How to Convert a given ip Address into Hexadecimal

Question

Hello!
Can you tell me, how to convert an ip address which is given by user into Hexadecimal?
like ip address is: 192.168.8.100

the Hexadecimal is value is: C0.A8.08.64

I also convert the give ip into binary, the code for conversion of ip address into binary is given below:

 

string givenip = ip_textBox.Text;

string[] words = ip_textBox.Text.Split('.');

int[] ipbroken = new int[4];

int ipoctetnumb = 0;

//getting hostname

IPHostEntry hostEntry = Dns.GetHostEntry(givenip);

textBox3.Text = hostEntry.HostName;

//removing dot from IP

foreach (var item in words)

{

if (item != ".")

{

ipbroken[ipoctetnumb] = Convert.ToInt32(item);

ipoctetnumb++;

}

}

//class information

if (ipbroken[0] == 0 || ipbroken[0] <= 126)

{

textBox6.Text = "Class A address ( 1.0.0.0 - 126.255.255.255 )\r\n 0nnnnnnn.hhhhhhhh.hhhhhhhh.hhhhhhhh";

}

else if (ipbroken[0] == 128 || ipbroken[0] <= 190)

{

textBox6.Text = "Class B address ( 128.0.0.0 - 191.255.255.255 )\r\n 10nnnnnn.nnnnnnnn.hhhhhhhh.hhhhhhhh";

}

else if (ipbroken[0] == 192 || ipbroken[0] <= 222)

{

textBox6.Text = "Class C address ( 192.0.0.0 - 223.255.255.255 )\r\n 110nnnnn.nnnnnn.nnnnnn.hhhhhhhhh";

}

//converted into Hexadecimal value

//Conversion into binary

string[] binaryip = new string[4];

for (int j = 0; j < 4; j++)

{

int quot;

string rem = "";

while (ipbroken[j] >= 1)

{

quot = ipbroken[j] / 2;

rem += (ipbroken[j] % 2).ToString();

ipbroken[j] = quot;

}

string bin = "";

for (int i = rem.Length - 1; i >= 0; i--)

{

bin = bin + rem[i];

}

int binIp;

if (bin.Length < 8)

{

binIp = 8 - bin.Length;

for (int i = 0; i < binIp; i++)

{

bin = "0" + bin;

}

}

binaryip[j] = bin;

}

textBox5.Text = binaryip[0] + "." + binaryip[1] + "." + binaryip[2] + "." + binaryip[3];

}