When an eventHandler is added, in my case to partially refresh a control onChange the following error is logged in the "Problems" tab
<span style="color:#ff0000;"><em>Description Resource Path Location Type</em></span></div>
<span style="color:#ff0000;"><em>The unknown tag xe:eventHandler cannot be used as a control. ccEventDetails.xsp eventbookings_master.ntf/CustomControls line 21 com.ibm.designer.domino.ide.resources.designerproblem</em></span></div>
This is my code
<span style="color:#0000ff;"><em><xe:djComboBox id="eventList" </em></span></div>
<span style="color:#0000ff;"><em>autoComplete="true" ignoreCase="true"></em></span></div>
<span style="color:#0000ff;"><em><xp:selectItems></em></span></div>
<span style="color:#0000ff;"><em><xp:this.value><![CDATA[#{javascript:var val = EventList.getColumnValues(0);</em></span></div>
<span style="color:#0000ff;"><em>var val2 = [""];</em></span></div>
<span style="color:#0000ff;"><em>return val2.concat(val);}]]></xp:this.value></em></span></div>
<span style="color:#0000ff;"><em></xp:selectItems></em></span></div>
<u><span style="color:#0000ff;"><em><xe:eventHandler event="onChange" submit="true"</em></span></u></div>
<u><span style="color:#0000ff;"><em>refreshMode="partial" refreshId="infoPannel"></em></span></u></div>
<u><span style="color:#0000ff;"><em></xe:eventHandler></em></span></u></div>
<span style="color:#0000ff;"><em></xe:djComboBox></em></span></div>