TTMSFNCDataGridFormatRuleItem.EffectiveExpression Method

The expression as evaluated. An expression that names no column with [ ] is applied to this rule's own Column, so a bare condition such as =M* or >1000 works the way a filter condition does.

API unit family: TMSFNCDataGridConditionalFormatting Declaring type: TTMSFNCDataGridFormatRuleItem

Syntax

FMX.TMSFNCDataGridConditionalFormatting.hppPascalC++

function EffectiveExpression(const AProvider: ITMSFNCDataGridFormatProvider): string;

System::UnicodeString __fastcall EffectiveExpression(const _di_ITMSFNCDataGridFormatProvider AProvider);

Remarks

Expression is returned unchanged when it is empty, contains [, or is nil. Otherwise a leading <>, >=, <=, =, > or < is taken as the operator (no operator means =), the rest as the value, and the condition is rendered through ITMSFNCDataGridFormatProvider.BuildExpressionText against the column's data name, falling back to the column index when the column has no name. Because a bare condition binds to Column, set Column explicitly on an expression rule, which defaults to column 0.

Parameters

Name	Description
AProvider	Grid the rule belongs to, used to name the column.

Returns

Expression the filter engine is given.