Skip to main content

DevExpress v24.2 Update — Your Feedback Matters

Our What's New in v24.2 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release.

Take the survey Not interested

TdxCustomMemData.ProgrammedFilter Property

Specifies the active data filtering mode.

#Declaration

Delphi
property ProgrammedFilter: Boolean read; write;

#Property Value

Type Description
Boolean
  • If False (default), you can handle the OnFilterRecord event to implement a custom data filtering algorithm.
  • If True, you can use the FilterList property to populate the list of filtered dataset records based on custom criteria. The OnFilterRecord event does not occur in this mode.

#Remarks

You can set the ProgrammedFilter property to True to populate the list of filtered records accessible through the FilterList property.

#Code Example: Populate Filtered Record Lists

The following code example populates the list of filtered records accessible through the FilterList property:

var
  AGroupIDField: TField;
begin
  dxMemData1.ProgrammedFilter := True;
  AGroupIDField := dxMemData1.FieldByName('GroupID');
  while not dxMemData1.Eof do
  begin
    if AGroupIDField.AsInteger = 1 then
      dxMemData1.FilterList.Add(dxMemData1.RecNo);
    dxMemData1.Next;
  end;
  dxMemData1.Filtered := True;
end;

#Default Value

The ProgrammedFilter property’s default value is False.

See Also