New Post: Is there any volunteer to join me?
Hi tonyqus, I am a programmar in C# for 5 years and I'd like to do somethine for npoi. If there is any thing I can do to assist in feature enhancement, let me know. email: dongyongjing@163.com
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New Post: How can I obtain Scaling mode: Reduce/Enlarge printout?
HI all, I've a problem with NPOI. I need to change the print options of my worksheet so that Openoffice can print it reading Scaling mode: Reduce/Enlarge printout (last option in the following...
View ArticleNew Post: Saving large workbooks
I have the same problem :( MemoryStream WriteToStream(){ //Write the stream data of workbook to the root directory MemoryStream file = new MemoryStream(); hssfworkbook.Write(file); return file; }...
View ArticleNew Post: excel data corruption
Read xlsx template , modify xlsx data, then save to excel file, and then open saved xlsx file ; Excel program will prompt repair data, opened excel file format and content have changed OpenFileDialog...
View ArticleNew Post: 修改xlsx文件后保存会丢失数据和格式
1读物xlsx文件或xlsm文件 2修改xlsx中的数据然后保存其他文件 3打开保存文件,Excel程序会提示:在文件中发现不可读取的内容。是否恢复此工作薄?如果信任此工作薄的来源,请选择是 4强制信任后打开,发现文件和原文件格式丢失 5上述问题再excel2003中不存在,只在excel2007存在OpenFileDialog dialog = new OpenFileDialog();...
View ArticleNew Post: Worksheets right to left
Hello, I'm using your wonderful library and I'm very pleased with it! One little but big thing that does bother me is the lack support of RTL. A1 is on the upper left corner while my customer wants it...
View ArticleNew Post: CreateCellComment gives System.ArgumentException: An item with the...
This happens only in some cells now and my template worked fine before this few weeks. public static void SetComment(ref ISheet w, int row, int col, string text) { try {...
View ArticleNew Post: I can't get it work using VB.NET
The following code is not working: Try Dim workbook = New HSSFWorkbook() Dim sheet As HSSFSheet = workbook.CreateSheet("Sheet1") Dim row As HSSFRow = sheet.CreateRow(0)...
View ArticleNew Post: Getting Different Result When Running Code in Visual Studio 2012...
Visual Studio Express 2012 for Web. Windows Server 2008 R2. IIS 7.0. I have code that creates an Excel workbook from the results of a SQL query and then offers to open or download the Excel file. This...
View ArticleNew Post: Convert/Save HSSFWorkbook as XSSFWorkbook
public void SaveExcel() { try { FileStream fwriter = new FileStream("c:\\ss.xlsx",FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite); MemoryStream file = new MemoryStream();...
View ArticleNew Post: Will SetActiveCell be implemented in 2.0? Stress test proves...
I did a quick stress test of npoi 2.0 beta and I simply wrote a string in the first cell of each row up to 100k. The output was as follows: Start time: 5/14/2013 5:05:39 PM [00:00:00.0170017] 0 rows...
View ArticleNew Post: Will SetActiveCell be implemented in 2.0? Stress test proves...
I tried using cell.SetAsActiveCell() and there was no improvement to performance... tiny bit worse actually. Start time: 5/14/2013 6:36:50 PM [00:00:00.0190019] 0 rows written [00:00:02.8392839] 10000...
View ArticleNew Post: Stress test of XSSF proves exponential time (performance concerns)
Also, if you simply change XSSFWorkbook to HSSFWorkbook (Still using NPOI 2.0 beta)... these are the results Start time: 5/15/2013 11:09:36 AM [00:00:00.0270027] 0 rows written [00:00:00.0540054] 10000...
View ArticleCreated Issue: Invalid row number (65536) outside allowable range (0..65535)...
Hi, I need to create a Excel file greater than 65536 rows, the library is already prepared for this? Hope you can help me.Thanks in advance.
View ArticleCommented Issue: Invalid row number (65536) outside allowable range...
Hi, I need to create a Excel file greater than 65536 rows, the library is already prepared for this? Hope you can help me.Thanks in advance.Comments: ** Comment from web user: prege ** Have your tried...
View ArticleCommented Issue: Invalid row number (65536) outside allowable range...
Hi, I need to create a Excel file greater than 65536 rows, the library is already prepared for this? Hope you can help me.Thanks in advance.Comments: ** Comment from web user: DotNetDeveloperCR **...
View ArticleClosed Issue: Access issue creating worksheet [11383]
The following error occurs when we try to create a worksheet. The issue is resolved by setting IIS 7.0 LoadUserProfile to true. We are trying to understand why this is needed and teh secruity...
View ArticleClosed Issue: [HSSF]Comment is not saved correctly while using a xls template...
If you read an existing xls template with comment in it and then save it as a new xls, the comment will be lost and Excel will say 'file data lost' in some cases. This is confirmed as a bug in all...
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