TRVReportDBMemDataProvider

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This is an ancestor class for data providers using simple in-memory datasets.

Unit RVReportMemDataProvider;

Syntax

TRVReportDBMemDataProvider = class (TRVReportDBDataProvider)

hmtoggle_arrow1Hierarchy

Description

This class is not used directly. The following components are inherited from this class:

TRVReportDxMemDataProvider.

This data provider extends syntax of data queries implemented by TRVReportDBDataProvider.

This data provider handles the following data queries:

dataset name (must be equal to one of DataSets[].Name)

queries of the following syntax:

DataSetName, Field1 = Value1, Field2 = Value2, ...

where

DataSetName is one of DataSets[].Name, identifies a dataset;

Field1, Field2, ... are fields of this dataset;

Value1, Value2, ... are required values of the corresponding fields.

The following types of values are supported:

integer numbers;

floating point numbers (using '.' as a decimal separator);

true;

false;

strings (enclosed in single quotes; to include a single quote in the string, duplicate it).

The result of this query: all records of the specified dataset matched all the specified conditions.

See also

Definitions of Report Workshop terms

Data queries


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