How to attach one SqlCacheDependency to several Cache item?
<pre><code>SqlConnection sqlConn = new SqlConnection(m_connectionString);
m_cmd = sqlConn.CreateCommand();
m_cmd.CommandText = "Select id,name from dbo.instances";
m_cmd.Notification = null;
SqlCacheDependency cacheDepen = new SqlCacheDependency(m_cmd);

using (SqlDataAdapter sda = new SqlDataAdapter(m_cmd)) 
{
     DataSet ds = new DataSet();
     sda.Fill(ds, "instance");
     Cache.Insert("instance", ds.Tables["instance"],cacheDepen);
     Cache.Insert("timeNow", DateTime.Now.ToLongTimeString(), cacheDepen);
}
</code></pre>

<p>I'm create a web application by SqlCacheDependency, Sql Server makes use of Service Broker to notify me when data was updated.
It throw exception "An attempt was made to reference a CacheDependency object from more than one Cache entry" at last two line.
What should I do for the exception?</p>
