Linq xml updating file

11 Dec

On most versions of windows you must first save these files to your local machine, and then unblock the file in order to read it.

To unblock a file, right click on it, and select properties, and then select the ‘unblock’ button.

Rather than use an explicitly defined “My Product” class to represent each custom-shaped row of data retrieved from the database, I can instead use the anonymous type feature to implicitly define a new type with 4 properties to represent my custom shaped data like so: In the code above I’m declaring an anonymous type as part of the select clause within my LINQ expression, and am having the compiler automatically create the anonymous type with 4 properties (Id, Name, Unit Price and Total Revenue) – whose property names and type values are inferred from the shape of the query.

I’m then using the new “var” keyword within C# to programmatically refer to the IEnumerable sequence of this anonymous type that is returned from the LINQ expression, as well as to refer to each of the anonymous type instances within this sequence when I programmatically loop over them within a foreach statement later in my code.

For example, I could use the var keyword like below to declare three variables: The compiler will infer the type of the “name”, “age” and “male” variables based on the type of their initial assignment value (in this case a string, an integer, and a boolean). Net Question Answer site, specially started to allow visitors of this site ask their doubts and queries. Just click the Ask Now button and ask your question now.Note: 2008 and older issues are only available as files.This is where anonymous types are very useful, as they allow you to concisely define a new type to use inline within your code.For example, assume I use the LINQ to SQL object relational mapper designer within “Orcas” to model the “Northwind” database with classes like below: I can then use the below code to query the Product data in my database, and use the projection/transformation capability of LINQ to custom shape the data result to be something other than the “Product” class above.