Entity Framework .NET BuildContainsExpression Causas de datos interna Marco de error 1025 Proveedor

Question

Estoy tratando de obtener la siguiente consulta LINQ a trabajar en contra de la base de datos (3.5 SP1):

var labelIds = new List<int> { 1, 2 };
var customersAggregatedTransactionsByType =
    (from transactions in context.TransactionSet
    from customers in context.CustomerSet
        .Where(LinqTools.BuildContainsExpression<Billing.Customer, int>(u => u.LabelId, labelIds))
    from accounts in context.AccountSet
    where customers == accounts.Customer
        && accounts.Id == transactions.Account.Id
        && transactions.DateTime >= fromDate && transactions.DateTime < toDate
    group transactions.Amount
    by new
    {
        UserAccountId = transactions.Account.Id,
        TransactionTypeId = transactions.TransactionTypeId,
        BaseAssetId = accounts.BaseAssetId
    } into customerTransactions
    select customerTransactions).ToList();

Una vez que agrego Where(LinqTools.BuildContainsExpression<Billing.Customer, int>(u => u.LabelId, labelIds)) consigo la siguiente excepción:

System.InvalidOperationException:. Error del proveedor de datos .NET interna Marco 1025

Si quito buena Where(LinqTools.BuildContainsExpression<Billing.Customer, int>(u => u.LabelId, labelIds)) de todos.

Se apreciará Cualquier ayuda.

Gracias, Nir.

Answer 1

Trate:

        var labelIds = new List<int> { 1, 2 };
        var exp = LinqTools.BuildContainsExpression<Billing.Customer, int>(u => u.LabelId, labelIds);
        var customersAggregatedTransactionsByType =
             (from transactions in context.TransactionSet
              from customers in context.CustomerSet.Where(exp)
              from accounts in context.AccountSet
              where customers == accounts.Customer
                 && accounts.Id == transactions.Account.Id
                 && transactions.DateTime >= fromDate && transactions.DateTime < toDate
              group transactions.Amount
              by new
              {
                  UserAccountId = transactions.Account.Id,
                  TransactionTypeId = transactions.TransactionTypeId,
                  BaseAssetId = accounts.BaseAssetId
              } into customerTransactions
              select customerTransactions).ToList();

Se desea que el resultado en la consulta, no la llamada a LinqTools.BuildContainsExpression sí mismo.