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POInvalidcastexception error while using set or bag cascading
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  1. POInvalidcastexception error while using set or bag cascading
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    copied!<p>I have a parent class which contains a child object. I am using set to save the child object when parent is saved. I m not sure whether set is used for just saving a child object. And im getting this error below</p> <p>System.InvalidCastException: Unable to cast object of type 'x' to type 'Iesi.Collections.ISet'</p> <p>Does anybody knows the solution.</p> <p> </p> <pre><code>&lt;class name="Customer" table="Customers" lazy="false" dynamic-update="true"&gt; &lt;id name="Id" column="CustomerID" type="Guid" &gt; &lt;generator class="guid.comb" /&gt; &lt;/id&gt; &lt;property name="Name" column="CustomerName" type="String" length="50" not-null="true" /&gt; &lt;bag name="users" table="Users" cascade="all-delete-orphan"&gt; &lt;key column="CustomerID" /&gt; &lt;one-to-many class="User" /&gt; &lt;/bag&gt; &lt;set name="customerPreferences" table="Preferences" cascade="all-delete-orphan"&gt; &lt;key column="CustomerID" /&gt; &lt;one-to-many class="CustomerPreferences" /&gt; &lt;/set&gt; &lt;/class&gt; </code></pre> <p></p> <p>Entity class: public class Customer { private Guid _id; private string _name; private IList _users = new List(); private CustomerPreferences _customerPreferences;</p> <pre><code> public Guid Id { get { return _id; } set { _id = value; } } public string Name { get { return _name; } set { _name = value; } } public CustomerPreferences CustomerPreferences { get { return _customerPreferences; } set { _customerPreferences = value; } } public IList&lt;User&gt; Users { get { return _users; } set { _users = value; } } </code></pre>
 

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