C# Class Hd.QueryExtensions.SelectColumn

Describes a column of a select clause

Public Methods

Method	Description
SelectColumn ( ) : System
SelectColumn ( Enum columnName, FromTerm table ) : System
SelectColumn ( Enum columnName, FromTerm table, SqlAggregationFunction function ) : System
SelectColumn ( SqlExpression expr, string columnAlias ) : System	Creates a SelectColumn
SelectColumn ( string columnName ) : System	Creates a SelectColumn with a column name, no table, no column alias and no function
SelectColumn ( string columnName, FromTerm table ) : System	Creates a SelectColumn with a column name, table, no column alias and no function
SelectColumn ( string columnName, FromTerm table, SqlAggregationFunction function ) : System
SelectColumn ( string columnName, FromTerm table, string columnAlias ) : System	Creates a SelectColumn with a column name, table and column alias
SelectColumn ( string columnName, FromTerm table, string columnAlias, SqlAggregationFunction function ) : System	Creates a SelectColumn with a column name, table, column alias and optional aggregation function

public SelectColumn ( ) : System
return	System

public SelectColumn ( Enum columnName, FromTerm table ) : System
columnName	System.Enum
table	FromTerm
return	System

public SelectColumn ( Enum columnName, FromTerm table, SqlAggregationFunction function ) : System
columnName	System.Enum
table	FromTerm
function	SqlAggregationFunction
return	System

Creates a SelectColumn

public SelectColumn ( SqlExpression expr, string columnAlias ) : System
expr	SqlExpression	Expression
columnAlias	string	Column alias
return	System

Creates a SelectColumn with a column name, no table, no column alias and no function

public SelectColumn ( string columnName ) : System
columnName	string	Name of a column
return	System

Creates a SelectColumn with a column name, table, no column alias and no function

public SelectColumn ( string columnName, FromTerm table ) : System
columnName	string	Name of a column
table	FromTerm	The table this field belongs to
return	System

public SelectColumn ( string columnName, FromTerm table, SqlAggregationFunction function ) : System
columnName	string
table	FromTerm
function	SqlAggregationFunction
return	System

Creates a SelectColumn with a column name, table and column alias

public SelectColumn ( string columnName, FromTerm table, string columnAlias ) : System
columnName	string	Name of a column
table	FromTerm	The table this field belongs to
columnAlias	string	Alias of the column
return	System

Creates a SelectColumn with a column name, table, column alias and optional aggregation function

public SelectColumn ( string columnName, FromTerm table, string columnAlias, SqlAggregationFunction function ) : System
columnName	string	Name of a column
table	FromTerm	The table this field belongs to
columnAlias	string	Alias of the column
function	SqlAggregationFunction	Aggregation function to be applied to the column. Use SqlAggregationFunction.None to specify that no function should be applied.
return	System