public static IQueryable FindSource(Expression e)
{
var visitor = new QuerySourceExpressionVisitor();
visitor.Visit(e);
return(visitor.sourceQueryable);
}
static Type FindSourceType(Expression e)
{
var sourceQuery = QuerySourceExpressionVisitor.FindSource(e);
if (sourceQuery == null)
{
throw new NotSupportedException("Unable to identify an IQueryable source for this query.");
}
return(sourceQuery.ElementType);
}