private void InsertPictureDialogOnInsertClicked(object sender, InsertImageEventArgs e)
{
var image = new ImageInline();
image.UriSource = e.Url;
image.Extension = Path.GetExtension(e.Url.ToString());
image.Width = e.Width;
image.Height = e.Height;
// Insert the image at current caret position.
RadRichTextBox.InsertInline(image);
}
