NOPI使用手冊

有些客戶匯出或者匯入時，對excel的格式要求很高，就需要用到nopi。**樣例：

imports

system
imports
system.web
imports
system.web.ui
imports
system.web.ui.webcontrols
imports
system.io
imports
npoi.hssf.usermodel
imports
npoi.hpsf
imports
npoi.poifs.filesystem
imports
npoi.ss.usermodel
partial
public
class
_default
inherits
system.web.ui.page
protected
sub page_load(byval sender as
object, byval e as
eventargs)
end sub
'點選按鈕後輸出檔案資料流
protected
sub button1_click(byval sender as
object, byval e as
eventargs)
dim filename as
string = "
test.xls
"response.contenttype = "
"response.addheader(
"content-disposition
", string.format("
attachment;filename=
", filename))
response.clear()
'呼叫初始化excel檔案
initializeworkbook()
'生成資料
generatedata()
'輸出excel檔案流
response.binarywrite(writetostream().getbuffer())
response.[
end]()
end sub
'定義workbook
private hssfworkbook as
hssfworkbook
'private
function writetostream() as
memorystream
'write the stream data of workbook to the root directory
dim file as
newmemorystream()
hssfworkbook.write(file)
return
file
end function
'生成資料
private
subgeneratedata()
'生成乙個sheet
dim sheet1 as isheet = hssfworkbook.createsheet("
sheet1")
'迴圈向sheet裡面新增資料
sheet1.createrow(0).createcell(0).setcellvalue("
this is a sample")
dim x as
integer = 1
for i as
integer = 1
to15
dim row as irow =sheet1.createrow(i)
for j as
integer = 0
to14
row.createcell(j).setcellvalue(system.math.max(system.threading.interlocked.increment(x), x - 1
)) 
next
next
end sub
'初始化乙個workbook（活動工作表）
private
subinitializeworkbook()
hssfworkbook = new
hssfworkbook()
'''/create a entry of documentsummaryinformation
dim dsi as documentsummaryinformation =propertysetfactory.createdocumentsummaryinformation()
dsi.company = "
npoi team
"hssfworkbook.documentsummaryinformation =dsi
'''/create a entry of summaryinformation
dim si as summaryinformation =propertysetfactory.createsummaryinformation()
si.subject = "
npoi sdk example
"hssfworkbook.summaryinformation =si
end sub
end class

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