SortedSet<T> Constructors

Definition

Namespace:

System.Collections.Generic

Assemblies:

netstandard.dll, System.Collections.dll

Initializes a new instance of the SortedSet<T> class.

Overloads

SortedSet<T>()	Initializes a new instance of the SortedSet<T> class.
SortedSet<T>(IComparer<T>)	Initializes a new instance of the SortedSet<T> class that uses a specified comparer.
SortedSet<T>(IEnumerable<T>)	Initializes a new instance of the SortedSet<T> class that contains elements copied from a specified enumerable collection.
SortedSet<T>(IEnumerable<T>, IComparer<T>)	Initializes a new instance of the SortedSet<T> class that contains elements copied from a specified enumerable collection and that uses a specified comparer.
SortedSet<T>(SerializationInfo, StreamingContext)	Obsolete. Initializes a new instance of the SortedSet<T> class that contains serialized data.

Remarks

This constructor is an O(1) operation.

SortedSet<T>()

Source:

SortedSet.cs

Initializes a new instance of the SortedSet<T> class.

C#

public SortedSet();

SortedSet<T>(IComparer<T>)

Source:

SortedSet.cs

Initializes a new instance of the SortedSet<T> class that uses a specified comparer.

C#

public SortedSet(System.Collections.Generic.IComparer<T>? comparer);

Parameters

comparer

IComparer<T>

The default comparer to use for comparing objects.

Exceptions

ArgumentNullException

comparer is null.

Examples

The following example defines a comparer (ByFileExtension) that is used to construct a sorted set that sorts file names by their extensions. This code example is part of a larger example provided for the SortedSet<T> class.

C#

// Create a sorted set using the ByFileExtension comparer.
var mediaFiles1 = new SortedSet<string>(new ByFileExtension());

C#

// Defines a comparer to create a sorted set
// that is sorted by the file extensions.
public class ByFileExtension : IComparer<string>
{
    string xExt, yExt;

    CaseInsensitiveComparer caseiComp = new CaseInsensitiveComparer();

    public int Compare(string x, string y)
    {
        // Parse the extension from the file name.
        xExt = x.Substring(x.LastIndexOf(".") + 1);
        yExt = y.Substring(y.LastIndexOf(".") + 1);

        // Compare the file extensions.
        int vExt = caseiComp.Compare(xExt, yExt);
        if (vExt != 0)
        {
            return vExt;
        }
        else
        {
            // The extension is the same,
            // so compare the filenames.
            return caseiComp.Compare(x, y);
        }
    }
}

SortedSet<T>(IEnumerable<T>)

Source:

SortedSet.cs

Initializes a new instance of the SortedSet<T> class that contains elements copied from a specified enumerable collection.

C#

public SortedSet(System.Collections.Generic.IEnumerable<T> collection);

Parameters

collection

IEnumerable<T>

The enumerable collection to be copied.

Remarks

Duplicate elements in the enumerable collection are not copied into the new instance of the SortedSet<T> class, and no exceptions are thrown.

This constructor is an O(n log n) operation, where n is the number of elements in the collection parameter.

SortedSet<T>(IEnumerable<T>, IComparer<T>)

Source:

SortedSet.cs

Initializes a new instance of the SortedSet<T> class that contains elements copied from a specified enumerable collection and that uses a specified comparer.

C#

public SortedSet(System.Collections.Generic.IEnumerable<T> collection, System.Collections.Generic.IComparer<T>? comparer);

Parameters

collection

IEnumerable<T>

The enumerable collection to be copied.

comparer

IComparer<T>

The default comparer to use for comparing objects.

Exceptions

ArgumentNullException

collection is null.

SortedSet<T>(SerializationInfo, StreamingContext)

Source:

SortedSet.cs

Caution

This API supports obsolete formatter-based serialization. It should not be called or extended by application code.

Initializes a new instance of the SortedSet<T> class that contains serialized data.

C#

[System.Obsolete("This API supports obsolete formatter-based serialization. It should not be called or extended by application code.", DiagnosticId="SYSLIB0051", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
protected SortedSet(System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context);

Parameters

info

SerializationInfo

The object that contains the information that is required to serialize the SortedSet<T> object.

context

StreamingContext

The structure that contains the source and destination of the serialized stream associated with the SortedSet<T> object.

Attributes

ObsoleteAttribute

Remarks

This constructor is called during deserialization to reconstitute an object that is transmitted over a stream.