The image
can be rotated in a desired degree using the Namespace System.Drawing in C#. The
method that will be used is RotateFlip which has various rotatefliptypes from
90, 180, 270, none. In the below example, I have used the 90 degree rotation. The
rotated image will be stored in the same path with the same name using the Save
method.
In aspx page,
<asp:ImageButton ID="ImageButton"
runat="server"
ImageUrl="~/images/boat_nature.jpg"
Width="300px"
Height="300px"
/><br /><br />
<asp:Button ID="RotateButton"
runat="server"
Text="Rotate"
onclick="Button1_Click"
/>
In aspx.cs
page
protected void Button1_Click(object
sender, EventArgs e)
{
// get the
full path of image url
string
path = Server.MapPath(ImageButton.ImageUrl);
// create
image from the image url
System.Drawing.Image
img = System.Drawing.Image.FromFile(path);
// rotate
Image 90' Degree
img.RotateFlip(RotateFlipType.Rotate90FlipXY);
// save it to
its actual path
img.Save(path);
// release
Image File
img.Dispose();
// Set Image
Control Attribute property to new image(but its old path)
ImageButton.Attributes.Add("ImageUrl", path);
}
