1) Create a property to store the last updated date, you can add it to Root item

2) Handle the content update event(i.e New, Save, Delete..). Create a class that inherit from ApplicationBase.

public class SaveUpdateDate : ApplicationBase
{
    public SaveUpdateDate()
    {
        Document.New += new Document.NewEventHandler(Document_New);
        Document.AfterSave += new Document.SaveEventHandler(Document_AfterSave);
    }

    void Document_AfterSave(Document sender, SaveEventArgs e)
    {
        //Save 
    }

    void Document_New(Document sender, umbraco.cms.businesslogic.NewEventArgs e)
    {

    }
}

Another option is traverse all the node to find the latest updated date.

Hi thanks for the reply,

I'm just a beginner in umbraco.. can you exactly tel me how to add the property to root item.. and where do i add this code??

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