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Added quick-guide entry for how to create NamedRanges and NamedCells using HSSFName 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@353749 13f79535-47bb-0310-9956-ffa450edef68
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Amol S. Deshmukh 2005-07-13 13:15:05 +00:00
parent 60a05ad411
commit 3bb1a854df
1 changed files with 65 additions and 0 deletions
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src/documentation/content/xdocs/hssf/quick-guide.xml
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@ -46,6 +46,7 @@
<li><link href="#Graphics2d">Shapes and Graphics2d</link></li>
<li><link href="#Outlining">Outlining</link></li>
<li><link href="#Images">Images</link></li>
<li><link href="#NamedRanges">Named Ranges and Named Cells</link></li>
</ul>
</section>
<section><title>Features</title>
@ -970,5 +971,69 @@
patriarch.createPicture(anchor, loadPicture( "src/resources/logos/logoKarmokar4.png", wb ));
</source>
</section>
<anchor id="NamedRanges"/>
<section>
<title>Named Ranges and Named Cells</title>
<p>
Named Range is a way to refer to a group of cells by a name. Named Cell is a
degenerate case of Named Range in that the 'group of cells' contains exactly one
cell. You can create as well as refer to cells in a workbook by their named range.
When working with Named Ranges, the classes: org.apache.poi.hssf.util.CellReference and
&amp; org.apache.poi.hssf.util.AreaReference are used.
</p>
<p>
Creating Named Range / Named Cell
</p>
<source>
// setup code
String sname = "TestSheet", cname = "TestName", cvalue = "TestVal";
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet(sname);
sheet.createRow(0).createCell((short) 0).setCellValue(cvalue);
// 1. create named range for a single cell using areareference
HSSFName namedCell = wb.createName();
namedCell.setNameName(cname);
String reference = sname+"!A1:A1"; // area reference
namedCell.setReference(reference);
// 2. create named range for a single cell using cellreference
HSSFName namedCell = wb.createName();
namedCell.setNameName(cname);
String reference = sname+"!A1"; // cell reference
namedCell.setReference(reference);
// 3. create named range for an area using AreaReference
HSSFName namedCell = wb.createName();
namedCell.setNameName(cname);
String reference = sname+"!A1:C5"; // area reference
namedCell.setReference(reference);
</source>
<p>
Reading from Named Range / Named Cell
</p>
<source>
// setup code
String cname = "TestName";
HSSFWorkbook wb = getMyWorkbook(); // retrieve workbook
// retrieve the named range
int namedCellIdx = wb.getNameIndex(cellName);
HSSFName aNamedCell = wb.getNameAt(namedCellIdx);
// retrieve the cell at the named range and test its contents
AreaReference aref = new AreaReference(aNamedCell.getReference());
CellReference[] crefs = aref.getCells();
for (int i=0; i&lt;crefs.length; i++) {
HSSFSheet s = wb.getSheet(crefs[i].getSheetName());
HSSFRow r = sheet.getRow(crefs[i].getRow());
HSSFCell c = r.getCell(crefs[i].getCol());
// extract the cell contents based on cell type etc.
}
</source>
</section>
</body>
</document>