Serialize Linq entities

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Hi,

My problem is the following. I am retrieving data from the database using Linq to sql and then binding that data to controls on my windows forms. The next part of my application I want to get the changes made to the data and serialize then to either XML or binary. Then when i load the application the second time i want to deserialize that data and commit the changes that where made in the previous "session".

I am trying to serialize my Linq to sql entities but it's no use. Maybe you guys can point me to an article or tutorial or provide some guidance as i tried many things and looking trough the internet for possible solutions and cant find anything.

Your help is greatly appreciated guys.

Thx a lot.

Posted 16-Oct-12 7:13am

cdpace

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Parwej Ahamad · Accepted Answer · 2012-10-16T07:34:00

If you used Entity Framework, then all entity become serializable. So try serialization and De-serialization process:

C#

SomeModel model = ...
var serializer = new XmlSerializer(typeof(SomeModel));
using (var writer = XmlWriter.Create("foo.xml"))
{
    serializer.Serialize(writer, model);
}
and to deserialize back a XML to an existing model:

var serializer = new XmlSerializer(typeof(SomeModel));
using (var reader = XmlReader.Create("foo.xml"))
{
    var model = (SomeModel)serializer.Deserialize(reader);
}

cdpace · Accepted Answer · 2012-10-16T07:50:00

Solution 2

Yes will this keep track of the inserts and updates that have been done? Because in my i case i want to temporary save the data and then commit the changes at a later time.

Posted 16-Oct-12 7:50am

cdpace

Comments

Parwej Ahamad 16-Oct-12 14:00pm

It's depend the how you are managing your DBContext object, fist look into this URL about the lifecycle of DBContext then you will able to implement your scenario:
http://www.west-wind.com/weblog/posts/2008/Feb/05/Linq-to-SQL-DataContext-Lifetime-Management

Parwej Ahamad 16-Oct-12 14:07pm

Also look for Unito Of Work pattern:
http://drc.ideablade.com/xwiki/bin/view/Documentation/unit-of-work-pattern-and-persistence-ignorance

cdpace 22-Nov-12 3:28am

Thx Parwej I appreciate your help.