random string gen prob

[Techno]

hi

i cant seem to get this work!

it only uses the letters up to the specified number, but i want it to use the letters that has been specified maximum, ie if the letter was z it should use all letters up to and including z

whats the problem?

			int maximumLength = 9;
			string minLetter = "a";
			string maxLetter = "z";
			string alphabet = "abcdefghijklmnopqrstuvwxyz";
			string theMainString = null;
			int minNum = 0;
			string finalResult = null;

			//MessageBox.Show(DoRandThing(9,10,'a','h'));

			//return;



			for (int i = 0; i < alphabet.Length; i++)
			{
				if (alphabet[i].ToString().Equals(minLetter))
				{
					for (int counter = i; counter < alphabet.Length; counter++)
					{
						if (!alphabet[counter].ToString().Equals(maxLetter))
						{
							theMainString = theMainString + alphabet[counter].ToString();
						}
						//if we found the last letter, break out the loop!
						if(alphabet[counter].ToString().Equals(maxLetter))
						{
							theMainString = theMainString + alphabet[counter].ToString();

							break;
						}
					}
				}
			}

			int randomNumber = ran.Next(minNum, maximumLength);
			if (randomNumber == 0)
			{
				randomNumber = 1;
			}

			for (int counter = 0; counter < randomNumber; counter++)
			{
				finalResult = finalResult + theMainString[ran.Next(minNum, maximumLength)].ToString();
			}
			MessageBox.Show(finalResult.ToString());

[Serge]

I can offer you a routine that I wrote a while ago.

public static string getNewPassword()
{
	Random objRnd = new Random();
	StringBuilder sbPassword = new StringBuilder();
	string strAlpha = "abcdefghigklmnopqrstuvwxyz";
	string strAlphaCap = "ABCDEFGHIGKLMNOPQRSTUVWXYZ";
	string strNumeric = "1234567890";
	string strTemp = "";
	int intRndChar = 0;

	try
	{
		for (int i=1; i<9; i++)
		{	
			int intAlphaNumber = objRnd.Next(1, 4);
						
			if (intAlphaNumber == 1)
				strTemp = strAlpha;
			else if (intAlphaNumber == 2)
				strTemp = strAlphaCap;
			else
				strTemp = strNumeric;
		


			intRndChar = objRnd.Next (1, strTemp.Length);
			string strChar = strTemp.Substring(intRndChar, 1);
			sbPassword.Append (strChar);
		}

		return sbPassword.ToString();
	}
	catch (Exception ex)
	{
		Console.Write ( ex.Message + "    " + strTemp + "   length: " + strTemp.Length + "   rnd char: " + intRndChar);
		return "";
	}
}

[Techno]

thats great i really do appreciate it and will use it but im trying to figure out why my code doesnt work. i kinda have the full version ish working but doesnt give me a's!

[Techno]

ok i have my own version working - yippeee! BUT lol...

if we enter a max chars of 255, it only likes z's!

		
Random rand;
int maxLengthOfChars = 255;
int minLengthOfChars = 0;
string maxChar = "a";
string minChar = "z";
string alphabet = "abcdefghijklmnopqrstuvwxyz";
string tempString = "";
string finalString = "";
for (int counter = 0; counter < alphabet.Length; counter++)
{
	if(alphabet[counter].ToString().Equals(minChar))
	{
                        for (int counter2 = counter; counter2 < alphabet.Length; counter2++)
					
{
					
   tempString += alphabet[counter2].ToString();

if (alphabet[counter2].ToString().Equals(maxChar))
{
break;
}
}
}				
}
int randomStartPoint = 0;
randomStartPoint = rand.Next(minLengthOfChars, maxLengthOfChars + 1); 

if (randomStartPoint == 0)
{
  if (minLengthOfChars == 0)
  {
     randomStartPoint = 1;
  }
  else
  {
     randomStartPoint = minLengthOfChars;
  }
}

int internalRandom = 0;
for (int counter = 0; counter < randomStartPoint; counter++)
{
   internalRandom = rand.Next(0, tempString.Length);
						
   if(finalString.Length != maxLengthOfChars)
   {
      finalString += tempString[internalRandom].ToString();
   }
   if(finalString.Length < minLengthOfChars)
   {
      finalString += tempString[internalRandom].ToString();
   }
}

MessageBox.Show(finalString + " " + finalString.Length.ToString());

}

private void Form2_Load(object sender, System.EventArgs e)
{
rand = new Random();
}

[Techno]

nevermind, sorted!!