ALL. I have a question to ask for your help.I want to make a ComboBox which includes two zones' name,when the value changes to be zone A ,I want to make the map changes to a new map about zone A instead of the default,and at the same time the layers in toc changes also.The same to zone B. (I do it in a complete project.The trouble is that the program adds basemaps and operationallayers by config-all.xml by default,so if I add layer to it ,it will total adds in ,I am confused) Thank you. --Anieta