How to do AES key generation in C#?

System.Security.Cryptography.AesCryptoServiceProvider crypto = new System.Security.Cryptography.AesCryptoServiceProvider();
crypto.KeySize = 128;
crypto.BlockSize = 128;
crypto.GenerateKey();
byte[] keyGenerated = crypto.Key;
Key = Convert.ToBase64String(keyGenerated);

RijndaelManaged aes = new RijndaelManaged();
         aes.BlockSize = 128;
         aes.KeySize = 128;

         /// In Java, Same with below code
         /// Cipher _Cipher = Cipher.getInstance("AES");  // Java Code
         aes.Mode = CipherMode.ECB;

         byte[] keyArr = Convert.FromBase64String(keyStr);
         byte[] KeyArrBytes16Value = new byte[16];
         Array.Copy(keyArr, KeyArrBytes16Value, 16);

         aes.Key = KeyArrBytes16Value;

         ICryptoTransform encrypto = aes.CreateEncryptor();

         byte[] plainTextByte = ASCIIEncoding.UTF8.GetBytes(PlainText);
         byte[] CipherText = encrypto.TransformFinalBlock(plainTextByte, 0, plainTextByte.Length);
         return Convert.ToBase64String(CipherText);