[Timmeh]

				ArrayList lstNumbers = new ArrayList();
				Random rndNumber = new Random();
				int number = rndNumber.Next(1, max + 1);
				lstNumbers.Add(number);
				int count = 0;

				do
				{
					number = rndNumber.Next(1, max + 1);
					if (!lstNumbers.Contains(number))
					{
						lstNumbers.Add(number);
					}
					count++;
				}
				while (count <= 10 * max);
				{
				}
				return lstNumbers;

I am trying to read through the ArrayList i just made but everytime i read through it with :

public void knop3_Click(object sender, EventArgs e)
		{

			int volgnummer = 0;
			lstNumbers = nbs.RandomNumbers(total);
			if (volgnummer < lstNumbers.Count)
			{
				listBox3.Items.Add(lstNumbers[volgnummer]);
				volgnummer++;
			}
		}

it wont properly follow the ArrayList Properly but if i would use the following :

		  
 lstNumbers = nbs.RandomNumbers(total);
			for (int p = 0; p < lstNumbers.Count; p++)
				listBox1.Items.Add(lstNumbers[p]);

If i use the for function it will generate the 10 randomnumbers without duplicates.
But if i would use the button Click it will put the ArrayList Numbers in a different position and it will make duplicate numbers in the listbox3 maybe i am doing something silly i am still a beginner

Any help is appriciated

- Tim

[JackOfAllTrades]

Wrong forum. Moving to C#.

[Timmeh]

bump

Sorry for posting in wronge forum before but i pressed the C# Help link so must have send me to the wronge place problem still has not been solved any feedback would be nice

[Momerath]

What's nbs.RandomNumbers(total);

You also have a mix of variables that are undefined in the code you provide, which makes it hard to tell what they are, or where they come from.

[djkitt]

So,

You could try changing:

			if (volgnummer < lstNumbers.Count)
			{

to:

			while (volgnummer < lstNumbers.Count)
			{

//emphasis on the while

Hope this helps,

Kitt