vb.net 从 url 设置图像框中的图像而无需下载
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set image in image box from a url with out downloading
提问by Ioan Loosley
I am writing a program in vb.net for listening to the radio.
我正在 vb.net 中编写一个程序来收听广播。
How do I make it so I can load a image of the internet with out permanently downloading it to the hard drive. Because if I do this
我如何制作它以便我可以加载互联网图像而无需将其永久下载到硬盘驱动器。因为如果我这样做
PictureBox1.BackgroundImage = "http://www.bbc.co.uk/radio1/chart/assets/a/aviciivsnickyromero/single/icouldbetheonenicktim/artwork/26948.jpg"
but it will say Error 2 Value of type 'String' cannot be converted to 'System.Drawing.Image'.
但它会说“字符串”类型的错误 2 值无法转换为“System.Drawing.Image”。
回答by Sam Axe
Download it to an in-memory stream.
将其下载到内存流。
Dim tClient as WebClient = new WebClient
Dim tImage as Bitmap = Bitmap.FromStream(New MemoryStream(tClient.DownloadData(url)))
PictureBox1.Image = tImage
