PrimitiveDataFrameColumn<T>.Item[] 属性

定义

重要

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Item[Int64]
Item[Int64, Int32]

public T? this[long rowIndex] { get; set; }

member this.Item(int64) : Nullable<'T (requires 'T : struct)> with get, set

Default Public Property Item(rowIndex As Long) As Nullable(Of T)

Nullable<T>

public System.Collections.Generic.IReadOnlyList<T?> this[long startIndex, int length] { get; }

member this.Item(int64 * int) : System.Collections.Generic.IReadOnlyList<Nullable<'T>>

Default Public ReadOnly Property Item(startIndex As Long, length As Integer) As IReadOnlyList(Of Nullable(Of T))