How to change foreach loop to for loop in C#

Question

1.00/5 (3 votes)

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how can i change this code in for loop

What I have tried:

private string ByteArrayToHexString(byte[] data)
        {
            StringBuilder sb = new StringBuilder(data.Length * 3);
            foreach (byte b in data)
                sb.Append(Convert.ToString(b, 16).PadLeft(2, '0'));
            return sb.ToString().ToUpper();

        }

Posted 4-Mar-17 3:33am

Yugal Kishor

Updated 4-Mar-17 3:53am

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Comments

Graeme_Grant 4-Mar-17 9:36am

I don't understand the question - there is already a for loop...

Yugal Kishor 4-Mar-17 9:45am

i want to change this code. like

for (int i=0; i < 20; i++)
{
}

Yugal Kishor 4-Mar-17 9:46am

i want to change this code. like

for (int i=0; i < 20; i++)
{
}
like this

PIEBALDconsult 4-Mar-17 9:37am

With an editor I should think.

[no name] 4-Mar-17 9:44am

How did you change it to begin with? We will need more to work with, please explain in detail what you want to achieve.

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jekin77 · Accepted Answer · 2017-03-04T03:53:00

C#

private string ByteArrayToHexString(byte[] data)
     {
         StringBuilder sb = new StringBuilder(data.Length * 3);
         for (int i = 0; i < data.Length; i++)
         {
             sb.Append(Convert.ToString(data[i], 16).PadLeft(2, '0'));
         }
         return sb.ToString().ToUpper();
     }

OriginalGriff · Accepted Answer · 2017-03-04T03:53:00

private string ByteArrayToHexString(byte[] data)
        {
            StringBuilder sb = new StringBuilder(data.Length * 3);
            for(int i = 0; i < data.Length; i++)
                {
                sb.Append(Convert.ToString(data[i], 16).PadLeft(2, '0'));
                }
            return sb.ToString().ToUpper();
        }

Or just:

string hex = BitConverter.ToString(data);

How to change foreach loop to for loop in C#

2 solutions

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