How to connect between two document libraries in different webapplications using BCS?

Question

In Sharepoint 2010 , How to connect between two document libraries in different webapplications using BCS?. The webapplications has sitecollections and sites in it and the sites are getting created programmatically through custom UI.The document libraries mentioned above are situated in the programmatically created sites.

Answer 1

Anu,

You should create an Event Receiver on your 1st Document Library and pro-grammatically perform the changes on the 2nd document library...

Read about Event Receivers here

And inside the ItemAdded or ItemUpdated event, you can replicate the changes programmatically to the 2nd document library, pseudo code can look like:

public override void ItemAdded(SPItemEventProperties properties)
{
    if (properties.ListTitle == "FirstDocumentLibrary")
    {
        using (SPSite oSiteCollection = new SPSite(strUrl))
        {
             using(SPWeb oWebsite = oSiteCollection.OpenWeb())
             {
                 //Get file from properties.ListItem

                 //Upload file code
             }
        }
    }
}