// <summary>
// Creates a new query instance using the given LINQ expresion.
// The current query is used to produce the context for the new query, but none of its logic
// is used.
// </summary>
// <param name="expression"> Expression forming the query. </param>
// <returns> ObjectQuery instance implementing the given expression. </returns>
IQueryable IQueryProvider.CreateQuery(Expression expression)
{
Check.NotNull(expression, "expression");
if (!typeof(IQueryable).IsAssignableFrom(expression.Type))
{
throw new ArgumentException(Strings.ELinq_ExpressionMustBeIQueryable, "expression");
}
// Determine the type of the query instance by binding generic parameter in Query<>.Queryable
// (based on element type of expression)
var elementType = TypeSystem.GetElementType(expression.Type);
return(CreateQuery(expression, elementType));
}
