home *** CD-ROM | disk | FTP | other *** search
- unit ClntFrm;
-
- {
- This is the client side of the Briefcase demo. The Connected checkbox shows
- if the server is connected or not. Notice that the FileName property of the
- ClientDataSet is set. This causes the ClientDataSet to load from the file
- when it is opened and save to the file when it is closed. It also has the
- ProviderName property set. This allows it to ApplyUpdates and retrieve data
- if the file does not exist.
- }
-
- interface
-
- uses
- Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
- DBClient, MConnect, StdCtrls, Db, Grids, DBGrids, ActnList, ExtCtrls;
-
- type
- TForm1 = class(TForm)
- DCOMConnection1: TDCOMConnection;
- ClientDataSet1: TClientDataSet;
- DBGrid1: TDBGrid;
- DataSource1: TDataSource;
- Button1: TButton;
- CheckBox1: TCheckBox;
- ActionList1: TActionList;
- Action1: TAction;
- Action2: TAction;
- procedure Action1Update(Sender: TObject);
- procedure Action2Execute(Sender: TObject);
- procedure Action2Update(Sender: TObject);
- procedure ClientDataSet1ReconcileError(DataSet: TClientDataSet;
- E: EReconcileError; UpdateKind: TUpdateKind;
- var Action: TReconcileAction);
- procedure Action1Execute(Sender: TObject);
- private
- { Private declarations }
- public
- { Public declarations }
- end;
-
- var
- Form1: TForm1;
-
- implementation
-
- uses RecError;
-
- {$R *.DFM}
-
- procedure TForm1.Action1Update(Sender: TObject);
- begin
- Action1.Checked := DCOMConnection1.Connected;
- end;
-
- procedure TForm1.Action1Execute(Sender: TObject);
- begin
- DCOMConnection1.Connected := not Action1.Checked;
- end;
-
- procedure TForm1.Action2Update(Sender: TObject);
- begin
- Action2.Enabled := ClientDataSet1.ChangeCount > 0;
- end;
-
- procedure TForm1.Action2Execute(Sender: TObject);
- begin
- ClientDataSet1.ApplyUpdates(-1);
- end;
-
- procedure TForm1.ClientDataSet1ReconcileError(DataSet: TClientDataSet;
- E: EReconcileError; UpdateKind: TUpdateKind;
- var Action: TReconcileAction);
- begin
- Action := HandleReconcileError(DataSet, UpdateKind, E);
- end;
-
- end.
-