[Overview][Constants][Classes][Index] Reference for unit 'memds' (#fcl)

MDSError

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

Exception raised for errors when reading or writing an in-memory dataset

Declaration

Source position: memds.pp line 47

type MDSError = class(Exception)

Inheritance

MDSError

  

Exception raised for errors when reading or writing an in-memory dataset

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Exception

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TObject

Description

MDSError is an Exception type raised when an error occurs while reading or writing values for an in-memory dataset. MDSError is raised in the TMemDataset.RaiseError method and uses messages defined in resource strings in the implementation for the unit, including:

An MDSError exception will be raised when a field definition uses a data type not supported in TMemDataset. The exception will be raised for the following field types:

See also

TMemDataset.RaiseError

  

Raises an exception for an invalid operation in the in-memory dataset

TMemDataset.FieldDefs

  

Definitions of available fields in the underlying database

TField.FieldType


Documentation generated on: Jun 22 2020