{"id":12558,"date":"2022-10-01T03:28:11","date_gmt":"2022-09-30T21:58:11","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-to-clear-loaded-images-in-a-picturebox-c\/"},"modified":"2022-10-01T03:28:11","modified_gmt":"2022-09-30T21:58:11","slug":"solved-to-clear-loaded-images-in-a-picturebox-c","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-to-clear-loaded-images-in-a-picturebox-c\/","title":{"rendered":"[Solved] To clear loaded images in a picturebox-c#"},"content":{"rendered":"

[ad_1]
\n<\/p>\n

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Your code has many<\/strong> issues.<\/p>\n

The one you are looking for is that you don’t clear the alist<\/code> before loading new file names.<\/p>\n

So insert:<\/p>\n

    alist.Clear();\n<\/code><\/pre>\n
before <\/p>\n
    \/\/Get Each files \n<\/code><\/pre>\n
And also <\/p>\n
   filelength = alist.Count;\n<\/code><\/pre>\n
after the loop. No need to count while adding!<\/p>\n
Also note that ArrayList<\/code> is pretty much depracated and you should use the type-safe and powerful  List<T><\/code> instead:<\/p>\n
List<string> alist = new List<string>();\n<\/code><\/pre>\n
Of course a class variable named i<\/code> is silly and you are also relying on always having a SelectedItem<\/code> in the comboBox2. <\/p>\n
And since you are not properly Disposing of the Image you are leaking GDI resources.<\/p>\n
You can use this function for properly loading images:<\/p>\n
void loadImage(PictureBox pbox, string file)\n{\n    if (pbox.Image != null)\n    {\n        var dummy = pbox.Image;\n        pbox.Image = null;\n        dummy.Dispose();\n    }\n    if (File.Exists(file)) pbox.Image = Image.FromFile(file);\n}\n<\/code><\/pre>\n
It first creates a reference to the Image<\/code>, then clears the PictureBox<\/code>‘s reference, then uses the reference to Dispose<\/code> of the Image<\/code> and finally tries to load the new one.<\/p>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            <\/span> <\/p><\/div>\n<\/div>\n
[ad_2]<\/p>\n
solved To clear loaded images in a picturebox-c# <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] Your code has many issues. The one you are looking for is that you don’t clear the alist before loading new file names. So insert: alist.Clear(); before \/\/Get Each files And also filelength = alist.Count; after the loop. No need to count while adding! Also note that ArrayList is pretty much depracated and you … 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":[324,3409,959],"class_list":["post-12558","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-picturebox","tag-winforms"],"yoast_head":"\n[Solved] To clear loaded images in a picturebox-c# - 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-to-clear-loaded-images-in-a-picturebox-c\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] To clear loaded images in a picturebox-c# - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Your code has many issues. The one you are looking for is that you don’t clear the alist before loading new file names. So insert: alist.Clear(); before \/\/Get Each files And also filelength = alist.Count; after the loop. No need to count while adding! Also note that ArrayList is pretty much depracated and you ... 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The one you are looking for is that you don’t clear the alist before loading new file names. So insert: alist.Clear(); before \/\/Get Each files And also filelength = alist.Count; after the loop. No need to count while adding! Also note that ArrayList is pretty much depracated and you ... 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