final IModel paramsModel = new PropertyModel(model, "connectionParameters");
FileParamPanel file = buildFileParamPanel(paramsModel);
add(file);
add(new CharsetPanel("charset", new MapModel(paramsModel, DBFCHARSET.key),
new ParamResourceModel("charset", this), false));
add(new CheckBoxParamPanel("memoryMapped", new MapModel(paramsModel, MEMORY_MAPPED.key),
new ParamResourceModel("memoryMapped", this)));
add(new CheckBoxParamPanel("cacheMemoryMaps", new MapModel(paramsModel,