I saw a HexDump extension somewhere (probably in the forums). Since I cannot remember the place, here is his suggestion (just copy it to "MyExtensions"):

[code]
void Main()
{
// Write code to test your extensions here. Press F5 to compile and run.
byte[] text = Encoding.UTF8.GetBytes("The quick brown fox jumps over the lazy dog");
var textList = new List<byte>(text);

//HexDump(text);
text.HexDump();
textList.HexDump();
}

public static class MyExtensions
{
// Write custom extension methods here. They will be available to all queries.
public static object HexDump(this byte[] data)
{
return data
.Select((b, i) => new { Byte = b, Index = i })
.GroupBy(o => o.Index / 16)
.Select(g =>
g
.Aggregate(
new { Hex = new StringBuilder(), Chars = new StringBuilder() },
(a, o) => {a.Hex.AppendFormat("{0:X2} ", o.Byte); a.Chars.Append(Convert.ToChar(o.Byte)); return a;},
a => new { Hex = a.Hex.ToString(), Chars = a.Chars.ToString() }
)
)
.ToList()
.Dump();
}

public static object HexDump(this List<byte> data)
{
return data.ToArray().HexDump();
}
}
[/code]

You can write your own Extension @ MyExtensions.

Mabye you need something like this:

[code]
public static string ToHexString(this IEnumerable<int> numbers)
{
return numbers.Select(x=>string.Format("0x{0:X2}", x)).Aggregate((c,y)=>c + " " + y);
}
[/code]