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Archive for the ‘Software Development’ Category

MIX2011 Fiddler talk is now live – Fiddler Web Debugger – Site Home – MSDN Blogs

Posted by jpluimers on 2011/05/20

I just found out that the talk that Eric Law gave on Fiddler during MIX2011 : he blogged MIX2011 Fiddler talk is now live, you can find the video here.

During that talk he:

launched the new version of Fiddler2
that IE9 allows localhost traffic to be intercepted by Fiddler (so no more ipv4.fiddler hacks)
indicated that FireFox now can use the INET layer that Fiddler2 intercepts, so no more need for FiddlerHook

–jeroen

Posted in Development, Fiddler, Power User, Software Development, Web Development | 1 Comment »

Better solution for C# Warning CS0067 than “#pragma warning disable 0067”: The event ‘event’ is never used – Trevor’s Dev Blog – Site Home – MSDN Blogs

Posted by jpluimers on 2011/05/19

When you get a C# Warning CS0067, the MSDN documentation tell you to insert a “#pragma warning disable 0067”, but Trevor Robinson has a better solution at C# Warning CS0067: The event ‘event’ is never used – Trevor’s Dev Blog – Site Home – MSDN Blogs:

Since the event is never used, make the event explicit, or even throw an exception in the add clause of the event.

–jeroen

Posted in .NET, C#, C# 2.0, C# 3.0, C# 4.0, Development, Software Development | Leave a Comment »

Simple example to show DateTime.Now in ISO 8601 format on ideone.com | Online C# Compiler & Debugging Tool

Posted by jpluimers on 2011/05/17

I’m a fan of ISO 8601, as it is a universal way of expressing dates and times (no more MDY confusion ).

I wrote about using ISO 8601 in batch-files and with Google Calendar before.

Now it is time to give you a simple C# example.

When you realize that XML uses ISO 8601 for their date and time formats, the .NET conversion is very easy:

using System;
using System.Xml;

public class Test
{
    public static void Main()
    {
        string Iso8601DateTime =
            XmlConvert.ToString(DateTime.Now, XmlDateTimeSerializationMode.Local);
        Console.WriteLine(Iso8601DateTime);
    }
}

I wrote about ideone.com before: it is an excellent place to run sample C# code (and other languages).

When running this on ideone.com, you can see their local server time in ISO 8601 format.
Cute :-)

BTW: There are more ways to run your C# code online.

–jeroen

via: Simple example to show DateTime.Now in ISO 8601 format on Ideone.com | Online C# Compiler & Debugging Tool.

Posted in .NET, C#, Development, ISO 8601, Power User, Software Development | 1 Comment »

How to Get Paths and URL fragments from the HttpRequest object

Posted by jpluimers on 2011/05/12

There are many ASP.NET HttpRequest properties.

Sadly, the MSDN documentation does not have many examples telling you which property maps to which portion of the URL.

So it usually is a big fight extracting the sub portions you need.

Luckily, Steve Lautenschlager has the How Do I Get Paths and URL fragments from the HttpRequest object? article online.
The article has a table with the properties and portions of the URL that end up in those properties.

Really neat, as it saves a lot of time.

–jeroen

Posted in .NET, ASP.NET, Development, Software Development | Leave a Comment »

Martin Kulov’s Blog: Any CPU vs. x86 vs. x64

Posted by jpluimers on 2011/05/11

Thanks to Martin Kulov’s Blog: Any CPU vs. x86 vs. x64 I got a reference to a great article explaining this in more detail.

The obvious points are 1., 2. and 3., but it is 4..7 that makes the article really worth reading.

–jeroen

PS: a few more relevant links

http://stackoverflow.com/questions/247098/x64-net-compilation-process-explorer-oddity

http://stackoverflow.com/questions/311158/why-doesnt-the-corflags-utility-warn-when-marking-x64-assemblies-as-x86

Posted in .NET, ASP.NET, C#, Development, Software Development | Leave a Comment »

FM USB Library

Posted by jpluimers on 2011/05/10

The FM USB Library is on my research list.

–jeroen

PS: a few raw links that might fit in:

http://www.silabs.com/usbradio / http://www.silabs.com/products/mcu/Pages/USBFMRadioRD.aspx

http://code.google.com/p/silabsradiodll/

http://parts.digikey.nl/1/1/543483-usb-fm-radio-stick-usbfmradio-rd.html

http://www.mouser.com/ProductDetail/Silicon-Laboratories/USBFMRADIO-RD/?qs=42TdBvIR%2fY7X5XVJkFBvBg%3d%3d

http://nl.farnell.com/jsp/search/productdetail.jsp?sku=1186925

http://www.newark.com/jsp/Non-Stocked/All+Non-Stocked+Products/SILICON+LABORATORIES/USBFMRADIO-RD/displayProduct.jsp?sku=98K2140

http://www.mp3car.com/hardware-development/64550-usb-fm-rds-solution-with-sofware-40.html

http://www.mp3car.com/hardware-development/64550-usb-fm-rds-solution-with-sofware-41.html

http://usb.brando.com/prod_detail.php?prod_id=00136

http://usb.brando.com/usb-radio-ii_p1785c35d15.html

http://www.whitebream.com/p811.shtml?id=p811

http://khason.net/blog/read-and-use-fm-radio-or-any-other-usb-hid-device-from-c/

http://www.dealextreme.com/p/usb-digital-radio-receiver-dongle-fm-76-108mhz-1929

http://www.silabs.com/products/audiovideo/fmreceivers/Pages/default.aspx

http://www.google.com/search?sourceid=chrome&ie=UTF-8&q=usb+fm+rds+site%3Amouser.com

http://www.mp3car.com/hardware-development/69493-hqct-module-new-thread-following-hu-rds-rdbs.html

http://www.mp3car.com/hardware-development/64550-usb-fm-rds-solution-with-sofware-2.html

http://www.cartft.com/catalog/il/1139

http://www.digital-car.co.uk/forum/showthread.php?12194-New-CarTFT-FM-(Automotive-USB-FM-RDS-tuner)

http://www.cartft.com/catalog/il/1017

http://btwincap.sourceforge.net/download.html

http://btwincap.sourceforge.net/supportedcards.html

http://www.alibri.it/RRMobile/Silab%20USB%20Radio.htm

http://www.mo-co-so.com/Car-TFT-FM-Tuner-with-RDS-p/mcs-tft-rad.htm

http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q311272

Posted in .NET, C#, Delphi, Development, Prism, Software Development | Leave a Comment »

Don’t sleep when you use your Entity Framework model from a separate assembly

Posted by jpluimers on 2011/05/05

The Entity Framework needs you to have a connection string in your App.Config.

It is good practice having your Entity Framework model in a separate assembly.

When using it in your main app, be aware that the connection string that belongs to your model needs to be in the App.config of your main app.

If not, you get an exception like this:

System.ArgumentException was unhandled Message=The specified named connection is either not found in the configuration, not intended to be used with the EntityClient provider, or not valid. Source=System.Data.Entity StackTrace: at System.Data.EntityClient.EntityConnection.ChangeConnectionString(String newConnectionString) at System.Data.EntityClient.EntityConnection..ctor(String connectionString) at System.Data.Objects.ObjectContext.CreateEntityConnection(String connectionString) at System.Data.Objects.ObjectContext..ctor(String connectionString, String defaultContainerName)

The clue is the contents of the defaultContainerName parameter: you will see that in the App.config of your Entity Framework assembly.

Copy that over to the App.config of your main assembly, then make sure it points to your right database (if you use OTAP), then go :-)

Your App.config then looks like this:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <connectionStrings>
    <add name="MyEntities" connectionString="metadata=res://*/My_EntityModel.csdl|res://*/My_EntityModel.ssdl|res://*/My_EntityModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=my-sql-server;initial catalog=my-database;persist security info=True;user id=my-user;password=my-password;multipleactiveresultsets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient" />
  </connectionStrings>
</configuration>

–jeroen

Posted in .NET, C#, Database Development, Development, EF Entity Framework, Software Development, SQL Server | Leave a Comment »

SmackFu: Shoutcast Metadata Protocol

Posted by jpluimers on 2011/05/04

The SmackFu: Shoutcast Metadata Protocol page describes how the Icecast and Shoutcast meta-data (like song title) are being sent inside their streams.

Notes:

The above only explains the song meta data (artist-title); you cannot update the Stream Title without performing a reconnect, as they are in the stream meta data; this post explains why.
The stream headers are explained here, but they don’t contain the song title!
Icecast uses the dash “-” as separator between artist and title of the song, so if an Artist contains a dash, you are out of luck, as this thread shows.

–jeroen

Posted in .NET, BASS, Development, Power User, Software Development | Leave a Comment »

DealExtreme uses ASP.NET

Posted by jpluimers on 2011/05/03

It is always fun to see error messages on web-sites; they reveal a lot about the technology they use.

For instance, DealExtreme – a very popular site to order electronics and gadgets from the far east – uses ASP.NET.

They have verbose logging enabled, which even includes a warning to turn it off in production sits, as per this comment in the page source:

This error page might contain sensitive information because ASP.NET is configured to show verbose error messages using <customErrors mode=”Off”/>. Consider using <customErrors mode=”On”/> or <customErrors mode=”RemoteOnly”/> in production environments.

This is the full text, indicating they use .NET 2.0 and SQL Server with connection pooling (which is a good thing), and the BLToolkit extensions, Callbacks, a separation of Business Logic and Data Abstraction (BLL, DAL/DAO) probably using Spring.net and Data Binding by calling BindData() in stead of DataBind().

Server Error in ‘/’ Application.

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 – Could not open a connection to SQL Server)

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 – Could not open a connection to SQL Server)

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:
[SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)]
   System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +578
   System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +88
   System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +6265031
   System.Data.SqlClient.SqlConnection.Open() +258
   BLToolkit.Data.DbManager.ExecuteOperation(OperationType operationType, Action operation) +64
[DataException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)]
   BLToolkit.Data.DbManager.OnOperationException(OperationType op, DataException ex) +176
   BLToolkit.Data.DbManager.ExecuteOperation(OperationType operationType, Action operation) +135
   BLToolkit.Data.DbManager.OpenConnection() +91
   BLToolkit.Data.DbManager.get_Connection() +42
   BLToolkit.Data.DbManager.OnInitCommand(IDbCommand command) +31
   BLToolkit.Data.DbManager.get_SelectCommand() +28
   BLToolkit.Data.DbManager.GetCommand(CommandAction commandAction, CommandType commandType, String sql) +18
   BLToolkit.Data.DbManager.PrepareCommand(CommandAction commandAction, CommandType commandType, String commandText, IDbDataParameter[] commandParameters) +91
   BLToolkit.Data.DbManager.SetCommand(CommandAction commandAction, CommandType commandType, String commandText, IDbDataParameter[] commandParameters) +51
   BLToolkit.Data.DbManager.SetCommand(String commandText, IDbDataParameter[] commandParameters) +25
   DealExtreme.Mall.Common.DAL.DAO.BLToolkitExtension.CategoryAccessor.GetAll() +168
   DealExtreme.Mall.Common.BLL.CategoryBL.CategoryLogic.GetAllCategory() +53
   DealExtreme.Mall.Common.Caching.ProductCaching.CategoryCache.GetAllCategories() +9
   DealExtreme.Mall.Common.Caching.ProductCaching.BLToolkitExtension.CategoryCache.GetAllCategories() +433
   DealExtreme.Mall.Search.BLL.SearchLogic.GetSearchedCategory(String request) +255
   DealExtreme.Mall.Search.Web.Search.BindData() +416
   DealExtreme.Mall.Search.Web.Search.Page_Load(Object sender, EventArgs e) +16
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +42
   System.Web.UI.Control.OnLoad(EventArgs e) +132
   System.Web.UI.Control.LoadRecursive() +66
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2428
[SqlException]: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at BLToolkit.Data.DbManager.ExecuteOperation(OperationType operationType, Action operation) [DataException]: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) at BLToolkit.Data.DbManager.OnOperationException(OperationType op, DataException ex) at BLToolkit.Data.DbManager.ExecuteOperation(OperationType operationType, Action operation) at BLToolkit.Data.DbManager.OpenConnection() at BLToolkit.Data.DbManager.get_Connection() at BLToolkit.Data.DbManager.OnInitCommand(IDbCommand command) at BLToolkit.Data.DbManager.get_SelectCommand() at BLToolkit.Data.DbManager.GetCommand(CommandAction commandAction, CommandType commandType, String sql) at BLToolkit.Data.DbManager.PrepareCommand(CommandAction commandAction, CommandType commandType, String commandText, IDbDataParameter[] commandParameters) at BLToolkit.Data.DbManager.SetCommand(CommandAction commandAction, CommandType commandType, String commandText, IDbDataParameter[] commandParameters) at BLToolkit.Data.DbManager.SetCommand(String commandText, IDbDataParameter[] commandParameters) at DealExtreme.Mall.Common.DAL.DAO.BLToolkitExtension.CategoryAccessor.GetAll() at DealExtreme.Mall.Common.BLL.CategoryBL.CategoryLogic.GetAllCategory() at DealExtreme.Mall.Common.Caching.ProductCaching.CategoryCache.GetAllCategories() at DealExtreme.Mall.Common.Caching.ProductCaching.BLToolkitExtension.CategoryCache.GetAllCategories() at DealExtreme.Mall.Search.BLL.SearchLogic.GetSearchedCategory(String request) at DealExtreme.Mall.Search.Web.Search.BindData() at DealExtreme.Mall.Search.Web.Search.Page_Load(Object sender, EventArgs e) at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) [HttpUnhandledException]: Exception of type 'System.Web.HttpUnhandledException' was thrown. at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.search_aspx.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Version Information: Microsoft .NET Framework Version:2.0.50727.4952; ASP.NET Version:2.0.50727.4955

Posted in .NET, ASP.NET, C#, Development, Software Development | Leave a Comment »

Some notes on BASS (re)encoding and tagging audio files

Posted by jpluimers on 2011/04/27

When (re)encoding files through BASS:

always make sure you either have RAW PCM format source; decode back from anything else back to RAW PCM if you have compressed sources; this BassEncoder.EncodeFile thread explains why.
not all of the BASS encoder classes support tagging with artist/title; use external tools for that; this message explains which encoders (partially) support tagging.
often it is not possible to find the encoder that both encodes the audio in the quality level you want, and supports the tagging you want, so you definitely need to look at the above mentioned tagging tools.
if you want to play lots of files in random succession, it is wise to calculate ReplayGain and apply it: it makes your files sound equally loud: note this is not wise if you want to play full albums, but is wise for playing random tracks. This ReplayGain thread can provide you with a start.
You can do gain correction with BASS, or opt for external gain tools on RareWares.org.

--jeroen

PS: more on Audio correctionň

Posted in BASS, BASS.NET, Development, Power User, Software Development, Un4seen BASS Audio Library | Leave a Comment »

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The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Software Development’ Category

MIX2011 Fiddler talk is now live – Fiddler Web Debugger – Site Home – MSDN Blogs

Better solution for C# Warning CS0067 than “#pragma warning disable 0067”: The event ‘event’ is never used – Trevor’s Dev Blog – Site Home – MSDN Blogs

Simple example to show DateTime.Now in ISO 8601 format on ideone.com | Online C# Compiler & Debugging Tool

How to Get Paths and URL fragments from the HttpRequest object

Martin Kulov’s Blog: Any CPU vs. x86 vs. x64

FM USB Library

Don’t sleep when you use your Entity Framework model from a separate assembly

SmackFu: Shoutcast Metadata Protocol

DealExtreme uses ASP.NET

Server Error in ‘/’ Application.

Some notes on BASS (re)encoding and tagging audio files

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

Subscribe

Archives

Recent Comments

Recent Posts

Blog Stats

Meta title

Tag Cloud Title

Top Clicks

Top Posts

My badges

My Flickr Stream

Pages

All categories

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Archive for the ‘Software Development’ Category

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