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POFluent NHibernate: Index was out of range exception with ReferencesAny mapping
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  1. POFluent NHibernate: Index was out of range exception with ReferencesAny mapping
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    copied!<p>I'm trying to add a new record to database via creating a new object :</p> <pre><code>using (var session = conn.OpenNewSession()) { using (var tran = session.BeginTransaction()) { TableHours hours = new TableHours(periodId, level, levelId.ToString(), levelTblRef); hours.WorkHours = 10; session.SaveOrUpdate(hours); tran.Commit(); //Exception thrown here } } </code></pre> <p>System.ArgumentOutOfRangeException is thrown after transaction.Commit() : "Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index"</p> <p>The error as I understand happens because of complicated mapping:</p> <pre><code>public class TableHours { public virtual int SaleMonthId { get; protected set; } public virtual int Level { get; protected set; } public virtual string LevelId { get; protected set; } public virtual Level Lvl { get; protected set; } public virtual decimal WorkHours { get; set; } //..other methods public TableHours(int saleMonthId, int level, string levelId, Level lvl) { this.SaleMonthId = saleMonthId; this.Level = level; this.LevelId = levelId; this.Lvl = lvl; } } </code></pre> <p>And the mapping:</p> <pre><code>public class TableHoursMap : ClassMap&lt;TableHours&gt; { public TableHoursMap() { Table("TableHours"); CompositeId() .KeyProperty(x =&gt; x.SaleMonthId) .KeyProperty(x =&gt; x.Level) .KeyProperty(x =&gt; x.LevelId, "Id"); Map(x =&gt; x.SaleMonthId); Map(x =&gt; x.Level); Map(x =&gt; x.LevelId, "Id"); Map(x =&gt; x.WorkHours); ReferencesAny(x =&gt; x.Lvl) .IdentityType&lt;string&gt;() .EntityTypeColumn("Level") .EntityIdentifierColumn("Id") .AddMetaValue&lt;Level5&gt;("5") .AddMetaValue&lt;Level4&gt;("4") .Not.Insert() .Not.Update() .Cascade.None() .ReadOnly(); } } </code></pre> <p>I.e. Lvl field reference to table Level4 or Level5 table depending on Level value (4 or 5). The select works perfect. But when I'm trying to SaveOrUpdate I have the error above.</p> <p>And small note. Without next attributes:</p> <pre><code>.Not.Insert() .Not.Update() .Cascade.None() .ReadOnly(); </code></pre> <p>I have Index out of range error referenced to Lvl field. So that's why I guess this is the one who blame.</p> <p>The Level4 and Level5 classes inherit from Level class.</p> <p>What am I doing wrong?</p>
 

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