I was able to set marker property,I found no way to change the property of marker in ipreport map properties and the edit right click. To resolve this issue I made changes in the xml of report and set marker item property for icon there ,the following changes I did was: <mp:itemProperty name="icon"><valueExpression><![CDATA["http://maps.google.com/mapfiles/ms/icons/blue-dot.png"]]></valueExpression></mp:itemProperty>