Bytes to Int conversion c# : I need to convert the byte data to integer,

 [enter image description here][1]


  [1]: https://i.stack.imgur.com/7sJe8.png

I tried to convert using *BitConverter.ToInt32(mode, 0)* but got an exception,

**Destination array is not long enough to copy all the items in the collection. Check array index and length.**