Column class

October 24, 2018

Represents some column which will be queried.

public class Korzh.EasyQuery.Column

Type	Name	Description
`String`	_caption	Column caption
`Boolean`	distinct	A field that indicates whether this `Column` must be marked as DISTINCT in result SQL statement.
`Int32`	innerSortIndex
`Boolean`	needAliasRegeneration	Indicates whether alias should be recreated
`QueryParamList`	Params	The parameters associated with this column
`ColumnStore`	parent	Parent columns storage.
`SortDirection`	sorting	Column sorting direction

Type	Name	Description
`String`	Alias	Gets or Sets the column alias.
`Boolean`	AllowSorting	Gets a value indicating whether this column can be sorted.
`EntityAttr`	BaseAttr	Gets the entity attribute (EntityAttr object) this column is based on.
`String`	Caption	Gets or sets the column caption.
`Boolean`	Distinct	Gets or sets a value indicating whether this `Column` must be marked as DISTINCT in result SQL statement.
`EqExpression`	Expr	Gets or sets the column expression.
`String`	ExprType	Gets or sets the type name of the expression.
`Int32`	Index	Gets the index of column in column list.
`Boolean`	IsAggregate	Gets a value indicating whether this Korzh.EasyQuery.Column is aggregate.
`Boolean`	IsJustSorting	Gets a value indicating whether this column is just sorting one (will not be shown in query result).
`DataModel`	Model	Gets or sets the reference to the data model where this column is defined.
`ColumnStore`	Parent	Gets or sets the parent columns storage.
`Query`	ParentQuery	Gets the parent query.
`Boolean`	ReadOnly	Gets or sets a value indicating whether this columns marked as read only.
`Int32`	SortIndex	Gets or sets the index of the column in the sorting list. Is used to load the column from XML.
`SortDirection`	Sorting	Gets or sets the sorting direction.
`Type`	SystemType	Gets the system type of this column.
`String`	UserData	Gets or sets users data for the column

Type	Name	Description
`EventHandler`	ColumnChanged	Indicates that column was changed.

Type	Name	Description
`void`	CheckDataModel()	Checks the data model object. Generates an exception if Model property has null value.
`void`	CheckForParams()	Checks if the attribute associated with this column contains parameters and (if yes) - calls Korzh.EasyQuery.Query.RefreshParams method.
`void`	ExprChangeHandler(`Object` sender, `EventArgs` e)	Expression's Change event handler.
`EntityAttr`	GetAttribute()	Gets the attribute associated with this column
`Int32`	GetHashCode()	Returns hash code for column
`void`	LoadFromJsonDict(`JsonDict` colDict)	Loads column's properties from some `System.Collections.IDictionary` object. It's used for deserialization from JSON
`void`	LoadFromXmlReader(`XmlReader` reader)	Loads Korzh.EasyQuery.Column definition from XML.
`void`	OnColumnChanged(`Int32` part)	Raises the ColumnChanged event.
`Boolean`	OnColumnChanging(`Int32` part)	Called when the column is about to change.
`void`	RecreateExpression(`String` type)	Recreates the column expression.
`void`	RegenerateCaption()	Regenerates the column caption.
`JsonDict`	SaveToJsonDict()	Saves column properties into some `System.Collections.IDictionary` object. It's useful for JSON serialization
`void`	SaveToXmlWriter(`XmlWriter` writer)	Saves the column definition to XML.