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api:dk11:delphi:gisinternals.joinfieldtype_tfield_tgis_fieldtype

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JoinFieldType(TField; TGIS_FieldType) method

DK11 for Delphi | GisInternals.JoinFieldType | Overloads | Enums | Fields | Methods | Types

Verify if a field can be used in queries and returns a layer type that can represent it.

Syntax

// Delphi
function JoinFieldType(
  const _source : TField;
  var _subtype : TGIS_FieldType
) : Boolean; overload;
// C++ Builder
extern DELPHI_PACKAGE bool JoinFieldType(
  TField* const _source,
  TGIS_FieldType* &_subtype
) /* overload */;

Parameters

Name Type Description
_source TField field to be verified
_subtype TGIS_FieldType field type to which source field will be converted

Result

Type Description
Boolean True if field is supported.
2019/08/28 01:06