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POAn existing connection was forcibly closed by the remote host in WCF
 

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    <p>I have an abstract class called 'Template' defined as:</p> <pre><code>[DataContract] public abstract class Template { [DataMember] public virtual int? Id { get; set; } [DataMember] public virtual string Title { get; set; } [DataMember] public virtual byte[] TemplateDoc { get; set; } [DataMember] public virtual bool IsSystemTemplate { get; set; } } </code></pre> <p>Two derived classes: UserTemplate and SystemTemplate implements above abstract class, which are defined as:</p> <pre><code>public class UserTemplate : Template { [DataMember] public virtual Int32? OfficeId { get; set; } [DataMember] public virtual Int32? UserId { get; set; } protected UserTemplate() { } public UserTemplate(string title, byte[] templateDoc, string templateDocName, TemplateType templateType, int officeId, int? userId) { this.Title = title; this.TemplateDoc = templateDoc; this.IsSystemTemplate = false; this.OfficeId = officeId; this.UserId = userId; } } public class SystemTemplate : Template { [DataMember] public virtual Int32? MultiListGroupId { get; set; } protected SystemTemplate() { } public SystemTemplate(string title, byte[] templateDoc, string templateDocName, TemplateType templateType, int multiListGroupId) { this.Title = title; this.TemplateDoc = templateDoc; this.IsSystemTemplate = true; this.MultiListGroupId = multiListGroupId; } } </code></pre> <p>Now, when I try to call following service method: </p> <pre><code>List&lt;Template&gt; GetTemplatesByTemplateType(int officeId, int? userId, TemplateType templateType) </code></pre> <p>I get this error:</p> <blockquote> <p>System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host</p> </blockquote> <p>Is it because of the reason that I am trying to return an abstract class?<br> It runs fine if I try to call this method using unit test.</p>
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