c# - Updating an exiting excel sheet using epplus giving error -


i want update existing .xlsx file using epplus. have open office installed on system. want open sample.xlsx, created epplus first time , if file exists, updates it. using below code updating file, i'm getting

general input/output error

when trying open file using process.start("...")

excelpackage l_excelpackg = null;  excelworksheet l_excelsheet = null; //update existing file  fileinfo l_fileinfo = new fileinfo(@"c:\\files\\sample.xlsx"); l_excelpackg = new excelpackage(l_fileinfo); excelworkbook l_workbook = l_excelpackg.workbook; //get 10th sheet of excel update //1 9 sheets keep unchanged  l_excelsheet = l_workbook.worksheets[10]; l_excelsheet.cells.clear();  //first row having column names foreach (datacolumn l_dccolumn in p_dtselectedrows.columns) {     l_excelsheet.cells[1, l_intcolums].value =      p_dtselectedrows.columns[l_dccolumn.columnname].tostring();     l_excelsheet.cells[1, l_intcolums].style.font.bold = true;     l_intcolums++; }  byte[] l_bytearr = l_excelpackg.getasbytearray(); file.writeallbytes(p_strfilepath, l_bytearr);   processstartinfo l_objprocess = new processstartinfo(p_strfilepath); process.start(l_objprocess); l_excelpackg.dispose();

please suggest changes required in code?


Comments

Post a Comment

Popular posts from this blog

android - Get AccessToken using signpost OAuth without opening a browser (Two legged Oauth) -

i using signpost oauth access data magento server. have read various tutorials on same , reach point open browser user can enter credentials. however, per requirement have automate part. hence, user should not browser page. have set-up done on server side ( magento ), hit url , returned call page. same through program in android. i have tried below, consumer = new commonshttpoauthconsumer(key, secret); provider = new commonshttpoauthprovider(oauth_init_url,access_token_url, authorize_url); try { provider.retrieverequesttoken(consumer, oauth.out_of_band); log.d("tokens" , consumer.gettoken() + " -- " + consumer.gettokensecret()); } and request tokens. dont know how bypass next step. tried directly accessing accesstoken (stupid of me) provider.retrieveaccesstoken(consumer, "mycallback://callback"); no luck, ends in oauth.signpost.exception.oauthnotauthorizedexception: authorization failed (server replied 401). ...
Read more

org.mockito.exceptions.misusing.InvalidUseOfMatchersException: mockito -

getting error org.mockito.exceptions.misusing.invaliduseofmatchersexception: invalid use of argument matchers! 1 matchers expected, 2 recorded. exception may occur if matchers combined raw values: //incorrect: somemethod(anyobject(), "raw string"); when using matchers, arguments have provided matchers. example: //correct: somemethod(anyobject(), eq("string matcher")); at when( getprogramservice .callservice(any(getprogramtype.class))) .thenreturn(jaxbresponse); please explain error , possible resolution the code posted looks fine; don't see problem it. code before or above causing exception. key here: invalid use of argument matchers! 1 matchers expected, 2 recorded. any , used above, doesn't return "special kind of null" or "special kind of getprogramtype"; don't exist. instead, returns null , side effect puts matcher on stack. whe...
Read more

google shop client API returns 400 bad request error while adding an item -

i'm working on solution add items in google shopping market java application. following tutorial real mess because of missing classes of laste release, after setting 1.5-beta maven managed make base example typecheck correctly classes. still can make simple task of adding 1 item. instead of posting whole code i'm posting part creates product feed. private product createproduct(string id) { product product = new product(); product.title = "red wool sweater"; product.content = new content( "text", "comfortable , soft, sweater keep warm on " + "cold winter nights. red , blue stripes."); product.appcontrol = new appcontrol(); product.appcontrol.addrequireddestination("productads"); product.externalid = id; product.lang = "it"; product.country = "it"; product.condition = "nuovo"; product.price = new price("eu...
Read more