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Dotnet Interface Guide

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Dotnet Interface Guide The tool of thought for expert programming .Net Interface Guide Version 12.0 Copyright 1982-2008 by Dyalog Limited. All rights reserved. Version 12.0.3 First Edition August 2008 No part of this publication may be reproduced in any form by any means without the prior written permission of Dyalog Limited, South Barn, Minchens Court, Minchens Lane, Bramley Hampshire, RG26 5BH, United Kingdom. Dyalog Limited makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Dyalog Limited reserves the right to revise this publication without notification. TRADEMARKS: Microsoft, MS and MS-DOS are registered trademarks of Microsoft Corporation. Windows, Windows NT, Windows 2000, Visual Basic and Excel are trademarks of Microsoft Corporation. The Dyalog APL True Type font is the copyright of Adrian Smith. TrueType is registered trademark of Apple Computer, Inc. All other trademarks and copyrights are acknowledged. i Contents C H A P T E R 1 Overview.........................................................................................1 Classic and Unicode Versions ....................................................................................1 Introduction ................................................................................................................1 .NET Classes ..............................................................................................................2 GUI Programming with System.Windows.Forms ......................................................2 Web Services ..............................................................................................................2 ASP.NET and WebForms...........................................................................................3 Prerequisites................................................................................................................3 The bin Directory........................................................................................................3 Files Installed with Dyalog.........................................................................................4 C H A P T E R 2 Accessing .NET Classes...............................................................5 Introduction ................................................................................................................5 Locating .NET Classes and Assemblies .....................................................................5 Using .NET Classes....................................................................................................8 Constructors and Overloading ....................................................................................9 How the NEW System Function is implemented.......................................................9 Displaying a .NET Object.........................................................................................10 Exploring .NET Classes............................................................................................10 Advanced Techniques...............................................................................................18 Shared Members .......................................................................................................18 APL language extensions for .NET objects..............................................................18 Exceptions ................................................................................................................20 More Examples.........................................................................................................21 Directory and File Manipulation...............................................................................21 Sending an email.......................................................................................................22 Web Scraping............................................................................................................23 Enumerations ............................................................................................................25 Handling Pointers with Dyalog.ByRef .....................................................................27 C H A P T E R 3 Using Windows.Forms................................................................29 Introduction ..............................................................................................................29 Creating GUI Objects ...............................................................................................29 Object Hierarchy.......................................................................................................30 Positioning and Sizing Forms and Controls..............................................................30 Modal Dialog Boxes.................................................................................................30 Example 1 .................................................................................................................31 Example 2 .................................................................................................................34 Non-Modal Forms ....................................................................................................35 DataGrid Examples...................................................................................................35 ii Contents GDIPLUS Workspace.............................................................................................. 36 TETRIS Workspace ................................................................................................. 36 WEBSERVICES Workspace ................................................................................... 36 C H A P T E R 4 Writing .NET Classes in Dyalog APL........................................... 37 Introduction.............................................................................................................. 37 Assemblies, Namespaces and Classes...................................................................... 37 Example 1................................................................................................................. 38 aplfns1.cs.................................................................................................................. 41 Calling IndexGen from Dyalog APL ....................................................................... 42 Example 2................................................................................................................. 43 aplfns2.cs.................................................................................................................. 45 Example 2a............................................................................................................... 46 aplfns2a.cs................................................................................................................ 46 Example 3................................................................................................................. 48 aplfns3.cs.................................................................................................................. 51 Example 4................................................................................................................. 52 aplfns4.cs.................................................................................................................. 55 Example 5................................................................................................................. 56 aplfns5.cs.................................................................................................................. 58 Interfaces.................................................................................................................. 60 C H A P T E R 5 Dyalog APL and IIS ..................................................................... 63 Introduction.............................................................................................................. 63 IIS Applications and Virtual Directories.................................................................. 64 Internet Services Manager........................................................................................ 64 The dyalog.net Virtual Directory ............................................................................. 65 Creating the dyalog.net Virtual Directory................................................................ 66 Creating the dyalog.net Virtual Sub-Directories ...................................................... 71 C H A P T E R 6 Writing Web Services ................................................................. 73 Introduction.............................................................................................................. 73 Web Service (.asmx) Scripts .................................................................................... 74 Compilation.............................................................................................................. 75 Exporting Methods................................................................................................... 75 Add1......................................................................................................................... 76 Add2......................................................................................................................... 76 Web Service Data
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