FireDAC.Comp.DataSet.TFDDataSet.SourceView
| [–] Properties | |
|---|---|
| Type: property | |
| Visibility: public | |
| Source: FireDAC.Comp.DataSet.pas FireDAC.Comp.DataSet.hpp
| |
| Unit: FireDAC.Comp.DataSet | |
| Parent: TFDDataSet | |
Delphi
property SourceView: TFDDatSView read FSourceView;
C++
__property Firedac::Dats::TFDDatSView* SourceView = {read=FSourceView};
Description
Specifies the reference to the DatS view object whose rows the dataset is navigating.
The SourceView property returns a reference to the TFDDatSView object whose rows the dataset is navigating. The view is automatically built by FireDAC as a result of applying filters, indexes, and ranges.
The view is destroyed after the dataset is closed.
Example
var
i, iVal, iMax: Integer;
....
// searching the maximum value of ID integer field, without navigating through dataset
iMax := 0;
for i := 0 to FDQuery1.SourceView.Rows.Count - 1 do
if FDQuery1.SourceView.Rows[i].GetData('id', @iVal) and (iVal > iMax) then
iMax := iVal;