private static LambdaExpression BindFilterClause(FilterBinder binder, FilterClause filterClause, Type filterType)
{
LambdaExpression filter = binder.BindExpression(filterClause.Expression, filterClause.RangeVariable, filterType);
filter = Expression.Lambda(binder.ApplyNullPropagationForFilterBody(filter.Body), filter.Parameters);
Type expectedFilterType = typeof(Func <,>).MakeGenericType(filterType, typeof(bool));
if (filter.Type != expectedFilterType)
{
throw Error.Argument("filterType", SRResources.CannotCastFilter, filter.Type.FullName, expectedFilterType.FullName);
}
return(filter);
}
private static LambdaExpression BindOrderByClause(FilterBinder binder, OrderByClause orderBy, Type elementType)
{
LambdaExpression orderByLambda = binder.BindExpression(orderBy.Expression, orderBy.RangeVariable, elementType);
return(orderByLambda);
}