C# convert from uint[] to byte[]

c# byte bytearray uint32
ahmd0 picture ahmd0 · Nov 7, 2011 · Viewed 9.2k times · Source

This might be a simple one, but I can't seem to find an easy way to do it. I need to save an array of 84 uint's into an SQL database's BINARY field. So I'm using the following lines in my C# ASP.NET project:

//This is what I have
uint[] uintArray;

//I need to convert from uint[] to byte[]
byte[] byteArray = ???

cmd.Parameters.Add("@myBindaryData", SqlDbType.Binary).Value = byteArray;

So how do you convert from uint[] to byte[]?

Answer

Matt picture Matt · Nov 7, 2011

How about: 

byte[] byteArray = uintArray.SelectMany(BitConverter.GetBytes).ToArray();

This'll do what you want, in little-endian format...

Related questions

C# how to get Byte[] from IntPtr

I have a .dll(not my own) that has a delegate. This delegate Callback function is: "CallBackFN(ushort opCOde, IntPtr payload, uint size, uint localIP)" How can i convert IntPtr to Byte[]? I think that payload is actually Byte[]. If …

Read More
Convert 2 bytes to a number

I have a control that has a byte array in it. Every now and then there are two bytes that tell me some info about number of future items in the array. So as an example I could have: ... ... Item [4] = 7 …

Read More
Converting string to byte array in C#

I'm converting something from VB into C#. Having a problem with the syntax of this statement: if ((searchResult.Properties["user"].Count > 0)) { profile.User = System.Text.Encoding.UTF8.GetString(searchResult.Properties["user"][0]); } I then see the following errors: Argument 1: cannot …

Read More