speed reading tool
Sunday, March 29th, 2009
How to display a specific page or specific pages with Java reporting tool?
ometimes, in real business of web report, the volume of data is very huge. Then, when reading, displaying and exporting the report, problems like low speed, memory overflow, and system crash may appear.
Then, how to solve it? Besides,I want to know that how to display a specific page or several specific pages.
Hi!
You can use RAQ Report. RAQ Report provides advanced paging tag extHtml which expands the functions of original Html tag, and realizes reading, displaying, and exporting data by page. Therefore, it decreases memory footprint,enhances operating efficiency, and avoids memory overflow.
There are two solutions to display a specific page or several specific pages with RAQ Report.
1. Supposed that the number of default cache page is 100, set the value of cachePageNum as 1. Input expression “beginRow/20+1” in a cell to display current page number, and input the expression “totalCount/20” in a cell to display total number of pages. If the value of cachePageNum is not set as 1, the value of beginRow will not change, and the current page number will be 1 all the time.
2. Set the data type of a cell as html, and input the js code below to the cell.
Then the current page number will be displayed when clicking “next page”.
Input the expression “=floor(query(‘SELECT count(*) FROM Dataset ’/20,0)+1” in a cell to display total number of pages.
For more details and graphic illustration, you can refer to my blog at http://freezea.blogspot.com/.
Good luck.
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