uafrmerrorhandler.pas

基于Midas 技术的多层应用开发包第二版（带开发文档）

unit uaFrmErrorHandler;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, Buttons, StdCtrls,UAUnits,UADataPacket;

type

  TFrmErrorHandler = class(TForm)
    P_Title: TPanel;
    Splitter1: TSplitter;
    P_Detail: TPanel;
    sbtn_Ignore: TSpeedButton;
    sbtn_Abort: TSpeedButton;
    Label1: TLabel;
    Label2: TLabel;
    sbtn_Before: TSpeedButton;
    sbtn_Next: TSpeedButton;
    Mm_ErrorDesc: TMemo;
    edt_ServerError: TEdit;
    edt_UAErrorCode: TEdit;
    edt_UAErrorOBj: TEdit;
    sbtn_Send: TSpeedButton;
    sbtn_Details: TSpeedButton;
    Image1: TImage;
    lb_Msg: TLabel;
    procedure FormActivate(Sender: TObject);
    procedure sbtn_DetailsClick(Sender: TObject);
    procedure sbtn_AbortClick(Sender: TObject);
    procedure sbtn_SendClick(Sender: TObject);
    procedure sbtn_IgnoreClick(Sender: TObject);
    procedure sbtn_NextClick(Sender: TObject);
    procedure sbtn_BeforeClick(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
    OriginalHeight: Integer;
  protected

    FUAErrors:TList;
    FErrorParam:TErrorParam;
    FUAErrorProcType:TUAErrorProcType;

    procedure ChangeDetail(bVisible:Boolean);
    procedure DisplayErrorMsg;

  public
    { Public declarations }
    procedure InitErrors(UAErrors:TList);
    property  UAErrorProcType:TUAErrorProcType read FUAErrorProcType;

  end;

var
  FrmErrorHandler: TFrmErrorHandler;

implementation

{$R *.dfm}


procedure TFrmErrorHandler.ChangeDetail(bVisible: Boolean);
begin

  with P_Detail do
  begin
    Visible := not Visible;
    if Visible then
    begin
      Self.Height := Self.Height + OriginalHeight;
      sbtn_Details.Caption := '<< &Details';
    end
    else
    begin
      Self.Height := Self.Height - OriginalHeight;
      sbtn_Details.Caption := '&Details >>';
    end
  end;

end;


procedure TFrmErrorHandler.DisplayErrorMsg;
begin

  if Assigned(FErrorParam) then
  begin
    edt_ServerError.Text := '';
    edt_UAErrorCode.Text := '';
    Mm_ErrorDesc.Lines.Clear;
    edt_UAErrorOBj.Text := '';
    /// - ----To Display All
    edt_UAErrorCode.Text := IntToStr(FErrorParam.ErrorCode);
//    Mm_ErrorDesc.Lines.Add(FErrorParam.ErrorMsg);
    Mm_ErrorDesc.Lines.Add(FErrorParam.ErrorContext);
    edt_ServerError.Text := FErrorParam.ErrorMsg;
    edt_UAErrorOBj.Text := IntToStr(FErrorParam.ErrorMask);
  end;


end;

procedure TFrmErrorHandler.FormActivate(Sender: TObject);
begin

  Caption := 'UA Error';

//  Image1.Picture.Icon.Handle := LoadIcon(0,IDI_WINLOGO);
  OriginalHeight := Height-(ClientHeight-P_Detail.Top);

  ChangeDetail(true);
  sbtn_Before.Enabled := false;

end;

procedure TFrmErrorHandler.InitErrors(UAErrors:TList);
begin

  FUAErrors := UAErrors;

  if FUAErrors.Count <> 0 then
    FErrorParam := TErrorParam(FUAErrors.First);
  DisplayErrorMsg;

end;

procedure TFrmErrorHandler.sbtn_DetailsClick(Sender: TObject);
begin
  ChangeDetail(true);
end;

procedure TFrmErrorHandler.sbtn_AbortClick(Sender: TObject);
begin

  FUAErrorProcType := eptAbort;
  ModalResult := mrOk;

end;

procedure TFrmErrorHandler.sbtn_SendClick(Sender: TObject);
begin

  FUAErrorProcType := eptSend;
  ModalResult := mrOk;
end;

procedure TFrmErrorHandler.sbtn_IgnoreClick(Sender: TObject);
begin

  FUAErrorProcType := eptIgnore;
  ModalResult := mrOk;

end;

procedure TFrmErrorHandler.sbtn_NextClick(Sender: TObject);
var
  Idx:integer;
begin

  if not Assigned(FErrorParam) then Exit;
  Idx := FUAErrors.IndexOf(FErrorParam);
  // Position out of range : be sure catch exception message
  if FUAErrors.Count > Idx + 1 then
  begin
    FErrorParam := TErrorParam(FUAErrors.Items[Idx +1]);
    sbtn_Before.Enabled := true;
  end;

  if FUAErrors.IndexOf(FErrorParam) = FUAErrors.Count -1 then
  begin
    sbtn_Next.Enabled := false;
    sbtn_Before.Enabled := true;
  end;
  DisplayErrorMsg;

end;


procedure TFrmErrorHandler.sbtn_BeforeClick(Sender: TObject);
var
  Idx:integer;
begin

  if not Assigned(FErrorParam) then Exit;
  Idx := FUAErrors.IndexOf(FErrorParam);
  // Position out of range : be sure catch exception message
  if Idx - 1 > -1 then
  begin
    FErrorParam := TErrorParam(FUAErrors.Items[Idx -1]);
    sbtn_Next.Enabled := true;
  end;

  if FUAErrors.IndexOf(FErrorParam) = 0 then
  begin
    sbtn_Next.Enabled := true;
    sbtn_Before.Enabled := false;
  end;

  DisplayErrorMsg;

end;

procedure TFrmErrorHandler.FormCreate(Sender: TObject);
begin
  lb_Msg.Caption := '';
end;

end.