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  • NHibernate 数字类型进行模糊查询

    I have a NHibernate search function where I receive integers and want to return results where at least the beginning coincides with the integers, e.g.

    received integer: 729
    returns: 729445, 7291 etc.

    The database column is of type int, as is the property "Id" of Foo.

    But

    int id = 729;
    
    var criteria = session.CreateCriteria(typeof(Foo))
    
    criteria.Add(NHibernate.Criterion.Expression.InsensitiveLike("Id", id.ToString() + "%"));
    
    return criteria.List<Foo>();
    
    

    does result in an error (Could not convert parameter string to int32). Is there something wrong in the code, a work around, or other solution?

    int id = 729;
    
    var criteria = session.CreateCriteria(typeof(Foo))
    
    criteria.Add(NHibernate.Criterion.Expression.InsensitiveLike("Id", id.ToString() + "%"));
    
    return criteria.List<Foo>();

    How about this:

    int id = 729;
    
    var criteria = session.CreateCriteria(typeof(Foo))
    criteria.Add(Expression.Like(Projections.Cast(NHibernateUtil.String, Projections.Property("Id")), id.ToString(), MatchMode.Anywhere));
    
    return criteria.List<Foo>();
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  • 原文地址:https://www.cnblogs.com/ulex/p/12360549.html
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