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MySQL · Types · Other public types

ArxAttributeCollection

Definition

Namespace
ARX.SDK.Services
Package
ARX.SDK
C#
public class ArxAttributeCollection : IEnumerable<KeyValuePair<string, object?>>

An entity's attributes: names and their values. Names are kept as given and matched ignoring case, on read and on write: entity["Name"] finds name, and setting entity["Name"] replaces it. A result with two columns whose names differ only in case is refused (ARX1004).

Constructor

  • ArxAttributeCollection()

    An empty collection; names are matched ignoring case.

  • ArxAttributeCollection(IDictionary<string, object?> dictionary)

    A collection over this dictionary, used as it is (not copied): its comparer decides how names match, so pass one with OrdinalIgnoreCase to match the rest of ARX.

    Parameter Type Description
    dictionaryIDictionary<string, object?>The attributes to start with; names are matched ignoring case.

Properties

  • object? this[string key] { get; set; }

    The value of an attribute; KeyNotFoundException when the collection doesn't have it.

  • int Count { get; }

    The number of attributes.

  • ICollection<string> Keys { get; }

    The attribute names.

  • ICollection<object?> Values { get; }

    The attribute values.

Methods

  • void Add(string key, object? value)

    Adds an attribute; ArgumentException when one with that name (ignoring case) is there.

    Parameter Type Description
    keystringThe attribute name.
    valueobject?Its value; null writes NULL.
  • void Add(KeyValuePair<string, object?> item)

    Adds an attribute.

    Parameter Type Description
    itemKeyValuePair<string, object?>The name and value.
  • void AddRange(IEnumerable<KeyValuePair<string, object?>>? items)

    Adds the attributes.

    Parameter Type Description
    itemsIEnumerable<KeyValuePair<string, object?>>?The names and values; null adds nothing.
  • void AddRange(params KeyValuePair<string, object?>[] items)

    Adds the attributes.

    Parameter Type Description
    itemsparams KeyValuePair<string, object?>[]The names and values.
  • void Clear()

    Removes every attribute.

  • bool Contains(string key)

    True when an attribute has this name (ignoring case).

    Parameter Type Description
    keystringThe attribute name.
  • bool Contains(KeyValuePair<string, object?> item)

    True when this name and value are present.

    Parameter Type Description
    itemKeyValuePair<string, object?>The name and value to look for.
  • bool ContainsKey(string key)

    True when an attribute has this name (ignoring case).

    Parameter Type Description
    keystringThe attribute name.
  • void CopyTo(KeyValuePair<string, object?>[] array, int arrayIndex)

    Copies the attributes into an array.

    Parameter Type Description
    arrayKeyValuePair<string, object?>[]The array to copy into.
    arrayIndexintWhere in the array the first attribute goes.
  • bool Remove(string key)

    Removes the attribute with this name; true when it was there.

    Parameter Type Description
    keystringThe attribute name.
  • bool Remove(KeyValuePair<string, object?> item)

    Removes this name and value; true when it was there.

    Parameter Type Description
    itemKeyValuePair<string, object?>The name and value to remove.
  • bool TryGetValue(string key, out object? value)

    Gets an attribute's value; false when the collection doesn't have it.

    Parameter Type Description
    keystringThe attribute name, matched ignoring case.
    valueout object?The value when found; otherwise null.
  • IEnumerator<KeyValuePair<string, object?>> GetEnumerator()

    The attributes, as name and value pairs.

Notes

Unlike ArxEntity's indexer, which gives null for a name the entity doesn't have, this collection's indexer throws KeyNotFoundException: use TryGetValue or ContainsKey.