Class Columns

Manipulates set of columns.

Inheritance

System.Object

Columns

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: DevZest.Data

Assembly: DevZest.Data.dll

Syntax

public static class Columns

Remarks

Column class implements IColumns, so a Column instance can represent both the column itself and a singleton set of columns. This can improve performance by avoiding unnecessary object creation.

IColumns can be sealed as immutable, any change to IColumns may or may not create a new IColumns instance. Consumer of IColumns should always assume it's immutable.

Properties

Name	Description
Empty	Gets an empty columns set.

Methods

Name	Description
Except(IColumns, IColumns)	Removes specified columns from the current columns.
Intersect(IColumns, IColumns)	Removes the columns to ensure the set contains only columns both exist in the current columns and the specified columns.
IsProperSubsetOf(IColumns, IColumns)	Determines whether the current columns is a proper (strict) subset of the specified columns.
IsProperSupersetOf(IColumns, IColumns)	Determines whether the current columns is a proper (strict) superset of the specified columns.
IsSubsetOf(IColumns, IColumns)	Determines whether the current columns is a subset of a specified columns.
IsSupersetOf(IColumns, IColumns)	Determines whether the current columns is a superset of a specified columns.
New(Column[])	Creates a new set of columns.
Overlaps(IColumns, IColumns)	Determines whether the current columns overlaps with the specified columns.
SetEquals(IColumns, IColumns)	Determines whether the current columns and the specified columns contain the same elements.
SymmetricExcept(IColumns, IColumns)	Ensures set contain only elements that are present either in the current columns or in the specified columns, but not both.
Union(IColumns, IColumns)	Ensures set contain all elements that are present in either the current columns or in the specified columns.