Microsoft Patterns and Practices EntLib

regarding web client software factory

2013-05-30T06:52:33.827-04:00

Hi,

I need an example to retrieve data from database and generate report(RDLC) using web client software factory.

any urls or examples sent will be appreciated.

thanks,

steve

Factory pattern and Nested interfaces

2013-05-02T05:35:17.517-04:00

I am trying to create a generic implementation of the factory pattern where all concrete classes are handled using a reference to the base interface. However, some classes may have special requirements. Let us see the following example:

public interface ICurrencyBase
{
    string sell();
    string buy();
}

The following concrete classes implement the above interface:

public class ConcreteRupee : ICurrencyBase
{
    public ConcreteRupee() {}

    public string buy()
    {    return "buy rupee";     }

    public string sell()
    {    return "sell rupee";    }
}

public class ConcreteDollar : ICurrencyBase
{
    public ConcreteDollar() {}

    public string buy()
    {    return "buy dollar";    }

    public string sell()
    {    return "sell dollar";   }
}

However, I have another concrete class with an additional method requirement. For this I define an additional interface which implements the base interface. The concrete class then implements this new interface:

public interface ISpecialCurrency : ICurrencyBase //inherit from the base interface
{
    string convert ();
}

public class ConcreteSpecial : ISpecialCurrency //implement the new child interface {
    public ConcreteSpecial() { }

    public string buy()
    {
        return "buy special";
    }

    public string sell()
    {
        return "sell special";
    }

    public string convert() //new method added 
    { return "convert special"; } 
}

Then I have the factory class which creates objects of the concrete classes:

public class CurrencyFactory
{
    public CurrencyFactory() {}

    public static ICurrencyBase GetFactory (string type)
    {
        if (type == "Rupee")
            return new ConcreteRupee();

        if (type == "Dollar")
            return new ConcreteDollar();

        if (type == "Special")
            return new ConcreteSpecial();

        throw new Exception ("No such currency found");
    }
}

Using the currency factory above, I can now create instances of the concrete classes and have them referenced through ICurrencyBase. However, the problem is that ICurrencyBase cannot reference the convert() method defined through the child interface:

//ICurrencyBase icurrencyBase = CurrencyFactory.GetFactory("Rupee");  
//ICurrencyBase icurrencyBase = CurrencyFactory.GetFactory("Dollar");
ICurrencyBase icurrencyBase = CurrencyFactory.GetFactory("Special");

string buy  = icurrencyBase.buy  ();
string sell = icurrencyBase.sell ();
string deal = icurrencyBase.convert (); // Problem: ICurrencyBase CANNOT reference the convert() method

How do I solve the above problem where we can use a reference of the base interface to handle requests to all concrete classes.

Thanks.

Which Pattern it is?

2013-05-20T09:25:56.937-04:00

Hi Guys,

I have an ASP application which has the following arechitecture.

UI layer (all ASP pages will resides here)

Classes [All bus logic will reside here with various class files)

Single entry point for all bus logic ASP files (like direct.asp which will direct the control to appropriate ASP bus logic files to carryout required actions baed on the certain parameters that are coming from UI pages)

the output also will go back in the same way back to the font end UI pages.

Is it something can be developed using Factory Pattern in ASP.NET if we need re-write this ASP app? I just wanted to see if my co-relation pattenrs from ASP architecture is correct or not.

any thoughts?

Error trying to launch the configuration console on VS2012 + EntLib 6

2013-05-19T01:05:07.023-04:00

I create a new blank Web Application Solution in VS2012
I download Enterprise Library 6 common infrastructure + Data Access Block using nuget
Try to launch the configuration module in VS2012, right clicking the web.config file

error:

Error launching the configuration console

Could not locate the Enterprise Library binaries required to launch the configuration console. Either use NuGet to add references to the Enterprise Library blocks or set a value for the 'Enterprise Library binaries path' property on the solution to indicate the location of the binaries

web.config :

<configuration>

<system.web>
<compilation debug="true" targetFramework="4.5" />
<httpRuntime targetFramework="4.5" />
</system.web>

</configuration>

packages.config :

<packages>
  <package id="EnterpriseLibrary.Common" version="6.0.1304.0" targetFramework="net45" />
  <package id="EnterpriseLibrary.Data" version="6.0.1304.0" targetFramework="net45" />
</packages>

Global section on the solution file :

Global
	GlobalSection(SolutionConfigurationPlatforms) = preSolution
		Debug|Any CPU = Debug|Any CPU
		Release|Any CPU = Release|Any CPU
	EndGlobalSection
	GlobalSection(ProjectConfigurationPlatforms) = postSolution
		{19AC498E-9D71-439E-8565-583AAF6531B1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
		{19AC498E-9D71-439E-8565-583AAF6531B1}.Debug|Any CPU.Build.0 = Debug|Any CPU
		{19AC498E-9D71-439E-8565-583AAF6531B1}.Release|Any CPU.ActiveCfg = Release|Any CPU
		{19AC498E-9D71-439E-8565-583AAF6531B1}.Release|Any CPU.Build.0 = Release|Any CPU
	EndGlobalSection
	GlobalSection(SolutionProperties) = preSolution
		HideSolutionNode = FALSE
	EndGlobalSection
	GlobalSection(ExtensibilityGlobals) = postSolution
		EnterpriseLibraryConfigurationToolBinariesPathV6 = packages\EnterpriseLibrary.Common.6.0.1304.0\lib\NET45;packages\EnterpriseLibrary.Data.6.0.1304.0\lib\NET45;packages\EnterpriseLibrary.Logging.6.0.1304.0\lib\NET45;packages\EnterpriseLibrary.ExceptionHandling.6.0.1304.0\lib\NET45;packages\EnterpriseLibrary.ExceptionHandling.Logging.6.0.1304.0\lib\NET45;packages\EnterpriseLibrary.Validation.6.0.1304.0\lib\NET45
	EndGlobalSection
EndGlobal

Microsoft Enterprise library Vs Spring.NET

2013-02-27T04:26:09.97-05:00

Has anyone worked on both Microsoft Enterprise Library and Spring.NET??

We are planning to develop our next phase of application using Microsoft Enterprise Library coz i am getting really good feedback from other projects.

If wud be great if you share ur personal experiences.

Thanks

free tools for enterprise application??

2013-03-07T07:09:54.597-05:00

Hi,

are there any free tools for managing enterprise application such as below?

1. Atlassian Bamboo [Continous Integration Server]

2. JIRA - [Agile Methodology]

3. Crucible [Code Rreview]

Thanks

How to use Microsoft.Practices.EnterpriseLibrary.Data + app.config

2009-04-17T20:28:04.583-04:00

Hi all,

I am a new bie to Microsoft.Practices.EnterpriseLibrary.

Can some one help me or provide some useful links or code that will help me to start a simple way of accessing data using Microsoft enterprise library.

Thanks

Message: Procedure or function 'WriteLog' expects parameter '@corporateId', which was not supplied.

2013-05-03T18:54:36.76-04:00

I have converted WebSite from Asp.net 2.0 to Asp.Net 4.0 as well updated the Enterprise library from v2.0.. to 5.0....

but now it failing while writing the exception log in db getting error as

Message

: Procedure or function 'WriteLog' expects parameter '@corporateId', which was not supplied

Enterprise Library 6.0 RELEASED!

2013-05-03T17:57:45.187-04:00

Microsoft patterns & practices team released the new version of EntLib, with a new block (Semantic Logging Application Block) and lots of other goodness. Check out the official announcement and Soma's post.

Enterprise Library 5.0 support MySQL

2013-03-06T05:51:36.56-05:00

Hi,

Please let me know how to implement enterprise library for MySQL database.

Regards,
Senthil

Enterprise library advantages over own custom data connection classes

2013-05-03T02:38:30.767-04:00

Hello, can any one help me with the exact advantages of enterprise library manager (Data Application Block). Is it possible to switch the database easily using data application block (eg. from sql server to Oracle) with out changing any code

Please help

Pass (Data Table) to SQL Sever From ASP.NEt using Enterprise Library

2013-04-09T04:43:47.413-04:00

Using enterprise library to pass xml type parmeter is quite good experience but sometime it is hard to catch errors,may be while casting types in sql server.

It is good idea to create data type (table) in sql server and pass data table to stored procedure.

Regards

Khuram Shehzad

Functionality of Logger.Write("...")

2013-04-02T09:22:28.443-04:00

Hi all,

I'm using Enterprise Library to log the exception. When i execute the following code,

Logger.Write("Exception occured");

Where this exception message will be logged? Where can i see this message?

Thanks

Have EnterpriseLibrary.Logging create a file in UTF-8, HOW?

2013-03-19T09:57:42.367-04:00

Hi there,

I have been spamming google for some time about this now, but i cannot seem to find the solution.

I have set up a LogListener with a corresponding Formatter and it is working just fine:

<add name="NormalLogListener" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.RollingFlatFileTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging" listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.RollingFlatFileTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging" fileName="logs/MVC22.log" footer="" formatter="ShortLogFormatter" header="" rollInterval="Day" timeStampPattern="yyyy-MM-dd" maxArchivedFiles="14" />

...

<add type="Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.TextFormatter, Microsoft.Practices.EnterpriseLibrary.Logging" template="{timestamp(local)} - {severity} - {category} - {message}" name="ShortLogFormatter" />

I only have one small issue: How can I influence the file encoding of the log file that is created?

I see the file is created with ANSI encoding, but i really want it to be UTF-8, because i want to log some string parameters that can contain umlauts and all that good stuff.

Can someone point me to the location where i can configure this?

what is sqlhelper

2005-11-30T19:55:37.777-05:00

Hi friends
whats sqlhelper ? these days am keep reading abt this class .looks like its a class related to DAAB.
am using patterns & practices june edition application block but i did not see any sqlhelper class in it !!
this sqlhelper class is in old version of DAAB ,is it?
Thanks for your input

Patterns and Practices for Mobile apps?

2013-03-26T17:55:18.05-04:00

I am looking for patterns and practices for developing mobile apps in .Net / C# - specifically for help design..

I cannot find any - can someone point me in the right direction?

Data Access Application Block advice

2013-03-08T15:50:54.23-05:00

hi all,

i want to start working with design pattern and i have a project has a database about 6 tables.

Is Data Access Application Block for .NET suitable for small kind of projects or it designed for only entrprise one.

I need you advice before go on design pattern.

http://www.microsoft.com/en-us/download/details.aspx?id=435

thanks so much.

Connection error

2013-02-20T20:24:40.777-05:00

Hi, im using the Enterprise Library to insert and update data to an sql database.

c# code:

Database db = DatabaseFactory.CreateDatabase();
IDbConnection connection = db.GetConnection();
connection.Open();
IDbTransaction transaction = connection.BeginTransaction();
DBCommandWrapper command;

try
{
//insert part
command = db.GetStoredProcCommandWrapper("stored_procedure1");
command.CommandTimeout = 900;
command.AddInParameter("@parameter1", DbType.Int32, 3);
db.ExecuteNonQuery(command, transaction);

//update part
command = db.GetStoredProcCommandWrapper("stored_procedure2");
command.CommandTimeout = 900;
command.AddInParameter("@param1", DbType.Int32, 5);
db.ExecuteNonQuery(command, transaction);

transaction.Commit();
}

finally
{
connection.Close();
}

the code is on a method.
The method is executed many times and sometimes im getting error:
"Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached."

My question is: Is it ok to have the insert and update part together as it is above?

Thanks.

Check open connections tool

2013-02-21T20:56:57.137-05:00

Hi, im using the Enterprise Library to insert and update data to an sql database.

Im getting error:

"Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached."

I want to check how many open connections I have while the application is running.

Which tool can I use to do that?

Thanks.

Wants to know when should i use singleton pattern

2013-03-01T11:07:30.273-05:00

Please provide me practical example.