{"id":2725,"date":"2018-05-30T12:43:59","date_gmt":"2018-05-30T10:43:59","guid":{"rendered":"http:\/\/www.capri-soft.de\/blog\/?p=2725"},"modified":"2018-05-30T12:45:08","modified_gmt":"2018-05-30T10:45:08","slug":"net-winforms-c-eine-baum-komponente-mit-strings-befuellen-treeview","status":"publish","type":"post","link":"https:\/\/www.capri-soft.de\/blog\/?p=2725","title":{"rendered":".NET Winforms C# : Eine Baum-Komponente bef\u00fcllen (TreeView)"},"content":{"rendered":"<h1>Problem<\/h1>\n<p>Der TreeView-Baum soll anhand von Strings bef\u00fcllt werden<\/p>\n<h1>Ansatz<\/h1>\n<p>Verwendung eines Backslashes wie bei Dateipfaden zur Baumeinr\u00fcckung<\/p>\n<h1>L\u00f6sung<\/h1>\n<pre class=\"brush: csharp; title: ; notranslate\" title=\"\">\r\nprivate void populateTreeFromStringArray(string&#x5B;] lines)\r\n{\r\n\tSortedList sl = new SortedList();\r\n\tthis.treeView1.Nodes.Clear();\r\n\tthis.treeView1.BeginUpdate();\r\n\t\/\/ this.treeView1.ShowRootLines;\r\n\tTreeNodeCollection parentNodes = this.treeView1.Nodes;\r\n\tforeach (string line in lines)\r\n\t{\r\n\t\tstring&#x5B;] stringParts = line.Split('\\\\');\r\n\r\n\t\tTreeNode nd = null;\r\n\t\t\/\/ Der Parent Key wird leer inititalisiert\r\n\t\tstring strParentKey = string.Empty;\r\n\t\tforeach (string s in stringParts)\r\n\t\t{\r\n\r\n\t\t\tstring sTrimmed = s.Trim();\r\n\r\n\t\t\tif (sTrimmed == string.Empty)\r\n\t\t\t{\r\n\t\t\t\tcontinue;\r\n\t\t\t}\r\n\r\n\t\t\tif (strParentKey.Length &gt; 0)\r\n\t\t\t{\r\n\t\t\t\tstrParentKey = string.Concat(strParentKey, @&quot;\\&quot;, sTrimmed);\r\n\t\t\t}\r\n\t\t\telse\r\n\t\t\t{\r\n\t\t\t\tstrParentKey = string.Concat(strParentKey, sTrimmed);\r\n\t\t\t}\r\n\r\n\t\t\tif (sl.ContainsKey(strParentKey))\r\n\t\t\t{\r\n\t\t\t\t\/\/verwende diesen\r\n\t\t\t\tnd = sl&#x5B;strParentKey] as TreeNode;\r\n\t\t\t}\r\n\t\t\telse\r\n\t\t\t{\r\n\t\t\t\t\/\/create new\r\n\t\t\t\tnd = new TreeNode(sTrimmed);\r\n\t\t\t\t\/\/den FullPath adden\r\n\t\t\t\tsl.Add(strParentKey, nd);\r\n\t\t\t\tparentNodes.Add(nd);\r\n\t\t\t}\r\n\r\n\t\t\tparentNodes = nd.Nodes;\r\n\t\t}\r\n\t}\r\n\tthis.treeView1.EndUpdate();\r\n}\r\n\r\nprivate void button4_Click(object sender, EventArgs e)\r\n{\r\n\t string&#x5B;] lines=new string&#x5B;]\r\n\t {\r\n\t\t @&quot;E:\\&quot;,\r\n\t\t @&quot;E:\\Bier&quot;,\r\n\t\t @&quot;D:\\Eigene Dateien&quot;,\r\n\t\t @&quot;D:\\Programme\\Games&quot;,\r\n\t\t @&quot;D:\\Eigene Dateien\\Eigene Musik2&quot;,\r\n\t\t @&quot;D:\\&quot;,\r\n\t\t @&quot;D:\\Eigene Dateien\\Eigene Downloads\\Multi&quot;,\r\n\t\t @&quot;D:\\Eigene Dateien\\Eigene Downloads\\Multi\\CD 1&quot;,\r\n\t\t @&quot;D:\\Eigene Dateien\\Eigene Downloads\\Multi\\CD 2&quot;,\r\n\t\t @&quot;D:\\Eigene Dateien\\Eigene Downloads\\Multi\\CD 3&quot;,\r\n\t\t @&quot;D:\\Eigene Dateien\\Eigene Downloads\\Multi\\CD 3\\Teil 2&quot;,\r\n\t\t @&quot;D:\\Eigene Dateien\\Eigene Downloads\\Multi\\CD 4&quot;\r\n\t };\r\n\r\n\t populateTreeFromStringArray(lines);\r\n }\r\n<\/pre>\n<iframe src=\"http:\/\/www.facebook.com\/plugins\/like.php?href=https%3A%2F%2Fwww.capri-soft.de%2Fblog%2F%3Fp%3D2725&amp;layout=standard&amp;show_faces=true&amp;width=450&amp;action=like&amp;colorscheme=light\" scrolling=\"no\" frameborder=\"0\" allowTransparency=\"true\" style=\"border:none; overflow:hidden; width:450px;margin-top:5px;\"><\/iframe>","protected":false},"excerpt":{"rendered":"<p>Problem Der TreeView-Baum soll anhand von Strings bef\u00fcllt werden Ansatz Verwendung eines Backslashes wie bei Dateipfaden zur Baumeinr\u00fcckung L\u00f6sung private void populateTreeFromStringArray(string&#x5B;] lines) { SortedList sl = new SortedList(); this.treeView1.Nodes.Clear(); this.treeView1.BeginUpdate(); \/\/ this.treeView1.ShowRootLines; TreeNodeCollection parentNodes = this.treeView1.Nodes; foreach (string line in lines) { string&#x5B;] stringParts = line.Split(&#8218;\\\\&#8216;); TreeNode nd = null; \/\/ Der Parent Key &hellip; <a href=\"https:\/\/www.capri-soft.de\/blog\/?p=2725\" class=\"more-link\"><span class=\"screen-reader-text\">.NET Winforms C# : Eine Baum-Komponente bef\u00fcllen (TreeView)<\/span> weiterlesen <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[4,33],"tags":[],"class_list":["post-2725","post","type-post","status-publish","format-standard","hentry","category-net","category-c"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4yGeN-HX","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2725","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2725"}],"version-history":[{"count":2,"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2725\/revisions"}],"predecessor-version":[{"id":2727,"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2725\/revisions\/2727"}],"wp:attachment":[{"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2725"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2725"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.capri-soft.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}