |
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Average<T>(Func<T, 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.) |
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Average<T>(Func<T, 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.) |
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Average<T>(Func<T, 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.) |
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Average<T>(Func<T, 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.) |
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Average<T>(Func<T, 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.) |
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Average<T>(Func<T, 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.) |
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Average<T>(Func<T, 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.) |
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Average<T>(Func<T, 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.) |
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Cast<TResult> | Converts the elements of an IEnumerable to the specified type. (Defined by Enumerable.) |
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Concat<T> | Concatenates two sequences. (Defined by Enumerable.) |
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Contains<T>(T) | Overloaded. Determines whether a sequence contains a specified element by using the default equality comparer. (Defined by Enumerable.) |
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Contains<T>(T, IEqualityComparer<T>) | Overloaded. Determines whether a sequence contains a specified element by using a specified IEqualityComparer<T>. (Defined by Enumerable.) |
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Count<T>() | Overloaded. Returns the number of elements in a sequence. (Defined by Enumerable.) |
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Count<T>(Func<T, Boolean>) | Overloaded. Returns a number that represents how many elements in the specified sequence satisfy a condition. (Defined by Enumerable.) |
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DefaultIfEmpty<T>() | 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.) |
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DefaultIfEmpty<T>(T) | Overloaded. Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty. (Defined by Enumerable.) |
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Distinct<T>() | Overloaded. Returns distinct elements from a sequence by using the default equality comparer to compare values. (Defined by Enumerable.) |
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Distinct<T>(IEqualityComparer<T>) | Overloaded. Returns distinct elements from a sequence by using a specified IEqualityComparer<T> to compare values. (Defined by Enumerable.) |
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ElementAt<T> | Returns the element at a specified index in a sequence. (Defined by Enumerable.) |
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ElementAtOrDefault<T> | Returns the element at a specified index in a sequence or a default value if the index is out of range. (Defined by Enumerable.) |
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Except<T>(IEnumerable<T>) | Overloaded. Produces the set difference of two sequences by using the default equality comparer to compare values. (Defined by Enumerable.) |
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Except<T>(IEnumerable<T>, IEqualityComparer<T>) | Overloaded. Produces the set difference of two sequences by using the specified IEqualityComparer<T> to compare values. (Defined by Enumerable.) |
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First<T>() | Overloaded. Returns the first element of a sequence. (Defined by Enumerable.) |
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First<T>(Func<T, Boolean>) | Overloaded. Returns the first element in a sequence that satisfies a specified condition. (Defined by Enumerable.) |
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FirstOrDefault<T>() | Overloaded. Returns the first element of a sequence, or a default value if the sequence contains no elements. (Defined by Enumerable.) |
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FirstOrDefault<T>(Func<T, 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.) |
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GroupBy<T, TKey>(Func<T, TKey>) | Overloaded. Groups the elements of a sequence according to a specified key selector function. (Defined by Enumerable.) |
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GroupBy<T, TKey>(Func<T, 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.) |
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GroupBy<T, TKey, TElement>(Func<T, TKey>, Func<T, 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.) |
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GroupBy<T, TKey, TResult>(Func<T, TKey>, Func<TKey, IEnumerable<T>, 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.) |
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GroupBy<T, TKey, TElement>(Func<T, TKey>, Func<T, 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.) |
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GroupBy<T, TKey, TResult>(Func<T, TKey>, Func<TKey, IEnumerable<T>, 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.) |
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GroupBy<T, TKey, TElement, TResult>(Func<T, TKey>, Func<T, 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.) |
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GroupBy<T, TKey, TElement, TResult>(Func<T, TKey>, Func<T, 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.) |
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GroupJoin<T, TInner, TKey, TResult>(IEnumerable<TInner>, Func<T, TKey>, Func<TInner, TKey>, Func<T, 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.) |
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GroupJoin<T, TInner, TKey, TResult>(IEnumerable<TInner>, Func<T, TKey>, Func<TInner, TKey>, Func<T, 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.) |
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Intersect<T>(IEnumerable<T>) | Overloaded. Produces the set intersection of two sequences by using the default equality comparer to compare values. (Defined by Enumerable.) |
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Intersect<T>(IEnumerable<T>, IEqualityComparer<T>) | Overloaded. Produces the set intersection of two sequences by using the specified IEqualityComparer<T> to compare values. (Defined by Enumerable.) |
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Join<T, TInner, TKey, TResult>(IEnumerable<TInner>, Func<T, TKey>, Func<TInner, TKey>, Func<T, 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.) |
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Join<T, TInner, TKey, TResult>(IEnumerable<TInner>, Func<T, TKey>, Func<TInner, TKey>, Func<T, 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.) |
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Last<T>() | Overloaded. Returns the last element of a sequence. (Defined by Enumerable.) |
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Last<T>(Func<T, Boolean>) | Overloaded. Returns the last element of a sequence that satisfies a specified condition. (Defined by Enumerable.) |
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LastOrDefault<T>() | Overloaded. Returns the last element of a sequence, or a default value if the sequence contains no elements. (Defined by Enumerable.) |
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LastOrDefault<T>(Func<T, 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.) |
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LongCount<T>() | Overloaded. Returns an Int64 that represents the total number of elements in a sequence. (Defined by Enumerable.) |
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LongCount<T>(Func<T, Boolean>) | Overloaded. Returns an Int64 that represents how many elements in a sequence satisfy a condition. (Defined by Enumerable.) |
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Max<T>() | Overloaded. Returns the maximum value in a generic sequence. (Defined by Enumerable.) |
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Max<T>(Func<T, Decimal>) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Decimal value. (Defined by Enumerable.) |
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Max<T>(Func<T, Nullable<Decimal>>) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Decimal value. (Defined by Enumerable.) |
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Max<T>(Func<T, Double>) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Double value. (Defined by Enumerable.) |
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Max<T>(Func<T, Nullable<Double>>) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Double value. (Defined by Enumerable.) |
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Max<T>(Func<T, Int32>) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Int32 value. (Defined by Enumerable.) |
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Max<T>(Func<T, Nullable<Int32>>) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Int32 value. (Defined by Enumerable.) |
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Max<T>(Func<T, Int64>) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Int64 value. (Defined by Enumerable.) |
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Max<T>(Func<T, Nullable<Int64>>) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Int64 value. (Defined by Enumerable.) |
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Max<T>(Func<T, Single>) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Single value. (Defined by Enumerable.) |
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Max<T>(Func<T, Nullable<Single>>) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Single value. (Defined by Enumerable.) |
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Max<T, TResult>(Func<T, TResult>) | Overloaded. Invokes a transform function on each element of a generic sequence and returns the maximum resulting value. (Defined by Enumerable.) |
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Min<T>() | Overloaded. Returns the minimum value in a generic sequence. (Defined by Enumerable.) |
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Min<T>(Func<T, Decimal>) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Decimal value. (Defined by Enumerable.) |
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Min<T>(Func<T, Nullable<Decimal>>) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Decimal value. (Defined by Enumerable.) |
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Min<T>(Func<T, Double>) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Double value. (Defined by Enumerable.) |
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Min<T>(Func<T, Nullable<Double>>) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Double value. (Defined by Enumerable.) |
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Min<T>(Func<T, Int32>) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Int32 value. (Defined by Enumerable.) |
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Min<T>(Func<T, Nullable<Int32>>) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Int32 value. (Defined by Enumerable.) |
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Min<T>(Func<T, Int64>) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Int64 value. (Defined by Enumerable.) |
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Min<T>(Func<T, Nullable<Int64>>) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Int64 value. (Defined by Enumerable.) |
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Min<T>(Func<T, Single>) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Single value. (Defined by Enumerable.) |
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Min<T>(Func<T, Nullable<Single>>) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Single value. (Defined by Enumerable.) |
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Min<T, TResult>(Func<T, TResult>) | Overloaded. Invokes a transform function on each element of a generic sequence and returns the minimum resulting value. (Defined by Enumerable.) |
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OfType<TResult> | Filters the elements of an IEnumerable based on a specified type. (Defined by Enumerable.) |
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OrderBy<T, TKey>(Func<T, TKey>) | Overloaded. Sorts the elements of a sequence in ascending order according to a key. (Defined by Enumerable.) |
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OrderBy<T, TKey>(Func<T, TKey>, IComparer<TKey>) | Overloaded. Sorts the elements of a sequence in ascending order by using a specified comparer. (Defined by Enumerable.) |
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OrderByDescending<T, TKey>(Func<T, TKey>) | Overloaded. Sorts the elements of a sequence in descending order according to a key. (Defined by Enumerable.) |
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OrderByDescending<T, TKey>(Func<T, TKey>, IComparer<TKey>) | Overloaded. Sorts the elements of a sequence in descending order by using a specified comparer. (Defined by Enumerable.) |
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Reverse<T> | Inverts the order of the elements in a sequence. (Defined by Enumerable.) |
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Select<T, TResult>(Func<T, TResult>) | Overloaded. Projects each element of a sequence into a new form. (Defined by Enumerable.) |
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Select<T, TResult>(Func<T, Int32, TResult>) | Overloaded. Projects each element of a sequence into a new form by incorporating the element's index. (Defined by Enumerable.) |
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SelectMany<T, TResult>(Func<T, IEnumerable<TResult>>) | Overloaded. Projects each element of a sequence to an IEnumerable<T> and flattens the resulting sequences into one sequence. (Defined by Enumerable.) |
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SelectMany<T, TResult>(Func<T, 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.) |
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SelectMany<T, TCollection, TResult>(Func<T, Int32, IEnumerable<TCollection>>, Func<T, 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.) |
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SelectMany<T, TCollection, TResult>(Func<T, IEnumerable<TCollection>>, Func<T, 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.) |
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SequenceEqual<T>(IEnumerable<T>) | Overloaded. Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type. (Defined by Enumerable.) |
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SequenceEqual<T>(IEnumerable<T>, IEqualityComparer<T>) | Overloaded. Determines whether two sequences are equal by comparing their elements by using a specified IEqualityComparer<T>. (Defined by Enumerable.) |
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Single<T>() | 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.) |
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Single<T>(Func<T, 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.) |
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SingleOrDefault<T>() | 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.) |
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SingleOrDefault<T>(Func<T, 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.) |
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Skip<T> | Bypasses a specified number of elements in a sequence and then returns the remaining elements. (Defined by Enumerable.) |
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SkipWhile<T>(Func<T, Boolean>) | Overloaded. Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. (Defined by Enumerable.) |
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SkipWhile<T>(Func<T, 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.) |
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Sum<T>(Func<T, 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.) |
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Sum<T>(Func<T, 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.) |
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Sum<T>(Func<T, 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.) |
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Sum<T>(Func<T, 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.) |
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Sum<T>(Func<T, 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.) |
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Sum<T>(Func<T, 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.) |
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Sum<T>(Func<T, 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.) |
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Sum<T>(Func<T, 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.) |
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Sum<T>(Func<T, 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.) |
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Sum<T>(Func<T, 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.) |
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Take<T> | Returns a specified number of contiguous elements from the start of a sequence. (Defined by Enumerable.) |
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TakeWhile<T>(Func<T, Boolean>) | Overloaded. Returns elements from a sequence as long as a specified condition is true. (Defined by Enumerable.) |
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TakeWhile<T>(Func<T, 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.) |
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ToArray<T> | Creates an array from a IEnumerable<T>. (Defined by Enumerable.) |
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ToDictionary<T, TKey>(Func<T, TKey>) | Overloaded. Creates a Dictionary<TKey, TValue> from an IEnumerable<T> according to a specified key selector function. (Defined by Enumerable.) |
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ToDictionary<T, TKey>(Func<T, 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.) |
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ToDictionary<T, TKey, TElement>(Func<T, TKey>, Func<T, TElement>) | Overloaded. Creates a Dictionary<TKey, TValue> from an IEnumerable<T> according to specified key selector and element selector functions. (Defined by Enumerable.) |
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ToDictionary<T, TKey, TElement>(Func<T, TKey>, Func<T, 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.) |
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ToList<T> | Creates a List<T> from an IEnumerable<T>. (Defined by Enumerable.) |
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ToLookup<T, TKey>(Func<T, TKey>) | Overloaded. Creates a Lookup<TKey, TElement> from an IEnumerable<T> according to a specified key selector function. (Defined by Enumerable.) |
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ToLookup<T, TKey>(Func<T, 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.) |
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ToLookup<T, TKey, TElement>(Func<T, TKey>, Func<T, TElement>) | Overloaded. Creates a Lookup<TKey, TElement> from an IEnumerable<T> according to specified key selector and element selector functions. (Defined by Enumerable.) |
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ToLookup<T, TKey, TElement>(Func<T, TKey>, Func<T, 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.) |
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Union<T>(IEnumerable<T>) | Overloaded. Produces the set union of two sequences by using the default equality comparer. (Defined by Enumerable.) |
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Union<T>(IEnumerable<T>, IEqualityComparer<T>) | Overloaded. Produces the set union of two sequences by using a specified IEqualityComparer<T>. (Defined by Enumerable.) |
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Where<T>(Func<T, Boolean>) | Overloaded. Filters a sequence of values based on a predicate. (Defined by Enumerable.) |
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Where<T>(Func<T, 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.) |
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Zip<T, TSecond, TResult> | Merges two sequences by using the specified predicate function. (Defined by Enumerable.) |
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Remarks
The ICollection<T> interface is the base interface for classes in the System.Collections.Generic namespace.
The ICollection<T> interface extends IEnumerable<T>; IDictionary<TKey, TValue> and IList<T> are more specialized interfaces that extend ICollection<T>. A IDictionary<TKey, TValue> implementation is a collection of key/value pairs, like the Dictionary<TKey, TValue> class. A IList<T> implementation is a collection of values, and its members can be accessed by index, like the List<T> class.
Some collections that limit access to their elements, like the Queue<T> class and the Stack<T> class, directly implement the ICollection<T> interface.
If neither the IDictionary<TKey, TValue> interface nor the IList<T> interface meet the requirements of the required collection, derive the new collection class from the ICollection<T> interface instead for more flexibility.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
See Also