Truncate CSV file in C# -


i have csv file 48 rows of integers. using openfiledialog feature of visual c# allow user select file. want have program truncate file down 24 rows. there truncate function can use easily? if not how can go doing so? below have far...

using system; using system.collections.generic; using system.componentmodel; using system.data; using system.drawing; using system.io; using system.linq; using system.text; using system.windows.forms;  namespace sts_converter {     public partial class form1 : form     {         public form1()         {             initializecomponent();         }          private void select_click(object sender, eventargs e)         {             int size = -1;             dialogresult result = openfiledialog1.showdialog(); // show dialog.             if (result == dialogresult.ok) // test result.             {                 string file = openfiledialog1.filename;                 try                 {                     string text = file.readalltext(file);                     size = text.length;                 }                 catch (ioexception)                 {                 }             }             console.writeline(size); // <-- shows file size in debugging mode.             console.writeline(result); // <-- debugging use only.         }      } }

it easy as:

string file = openfiledialog1.filename; file.writealllines(     file,      file.readlines(file).take(28).toarray() );

Comments

Post a Comment

Popular posts from this blog

asp.net - repeatedly call AddImageUrl(url) to assemble pdf document -

i'm using abcpdf , i'm curious if can recursively call addimageurl() function assemble pdf document compile multiple urls? something like: int pagecount = 0; int theid = thedoc.addimageurl("http://stackoverflow.com/search?q=abcpdf+footer+page+x+out+of+", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetochain(theid); } pagecount = thedoc.pagecount; console.writeline("1 document page count:" + pagecount); //flatten document (int = 1; <= pagecount; i++) { thedoc.pagenumber = i; thedoc.flatten(); } //now try again theid = thedoc.addimageurl("http://stackoverflow.com/questions/1980890/pdf-report-generation", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetoc
Read more

java - Android recognize cell phone with keyboard or not? -

in android app, want detect user's device if device has keyboard(like motorola milestone) , show corresponding user interface. guys know how that? ! regards justicepenny http://developer.android.com/reference/android/content/res/configuration.html public int keyboard the kind of keyboard attached device. 1 of: keyboard_nokeys, keyboard_qwerty, keyboard_12key. that's it!
Read more

iphone - How would you achieve a LED Scrolling effect? -

how achieve led scrolling effect example below? led sign - led ticker emulator iphone , ipad http://img.skitch.com/20101201-rsfh4p1bajb1wp94k466pdpiuj.preview.jpg sometimes remunerates comment in other posts :) have put code you, should implement font '8pin matrix' realistic feeling. uilabel *label; - (void)viewdidload { [super viewdidload]; label = [[uilabel alloc]initwithframe:cgrectmake(10, 50, 300, 20)]; label.font = [uifont fontwithname:@"courier-bold" size:16.0]; label.backgroundcolor = [uicolor blackcolor]; label.textcolor = [uicolor greencolor]; label.linebreakmode = uilinebreakmodecharacterwrap; // otherwise "…" label.text = @"this led text scrolled "; // blanks space between [self.view addsubview:label]; [nstimer scheduledtimerwithtimeinterval:0.12f target:self selector:@selector(scrolllabel) use
Read more