Componentes.Terceros.jvcl/official/3.36/examples/JvSimpleXML Validator/MainFrm.pas
2009-02-27 12:23:32 +00:00

123 lines
3.1 KiB
ObjectPascal

{******************************************************************
JEDI-VCL Demo
Copyright (C) 2002 Project JEDI
Original author:
Contributor(s):
You may retrieve the latest version of this file at the JEDI-JVCL
home page, located at http://jvcl.sourceforge.net
The contents of this file are used with permission, subject to
the Mozilla Public License Version 1.1 (the "License"); you may
not use this file except in compliance with the License. You may
obtain a copy of the License at
http://www.mozilla.org/MPL/MPL-1_1Final.html
Software distributed under the License is distributed on an
"AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
implied. See the License for the specific language governing
rights and limitations under the License.
******************************************************************}
unit MainFrm;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ComCtrls, JvComponent, JvSimpleXml, ExtCtrls;
type
TForm1 = class(TForm)
JvSimpleXml1: TJvSimpleXml;
reXML: TRichEdit;
btnLoad: TButton;
btnValidate: TButton;
OpenDialog1: TOpenDialog;
Panel1: TPanel;
Label1: TLabel;
Label2: TLabel;
sbResults: TStatusBar;
chkAutoValidate: TCheckBox;
procedure btnLoadClick(Sender: TObject);
procedure btnValidateClick(Sender: TObject);
procedure reXMLChange(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
procedure LoadXML(const Filename:string);
protected
{ Private declarations }
procedure WMDropFiles(var Message: TWMDropFiles); message WM_DROPFILES;
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
uses ShellAPI;
{$R *.dfm}
procedure TForm1.btnLoadClick(Sender: TObject);
begin
if OpenDialog1.Execute then
LoadXML(OpenDialog1.Filename);
end;
procedure TForm1.btnValidateClick(Sender: TObject);
begin
sbResults.Panels[0].Text := 'Validating...';
sbResults.Update;
Screen.Cursor := crHourGlass;
try
try
JvSimpleXML1.LoadFromString(reXML.Lines.Text);
sbResults.Panels[0].Text := 'No errors encountered in XML';
except
on E: Exception do
sbResults.Panels[0].Text := E.Message;
end;
finally
Screen.Cursor := crDefault;
end;
end;
procedure TForm1.reXMLChange(Sender: TObject);
begin
btnValidate.Enabled := reXML.GetTextLen > 0;
end;
procedure TForm1.WMDropFiles(var Message: TWMDropFiles);
var buf:string;
begin
SetLength(buf, DragQueryFile(Message.Drop, 0, nil, 0) + 1);
DragQueryFile(Message.Drop, 0, PChar(buf), Length(buf));
LoadXML(PChar(buf));
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
DragAcceptFiles(Handle, true);
end;
procedure TForm1.LoadXML(const Filename: string);
begin
if FileExists(Filename) then
begin
reXML.Lines.LoadFromFile(Filename);
reXMLChange(nil);
if chkAutoValidate.Checked then
btnValidate.Click;
end;
end;
end.