如何旋转图像 [英] how to rotate an image

问题描述

如何在.net中旋转图像
请建议一些代码

在此先感谢

How to rotate an image in .net
Please suggest some code

thanks in advance

推荐答案

在aspx页面中编写.

Write in aspx page.

<asp:Button ID="Button1" runat="server"  Text="Button" onclick="Button1_Click2" />

在页面后面编写代码

Write in code behind page

// get the URL of image
string path = Server.MapPath(Image1.ImageUrl) ;
// creating image from the image url
System.Drawing.Image i = System.Drawing.Image.FromFile(path);
// rotate Image 90' Degree
i.RotateFlip( System.Drawing.RotateFlipType.Rotate90FlipXY);
// save it to its actual path
i.Save(path);
// release Image File
i.Dispose();
// Set Image Control Attribute property to new image(but its old path)
Image1.Attributes.Add("ImageUrl", path);

这篇关于如何旋转图像的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！