Initialize a byte array to a certain value, other than the default null?
This question already has an answer here:
For small arrays use array initialisation syntax:
var sevenItems = new byte[] { 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
For larger arrays use a standard for loop. This is the most readable and efficient way to do it:
var sevenThousandItems = new byte[7000];
for (int i = 0; i < sevenThousandItems.Length; i++)
{
sevenThousandItems[i] = 0x20;
}
Of course, if you need to do this a lot then you could create a helper method to help keep your code concise:
byte[] sevenItems = CreateSpecialByteArray(7);
byte[] sevenThousandItems = CreateSpecialByteArray(7000);
// ...
public static byte[] CreateSpecialByteArray(int length)
{
var arr = new byte[length];
for (int i = 0; i < arr.Length; i++)
{
arr[i] = 0x20;
}
return arr;
}
Use this to create the array in the first place:
byte[] array = Enumerable.Repeat((byte)0x20, <number of elements>).ToArray();
Replace <number of elements> with the desired array size.
You can use Enumerable.Repeat()
Array of 100 items initialized to 0x20:
byte[] arr1 = Enumerable.Repeat(0x20,100).ToArray();
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