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Pass parameter to Expression<Func<TEntity, bool>> filter …
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Jesús
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Jesús asked on 18 Dec 2014, 05:53 PM
I am using GenericRepository with this code ...  

public virtual IEnumerable<TEntity> Get(
    Expression<Func<TEntity, bool>> filter = null,
    Func<IQueryable<TEntity>, IOrderedQueryable<TEntity>> orderBy = null,
    string includeProperties = "")
{
    IQueryable<TEntity> query = dbSet;
 
    if (filter != null)
    {
        query = query.Where(filter);
    }
 
    query = includeProperties.Split(new[] {','}, StringSplitOptions.RemoveEmptyEntries).Aggregate(query, (current, includeProperty) => current.Include(includeProperty));
 
    return orderBy != null ? orderBy(query).ToList() : query.ToList();
}


And I want use this function in my Controller ...

public ActionResult Hojas_Read([DataSourceRequest] DataSourceRequest request)
{
    var usuario = _utHojas.UsuariosRepository.Get(u => u.Correo == User.Identity.Name).FirstOrDefault();
    .....
}


And in my debug window appears...

{u => (u.Correo == value(TaxiMetro.Web.Controllers.HojasController).User.Identity.Name)}

And it should be...

{u => (u.Correo == "jsanchco@gmail.com"}

 How I can fix this?

Thanks.

2 Answers, 1 is accepted

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Jesús
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answered on 19 Dec 2014, 05:07 PM
I answer myself ...
var name = User.Identity.Name;
ParameterExpression param = Expression.Parameter(typeof (Usuario), "h");
Expression boby = Expression.Equal(Expression.PropertyOrField(param, "Correo"),
      Expression.Constant(name, typeof(string)));
Expression<Func<Usuario, bool>> filter = Expression.Lambda<Func<Usuario, bool>>(boby, param);

var usuario = _utHojas.UsuariosRepository.Get(filter).FirstOrDefault();
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Boyan
Telerik team
answered on 22 Dec 2014, 05:01 PM
Hi Jesus,

Thank you for contacting us.

I am glad that currently things are working on your side. If you experiencing any further Telerik Data Access related issues do not hesitate to get back to us.

Regards,
Boyan
Telerik
 
OpenAccess ORM is now Telerik Data Access. For more information on the new names, please, check out the Telerik Product Map.
 
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Boyan
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