从Winforms图片框中的url加载的图像是否存储在缓存中? [英] Is the image loaded from url in winforms picturebox stored in cache?

问题描述

在winform应用程序的表单中，我必须显示存储在Web服务器上的图像(多幅图像).显示图像没有问题，因为我可以简单地将URL分配给图片框.

In a form in winform application i have to show images (multiple images) stored on webserver. There is no problem in showing images as i can simple assign URL to picturebox.

picturebox1.ImageLocation = "http://example.com/Image.jpg";

该表单将被频繁打开多次，现在每次打开表单时，每次都会下载图像.不必要增加流量.

That form will be opened many times frequently, right now each time form is opened, images are being downloaded every time. It is unnecessary increasing traffic.

是否可以告诉picturebox缓存图像(就像Browser一样)，因此下次请求相同的图像时，应该快速加载. 有可能吗?

Is it possible to tell picturebox to cache image (as Browser do), so next time same images is requested, it should load quickly. Is that possible?

推荐答案

使用
预加载图像 Image img = Image.FromFile("...");

Pre-load the image(s) with
Image img = Image.FromFile("...");

然后您可以将图像提供给PictureBox:
pictureBox1.Image = img;

Then you can give the image to the PictureBox:
pictureBox1.Image = img;

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