I have created custom contol like below.
Custom Control Code(TestCustom.cs)
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
//SourceCode.Forms.Controls.Web.SDK.dll, located in the GAC of the smartforms server or in the bin folder of the K2 Designer web site
using SourceCode.Forms.Controls.Web.SDK;
using SourceCode.Forms.Controls.Web.SDK.Attributes;
using System.Configuration;
using System.Net;
using System.IO;
using System.Web.UI.HtmlControls;
namespace Mpa.Procurement.K2.CustomSmartFormControl.CustomSmartFormServerControl
{
 [ControlTypeDefinition("Mpa.Procurement.K2.CustomSmartFormControl.CustomSmartFormServerControl.TestCustom_Definition.xml")]
 public class TestCustom : BaseControl
 {
     private StringBuilder _htmlContent = new StringBuilder();
     public TestCustom()
     : base("div")
     {
}
     protected override void OnInit(EventArgs e)
     {
            Page.Response.Cache.SetCacheability(HttpCacheability.NoCache);
            base.OnInit(e);
     }
     protected override void OnPreRender(EventArgs e)
     {
            base.OnPreRender(e);            
            bool _designMode = base.State.Equals(SourceCode.Forms.Controls.Web.Shared.ControlState.Designtime);
            if (!_designMode)
            { 
                   _htmlContent.AppendLine("<input type='radio' name='testRadio' value='1' " + (Enabled ? "" : "diabled") + " /> Test");
            }
           else
           {
                 _htmlContent.AppendLine("[Test]");
           }
}
     protected override void RenderContents(HtmlTextWriter writer)
     {
           if (_htmlContent.Length <= 0)
           {
               _htmlContent.Append("[Test]");
           }
writer.Write(_htmlContent.ToString());
           base.RenderContents(writer);
     }
 }
}
Custom Control Definition(TestCustom_Definition.xml)
<?xml version="1.0" encoding="utf-8" ?>
   <ControlType>
      <Category>Display</Category>
      <Group>Mpa.Procurement.CustomControl</Group>
      <Name>TestCustom</Name>
      <DisplayName>Test Custom</DisplayName>
      <FullName>Mpa.Procurement.K2.CustomSmartFormControl.CustomSmartFormServerControl.TestCustom,        Mpa.Procurement.K2.CustomSmartFormControl</FullName>
      <Properties>
          <Prop ID="IsEnabled" friendlyname="Enabled" type="bool" category="General" refreshdisplay="true" setFunction="SetControlIsEnabled">
               <Value>true</Value>
          </Prop>
          <Prop ID="IsVisible" friendlyname="Visible" type="bool" category="General" refreshdisplay="true" setFunction="SetControlIsVisible">
                <Value>true</Value>
          </Prop>
      </Properties>
    </ControlType>
K2 Form Designer

Issue
Disable/Hide control rules are not working for Custom Control.
Please help me to solve this issue.
