We provide a number of demonstration programs designed to help you to better understand some of the concepts involved when
working with COBOL projects in Visual Studio.
The demonstration programs are installed in subfolders under
%PUBLIC%\Documents\Micro Focus\Visual COBOL\Samples by default.
You can access the demonstrations with the help of the
Visual COBOL Samples Browser for distributed application samples. See
To start the Samples Browser for access instructions.
To view the demonstrations for .NET code, select
Show .NET COBOL only from the list in the upper left corner of Samples Browser.
The following demonstrations are supplied:
- Azure
- Includes demonstrations of how to create COBOL Azure services.
- Book Demo
- Various demonstrations based on the Book demo application.
- Classic
-
- DB2 ECM - Connect
- Shows the syntax variants supported by IBM DB2 LUW for connecting to and disconnecting from a DB2 database using Type 1 CONNECTs.
- DB2 ECM - Db2storedproc
- Shows the syntax variants for connecting to and disconnecting from a DB2 database using Type 1 CONNECTs that IBM DB2 LUW supports.
- DB2 ECM - Dynamic
- A simple example of using dynamic SQL with IBM DB2 LUW, performing a variety of SQL operations. If this program was written
as a static SQL program, it would have to be broken apart into two programs, since static SQL require the table to already
exist or a compile error will result.
- DB2 ECM - LOB Data Types
- Illustrates the use of LOB LOCATOR and VALUES functions to retrieve Lob data from DB2 LUW.
- DB2 ECM - Select
- A simple example of using both singleton SELECT and cursor-based FETCH statements with IBM DB2 LUW.
- DB2 ECM - Whenever
- Illustrates the use of EXEC SQL WHENEVER statements for error handling, and using the DB2(MSGAREA) compiler directive to specify
a COBOL variable for retrieving error message text larger than the 70 bytes provided in SQLERRMC.
- Data Tools
-
- ACU to MF Data Conversion
- The solution builds the ACU2MFDataMigration.exe - a utility that converts an ACU Vision indexed file or directory of files
to Micro Focus indexed files. You can use executable as delivered, or modify and rebuild the source code as desired.
- RM to MF Data Conversion
- The solution builds to RMMFDataMigration.exe and RM2MFconvert.dll which enable you to convert an RM/COBOL indexed file or
directory of files to Micro Focus indexed files. You can use the executables as delivered, or modify and rebuild the source
code as desired.
- Diagnostic Tools
-
- Azure Consolidated Tracing Facility
- Includes a Visual Studio solution for an Azure service which consists of a Worker Role that calls a COBOL program on startup
and writes a number of trace records using the COBOL tracing APIs.
- DotNetCore
-
- TicTacCore
- Uses the COBOL Tic-Tac-Toe demonstration to illustrate how to create, build, debug, and publish a COBOL application to be
used on .NET Core.
- Games
-
- COBOL Blitz
- Demonstrates the use of Windows forms, enumeration types, inheritance, and of sounds and graphics.
- COBOLDoKu
- Demonstrates Windows Forms using a .NET user control.
- COBOL Tic-Tac-Toe
- Demonstrates how to use WPF from aVisual COBOL application.
- TicTacCore
- Uses the COBOL Tic-Tac-Toe demonstration to illustrate how to create, build, debug, and publish a COBOL application to be
used on .NET Core.
- Language Reference for .NET COBOL
-
- Core.Net
- Core.NET introduces some of the standard features of the .NET Framework you need to be aware of, and any new COBOL syntax
in order to support these features.
- All other samples for COBOL for .NET
- Each of the demonstrations shows how to use the corresponding COBOL feature within the .NET framework.
- MFUnit Features / Unit Testing
- A set of examples which demonstrate he capabilities of the Micro Focus Unit Testing Framework.
- Moving to .NET
-
- C# WinBook
- Demonstrates how C# can interoperate with .NET COBOL. The SmartLinkage functionality enables you to expose COBOL group items
as .NET types so that other managed languages can interoperate with them.
- Interfacing With Std COBOL
- Demonstrates how to use compatible types to interface with standard COBOL, and in particular how to manipulate group items
and occurs structures.
- Run Units
-
- Multiple Run Units
- Demonstrates why and how procedural COBOL is compiled and invoked in a multiple user environment. The application is an ASP.NET
Web Service and you invoke it through the ASP.NET Development Server.
- WCF Airport Demo with Run Units
- Demonstrates the use of COBOL WCF Web services in multiple users environment. The sample consists of a COBOL WCF REST service
and an application that consumes that service. The COBOLAirport application uses file operations to read the information from
a COBOL Run Unit. In a real-world scenario, multiple users access the application simultaneously through various browser sessions.
- SQL
-
- OESQL (.NET OESQL) - Getting Started (.NET)
- Demonstrates how to use static SQL with OpenESQL under ADO.NET, performing a variety of SQL operations. It also demonstrates
the use of different styles of CONNECT statement.
- OESQL - Connected Demo (.NET)
- Fills a DataSet from a data source, modifies the DataSet and then synchronizes the changes in the DataSet with the data source.
The modified contents of the DataSet are displayed in the Output Window. To execute this demonstration, you must first download
and install the SQL Server Northwind database from the Microsoft Web site,
http://www.microsoft.com. Once there, enter the following search criteria to locate the appropriate download page:
northwind pubs database download
- OESQL - Cursor Demo (.NET)
- Demonstrates how to mix OpenESQL with direct calls to ADO.NET.
- OESQL - Disconnected Demo (.NET)
- Manipulates offline data in a DataSet. The results of the data manipulation are displayed in the Output Window.
- OESQL - LOB Demo (.NET)
- Demonstrates how ADO.NET can be used in mixed language projects to insert and select large objects (LOBs). LobDemo shows OpenESQL
working with LOB columns in a SQL Server table.
- OESQL - OrderStatus Demo (.NET)
- Demonstrates how ADO.NET can be used in mixed language projects, and uses COBOL and C#.
- Shared Connection C# to COBOL EXEC ADO (.NET)
- Demonstrates how to create a C# SQL program ADO.NET database connection and pass it to a COBOL program to use.
- Shared Connection COBOL to C# EXEC ADO (.NET)
- Demonstrates how to create a COBOL SQL program ADO.NET database connection and pass it to a C# program to use.
- OESQL - Web Application Book (.NET)
- Includes a COBOL Web Application Project which contains a Web form. The form calls an intermediary program, SqlBookWrapper.cbl,
which maps .NET data types onto COBOL data types. The intermediary program then calls the existing COBOL program, sqlbook.cbl,
to perform the business logic.
- OESQL - WPF Book (.NET)
- Includes a Windows Presentation Foundation (WPF) interface written in .NET COBOL that interacts with an existing COBOL program.
The form calls an intermediary program, SqlBookWrapper.cbl, which maps .NET data types onto COBOL data types. The intermediary
program then calls the existing COBOL program, sqlbook.cbl, to perform the business logic.
- SQLCLR
- You need to run the following samples with administrator's rights:
-
- SQLCLR - EmailAddress Type
- Shows how to create a Microsoft SQL Server User Defined Type.
- SQLCLR - HelloWorld
- Shows how to create a simple Microsoft SQL Server stored procedure.
- SQLCLR - RecordSet Procedure
- Shows how to create a simple Microsoft SQL Server stored procedure that returns a row.
- SQLCLR - RegEx User Functions
- Shows how to create a simple Microsoft SQL Server stored function and how it can be used to perform field validation.
- SQLCLR - TableValue Functions
- Shows how to create a Microsoft SQL Server table value function and how it can be used to return multiple rows.
- WCF
- Various samples demonstrating how to develop COBOL applications using the Windows Communication Foundation.
- Web
- Various samples demonstrating how to develop COBOL applications for the Web.
- Windows Forms
- Various samples demonstrating how to develop COBOL applications that use Windows Forms.
- WPF
- Various samples demonstrating how to develop COBOL applications that use the Windows Presentation Foundation.
- Web Applications
-
- MultiRunUnits
- Demonstrates why and how procedural COBOL is compiled and invoked in a multiple user environment. The application is an ASP.NET
Web Service and you invoke it through the ASP.NET Development Server.
- Web Application Book
- A Web Application project which contains a Web form. The form provides a .NET interface to an existing COBOL program. The
BookClass project provides a proxy COBOL program that calls the existing COBOL Book program.