Field-Map Scripting

4.2.3.7 PreviousValue

PreviousValue property


Prototype:

property PreviousValue[const Name: string]: variant;

Description:

In on-validate scripts, returns the original attribute value

Syntax:


variable := Layer.PreviousValue[AttributeName];



Part

Description


variable

A variable declared as a variant


Layer

A reference to a Field-Map layer as defined in Field-Map Project Manager


AttributeName

A reference to a Field-Map attribute as defined in Field-Map Project Manager

Return value:

original attribute value



See also:

Value; ValueAsString; ValueAsinteger; ValueAsFloat; ValueAsboolean; OldValue; PreviousValue; BOF; EOF; RecordCount; State; SetValues; SetValuesFromXML; CrownProjection; CrownProfile; CrownProfilePoints; StemProfile; OldLayer; SavePosition; RestorePosition; SaveState; RestoreState; SavePositionAndState; RestorePositionAndState; Open; Close; First; Last; Next; Prior; Edit; Post; Append; Delete; Cancel; Refresh; Locate; ClearTable; Filter; Filtered; CheckFilter; SetFilterExt; ClearFilterForChildLayers; DeepFilter; EnableCachedUpdates; ApplyUpdates; GetAttributeValue; GetQueryResult; DeleteFrom; Update; CreateMemTable; SaveToDBF; SaveToExcel; GetMinOfAttributeValues; GetMaxOfAttributeValues; GetMeanOfAttributeValues; GetSumOfAttributeValues; GetRecordCount; GetLookupTable; GetLookupListValue; GetLookupListAttributeValue; GetID; GetIdAttributeName; GetIdSQL; SaveTimeStamp; File2Blob; Blob2Folder; String2Blob; Blob2String; FillAttributeValues; MarkValuesAsConditional;GetListOfChildLayers; GetPercentageOfFilledAttributes4Record; GetPercentageOfFilledAttributes4Layer; RoundAttributeValues