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POBinding IList<IMyInterfaceType> doesn't display members of Interfaces that IMyInterface inherits
 

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    <p>I'm binding IList to a GridView. IMyInterface looks like</p> <pre><code>public interface IMyInterface: IHasTotalHours, IHasLines { DateTime GoalStartDate { get; set; } DateTime GoalEndDate { get; set; } } </code></pre> <p>I bind an instance to a Grid like this:</p> <pre><code>IList&lt;IMyInterface&gt; instance= GetMyData(); myGrid.DataSource = instance; myGrid.DataBind(); </code></pre> <p>When bind this to the grid, the only members that show up in the grid are the direct members of IMyInterface: GoalStartDate and GoalEndDate.</p> <p>Why is that? How do I get the grid to display the members of the other interfaces it inherits?</p> <p><strong>Update</strong> The inherited interfaces define simple data properties like</p> <pre><code>public interface IHasTotalHours { string Description { get; set; } int Hours{ get; set; } } public interface IHasLines { double TotalLines { get; set; } double LinesPerHour { get; set; } } </code></pre> <p>There is a class that implements IMyInterface:</p> <pre><code>public class MyClass : IMyInterface { public string Description { get; set; } public int Hours { get; set; } public double TotalLines { get; set; } public double LinesPerHour { get; set; } public DateTime GoalStartDate { get; set; } public DateTime GoalEndDate { get; set; } } </code></pre> <p>These are cast as IMyInterface, and returned in the list that I'm binding to the GridView.</p>
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    2. COAlso, how does the class that implements IMyInterface look like?
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