C# Class Tiraggo.DynamicQuery.tgQueryItem

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Public Methods

Method	Description
As ( string alias ) : tgQueryItem	Privides the Ability to Alias a column name
Avg ( ) : tgQueryItem	Aggregate Avg. See tgQuerySubOperatorType Enumeration.
Between ( object start, object end ) : tgComparison	Comparison ensuring that this column is BETWEEN two values. See tgComparisonOperand Enumeration.
Case ( ) : tgCase
Cast ( tgCastType castType ) : tgQueryItem	Cast informs the DataProviders that a SQL CAST operation is needed. In C# you can cast with the overloaded cast operators, like this: (tgString)query.Age
Cast ( tgCastType castType, int length ) : tgQueryItem	Cast informs the DataProviders that a SQL CAST operation is needed. This overloaded version of Cast is useful for Casting variable length character columns In C# you can cast with the overloaded cast operators, like this: (tgString)query.Age
Cast ( tgCastType castType, int precision, int scale ) : tgQueryItem	Cast informs the DataProviders that a SQL CAST operation is needed. This overloaded version of Cast is useful for Casting decimal types In C# you can cast with the overloaded cast operators, like this: (tgString)query.Age
Coalesce ( string expresssions ) : tgQueryItem	This can be used to return the first non null parameter. The code below will return "Smith" is the LastName column in the database is null. `MyCollection coll = new MyCollection(); coll.Query.Select(coll.Query.LastName.Coalesce("'Smith'")); coll.Query.Load();`
Contains ( object value ) : tgComparison	Contains is used to search columns containing character-based data types for precise or fuzzy (less precise) matches to single words and phrases. The column must have a Full Text index. See CONTAINS in the SQL server MSDN docs for a full explanation of supported search terms and how to enable Full Text searching at the database, table, and column levels.
Count ( ) : tgQueryItem	Aggregate Count. See tgQuerySubOperatorType Enumeration.
Date ( ) : tgQueryItem	Returns the Date only portion of a date columm
DatePart ( string datePart ) : tgQueryItem	Returns a particular date part of a date column
Distinct ( ) : tgQueryItem	Set to true for (DISTINCT columnName).
GetHashCode ( ) : int	Required due to operator overloading.
In ( ) : tgComparison	Comparison ensuring that this column is IN a list of values. See tgComparisonOperand Enumeration.
In ( tgDynamicQuerySerializable subQuery ) : tgComparison	Comparison ensuring that this column is IN a list of values.
IsNotNull ( ) : tgComparison	Comparison ensuring that this column is NOT NULL. See tgComparisonOperand Enumeration.
IsNull ( ) : tgComparison	Comparison ensuring that this column is NULL. See tgComparisonOperand Enumeration.
LTrim ( ) : tgQueryItem	Performs a Left Trim (remove blanks) on the column
Length ( ) : tgQueryItem	Returns the length of a character based column
Like ( object value ) : tgComparison	Comparison ensuring that the value passed in is LIKE this column. See tgComparisonOperand Enumeration.
Like ( object value, char escapeCharacter ) : tgComparison	Comparison ensuring that the value passed in is LIKE this column. This overload takes a single escape character. See tgComparisonOperand Enumeration.
Max ( ) : tgQueryItem	Aggregate Max. See tgQuerySubOperatorType Enumeration.
Min ( ) : tgQueryItem	Aggregate Min. See tgQuerySubOperatorType Enumeration.
NotIn ( ) : tgComparison	Comparison ensuring that this column is NOT IN a list of values. See tgComparisonOperand Enumeration.
NotIn ( tgDynamicQuerySerializable subQuery ) : tgComparison	Comparison ensuring that this column is NOT IN a list of values.
NotLike ( object value ) : tgComparison	Comparison ensuring that the value passed in is NOT LIKE this column. See tgComparisonOperand Enumeration.
NotLike ( object value, char escapeCharacter ) : tgComparison	Comparison ensuring that the value passed in is NOT LIKE this column. This overload takes a single escape character. See tgComparisonOperand Enumeration.
OP ( tgComparisonOperand op ) : tgComparison	Where parameter operand creation is called by DynamicQuery. See tgComparisonOperand Enumeration.
OP ( tgComparisonOperand op, object value ) : tgComparison	Where parameter operand creation is called by DynamicQuery. See tgComparisonOperand Enumeration.
OP ( tgComparisonOperand op, object value1, object value2 ) : tgComparison	Where parameter operand creation is called by DynamicQuery. See tgComparisonOperand Enumeration.
RTrim ( ) : tgQueryItem	Performs a Right Trim (remove blanks) on the column
Round ( int significantDigits ) : tgQueryItem	Performs a round on the column
StdDev ( ) : tgQueryItem	Aggregate StdDev. See tgQuerySubOperatorType Enumeration.
Substring ( System length ) : tgQueryItem	Returns a portion of the string column
Substring ( System start, System length ) : tgQueryItem	Returns a portion of the string column
Substring ( int length ) : tgQueryItem	Returns a portion of the string column
Substring ( int start, int length ) : tgQueryItem	Returns a portion of the string column
Sum ( ) : tgQueryItem	Aggregate Sum. See tgQuerySubOperatorType Enumeration.
ToLower ( ) : tgQueryItem	Returns the column in LOWER CASE
ToString ( ) : string	ToString() (to use in GroupBy/OrderBy and such ....)
ToUpper ( ) : tgQueryItem	Returns the column in UPPER CASE
Trim ( ) : tgQueryItem	Removes blanks from the beginning and end of the column
Var ( ) : tgQueryItem	Aggregate Var. See tgQuerySubOperatorType Enumeration.
operator ( ) : tgComparison
operator ( ) : tgQueryItem
tgQueryItem ( tgDynamicQuerySerializable query, string columnName, tgSystemType datatype ) : System	The tgQueryItem class is dynamically created by your BusinessEntity's DynamicQuery mechanism.

Private Methods

Method	Description
AddOperator ( tgQueryItem queryItem, object literal, tgSystemType literalType, bool itemFirst ) : tgQueryItem
AddSubOperator ( tgQuerySubOperator subOperator ) : void
CreateComparisonParameter ( tgComparisonOperand operand ) : tgComparison
CreateComparisonParameter ( tgComparisonOperand operand, object value ) : tgComparison
DivideOperator ( tgQueryItem queryItem, object literal, tgSystemType literalType, bool itemFirst ) : tgQueryItem
Equal ( object value ) : tgComparison
EqualOperator ( tgQueryItem queryItem, object literal, tgSystemType literalType, bool itemFirst ) : tgComparison
Equals ( object o ) : bool
GreaterThan ( object value ) : tgComparison
GreaterThan ( tgQueryItem queryItem, object literal, tgSystemType literalType, bool itemFirst ) : tgComparison
GreaterThanOrEqual ( object value ) : tgComparison
GreaterThanOrEqual ( tgQueryItem queryItem, object literal, tgSystemType literalType, bool itemFirst ) : tgComparison
LessThan ( object value ) : tgComparison
LessThan ( tgQueryItem queryItem, object literal, tgSystemType literalType, bool itemFirst ) : tgComparison
LessThanOrEqual ( object value ) : tgComparison
LessThanOrEqual ( tgQueryItem queryItem, object literal, tgSystemType literalType, bool itemFirst ) : tgComparison
ModuloOperator ( tgQueryItem queryItem, object literal, tgSystemType literalType, bool itemFirst ) : tgQueryItem
MultiplyOperator ( tgQueryItem queryItem, object literal, tgSystemType literalType, bool itemFirst ) : tgQueryItem
NotEqual ( object value ) : tgComparison
NotEqualOperator ( tgQueryItem queryItem, object literal, tgSystemType literalType, bool itemFirst ) : tgComparison
SubtractOperator ( tgQueryItem queryItem, object literal, tgSystemType literalType, bool itemFirst ) : tgQueryItem
tgQueryItem ( ) : System

Method Details

As() public method

Privides the Ability to Alias a column name

public As ( string alias ) : tgQueryItem
alias	string	The Alias Name
return	tgQueryItem

Avg() public method

Aggregate Avg. See tgQuerySubOperatorType Enumeration.

public Avg ( ) : tgQueryItem
return	tgQueryItem

Between() public method

Comparison ensuring that this column is BETWEEN two values. See tgComparisonOperand Enumeration.

public Between ( object start, object end ) : tgComparison
start	object	The starting value for comparison.
end	object	The ending value for comparison.
return	tgComparison

Case() public method

public Case ( ) : tgCase
return	tgCase

Cast() public method

Cast informs the DataProviders that a SQL CAST operation is needed.

In C# you can cast with the overloaded cast operators, like this: (tgString)query.Age

public Cast ( tgCastType castType ) : tgQueryItem
castType	tgCastType	The type of cast needed
return	tgQueryItem

Cast() public method

Cast informs the DataProviders that a SQL CAST operation is needed. This overloaded version of Cast is useful for Casting variable length character columns

In C# you can cast with the overloaded cast operators, like this: (tgString)query.Age

public Cast ( tgCastType castType, int length ) : tgQueryItem
castType	tgCastType	The type of cast needed
length	int
return	tgQueryItem

Cast() public method

Cast informs the DataProviders that a SQL CAST operation is needed. This overloaded version of Cast is useful for Casting decimal types

In C# you can cast with the overloaded cast operators, like this: (tgString)query.Age

public Cast ( tgCastType castType, int precision, int scale ) : tgQueryItem
castType	tgCastType	The type of cast needed
precision	int
scale	int
return	tgQueryItem

Coalesce() public method

This can be used to return the first non null parameter.

The code below will return "Smith" is the LastName column in the database is null. MyCollection coll = new MyCollection(); coll.Query.Select(coll.Query.LastName.Coalesce("'Smith'")); coll.Query.Load();

public Coalesce ( string expresssions ) : tgQueryItem
expresssions	string	The value to return if null
return	tgQueryItem

Contains() public method

Contains is used to search columns containing character-based data types for precise or fuzzy (less precise) matches to single words and phrases. The column must have a Full Text index.

See CONTAINS in the SQL server MSDN docs for a full explanation of supported search terms and how to enable Full Text searching at the database, table, and column levels.

public Contains ( object value ) : tgComparison
value	object	The value for comparison.
return	tgComparison

Count() public method

Aggregate Count. See tgQuerySubOperatorType Enumeration.

public Count ( ) : tgQueryItem
return	tgQueryItem

Date() public method

Returns the Date only portion of a date columm

public Date ( ) : tgQueryItem
return	tgQueryItem

DatePart() public method

Returns a particular date part of a date column

public DatePart ( string datePart ) : tgQueryItem
datePart	string
return	tgQueryItem

Distinct() public method

Set to true for (DISTINCT columnName).

public Distinct ( ) : tgQueryItem
return	tgQueryItem

GetHashCode() public method

Required due to operator overloading.

public GetHashCode ( ) : int
return	int

In() public method

Comparison ensuring that this column is IN a list of values. See tgComparisonOperand Enumeration.

public In ( ) : tgComparison
return	tgComparison

In() public method

Comparison ensuring that this column is IN a list of values.

public In ( tgDynamicQuerySerializable subQuery ) : tgComparison
subQuery	tgDynamicQuerySerializable
return	tgComparison

IsNotNull() public method

Comparison ensuring that this column is NOT NULL. See tgComparisonOperand Enumeration.

public IsNotNull ( ) : tgComparison
return	tgComparison

IsNull() public method

Comparison ensuring that this column is NULL. See tgComparisonOperand Enumeration.

public IsNull ( ) : tgComparison
return	tgComparison

LTrim() public method

Performs a Left Trim (remove blanks) on the column

public LTrim ( ) : tgQueryItem
return	tgQueryItem

Length() public method

Returns the length of a character based column

public Length ( ) : tgQueryItem
return	tgQueryItem

Like() public method

Comparison ensuring that the value passed in is LIKE this column. See tgComparisonOperand Enumeration.

public Like ( object value ) : tgComparison
value	object	The value for comparison.
return	tgComparison

Like() public method

Comparison ensuring that the value passed in is LIKE this column. This overload takes a single escape character. See tgComparisonOperand Enumeration.

public Like ( object value, char escapeCharacter ) : tgComparison
value	object	The value for comparison.
escapeCharacter	char	The single escape character.
return	tgComparison

Max() public method

Aggregate Max. See tgQuerySubOperatorType Enumeration.

public Max ( ) : tgQueryItem
return	tgQueryItem

Min() public method

Aggregate Min. See tgQuerySubOperatorType Enumeration.

public Min ( ) : tgQueryItem
return	tgQueryItem

NotIn() public method

Comparison ensuring that this column is NOT IN a list of values. See tgComparisonOperand Enumeration.

public NotIn ( ) : tgComparison
return	tgComparison

NotIn() public method

Comparison ensuring that this column is NOT IN a list of values.

public NotIn ( tgDynamicQuerySerializable subQuery ) : tgComparison
subQuery	tgDynamicQuerySerializable
return	tgComparison

NotLike() public method

Comparison ensuring that the value passed in is NOT LIKE this column. See tgComparisonOperand Enumeration.

public NotLike ( object value ) : tgComparison
value	object	The value for comparison.
return	tgComparison

NotLike() public method

Comparison ensuring that the value passed in is NOT LIKE this column. This overload takes a single escape character. See tgComparisonOperand Enumeration.

public NotLike ( object value, char escapeCharacter ) : tgComparison
value	object	The value for comparison.
escapeCharacter	char	The single escape character.
return	tgComparison

OP() public method

Where parameter operand creation is called by DynamicQuery. See tgComparisonOperand Enumeration.

public OP ( tgComparisonOperand op ) : tgComparison
op	tgComparisonOperand	E.g., tgComparisonOperand.IsNotNull
return	tgComparison

OP() public method

Where parameter operand creation is called by DynamicQuery. See tgComparisonOperand Enumeration.

public OP ( tgComparisonOperand op, object value ) : tgComparison
op	tgComparisonOperand	E.g., tgComparisonOperand.IsNotNull
value	object	The value for this comparison
return	tgComparison

OP() public method

Where parameter operand creation is called by DynamicQuery. See tgComparisonOperand Enumeration.

public OP ( tgComparisonOperand op, object value1, object value2 ) : tgComparison
op	tgComparisonOperand	E.g., tgComparisonOperand.Between
value1	object	The first value for this comparison
value2	object	The second value for this comparison
return	tgComparison

RTrim() public method

Performs a Right Trim (remove blanks) on the column

public RTrim ( ) : tgQueryItem
return	tgQueryItem

Round() public method

Performs a round on the column

public Round ( int significantDigits ) : tgQueryItem
significantDigits	int	Round to the number of significant digits
return	tgQueryItem

StdDev() public method

Aggregate StdDev. See tgQuerySubOperatorType Enumeration.

public StdDev ( ) : tgQueryItem
return	tgQueryItem

Substring() public method

Returns a portion of the string column

public Substring ( System length ) : tgQueryItem
length	System	How many characters to return
return	tgQueryItem

Substring() public method

Returns a portion of the string column

public Substring ( System start, System length ) : tgQueryItem
start	System	The starting character
length	System	How many characters to return
return	tgQueryItem

Substring() public method

Returns a portion of the string column

public Substring ( int length ) : tgQueryItem
length	int	How many characters to return
return	tgQueryItem

Substring() public method

Returns a portion of the string column

public Substring ( int start, int length ) : tgQueryItem
start	int	The starting character
length	int	How many characters to return
return	tgQueryItem

Sum() public method

Aggregate Sum. See tgQuerySubOperatorType Enumeration.

public Sum ( ) : tgQueryItem
return	tgQueryItem

ToLower() public method

Returns the column in LOWER CASE

public ToLower ( ) : tgQueryItem
return	tgQueryItem

ToString() public method

ToString() (to use in GroupBy/OrderBy and such ....)

public ToString ( ) : string
return	string

ToUpper() public method

Returns the column in UPPER CASE

public ToUpper ( ) : tgQueryItem
return	tgQueryItem

Trim() public method

Removes blanks from the beginning and end of the column

public Trim ( ) : tgQueryItem
return	tgQueryItem

Var() public method

Aggregate Var. See tgQuerySubOperatorType Enumeration.

public Var ( ) : tgQueryItem
return	tgQueryItem

operator() public static method

public static operator ( ) : tgComparison
return	tgComparison

operator() public static method

public static operator ( ) : tgQueryItem
return	tgQueryItem

tgQueryItem() public method

The tgQueryItem class is dynamically created by your BusinessEntity's DynamicQuery mechanism.

public tgQueryItem ( tgDynamicQuerySerializable query, string columnName, tgSystemType datatype ) : System
query	tgDynamicQuerySerializable	The esDynamicQueryTransport passed in via DynamicQuery
columnName	string	The columnName passed in via DynamicQuery
datatype	tgSystemType	The tgSystemType
return	System