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Asked: 2026-05-11T13:55:46+00:00

In this question my objective is to retrieve a database table content. populate dbGrid,

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In this question my objective is to retrieve a database table content. populate dbGrid, close connection. If I use the following code, dbgrid or combobox are going to loose the information.

adoQry := TADOQuery.Create(self); adoQry.Connection := adoConn; adoQry.SQL.Add(SqlStr); adoQry.Prepared := true;  try   adoQry.Active := True; except   on e: EADOError do  begin    MessageDlg('Error while doing query', mtError,               [mbOK], 0);     Exit;  end; end; for i := 0 to adoQry.RecordCount - 1 do begin   cmbCnty.Items.Add(adoQry.Fields[1].AsString);    adoQry.Next end;  FreeAndNil(adoConn); FreeAndNil(adoQry);

In case dbGrid, I use StringGrid and it works for me. However, sometimes I would like to use dbGrid, but not sure how to keep a content with the close connection to the database (after retrieving the content, of course) Any suggestions, examples would appreciated.
Chris

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1 Answer

  1. You can populate a TClientDataSet with your Query ResultSet, and then link the TClientDataSet to the TDBGrid.

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