Rotate Image on Button Click in ASP.Net

Hi nauna,

Check this example. Now please take its reference and correct your code.

HTML

<asp:Image ID="Image1" ImageUrl="~/Images/Test.jpg" runat="server" Height="100px"
    Width="100px" />
<br />
<br />
<asp:Button Text="Rotate" runat="server" OnClick="Rotate" />

C#

protected void Rotate(object sender, EventArgs e)
{
    String path = Server.MapPath(Image1.ImageUrl);
    System.Drawing.Image img = System.Drawing.Image.FromFile(path);
    img.RotateFlip(RotateFlipType.Rotate90FlipNone);
    img.Save(path);
    Response.Redirect(Request.Url.AbsoluteUri);
}

VB.Net

Protected Sub Rotate(ByVal sender As Object, ByVal e As EventArgs)
    Dim path As String = Server.MapPath(Image1.ImageUrl)
    Dim img As System.Drawing.Image = System.Drawing.Image.FromFile(path)
    img.RotateFlip(RotateFlipType.Rotate90FlipNone)
    img.Save(path)
    Response.Redirect(Request.Url.AbsoluteUri)
End Sub

Screenshot