如何在ASP.NET中即时生成图像

Question

As the title says, how can generate (and display) images on the fly for simple charting, resizing etc?

Thanks

Answer 1

For charting, you may want to look into the ASP.NET Chart Control.

http://weblogs.asp.net/scottgu/archive/2008/11/24/new-asp-net-charting-control-lt-asp-chart-runat-quot-server-quot-gt.aspx

Answer 2

Use System.Drawing namespace.

Add a reference to System.Drawing assembly. Create a new Bitmap class. Call CreateGraphics on it. Use the returned Graphics object to do your drawing. Set the Response.ContentType to the appropriate image MIME type. Finally save the Bitmap to the Response.Output stream.

Answer 3

检查有关System.Drawing和ASP.NET的警告。http: //msdn.microsoft.com/zh-cn/library/system.drawing.aspx如果现在正在使用，请使用WPF http：// www。 codeproject.com/KB/WPF/WPF-Image-to-WebPage.aspx