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    <p>Edited to reflect changed answer:</p> <pre><code>public class Question { public virtual string QuestionId { get; set; } public virtual string Text { get { var currentculture = CultureInfo.CurrentCulture.Name; return Translations .Where(trans =&gt; trans.CultureName == currentculture) .Select(trans =&gt; trans.Text) .FirstOrDefault(); } set { var currentculture = CultureInfo.CurrentCulture.Name; var translation = Translations .Where(trans =&gt; trans.CultureName == currentculture) .FirstOrDefault(); if (translation == null) { translation = new QuestionTranslation(); Translations.Add(translation); } translation.Text = value; } } public virtual string Hint { get { var currentculture = CultureInfo.CurrentCulture.Name; return Translations .Where(trans =&gt; trans.CultureName == currentculture) .Select(trans =&gt; trans.Hint) .FirstOrDefault(); } set { var currentculture = CultureInfo.CurrentCulture.Name; var translation = Translations .Where(trans =&gt; trans.CultureName == currentculture) .FirstOrDefault(); if (translation == null) { translation = new QuestionTranslation(); Translations.Add(translation); } translation.Hint = value; } } protected virtual ICollection&lt;QuestionTranslation&gt; Translations { get; set; } } class QuestionTranslation { public virtual int Id { get; protected set; } public virtual string CultureName { get; set; } public virtual string Text { get; set; } public virtual string Hint { get; set; } } &lt;class name="Question" xmlns="urn:nhibernate-mapping-2.2"&gt; &lt;id name="QuestionId" column="QuestionId"/&gt; &lt;bag name="Translations" table="QuestionTranslation" lazy="true"&gt; &lt;key&gt; &lt;column name="QuestionId"/&gt; &lt;/key&gt; &lt;one-to-many class="QuestionTranslation"/&gt; &lt;/bag&gt; &lt;/class&gt; &lt;class name="QuestionTranslation" table="QuestionTranslation" xmlns="urn:nhibernate-mapping-2.2"&gt; &lt;id name="QuestionTranslationId"/&gt; &lt;many-to-one name="ParentQuestion" column="QuestionId"/&gt; &lt;/class&gt; </code></pre> <p>if you have a lot of translations then change <code>ICollection&lt;QuestionTranslation&gt; Translations { get; set; }</code> to <code>IDictionary&lt;string, QuestionTranslation&gt; Translations { get; set; }</code> and map as <code>&lt;map&gt;</code> but normally the above should do it</p>
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    1. COThanks for your response... I'll test your solution and get back to you.
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    2. COI have rewritten the question so better explain my problem because I felt I was not clear when I wrote the question. Do you mind reviewing the question and modifying your response accordingly?
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    3. COI've used your answer as start point for my own solution. I'm not sure the mappings will handle inserting/updating translations, for example there is no mapping for the QuestionTranslationId column on the translation table.
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