[Solved] Store captured image by webcam Error: The path is not of a legal form

this query is solve using below code by myself.

cmd.Parameters.Add("@U_IMAGE", SqlDbType.Binary).Value = bytes; 
string image = Server.MapPath(vimage.ImageUrl); //hidden control
var WebClient = new WebClient();
byte[] imgbytes = WebClient.DownloadData(image);
string MainDir = @"~/userimage/";
String SubDir = DateTime.Now.ToString("dd-MM-yyyy");
if (!Directory.Exists(Server.MapPath(MainDir + SubDir + "/")))
{
    Directory.CreateDirectory(Server.MapPath(MainDir + SubDir + "/"));
}
  
string imgname = ("Image.jpg");
File.WriteAllBytes(Path.Combine(Server.MapPath(MainDir + SubDir), imgname), imgbytes);