SalString

Namespace: PPJ.Runtime

Assembly: PPJ.Web.49 (4.9.0.0)

SAL String basic type. It wraps .NET String class. SalString objects are automatically cast to and from .NET String type.

C#

public class SalString : IComparable, IConvertible, IFormattable, INullable, ISalType, IXmlSerializable, IWisejSerializable

VB.NET

Public Class SalString
    Inherits IComparable
    Implements IConvertible, IFormattable, INullable, ISalType, IXmlSerializable, IWisejSerializable

Constructors

SalString()

Constructs a new SalString object containing an empty string.

SalString(x)

Constructs a new SalString object.

Name	Type	Description
x	String

SalString(chars)

Constructs a new SalString object.

Name	Type	Description
chars	Char[]

SalString(chars, index, length)

Constructs a new SalString object.

Name	Type	Description
chars	Char[]
index	Int32
length	Int32

SalString(blob)

Constructs a new SalString object.

Name	Type	Description
blob	Byte[]

SalString(blob, index, length)

Constructs a new SalString object.

Name	Type	Description
blob	Byte[]
index	Int32
length	Int32

Fields

Name	Type	Description
Empty	SalString	empty value
Null	SalString	null value
NullBlob	SalString	null value for blobs

Properties

IsBlob

Boolean: Blob flag.

IsEmpty

Boolean: Checks if this SalString object contains a null value or is empty.

IsNull

Boolean: Checks if this SalString object contains a null value.

Item(index)

Char: Character indexer

Length

SalNumber: Returns the string's length up to the terminator char.

Value

String: Returns the inner string value

Methods

Clone()

Returns a copy of this string.

Returns: SalString.

Compare(x, y)

Compares two strings lexicographically to match SAL comparison rules. SAL apparently uses _xcmp().

Parameter	Type	Description
x	SalString
y	SalString

Returns: Int32.

CompareTo(obj)

Compare to an object

Parameter	Type	Description
obj	Object

Returns: Int32.

CompareTo(x)

Compare to a SalString

Parameter	Type	Description
x	SalString

Returns: Int32.

Compress()

Compresses the string.

Returns: SalString.

Compress(sRet)

Parameter	Type	Description
sRet	SalString&

Returns: Boolean.

Concat(x, y)

• operator for concatenating two SalString objects.

Parameter	Type	Description
x	SalString
y	SalString

Returns: SalString.

FirstChar(target, charCode)

Parameter	Type	Description
target	SalString&
charCode	SalNumber&

Returns: Boolean.

FreeHandle(handle)

Frees a string handle created using SalHStringTonumber.

Parameter	Type	Description
handle	IntPtr	String handle to release.

FromHandle(handle, free)

Converts a number (string handle) to a string.

Parameter	Type	Description
handle	IntPtr	The handle to convert back to a string.
free	Boolean	Indicates that the handle should be released. The default is false.

Returns: SalString.

FromHandleOnce(handle)

Converts a number (string handle) to a string and releases the handle immediately.

Parameter	Type	Description
handle	IntPtr	The handle to convert back to a string.

Returns: SalString.

FromHex(hex)

Decodes a hexadecimal string into a string.

Parameter	Type	Description
hex	String

Returns: SalString.

GetBlob()

Returns the string content as an array of bytes.

Returns: Byte[].

GetBufferLength()

Returns the current buffer length of the string.

Returns: SalNumber. nLength

IsValidCurrency(precision, scale)

Verifies that an entire character string represents a valid currency value.

Parameter	Type	Description
precision	Int32
scale	Int32

Returns: Boolean.

IsValidCurrency(precision, scale, provider)

Verifies that an entire character string represents a valid currency value.

Parameter	Type	Description
precision	Int32
scale	Int32
provider	IFormatProvider

Returns: Boolean.

IsValidCurrency(precision, scale, format, provider)

Verifies that an entire character string represents a valid currency value.

Parameter	Type	Description
precision	Int32
scale	Int32
format	String
provider	IFormatProvider

Returns: Boolean.

IsValidDateTime()

Verifies that an entire character string represents a valid date/time value.

Returns: Boolean.

IsValidDateTime(provider)

Verifies that an entire character string represents a valid date/time value.

Parameter	Type	Description
provider	IFormatProvider

Returns: Boolean.

IsValidDateTime(format, provider)

Verifies that an entire character string represents a valid date/time value.

Parameter	Type	Description
format	String
provider	IFormatProvider

Returns: Boolean.

IsValidDecimal(precision, scale)

Verifies that an entire character string represents a valid decimal value.

Parameter	Type	Description
precision	Int32	The number of digits to display.
scale	Int32	The number of digits to the right of the decimal point.

Returns: Boolean. bOk

IsValidDecimal(precision, scale, provider)

Verifies that an entire character string represents a valid decimal value.

Parameter	Type	Description
precision	Int32	The number of digits to display.
scale	Int32	The number of digits to the right of the decimal point.
provider	IFormatProvider

Returns: Boolean. bOk

IsValidDecimal(precision, scale, format, provider)

Verifies that an entire character string represents a valid decimal value.

Parameter	Type	Description
precision	Int32	The number of digits to display.
scale	Int32	The number of digits to the right of the decimal point.
format	String
provider	IFormatProvider

Returns: Boolean. bOk

IsValidIdentifierName()

Returns TRUE if the string is a valid identifier.

Returns: Boolean.

IsValidInteger()

Verifies that an entire character string represents a valid integer value.

Returns: Boolean.

IsValidInteger(format)

Verifies that an entire character string represents a valid integer value.

Parameter	Type	Description
format	String

Returns: Boolean.

IsValidNumber()

Verifies that an entire character string represents a valid number value.

Returns: Boolean. bOk

IsValidNumber(provider)

Verifies that an entire character string represents a valid number value.

Parameter	Type	Description
provider	IFormatProvider

Returns: Boolean.

IsValidNumber(format, provider)

Verifies that an entire character string represents a valid number value.

Parameter	Type	Description
format	String
provider	IFormatProvider

Returns: Boolean.

Left(length)

Returns a substring of a specified length starting at position zero.

Parameter	Type	Description
length	Int32

Returns: SalString.

Left(length, target)

Parameter	Type	Description
length	Int32
target	SalString&

Returns: SalNumber.

Lop(target)

Parameter	Type	Description
target	SalString&

Returns: SalNumber.

Mid(pos, length)

Returns a substring, starting at a specified position and containing a specified number of characters.

Parameter	Type	Description
pos	Int32
length	Int32

Returns: SalString.

Mid(pos, length, target)

Parameter	Type	Description
pos	Int32
length	Int32
target	SalString&

Returns: SalNumber.

Repeat(times)

Concatenates a string with itself a specified number of times.

Parameter	Type	Description
times	Int32

Returns: SalString.

Repeat(times, target)

Parameter	Type	Description
times	Int32
target	SalString&

Returns: SalNumber.

Replace(startPos, length, replace)

Replaces characters in one string with characters from another string.

Parameter	Type	Description
startPos	Int32
length	Int32
replace	String

Returns: SalString.

Replace(startPos, length, replace, target)

Parameter	Type	Description
startPos	Int32
length	Int32
replace	String
target	SalString&

Returns: SalNumber.

Right(length)

Returns a string of specified length, starting with the last character in the string.

Parameter	Type	Description
length	Int32

Returns: SalString.

Right(length, target)

Parameter	Type	Description
length	Int32
target	SalString&

Returns: SalNumber.

Scan(pattern)

Searches for and returns the offset of a specified substring. Uses wild card chars: % and _

Parameter	Type	Description
pattern	String

Returns: SalNumber.

SetBufferLength(length)

Sets the buffer string length to the length.

Parameter	Type	Description
length	Int32

Returns: SalString.

SetBufferLength(target, length)

Parameter	Type	Description
target	SalString&
length	Int32

Returns: Boolean.

ToDate()

Converts a string to a date/time value.

Returns: SalDateTime.

ToDate(format)

Converts a string to a date/time value.

Parameter	Type	Description
format	String

Returns: SalDateTime.

ToDate(format, provider)

Converts a string to a date/time value.

Parameter	Type	Description
format	String
provider	IFormatProvider

Returns: SalDateTime.

ToHandle()

Converts a string to a number (handle) so it can be passed in a message using SalHStringTonumber. The handle is created using a GCHandle reference to this string. Therefore once the strong reference is created, this string will never be garbage collected until the application exits.

Returns: IntPtr.

ToHex()

Encodes the string buffer to a hexadecimal string.

Returns: String.

Tokenize(startDel, endDel)

Parses a string into substrings (tokens) based on specified start and end delimiters.

Parameter	Type	Description
startDel	String
endDel	String

Returns: SalArray<SalString>.

Tokenize(startDel, endDel, target)

Parses a string into substrings (tokens) based on specified start and end delimiters.

Parameter	Type	Description
startDel	String
endDel	String
target	SalArray<SalString>

Returns: SalNumber.

ToLower()

Converts a string to lowercase.

Returns: SalString.

ToLower(target)

Parameter	Type	Description
target	SalString&

Returns: SalNumber.

ToNumber()

Converts a string to a number.

Returns: SalNumber.

ToNumber(format)

Converts a string to a number.

Parameter	Type	Description
format	String

Returns: SalNumber.

ToNumber(format, provider)

Converts a string to a number.

Parameter	Type	Description
format	String
provider	IFormatProvider

Returns: SalNumber.

ToProper()

Converts a string to a proper name. In a proper name, the first letter of each word is uppercase; the remaining letters are lowercase.

Returns: SalString.

ToProper(target)

Parameter	Type	Description
target	SalString&

Returns: SalNumber.

ToUpper()

Converts a string to uppercase.

Returns: SalString.

ToUpper(target)

Parameter	Type	Description
target	SalString&

Returns: SalNumber.

Trim()

Strips leading and trailing blanks and compresses multiple spaces and tabs within a string to single spaces.

Returns: SalString.

Trim(target)

Parameter	Type	Description
target	SalString&

Returns: SalNumber.

Uncompress()

Decompresses the string.

Returns: SalString.

Uncompress(target)

Parameter	Type	Description
target	SalString&

Returns: Boolean.

Inherited By

Name	Description
SalStringContext	Special SalString extension to support SalContextCurrent().

Implements

Name	Description
ISalType	Common base interface for Sal types.