The Cross-Platform Class Library provides criteria language that you can use in various DevExpress products for building expressions. An expression is a string that, when parsed using the CriteriaOperator.Parse method to a CriteriaOperator object, evaluates a value. The table below contains constants, operators, and functions you can use in expressions.
The following DevExpress products extend and/or override this syntax. The table below lists the articles that explain how to use expressions in these products.
|
PRODUCT |
ARTICLE |
|---|---|
| Reporting | Expression Constants, Operators, and Functions |
| Dashboard | Expression Constants, Operators, and Functions |
| Pivot Grid | Pivot Grid Expression Syntax |
| eXpressApp Framework | Function Criteria Operators |
| eXpress Persistent Objects | Upcasting, Free Joins, How to: Filter Persistent Objects by Type |
Following are the sections that can be used in expressions:
Constants
|
CONSTANT |
DESCRIPTION |
EXAMPLE |
XLS(x) FORMAT EXPORT-FRIENDLY |
|---|---|---|---|
| String constants | Wrap string constants in apostrophes. If a string contains an apostrophe, double the apostrophe. | [Country] == 'France' [Name] == 'O''Neil' | Yes |
| Date-time constants | Wrap date-time constants in '#'. | [OrderDate] >= #2018-03-22 13:18:51.94944# | Yes |
| True | Represents the Boolean True value. | [InStock] == True | Yes |
| False | Represents the Boolean False value. | [InStock] == False | Yes |
| Enumeration | Specify an enumeration value using its underlying integer value. | [Status] == 1 Note that you cannot specify an enumeration value using its qualified name. The following criteria is incorrect: [Status] = Status.InProgress You can register custom enumerations using static methods of the EnumProcessingHelper class and then refer to enumeration values as follows: Status = ##Enum#MyNamespace.Status,InProgress# | Yes |
| Guid | Wrap a Guid constant in curly braces. Use Guid constants in a relational operation with equality or inequality operators only. | [OrderID] == {513724e5-17b7-4ec6-abc4-0eae12c72c1f} | Yes |
| Numeric | Specify different numeric constant types in a string form using suffixes:
|
[Price] == 25.0m | Yes |
| null | Represents a null reference that does not refer to any object. To compare an operand with null, use the IsNull unary operator (for example, "[Region] is null") or the IsNull logical function (for example, "IsNull([Region])"). | Iif([Price] > 25.0m, [Price], null) | Yes |
You can build parameterized criteria using any number of positional parameters. To do this, add parameter placeholders (question mark characters) to a criteria expression to identify parameter positions and provide a list of parameter values. When building criteria, parameter placeholders are substituted with parameter values in values in the order they are listed.
CriteriaOperator.Parse("[Name] == ? and [Age] == ?", "John", 33)
The following two examples are identical, but the second one reduces chances of formatting errors.
CriteriaOperator.Parse("[OrderDate] >= #1/1/2009#")
CriteriaOperator.Parse("[OrderDate] >= ?", new DateTime(2009, 1, 1))
When parameters are not specified, a parameter placeholder is substituted with null.
CriteriaOperator.Parse("[Region] != ?")
Operators
|
OPERATOR |
DESCRIPTION |
EXAMPLE |
XLS(x) FORMAT EXPORT-FRIENDLY |
|---|---|---|---|
| + | Adds the value of one numeric expression to another or concatenates two strings. | [UnitPrice] + 4 [FirstName] + ' ' + [LastName] | Yes |
| - | Finds the difference between two numbers. | [Price1] - [Price2] | Yes |
| * | Multiplies the value of two expressions. | [Quantity] * [UnitPrice] * (1 - [BonusAmount]) | Yes |
| / | Divides the first operand by the second. | [Quantity] / 2 | Yes |
| % | Returns the remainder (modulus) obtained by dividing one numeric expression by another. | [Quantity] % 3 | Yes |
| | | Performs a bitwise inclusive OR on two numeric expressions. Compares each bit of its first operand to the corresponding bit of its second operand. If either bit is 1, the corresponding resulting bit is set to 1. Otherwise, the corresponding resulting bit is set to 0. | [Number] | [Number] | Yes |
| & | The bitwise AND operator. Compares each bit of its first operand to the corresponding bit of its second operand. If both bits are 1, the corresponding resulting bit is set to 1. Otherwise, the corresponding resulting bit is set to 0. | [Number] & 10 | Yes |
| ^ | Performs a bitwise exclusive OR on two numeric expressions. | [Number] ^ [Number] | Yes |
| == = | Returns true if both operands have the same value; otherwise, it returns false. | [Quantity] == 10 | Yes |
| != | Returns true if the operands do not have the same value; otherwise, it returns false. | [Country] != 'France' | Yes |
| < | Less than operator. Used to compare expressions. | [UnitPrice] < 20 | Yes |
| <= | Less than or equal to operator. Used to compare expressions. | [UnitPrice] <= 20 | Yes |
| >= | Greater than or equal to operator. Used to compare expressions. | [UnitPrice] >= 30 | Yes |
| > | Greater than operator. Used to compare expressions. | [UnitPrice] > 30 | Yes |
| In (,,,) | Tests for the existence of a property in an object. | [Country] In ('USA', 'UK', 'Italy') | - |
| Between (,) | Specifies a range to test. Returns true if a value is greater than or equal to the first operand and less than or equal to the second operand. | [Quantity] Between (10, 20) | Yes |
|
And && |
Performs a logical conjunction on two Boolean expressions. | [InStock] And ([ExtendedPrice]> 100) [InStock] && ([ExtendedPrice]> 100) | Yes |
|
Or || |
Performs a logical disjunction on two Boolean expressions. | [Country]=='USA' Or [Country]=='UK' [Country]=='USA' || [Country]=='UK' | Yes |
| ~ | Performs a bitwise negation on a numeric expression. | ~[Roles] = 251 | - |
|
Not ! |
Performs a logical negation on a Boolean expression. | Not [InStock] ![InStock] | Yes |
| + | Returns a numeric expression's value (a unary operator). | +[Value] = 10 | Yes |
| - | Returns the negative of a numeric expression's value (a unary operator). | -[Value] = 20 | Yes |
| Is Null | Returns true if an expression is a null reference, the one that does not refer to any object. | Region] is null | Yes |
Functions
|
FUNCTION |
DESCRIPTION |
EXAMPLE |
XLS(x) FORMAT EXPORT-FRIENDLY |
|---|---|---|---|
| Avg(Value) | Evaluates the average of the values in the collection. | [Products].Avg([UnitPrice]) | - |
| Count() | Returns the number of objects in a collection. | [Products].Count() | - |
| Exists() | Determines whether the object exists in the collection. | [Categories][[CategoryID] == 7].Exists() | - |
| Max(Value) | Returns the maximum expression value in a collection. | [Products].Max([UnitPrice]) | - |
| Min(Value) | Returns the minimum expression value in a collection. | [Products].Min([UnitPrice]) | - |
| Single() |
Returns a single object from a collection that contains no more than one object. If the collection contains more objects, use the Condition property to specify a condition. The collection must contain only one object that satisfies the condition; otherwise, the function's behavior is undefined (the function may return an unexpected value or throw an exception). You can pass an expression as a parameter: [Collection][Condition].Single(Expression). The function returns the Expression value evaluated on an object that meets the specified Condition (optional). |
[Accounts].Single() is not null
[Collection].Single([Property1]) - returns |
- |
| Sum(Value) | Returns the sum of all the expression values in the collection. | [Products].Sum([UnitsInStock]) | - |
| A custom aggregate function |
Returns a custom expression value for a collection, according to a custom aggregate function. You can call the function directly or pass it as a parameter. |
Call a Custom Aggregate Function | - |
Date-time Functions
|
FUNCTIONS |
DESCRIPTION |
EXAMPLE |
XLS(x) FORMAT EXPORT-FRIENDLY |
|---|---|---|---|
| AddDays(DateTime, DaysCount) | Returns a date-time value that is the specified number of days from the specified DateTime. | AddDays([OrderDate], 30) | Yes |
| AddHours(DateTime, HoursCount) | Returns a date-time value that is the specified number of hours from the specified DateTime. | AddHours([StartTime], 2) | Yes |
| AddMilliSeconds(DateTime, MilliSecondsCount) | Returns a date-time value that is the specified number of milliseconds from the specified DateTime. | AddMilliSeconds(([StartTime], 5000)) - | - |
| AddMinutes(DateTime, MinutesCount) | AddMinutes(DateTime, MinutesCount) Returns a date-time value that is the specified number of minutes from the specified DateTime. | AddMinutes([StartTime], 30) | Yes |
| AddMonths(DateTime, MonthsCount) | Returns a date-time value that is the specified number of months from the specified DateTime. | AddMonths([OrderDate], 1) | Yes |
| AddSeconds(DateTime, SecondsCount) | Returns a date-time value that is the specified number of seconds from the specified DateTime. | AddSeconds([StartTime], 60) | Yes |
| AddTicks(DateTime, TicksCount) | Returns a date-time value that is the specified number of ticks from the specified DateTime. | AddTicks([StartTime], 5000) | - |
| AddTimeSpan(DateTime, TimeSpan) | Returns a date-time value that is from the specified DateTime for the given TimeSpan. | AddTimeSpan([StartTime], [Duration]) | - |
| AddYears(DateTime, YearsCount) | Returns a date-time value that is the specified number of years from the specified DateTime. | AddYears([EndDate], -1) | Yes |
| DateDiffDay(startDate, endDate) | The differences in days between the two specified dates (time portion is not taken into account). | DateDiffDay([StartTime], Now()) | Yes |
| DateDiffHour(startDate, endDate) | The difference in hours between between the two specified dates (minutes are not taken into account). | DateDiffHour([StartTime], Now()) | Yes |
| DateDiffMilliSecond(startDate, endDate) | Returns the number of millisecond boundaries between two non-nullable dates. | DateDiffMilliSecond([StartTime], Now()) | - |
| DateDiffMinute(startDate, endDate) | Returns the number of minute boundaries between two non-nullable dates. | DateDiffMinute([StartTime], Now()) | Yes |
| DateDiffMonth(startDate, endDate) | Returns the number of month boundaries between two non-nullable dates. | DateDiffMonth([StartTime], Now()) | Yes |
| DateDiffSecond(startDate, endDate) | Returns the number of second boundaries between two non-nullable dates. | DateDiffSecond([StartTime], Now()) | Yes |
| DateDiffTick(startDate, endDate) | Returns the number of tick boundaries between two non-nullable dates. | DateDiffTick([StartTime], Now()) | - |
| DateDiffYear(startDate, endDate) | Returns the number of year boundaries between two non-nullable dates. | DateDiffYear([StartTime], Now()) | Yes |
| GetDate(DateTime) | Extracts a date from the defined DateTime. | GetDate([OrderDateTime]) | Yes |
| GetDay(DateTime) | Extracts a day from the defined DateTime. | GetDay([OrderDate]) | Yes |
| GetDayOfWeek(DateTime) | Extracts a day of the week from the defined DateTime. | GetDayOfWeek([OrderDate]) | Yes |
| GetDayOfYear(DateTime) | Extracts a day of the year from the defined DateTime. | GetDayOfYear([OrderDate]) | Yes |
| GetHour(DateTime) | Extracts an hour from the defined DateTime. | GetHour([StartTime]) | Yes |
| GetMilliSecond(DateTime) | Extracts milliseconds from the defined DateTime. | GetMilliSecond([StartTime]) | - |
| GetMinute(DateTime) | Extracts minutes from the defined DateTime. | GetMinute([StartTime]) | Yes |
| GetMonth(DateTime) | Extracts a month from the defined DateTime. | GetMonth([StartTime]) | Yes |
| GetSecond(DateTime) | Extracts seconds from the defined DateTime. | GetSecond([StartTime]) | Yes |
| GetTimeOfDay(DateTime) | Extracts the time of the day from the defined DateTime in ticks. | GetTimeOfDay([StartTime]) | - |
| GetYear(DateTime) | Extracts a year from the defined DateTime. | GetYear([StartTime]) | Yes |
| IsApril(DateTime) | Returns True if the specified date falls within April. | IsApril([OrderDate]) | Yes |
| IsAugust(DateTime) | Returns True if the specified date falls within August. | IsAugust([OrderDate]) | Yes |
| IsDecember(DateTime) | Returns True if the specified date falls within December. | IsDecember([OrderDate]) | Yes |
| IsFebruary(DateTime) | Returns True if the specified date falls within February. | IsFebruary([OrderDate]) | Yes |
| IsJanuary(DateTime) | Returns True if the specified date falls within January. | IsJanuary([OrderDate]) | Yes |
| IsJuly(DateTime) | Returns True if the specified date falls within July. | IsJuly([OrderDate]) | Yes |
| IsJune(DateTime) | Returns True if the specified date falls within June. | IsJune([OrderDate]) | Yes |
| IsLastMonth(DateTime) | Returns True if the specified date falls within the previous month. | IsLastMonth([OrderDate]) | Yes |
| IsLastYear(DateTime) | Returns True if the specified date falls within the previous year. | IsLastYear([OrderDate]) | Yes |
| IsMarch(DateTime) | Returns True if the specified date falls within March. | IsMarch([OrderDate]) | Yes |
| IsMay(DateTime) | Returns True if the specified date falls within May. | IsMay([OrderDate]) | Yes |
| IsNextMonth(DateTime) | Returns True if the specified date falls within the next month. | IsNextMonth([OrderDate]) | Yes |
| IsNextYear(DateTime) | Returns True if the specified date falls within the next year. | IsNextYear([OrderDate]) | Yes |
| IsNovember(DateTime) | Returns True if the specified date falls within November. | IsNovember([OrderDate]) | Yes |
| IsOctober(DateTime) | Returns True if the specified date falls within October. | IsOctober([OrderDate]) | Yes |
| IsSameDay(DateTime) | Returns True if the specified date/time values fall within the same day. | IsSameDay([OrderDate]) | Yes |
| IsSeptember(DateTime) | Returns True if the specified date falls within September. | IsSeptember([OrderDate]) | Yes |
| IsThisMonth(DateTime) | Returns True if the specified date falls within the current month. | IsThisMonth([OrderDate]) | Yes |
| IsThisWeek(DateTime) | Returns True if the specified date falls within the current week. | IsThisWeek([OrderDate]) | Yes |
| IsYearToDate(DateTime) | Returns True if the specified date falls within the year-to-date period. This period starts from the first day of the current year and continues to the current date (including the current date). | IsYearToDate([OrderDate]) | Yes |
| IsThisYear(DateTime) | Returns True if the specified date falls within the current year. | IsThisYear([OrderDate]) | Yes |
| LocalDateTimeDayAfter Tomorrow() |
Returns a date-time value corresponding to the day after Tomorrow. |
AddDays(LocalDateTimeDayAfter Tomorrow(), 5) |
Yes |
| LocalDateTimeLastMonth() | Returns the DateTime value corresponding to the first day of the previous month. | AddMonths(LocalDateTimeLastMonth(), 5) | Yes |
| LocalDateTimeLastWeek() | Returns a date-time value corresponding to the first day of the previous week. | AddDays(LocalDateTimeLastWeek(), 5) | Yes |
| LocalDateTimeLastYear() | Returns the DateTime value corresponding to the first day of the previous year. | AddYears(LocalDateTimeLastYear(), 5) | Yes |
| LocalDateTimeNextMonth() | Returns a date-time value corresponding to the first day of the next month. | AddMonths(LocalDateTimeNextMonth(), 5) | Yes |
| LocalDateTimeNextWeek() | Returns a date-time value corresponding to the first day of the following week. | AddDays(LocalDateTimeNextWeek(), 5) | Yes |
| LocalDateTimeNextYear() | Returns a date-time value corresponding to the first day of the following year. | AddYears(LocalDateTimeNextYear(), 5) | Yes |
| LocalDateTimeNow() | Returns a date-time value corresponding to the current moment in time. | AddDays(LocalDateTimeNow(), 5) | Yes |
| LocalDateTimeThisMonth() | Returns a date-time value corresponding to the first day of the current month. | AddMonths(LocalDateTimeThisMonth(), 5) | Yes |
| LocalDateTimeThisWeek() | Returns a date-time value corresponding to the first day of the current week. | AddDays(LocalDateTimeThisWeek(), 5) | Yes |
| LocalDateTimeThisYear() | Returns a date-time value corresponding to the first day of the current year. | AddYears(LocalDateTimeThisYear(), 5) | Yes |
| LocalDateTimeToday() | Returns a date-time value corresponding to Today. | AddDays(LocalDateTimeToday(), 5) | Yes |
| LocalDateTimeTomorrow() | Returns a date-time value corresponding to Tomorrow. | AddDays(LocalDateTimeTomorrow(), 5) | Yes |
| LocalDateTimeTwoMonthsAway() | Returns the DateTime value corresponding to the first day of the following month. | AddMonths(LocalDateTimeTwoMonthAway(), 5) | Yes |
| LocalDateTimeTwoWeeksAway() | Returns the DateTime value corresponding to the first day of the following week. | AddDays(LocalDateTimeTwoWeeksAway(), 5) | Yes |
| LocalDateTimeTwoYearsAway() | Returns the DateTime value corresponding to the first day of the following year. | AddYears(LocalDateTimeTwoYearsAway(), 5) | Yes |
| LocalDateTimeYearBeforeToday() | Returns the DateTime value corresponding to the day one year ago. | AddYears(LocalDateTimeYearBeforeToday(), 5) | Yes |
| LocalDateTimeYesterday() | Returns a date-time value corresponding to Yesterday. | AddDays(LocalDateTimeYesterday(), 5) | Yes |
| Now() | Returns the current system date and time. | AddDays(Now(), 5) | Yes |
| Today() | Returns the current date. Regardless of the actual time, this function returns midnight of the current date. | AddMonths(Today(), 1) | Yes |
| UtcNow() | Returns the current system date and time, expressed as Coordinated Universal Time (UTC). | AddDays(UtcNow(), 7) | - |
Logical Functions
|
FUNCTIONS |
DESCRIPTION |
EXAMPLE |
XLS(x) FORMAT EXPORT-FRIENDLY |
|---|---|---|---|
| Iif(Expression1, True_Value1, ..., ExpressionN, True_ValueN, False_Value) |
Returns one of several specified values depending upon the values of logical expressions. The function can take 2N+1 arguments (N - the number of specified logical expressions):
|
Iif(Name = 'Bob', 1, 0) Iif(Name = 'Bob', 1, Name = 'Dan', 2, Name = 'Sam', 3, 0) |
Yes |
| IsNull(Value) | Returns True if the specified Value is NULL. | IsNull([OrderDate]) | Yes |
| IsNull(Value1, Value2) | Returns Value1 if it is not set to NULL; otherwise, Value2 is returned. | IsNull([ShipDate], [RequiredDate]) | - |
| IsNullOrEmpty(String) | Returns True if the specified String object is NULL or an empty string; otherwise, False is returned. | IsNullOrEmpty([ProductName]) | Yes |
Math Functions
|
FUNCTIONS |
DESCRIPTION |
EXAMPLE |
XLS(x) FORMAT EXPORT-FRIENDLY |
|---|---|---|---|
| Abs(Value) | Returns the given numeric expression's absolute, positive value. Abs(1 - [Discount]) | Abs(1 - [Discount]) | Yes |
| Acos(Value) | Returns a number's arccosine (the angle in radians, whose cosine is the given float expression). | Acos([Value]) | Yes |
| Asin(Value) | Returns a number's arcsine (the angle in radians, whose sine is the given float expression). Asin([Value]) | Asin([Value]) | Yes |
| Atn(Value) | Returns a number's arctangent (the angle in radians, whose tangent is the given float expression). | Atn([Value]) | Yes |
| Atn2(Value1, Value2) | Returns the angle whose tangent is the quotient of two specified numbers in radians. | Atn2([Value1], [Value2]) | Yes |
| BigMul(Value1, Value2) | Returns an Int64 containing the full product of two specified 32-bit numbers. | BigMul([Amount], [Quantity]) | - |
| Ceiling(Value) | Returns the smallest integer that is greater than or equal to the numeric expression. | Ceiling([Value]) | Yes |
| Cos(Value) | Returns the angle's cosine, in radians. | Cos([Value]) | Yes |
| Cosh(Value) | Returns the angle's hyperbolic cosine, in radians. | Cosh([Value]) | Yes |
| Exp(Value) | Returns the float expression's exponential value. | Exp([Value]) | Yes |
| Floor(Value) | Returns the largest integer less than or equal to the numeric expression. | Floor([Value]) | Yes |
| Log(Value) | Returns a specified number's natural logarithm. | Log([Value]) | Yes |
| Log(Value, Base) | Returns the logarithm of a specified number in a specified Base. | Log([Value], 2) | Yes |
| Log10(Value) | Returns a specified number's base 10 logarithm. | Log10([Value]) | Yes |
| Max(Value1, Value2) | Returns the maximum value from the specified values. | Max([Value1], [Value2]) | Yes |
| Min(Value1, Value2) | Returns the minimum value from the specified values. | Min([Value1], [Value2]) | Yes |
| Power(Value, Power) | Returns a specified number raised to a specified power. | Power([Value], 3) | Yes |
| Rnd() | Returns a random number that is less than 1, but greater than or equal to zero. | Rnd()*100 | Yes |
| Round(Value) | Rounds the given value to the nearest integer. | Round([Value]) | Yes |
| Round(Value, Precision) | Rounds the given value to the nearest integer, or to a specified number of decimal places. | Round([Value], 2) | Yes |
| Sign(Value) | Returns the positive (+1), zero (0), or negative (-1) sign of the given expression. | Sign([Value]) | Yes |
| Sin(Value) | Returns the sine of the angle defined in radians. | Sin([Value]) | Yes |
| Sinh(Value) | Sinh(Value) Returns the hyperbolic sine of the angle defined in radians. | Sinh([Value]) | Yes |
| Sqr(Value) | Returns the square root of a given number. | Sqr([Value]) | Yes |
| Tan(Value) | Returns the tangent of the angle defined in radians. | Tan([Value]) | Yes |
| Tanh(Value) | Returns the hyperbolic tangent of the angle defined in radians. | Tanh([Value]) | Yes |
| ToDecimal(Value) | Converts Value to an equivalent decimal number. | ToDecimal([Value]) | - |
| ToDouble(Value) | Converts Value to an equivalent 64-bit double-precision floating-point number. | ToDouble([Value]) | - |
| ToFloat(Value) | Converts Value to an equivalent 32-bit single-precision floating-point number. | ToFloat([Value]) | - |
| ToInt(Value) | Converts Value to an equivalent 32-bit signed integer. | ToInt([Value]) | - |
| ToLong(Value) | Converts Value to an equivalent 64-bit signed integer. | ToLong([Value]) | - |
String Functions
|
FUNCTIONS |
DESCRIPTION |
EXAMPLE |
XLS(x) FORMAT EXPORT-FRIENDLY |
|---|---|---|---|
| Ascii(String) | Returns the ASCII code value of the leftmost character in a character expression. | Ascii('a') | - |
| Char(Number) | Converts an integerASCIICode to a character. | Char(65) + Char(51) | Yes |
| CharIndex(String1, String2) | Returns the starting position of String1 within String2, beginning from the zero character position to the end of a string. | CharIndex('e', 'devexpress') | - |
| CharIndex(String1, String2, StartLocation) | Returns the starting position of String1 within String2, beginning from the StartLocation character position to the end of a string. | CharIndex('e', 'devexpress', 2) | - |
| Concat(String1, ... , StringN) | Returns a string value containing the concatenation of the current string with any additional strings. | Concat('A', ')', [ProductName]) | Yes |
| Contains(String1, SubString1) | Returns True if SubString1 occurs within String1; otherwise, False is returned. | Contains([ProductName], 'dairy') | Yes |
| EndsWith(String1, SubString1) | Returns True if the end of String1 matches SubString1; otherwise, False is returned. | EndsWith([Description], 'The end.') | Yes |
| Insert(String1, StartPosition, String2) | Inserts String2 into String1 at the position specified by StartPositon | Insert([Name], 0, 'ABC-') | - |
| Len(Value) | Returns an integer containing either the number of characters in a string or the nominal number of bytes required to store a variable. | Len([Description]) | Yes |
| Lower(String) | Returns String in lowercase. | Lower([ProductName]) | Yes |
| PadLeft(String, Length) | Left-aligns the defined string's characters, padding its left side with white space characters up to a specified total length. | PadLeft([Name], 30) | - |
| PadLeft(String, Length, Char) | PadLeft(String, Length, Char) Left-aligns the defined string's characters, padding its left side with the specified Char up to a specified total length. | PadLeft([Name], 30, '<') | - |
| PadRight(String, Length) | Right-aligns the defined string’s characters, padding its left side with empty space characters up to a specified total length. | PadRight([Name], 30) | - |
| PadRight(String, Length, Char) | Right-aligns the defined string’s characters, padding its left side with the specified Char up to a specified total length. | PadRight([Name], 30, '>') | - |
| Remove(String, StartPosition) | Deletes all the characters from this instance, beginning at a specified position. | Remove([Name], 3) | - |
| Remove(String, StartPosition, Length) | Deletes a specified number of characters from this instance, beginning at a specified position. | Remove([Name], 0, 3) | - |
| Replace(String1, SubString2, String3) | Returns a copy of String1, in which SubString2 has been replaced with String3. | Replace([Name], 'The ', '') | - |
| Reverse(String) | Reverses the order of elements within String. | Reverse([Name]) | - |
| StartsWith(String1, SubString1) | Returns True if the beginning of String1 matches SubString1; otherwise, False. | StartsWith([Title], 'The best') | Yes |
| Substring(String, StartPosition, Length) | Retrieves a substring from String. The substring starts at StartPosition and has a specified Length. | Substring([Description], 2, 3) | - |
| Substring(String, StartPosition) | Retrieves a substring from String. The substring starts at StartPosition. | Substring([Description], 2) | - |
| ToStr(Value) | Returns a string representation of an object. | ToStr([ID]) | - |
| Trim(String) | Removes all leading and trailing SPACE characters from String. | Trim([ProductName]) | Yes |
| Upper(String) | Returns String in uppercase. | Upper([ProductName]) | Yes |