How to convert image to binary and get result in text box

Question

I need to convert image to binary and get result in text box .

 

i using the following function :

 

Image found in path D:/person.jpg 

public static byte[] ImageToBinary(string _path)
{
FileStream fS = new FileStream(_path, FileMode.Open, FileAccess.Read);
byte[] b = new byte[fS.Length];
fS.Read(b, 0, (int)fS.Length);
fS.Close();
return b;
}

How to receive the value returned from function ImageToBinary in textbox1 ?

 

I work in c# windows form c#