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Month: December 2011

Solving: A generic error occurred in GDI+. in C#

30 December, 2011 Roel van Lisdonk 5 Comments Uncategorized 11:38

I was creating an image in C# by using code similar to: public void SaveImage() { byte[] byteArray = null; // Put the bytes of the image here.... Image result = null; ImageFormat format =

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Solving: Windows Authentication fails, when using a host header and accessing IIS on the local box.

28 December, 2011 Roel van Lisdonk 0 Comments Uncategorized 11:12

If you are developing an ASP .NET website that uses Windows Authentication and add a host header in IIS to the ASP .NET web application, accessing the site on the local box, might not work.

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Solving: HttpContext.Current.User.Identity.Name is empty, when using Windows Authentication.

28 December, 2011 Roel van Lisdonk 1 Comment Uncategorized 11:02

If you want to use Windows Authentication in your ASP .NET website, you need to add the <authentication mode="Windows"/> tag in the Web.config. <system.web> <authentication mode="Windows"/> If the HttpContext.Current.user.Identity.Name is still empty. Check the authentication

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Transforming an input file to an output file in C#, by using XSLT.

22 December, 2011 Roel van Lisdonk 0 Comments Uncategorized 10:04

Just a code snippet for transforming an input file to an output file in C# by using XSLT: /// <summary> /// Transform an input file to an output file, by using XSLT. /// </summary> public

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How to convert a byte[] to an image in C# by using an extension method.

21 December, 2011 Roel van Lisdonk 0 Comments Uncategorized 08:54

To convert a byte array to an image in C#, you can use the following code: [TestMethod] public void Test() { byte[] bytes = new byte[100]; // Supply your bytes here. Image image = bytes.ToImage();

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How to: Convert an Image to a byte array in C#, by using a extension method.

20 December, 2011 Roel van Lisdonk 0 Comments Uncategorized 16:34

If you want to convert an Image to a byte array in C#, you can use the following extension method:   [TestMethod] public void Test() { Image image = null; // Supply your image here.

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How to serialize an object to string and deserialize a string back to an object in C# 4.0

20 December, 2011 Roel van Lisdonk 0 Comments Uncategorized 10:25

If you want to serialize an object to a string or want to deserialize a string back to an object, you can use the following class:   The XmlSerializationTask class using System; using System.IO; using

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How to: Adjust C# assembly probing path at runtime.

19 December, 2011 Roel van Lisdonk 1 Comment Uncategorized 13:21

When a assembly is not found, when using the standard probing method, an assembly resolve event is fired, allowing to load the assembly from a different file system path:   public void Test() { AppDomain

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How to deserialize an object containing collections from an App.config or Web.config in .NET 4.0 and C#

15 December, 2011 Roel van Lisdonk 2 Comments Uncategorized 11:00

Let says you want to store your application settings in an App.config or Web.config file and these settings should contain collections of settings, then use can use the following code to deserialize an object containing

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How to solve: The type or namespace name ‘log4net’ could not be found in .NET 4.0?

14 December, 2011 Roel van Lisdonk 0 Comments Uncategorized 15:35

  If you create a new .NET 4.0 console application in Microsoft Visual Studio .NET 2010 and add a reference to the Log4Net v1.2.10 dll, you can add the using statement [using log4net;], but after

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