code: public DynamicReportBuilder setWhenNoData(String text, Style style, boolean showTitle, boolean showColumnHeader) {
          this.report.setWhenNoDataStyle(style);
          this.report.setWhenNoDataText(text);
          this.report.setWhenNoDataType(DJConstants.WHEN_NO_DATA_TYPE_NO_DATA_SECTION);
          this.report.setWhenNoDataShowColumnHeader(showColumnHeader);
          this.report.setWhenNoDataShowTitle(showTitle);
          return this;
      }
docs: Defines the text to show when the data source is empty.<br>
  
  @param text
  @param style            : the style of the text
  @param showTitle        : if true, the title is shown
  @param showColumnHeader : if true, the column headers are shown
  @return A Dynamic Report Builder