Question

Is there some equivalent to the StringBuilder.Insert method for use with byte arrays? I was going to try and use a MemoryStream but an error was thrown telling me that the MemoryStream object is “not expandable”. I need to place bytes within specific spots of another (already existing byte array).

Here is the same idea using StringBuilder.

String firstString = "FirstData";
String someString = "string Data";
int Index = 0;

StringBuilder sb = new StringBuilder(firstString);

for(int i = 0; i < someString.Length; i++)
{
   sb.Insert(index, someString[i]);
   index += 2;

}

Thank you for any help,

Evan

Answer 1

Use a List; which will allow you to insert as needed. If you have an existing array you can call ToList().

List<byte> data1 = new List<byte>() {10, 11, 12};
List<byte> data2 = new List<byte>() {13, 14, 15};
int Index = 0;

for(int i = 0; i < data1.Count; i++)
{
   data2.Insert(index, data2[i]);
   index += 2;
}

Then to go back to an array simply call ToArray().