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Class UnsortedRecordsCollection

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    Class UnsortedRecordsCollection

    Implements a collection of unsorted Record elements that are children of a Table and represent the original records in the same order as the underlying data source. The collection provides support for determining a record's underlying position in the data source. method.

    An instance of this collection is returned by the UnsortedRecords property of a Table object.

    Inheritance
    System.Object
    UnsortedRecordsCollection
    Implements
    System.Collections.IList
    System.Collections.ICollection
    System.Collections.IEnumerable
    System.IDisposable
    Inherited Members
    System.Object.ToString()
    System.Object.Equals(System.Object)
    System.Object.Equals(System.Object, System.Object)
    System.Object.ReferenceEquals(System.Object, System.Object)
    System.Object.GetHashCode()
    System.Object.GetType()
    System.Object.MemberwiseClone()
    Namespace: Syncfusion.Grouping
    Assembly: Syncfusion.Grouping.Base.dll
    Syntax
    public class UnsortedRecordsCollection : IList, ICollection, IEnumerable, IDisposable

    Properties

    Count

    Gets the number of elements contained in the collection. The property also ensures that the collection is in sync with the underlying table if changes have been made to the table or the TableDescriptor.

    Declaration
    public int Count { get; }
    Property Value
    Type Description
    System.Int32
    Remarks

    The method calls EnsureInitialized(Object, Boolean).

    IsFixedSize

    Returns False since this collection has no fixed size.

    Declaration
    public bool IsFixedSize { get; }
    Property Value
    Type Description
    System.Boolean

    IsReadOnly

    Returns True because this collection is always Read-only.

    Declaration
    public bool IsReadOnly { get; }
    Property Value
    Type Description
    System.Boolean

    IsSynchronized

    Returns False.

    Declaration
    public bool IsSynchronized { get; }
    Property Value
    Type Description
    System.Boolean

    Item[Int32]

    Gets or sets the element at the zero-based index. Setting is not supported and will throw an exception since the collection is Read-only.

    Declaration
    public Record this[int index] { get; set; }
    Parameters
    Type Name Description
    System.Int32 index
    Property Value
    Type Description
    Record
    Remarks

    The method ensures that the collection is in sync with the underlying table if changes have been made to the table or the TableDescriptor.

    The method calls EnsureInitialized(Object, Boolean).

    Methods

    Add(Record)

    Adds the given record into the collection.

    Declaration
    public int Add(Record record)
    Parameters
    Type Name Description
    Record record

    The Record.

    Returns
    Type Description
    System.Int32

    Index at which the record is added.

    Contains(Record)

    Determines if the element belongs to this collection.

    Declaration
    public bool Contains(Record value)
    Parameters
    Type Name Description
    Record value

    The Object to locate in the collection. The value can be a NULL reference (Nothing in Visual Basic).

    Returns
    Type Description
    System.Boolean

    True if item is found in the collection; otherwise, False.

    Remarks

    The method ensures that the collection is in sync with the underlying table if changes have been made to the table or the TableDescriptor.

    The method calls EnsureInitialized(Object, Boolean).

    CopyTo(Record[], Int32)

    Copies the entire collection to a compatible one-dimensional array, starting at the specified index of the target array.

    Declaration
    public void CopyTo(Record[] array, int index)
    Parameters
    Type Name Description
    Record[] array

    The one-dimensional array that is the destination of the elements copied from ArrayList. The array must have zero-based indexing.

    System.Int32 index

    The zero-based index in array at which copying begins.

    Remarks

    The method ensures that the collection is in sync with the underlying table if changes have been made to the table or the TableDescriptor.

    The method calls EnsureInitialized(Object, Boolean).

    Dispose()

    Disposes of the object and releases internal objects.

    Declaration
    public void Dispose()

    GetEnumerator()

    Returns an enumerator for the entire collection.

    Declaration
    public IEnumerator GetEnumerator()
    Returns
    Type Description
    System.Collections.IEnumerator

    An Enumerator for the entire collection.

    Remarks

    Enumerators only allow reading the data in the collection. Enumerators cannot be used to modify the underlying collection.

    GetNext(Record)

    Returns the next record in the collection.

    Declaration
    public Record GetNext(Record r)
    Parameters
    Type Name Description
    Record r

    The Record.

    Returns
    Type Description
    Record

    Next record.

    GetPrevious(Record)

    Returns the previous record in the collection.

    Declaration
    public Record GetPrevious(Record r)
    Parameters
    Type Name Description
    Record r

    The Record.

    Returns
    Type Description
    Record

    Previous record.

    IndexOf(Record)

    Returns the zero-based index of the occurrence of the element in the collection.

    Declaration
    public int IndexOf(Record value)
    Parameters
    Type Name Description
    Record value

    The element to locate in the collection. The value can be a NULL reference (Nothing in Visual Basic).

    Returns
    Type Description
    System.Int32

    The zero-based index of the occurrence of the element within the entire collection, if found; otherwise, -1.

    Remarks

    The method ensures that the collection is in sync with the underlying table if changes have been made to the table or the TableDescriptor.

    The method calls EnsureInitialized(Object, Boolean).

    Insert(Int32, Record)

    Inserts an element into the collection at the specified index.

    Declaration
    public void Insert(int pos, Record r)
    Parameters
    Type Name Description
    System.Int32 pos

    The zero-based index at which the element should be inserted.

    Record r

    The element to insert. The value must not be a NULL reference (Nothing in Visual Basic).

    Remove(Record)

    Removes the record from unsorted records tree.

    Declaration
    public void Remove(Record r)
    Parameters
    Type Name Description
    Record r

    Record to remove.

    RemoveAt(Int32)

    Not supported because collection is Read-only.

    Declaration
    public void RemoveAt(int index)
    Parameters
    Type Name Description
    System.Int32 index

    Record index.

    Explicit Interface Implementations

    ICollection.CopyTo(Array, Int32)

    Copies the elements of the System.Collections.ICollection to an System.Array, starting at a particular System.Array index.

    Declaration
    void ICollection.CopyTo(Array array, int index)
    Parameters
    Type Name Description
    System.Array array

    The one-dimensional System.Array that is the destination of the elements copied from System.Collections.ICollection. The System.Array must have zero-based indexing.

    System.Int32 index

    The zero-based index in array at which copying begins.

    ICollection.SyncRoot

    Gets an object that can be used to synchronize access to the System.Collections.ICollection.

    Declaration
    object ICollection.SyncRoot { get; }
    Returns
    Type Description
    System.Object

    IEnumerable.GetEnumerator()

    Returns an enumerator that iterates through a collection.

    Declaration
    IEnumerator IEnumerable.GetEnumerator()
    Returns
    Type Description
    System.Collections.IEnumerator

    An System.Collections.IEnumerator object that can be used to iterate through the collection.

    IList.Add(Object)

    Adds an item to the System.Collections.IList.

    Declaration
    int IList.Add(object value)
    Parameters
    Type Name Description
    System.Object value

    The object to add to the System.Collections.IList.

    Returns
    Type Description
    System.Int32

    The position into which the new element was inserted, or -1 to indicate that the item was not inserted into the collection.

    IList.Clear()

    Removes all items from the System.Collections.IList.

    Declaration
    void IList.Clear()
    Exceptions
    Type Condition
    System.InvalidOperationException

    If the System.Collections.IList is read-only.

    IList.Contains(Object)

    Determines whether the System.Collections.IList contains a specific value.

    Declaration
    bool IList.Contains(object value)
    Parameters
    Type Name Description
    System.Object value

    The object to locate in the System.Collections.IList.

    Returns
    Type Description
    System.Boolean

    true if the System.Object is found in the System.Collections.IList; otherwise false.

    IList.get_Item(Int32)

    Declaration
    object IList.get_Item(int index)
    Parameters
    Type Name Description
    System.Int32 index
    Returns
    Type Description
    System.Object

    IList.IndexOf(Object)

    Determines the index of a specific item in the System.Collections.IList.

    Declaration
    int IList.IndexOf(object value)
    Parameters
    Type Name Description
    System.Object value

    The object to locate in the System.Collections.IList.

    Returns
    Type Description
    System.Int32

    The index of value if found in the list; otherwise, -1.

    IList.Insert(Int32, Object)

    Inserts an item to the System.Collections.IList at the specified index.

    Declaration
    void IList.Insert(int index, object value)
    Parameters
    Type Name Description
    System.Int32 index

    The zero-based index at which value should be inserted.

    System.Object value

    The object to insert into the System.Collections.IList.

    IList.Item[Int32]

    Gets or sets the element at the specified index.

    Declaration
    object IList.this[] { get; set; }
    Parameters
    Type Name Description
    System.Int32 index

    The zero-based index of the element to get or set.

    Returns
    Type Description
    System.Object

    The element at the specified index.

    IList.Remove(Object)

    Removes the first occurrence of a specific object from the System.Collections.IList.

    Declaration
    void IList.Remove(object value)
    Parameters
    Type Name Description
    System.Object value

    The object to remove from the System.Collections.IList.

    IList.set_Item(Int32, Object)

    Declaration
    void IList.set_Item(int index, object value)
    Parameters
    Type Name Description
    System.Int32 index
    System.Object value

    Implements

    System.Collections.IList
    System.Collections.ICollection
    System.Collections.IEnumerable
    System.IDisposable

    Extension Methods

    EnumerableExtensions.GetElementType(IEnumerable)
    EnumerableExtensions.GetItemPropertyInfo(IEnumerable)
    FunctionalExtensions.ForEach<T>(IEnumerable, Action<T>)
    FunctionalExtensions.ToList<T>(IEnumerable)
    FunctionalExtensions.MoveTo(IList, Int32, Int32)
    QueryableExtensions.OfQueryable(IEnumerable)
    QueryableExtensions.OfQueryable(IEnumerable, Type)
    QueryableExtensions.GroupByMany<TElement>(IEnumerable, Type, List<Func<TElement, Object>>)
    QueryableExtensions.GroupByMany(IEnumerable, Type, Func<String, Expression>, String[])
    QueryableExtensions.GroupByMany(IEnumerable, Type, List<SortDescriptor>, Dictionary<String, IComparer<Object>>, Func<String, Expression>, String[])
    QueryableExtensions.GroupByMany(IEnumerable, Type, List<SortDescriptor>, Func<String, Expression>, String[])
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