Why is Linq2Sql creating a new connection for every sproc call and keeping it open?

Question

This wasn't happening before, so I'm assuming something I did is causing this, yet I can't see what it could be.

I have linq2sql set up against a sql server 2005 database. I'm only using stored procedures.

Most of my procedures are working fine, but this one particular update proc sometimes get's fired a few hundred times in a row (cloning the details of a header record).

This is causing timeouts, and running a script to see open connections shows my app connections all sleeping and taking up space.

Any thoughts, advice?

My datacontext is setup as a static variable in a service class:

private static WarehouseSystemDataContext dc
{
    get
    {
        // It is being passed a closed SqlConnection object
        WarehouseSystemDataContext _dc = 
            new WarehouseSystemDataContext(Constants.getWarehouseSystemConn());
        _dc.ObjectTrackingEnabled = false;
        _dc.CommandTimeout = 600;

        return _dc;
    }
}

Answer 1

You are creating a new connection each time the datacontext is referenced

private static WarehouseSystemDataContext _dc
private static WarehouseSystemDataContext dc
{
    get
    {
        if(_dc == null)
        {
        // It is being passed a closed SqlConnection object
        _dc = new WarehouseSystemDataContext(Constants.getWarehouseSystemConn());
        _dc.ObjectTrackingEnabled = false;
        _dc.CommandTimeout = 600;
        }
        return _dc;

    }
}