{"id":10128,"date":"2022-09-22T10:04:05","date_gmt":"2022-09-22T04:34:05","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-read-text-file-chunks-by-chunks-by-scrollbar-closed\/"},"modified":"2022-09-22T10:04:05","modified_gmt":"2022-09-22T04:34:05","slug":"solved-read-text-file-chunks-by-chunks-by-scrollbar-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-read-text-file-chunks-by-chunks-by-scrollbar-closed\/","title":{"rendered":"[Solved] read text file chunks by chunks by scrollbar [closed]"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-18124897\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"18124897\" data-parentid=\"18113513\" data-score=\"1\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>This is a working example of reading a text file per stream to accomplish what you are trying to do. I have tested it with a 100 MB text file, and it worked well, but you have to see if larger files work as well.<\/p>\n<p>This is the example. Just bring a RichTextBox to your form and a VScrollBar. Then use a file &#8216;test.txt&#8217; on your hard drive &#8216;C:&#8217;.<\/p>\n<pre><code>public partial class Form1 : Form\n{\n    const int PAGE_SIZE = 64;   \/\/ in characters\n    int position = 0;  \/\/ position in stream\n\n    public Form1()\n    {\n        InitializeComponent();\n    }\n\n    private void vScrollBar1_Scroll(object sender, ScrollEventArgs e)\n    {\n        position = e.NewValue * PAGE_SIZE;\n\n        ReadFile(position);    \n    }\n\n    private void ReadFile(int position)\n    {\n        using (StreamReader sr = new StreamReader(@\"C:\\test.txt\"))\n        {\n            char[] chars = new char[PAGE_SIZE];\n            sr.BaseStream.Seek(position, SeekOrigin.Begin);\n            sr.Read(chars, 0, PAGE_SIZE);\n\n            string text = new string(chars);\n            richTextBox1.Text = text;\n        }    \n    }\n\n    private void Form1_Load(object sender, EventArgs e)\n    {\n        ReadFile(position);\n    }\n}\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">5<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved read text file chunks by chunks by scrollbar [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] This is a working example of reading a text file per stream to accomplish what you are trying to do. I have tested it with a 100 MB text file, and it worked well, but you have to see if larger files work as well. This is the example. Just bring a RichTextBox to &#8230; <a title=\"[Solved] read text file chunks by chunks by scrollbar [closed]\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-read-text-file-chunks-by-chunks-by-scrollbar-closed\/\" aria-label=\"More on [Solved] read text file chunks by chunks by scrollbar [closed]\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[324,1062,1241,959],"class_list":["post-10128","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-chunks","tag-textbox","tag-winforms"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] read text file chunks by chunks by scrollbar [closed] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-read-text-file-chunks-by-chunks-by-scrollbar-closed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] read text file chunks by chunks by scrollbar [closed] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] This is a working example of reading a text file per stream to accomplish what you are trying to do. 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I have tested it with a 100 MB text file, and it worked well, but you have to see if larger files work as well. This is the example. Just bring a RichTextBox to ... 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