asp.net parameter is not valid when using bitmap
<pre><code>private void LoadButtonImage()
{
    if(buttonPicture != null)
        buttonPicture.Dispose();

    string templateFileName = "PicTemplate/RoundedRectangle.png";
    buttonPicture = new Bitmap(templateFileName);
}
</code></pre>

<p>This is my coding ..... parameter is not valid in runtime ... what can i do? Please Give result for this error very urgent....... any one help me.......... very urgent</p>
