Presentation @ Visual Studio 2010 community launch program

I have presented  "ASP.net page life cycle" at Visual Studio 2010 community launch program.

You can download the presentations from this link. this rapidshare link collected from Omi Azad blog.

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How can I get a value of a property from an anonymous type (C#)

Last day I have faced a problem when working with  "Anonymous Type". In development procedure I have got  result from a service which return object made of anonymous type. The problem arise when I need to access property of anonymous type. After made some r&d I have got the solution. Now share with you ....

Solution 1: (use reflection to retrieve the values of the following anonymous type)


var obj = new { ClientId = 7, ClientName = "Ahsan", Jobs = 12,City="Dhaka" };
System.Type type = obj.GetType();
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More generic solution:

public static T GetValueFromAnonymousType( object dataitem, string itemkey ) 
{
    System.Type type = dataitem.GetType();
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}

Example:
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The model backing the 'MyDBContext' context has changed since the database was created. Either manually delete/update the database, or call Database.SetInitializer with an IDatabaseInitializer instance. For example, the DropCreateDatabaseIfModelChanges strategy will automatically delete and recreate the database, and optionally seed it with new data.

Today I have faced a problem when working with a previous developed ASP.NET MVC application. Just copy the database(.sdf) from previous version to new version. I have changed some validation and business logic. But when run the application it shows me the following error:


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Solution 1:
However, even if you manually update the database to follow the model, this exception will still occur. The reason is that EF does not check model schema completely: tables, columns, keys, indexes etc.

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"This request has been blocked because sensitive information could be disclosed to third party web sites when this is used in a GET request. To allow GET requests, set JsonRequestBehavior to AllowGet."

After making some r & d I have found the solution:

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For more details about JSON Hijacking.

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