Functions Reference
Table Of Contents
- Contents
- Functions reference (alphabetical list)
- About functions
- Aggregate functions
- Container functions
- Date functions
- Design functions
- External functions
- Financial functions
- Get functions
- Get(AccountExtendedPrivileges)
- Get(AccountName)
- Get(AccountPrivilegeSetName)
- Get(ActiveFieldContents)
- Get(ActiveFieldName)
- Get(ActiveFieldTableName)
- Get(ActiveLayoutObjectName)
- Get(ActiveModifierKeys)
- Get(ActivePortalRowNumber)
- Get(ActiveRepetitionNumber)
- Get(ActiveSelectionSize)
- Get(ActiveSelectionStart)
- Get(AllowAbortState)
- Get(AllowFormattingBarState)
- Get(ApplicationLanguage)
- Get(ApplicationVersion)
- Get(CalculationRepetitionNumber)
- Get(ConnectionAttributes)
- Get(ConnectionState)
- Get(CurrentDate)
- Get(CurrentExtendedPrivileges)
- Get(CurrentHostTimestamp)
- Get(CurrentPrivilegeSetName)
- Get(CurrentTime)
- Get(CurrentTimestamp)
- Get(CurrentTimeUTCMilliseconds)
- Get(CustomMenuSetName)
- Get(DesktopPath)
- Get(Device)
- Get(DocumentsPath)
- Get(DocumentsPathListing)
- Get(EncryptionState)
- Get(ErrorCaptureState)
- Get(FileMakerPath)
- Get(FileName)
- Get(FilePath)
- Get(FileSize)
- Get(FoundCount)
- Get(HighContrastColor)
- Get(HighContrastState)
- Get(HostApplicationVersion)
- Get(HostIPAddress)
- Get(HostName)
- Get(InstalledFMPlugins)
- Get(LastError)
- Get(LastMessageChoice)
- Get(LastODBCError)
- Get(LayoutAccess)
- Get(LayoutCount)
- Get(LayoutName)
- Get(LayoutNumber)
- Get(LayoutTableName)
- Get(LayoutViewState)
- Get(ModifiedFields)
- Get(MultiUserState)
- Get(NetworkProtocol)
- Get(NetworkType)
- Get(PageNumber)
- Get(PersistentID)
- Get(PreferencesPath)
- Get(PrinterName)
- Get(QuickFindText)
- Get(RecordAccess)
- Get(RecordID)
- Get(RecordModificationCount)
- Get(RecordNumber)
- Get(RecordOpenCount)
- Get(RecordOpenState)
- Get(RequestCount)
- Get(RequestOmitState)
- Get(ScreenDepth)
- Get(ScreenHeight)
- Get(ScreenWidth)
- Get(ScriptAnimationState)
- Get(ScriptName)
- Get(ScriptParameter)
- Get(ScriptResult)
- Get(SortState)
- Get(StatusAreaState)
- Get(SystemDrive)
- Get(SystemIPAddress)
- Get(SystemLanguage)
- Get(SystemNICAddress)
- Get(SystemPlatform)
- Get(SystemVersion)
- Get(TemporaryPath)
- Get(TextRulerVisible)
- Get(TotalRecordCount)
- Get(TriggerCurrentPanel)
- Get(TriggerGestureInfo)
- Get(TriggerKeystroke)
- Get(TriggerModifierKeys)
- Get(TriggerTargetPanel)
- Get(UserCount)
- Get(UserName)
- Get(UseSystemFormatsState)
- Get(UUID)
- Get(WindowContentHeight)
- Get(WindowContentWidth)
- Get(WindowDesktopHeight)
- Get(WindowDesktopWidth)
- Get(WindowHeight)
- Get(WindowLeft)
- Get(WindowMode)
- Get(WindowName)
- Get(WindowOrientation)
- Get(WindowStyle)
- Get(WindowTop)
- Get(WindowVisible)
- Get(WindowWidth)
- Get(WindowZoomLevel)
- Logical functions
- Mobile functions
- Number functions
- Repeating functions
- Summary functions
- Text functions
- Char
- Code
- Exact
- Filter
- FilterValues
- GetAsCSS
- GetAsDate
- GetAsNumber
- GetAsSVG
- GetAsText
- GetAsTime
- GetAsTimestamp
- GetAsURLEncoded
- GetValue
- Hiragana
- KanaHankaku
- KanaZenkaku
- KanjiNumeral
- Katakana
- Left
- LeftValues
- LeftWords
- Length
- Lower
- Middle
- MiddleValues
- MiddleWords
- NumToJText
- PatternCount
- Position
- Proper
- Quote
- Replace
- Right
- RightValues
- RightWords
- RomanHankaku
- RomanZenkaku
- SerialIncrement
- Substitute
- Trim
- TrimAll
- Upper
- ValueCount
- WordCount
- Text formatting functions
- Time functions
- Timestamp functions
- Trigonometric functions
- Glossary
Logical functions
F
ILEMAKER FUNCTIONS REFERENCE 233
IsValidExpression
Purpose
Returns 1 (True) if expression syntax is correct. Returns 0 (False) if expression has a syntax
error.
Format
IsValidExpression(expression)
Parameters
expression - any calculation expression
Data type returned
number
Originated in
FileMaker Pro 7.0
Examples
IsValidExpression(calculationField) returns 1 (true) if calculationField contains
total + 1.
IsValidExpression(calculationField) returns 0 (false) if calculationField contains
abs(-1 with no closing parenthesis.