WPF Data Virtualization

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I have a WPF DataGrid for which data comes from a stored procedure. I want to know how can I virtualize that data?. I am using ADO.NET Entity Framework. My data in the database changes regularly and it needs to be fetched regularly through my stored procedure. Thanks in Advance.

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Try to have a look at this post in order to see if it is useful to you. It is a generic solution to virtualize a collection. There is a sample too. Basically it works by proxing the data inside the collection to intercept when the UI observe the element, when it occours, a page is fetched. The only drawback is that the entity in the collection as to be declared as "proxable", so it must be public and with virtual properties.