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Home: Code Repository: Mastering Delphi 6

Chapter 23 - Project SoapDataClient

Project Structure

SoapDataClient.dpr
program SoapDataClient;

uses
  Forms,
  SoapDataForm in 'SoapDataForm.pas' {FormSDC},
  SoapServerIntf in 'SoapServerIntf.pas';

{$R *.res}

begin
  Application.Initialize;
  Application.CreateForm(TFormSDC, FormSDC);
  Application.Run;
end.
SoapDataForm.pas
unit SoapDataForm;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, DB, DBClient, SoapConn, Grids, DBGrids, StdCtrls, SoapServerIntf,
  Rio, SoapHTTPClient;

type
  TFormSDC = class(TForm)
    SoapConnection1: TSoapConnection;
    ClientDataSet1: TClientDataSet;
    DBGrid1: TDBGrid;
    DataSource1: TDataSource;
    Button1: TButton;
    Button2: TButton;
    HTTPRIO1: THTTPRIO;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  FormSDC: TFormSDC;

implementation

{$R *.dfm}

procedure TFormSDC.Button1Click(Sender: TObject);
begin
  ClientDataSet1.Open;
end;

procedure TFormSDC.Button2Click(Sender: TObject);
begin
  ClientDataSet1.ApplyUpdates (-1);
end;

procedure TFormSDC.Button3Click(Sender: TObject);
var
  ISoapData: ISoapTestDm;
begin
  // CURRENTLY DOESN'T WORK!
  ISoapData := HttpRio1 as ISoapTestDm;
  ShowMessage (IntToStr (ISoapData.GetRecordCount));
end;

end.
SoapServerIntf.pas
unit SoapServerIntf;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, DB, DBClient, SoapConn, Grids, DBGrids, StdCtrls,
  Rio, SoapHTTPClient, Midas, InvokeRegistry;

type
  ISoapTestDm = interface(IAppServer)
    ['{1F109687-6D8B-4F85-9BF5-EFFC87A9F10F}']
    function GetRecordCount: Integer;
  end;

implementation

initialization
  InvRegistry.RegisterInterface(TypeInfo(ISoapTestDm));

end.
SoapDataForm.dfm
object FormSDC: TFormSDC
  Left = 457
  Top = 113
  Width = 480
  Height = 252
  Caption = 'SoapDataClient'
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'MS Sans Serif'
  Font.Style = []
  OldCreateOrder = False
  PixelsPerInch = 96
  TextHeight = 13
  object DBGrid1: TDBGrid
    Left = 8
    Top = 40
    Width = 457
    Height = 177
    DataSource = DataSource1
    TabOrder = 0
    TitleFont.Charset = DEFAULT_CHARSET
    TitleFont.Color = clWindowText
    TitleFont.Height = -11
    TitleFont.Name = 'MS Sans Serif'
    TitleFont.Style = []
  end
  object Button1: TButton
    Left = 88
    Top = 8
    Width = 75
    Height = 25
    Caption = 'Open'
    TabOrder = 1
    OnClick = Button1Click
  end
  object Button2: TButton
    Left = 168
    Top = 8
    Width = 75
    Height = 25
    Caption = 'Do Update'
    TabOrder = 2
    OnClick = Button2Click
  end
  object Button3: TButton
    Left = 8
    Top = 8
    Width = 75
    Height = 25
    Caption = 'Count'
    Enabled = False
    TabOrder = 3
    OnClick = Button3Click
  end
  object SoapConnection1: TSoapConnection
    URL =
       'http://localhost:1024/SoapDataServer.SoapDataServer/Soap/ISoapTe' +
      'stDm'
    Left = 56
    Top = 24
  end
  object ClientDataSet1: TClientDataSet
    Aggregates = <>
    Params = <>
    ProviderName = 'DataSetProvider1'
    RemoteServer = SoapConnection1
    Left = 152
    Top = 24
  end
  object DataSource1: TDataSource
    DataSet = ClientDataSet1
    Left = 240
    Top = 24
  end
  object HTTPRIO1: THTTPRIO
    URL =
       'http://localhost:1024/SoapDataServer.SoapDataServer/Soap/ISoapTe' +
      'stDm'
    HTTPWebNode.Agent = 'Borland SOAP 1.1'
    HTTPWebNode.UseUTF8InHeader = False
    Converter.Options = [soSendMultiRefObj, soTryAllSchema]
    Left = 56
    Top = 88
  end
end