Microsoft Dynamics NAV (Archived)

Random generation of alphanumeric password

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Posted on by Community Member

Hello,

I have to generate the random alphanumeric password.

In NAV through code is it possible to generate randomly?

In C# i have and idea but in NAV i am not sure.

txt1:='ABCDEFGHIJKLMNOPQRSTUVWXYZ';

txt2:='abcdefghijklmnopqrstuvwxyz';

txt3:='123456789';

txt4:='!@#%&';

txtalpha:=txt1+txt2+txt3+txt4;

please suggest me that how to generate the random password by using these variables.

and below is the code according to which i have to develop in NAV.

using System; using System.Security.Cryptography; public static string GetRandomAlphanumericString(int length)

{ const string alphanumericCharacters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklmnopqrstuvwxyz" + "0123456789";

return GetRandomString(length, alphanumericCharacters); }

public static string GetRandomString(int length, IEnumerable<char> characterSet)

{ if (length < 0) throw new ArgumentException("length must not be negative", "length");

if (length > int.MaxValue / 8) // 250 million chars ought to be enough for anybody throw new ArgumentException("length is too big", "length");

if (characterSet == null) throw new ArgumentNullException("characterSet"); var characterArray = characterSet.Distinct().ToArray();

if (characterArray.Length == 0) throw new ArgumentException("characterSet must not be empty", "characterSet");

var bytes = new byte[length * 8];

new RNGCryptoServiceProvider().GetBytes(bytes);

var result = new char[length]; for (int i = 0; i < length; i++)

{ ulong value = BitConverter.ToUInt64(bytes, i * 8);

result[i] = characterArray[value % (uint)characterArray.Length]; }

return new string(result); }

PLEASE SUGGEST ME THE CODE.

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Verified answer

Rajasekhar@MS 5,569 on at

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Hi

Have you tried the below, if not try

forum.mibuso.com/.../how-to-generate-random-code-with-limited-range

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Verified answer

Binesh 7,885 on at

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Hello, Try this code

Name DataType Subtype Length
validChar Char
CodeString Code 20

// validChar is a char array with 200 dimension

// Reaming alphabets you have to initialize like that and then use.

// GetRandom is a custom function it returns a code

GetRandom() : Code[20]
validChar[1]:='0';
validChar[2]:='1';
validChar[3]:='3';
validChar[4]:='4';
validChar[5]:='5';
validChar[6]:='6';
validChar[7]:='7';
validChar[8]:='8';
validChar[9]:='9';

validChar[10]:='-';
validChar[11]:='!';
validChar[12]:='@';
validChar[13]:='#';
validChar[14]:='$';
validChar[16]:='%';
validChar[16]:='&';
validChar[17]:='*';
validChar[18]:='>';
validChar[19]:='<';
validChar[20]:='?';
CLEAR(CodeString);
RANDOMIZE();
WHILE STRLEN(CodeString) < 8 DO BEGIN
CodeString := CodeString + FORMAT(validChar[RANDOM(20)]);
END;
EXIT(CodeString);

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Verified answer

Tharanga Chandrasekara 23,118 on at

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I suggest you to write your own code using "RANDOMIZE" and "RANDOM" function available in NAV. Then you will be able to learn things. Just taking a code from someone else's work will never take you to the place you really want to go.

If you need any additional help just let us know.

Link : https://msdn.microsoft.com/en-us/library/dd354946.aspx

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