C# devexpress galleryControl 在加载图片后删除图片被占用问题-优快云博客

本文链接：https://blog.youkuaiyun.com/luwei_cool/article/details/108582090

本文通过一个具体的.NET图片加载示例，展示了如何避免使用Image.FromFile导致的内存泄漏问题，提出了使用FileStream结合Image.FromStream的解决方案，确保在加载图片后正确关闭并释放资源。

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以官方例子为例

GalleryControl gc = new GalleryControl();
gc.Dock = DockStyle.Fill;
this.Controls.Add(gc);

Image im1 = Image.FromFile("c:\\Images\\BMW.jpg");
Image im2 = Image.FromFile("c:\\Images\\Ford.jpg");
Image im3 = Image.FromFile("c:\\Images\\MercedecBenz.jpg");
Image im4 = Image.FromFile("c:\\Images\\AnneDodsworth.jpg");
Image im5 = Image.FromFile("c:\\Images\\HannaMoos.jpg");
Image im6 = Image.FromFile("c:\\Images\\JanetLeverling.jpg");

gc.Gallery.ItemImageLayout = ImageLayoutMode.ZoomInside;
gc.Gallery.ImageSize = new Size(120, 90);
gc.Gallery.ShowItemText = true;

GalleryItemGroup group1 = new GalleryItemGroup();
group1.Caption = "Cars";
gc.Gallery.Groups.Add(group1);

GalleryItemGroup group2 = new GalleryItemGroup();
group2.Caption = "People";
gc.Gallery.Groups.Add(group2);

group1.Items.Add(new GalleryItem(im1, "BMW", ""));
group1.Items.Add(new GalleryItem(im2, "Ford", ""));
group1.Items.Add(new GalleryItem(im3, "Mercedec-Benz", ""));

group2.Items.Add(new GalleryItem(im4, "Anne Dodsworth", ""));
group2.Items.Add(new GalleryItem(im5, "Hanna Moos", ""));
group2.Items.Add(new GalleryItem(im6, "Janet Leverling", ""));

问题出在红色代码处，Image 占用了图片，建议修改为

FileStream fs1 = new System.IO.FileStream(path, FileMode.Open, FileAccess.Read);
Image image = System.Drawing.Image.FromStream(fs1);
fs1.Close();
fs1.Dispose();

删除组或者图片后不再占用