Using LIKE statement for filtering

Question

Im using this code to filter my table:

Table.Filtered := False;
Table.Filter := \'[\' + Field_Search + \'] LIKE \'\'%\' + Edit_Search.Text + \'%\'\'\';
Tabl         


        

Answer 1

A TTable.Filter isn't a SQL query. LIKE isn't supported (neither is IN). The supported operators are =, <>, >, <, >=, '<=,AND,NOTandOR`, according to the documentation

For more complicated filtering, use the TDataSet.OnFilterRecord event:

procedure TForm1.Table1FilterRecord(Dataset: TDataset; var Accept: Boolean);
begin
  // Don't remember if D7 supports DataSet[FieldName] syntax; if not,
  // use DataSet.FieldByName instead, or a persistent field.
  Accept := Pos(Edit_Search.Text, DataSet[SearchField].AsString) > 0;
end;