Birt uses scripts to change Background coloring

Eclipse Birt changes the background color of data rows
For the data area in the report, how can we implement the following to achieve a different color for every row:
1. Hover your mouse over the table and select row detail;
2. Select the script tab to open the Birt script editing window;
3. Select onprepare from the drop-down list and add the following Javascript script:
VaR COUNT = 0;
4. Select oncreate from the drop-down list and add the following Javascript script:
Count ++;
If (count % 2 = 0 ){
This. getstyle (). backgroundcolor = "# efefef ";
} Else {
This. getstyle (). backgroundcolor = "# d4d0c8 ";
}
5. Save and use web reviewer for preview. The data can be displayed by page. Do not use the preview tab for browsing. The browsing effect of this tab is not paging. Publish to the web project. You can also display it by page.