Call to Rnd() generating the same number

Question

When I set up this bit of code, every time I debug the software it generates the same number. Can anyone tell me why this is happening?

dim value as integer
         


        

Answer 1

Since this was tagged as .Net you should not be using VB6 legacy functions. For .Net use the Random Class Here is an example that requires a button and a label.

Public Class Form1

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Label1.Text = GenRandInt(100).ToString
    End Sub

    Private Shared prng As New Random 'only need one - should not be in a method

    Private Function GenRandInt(maxValue As Integer) As Integer
        'returns an integer between 0 and maxValue inclusive
        Return prng.Next(maxValue + 1)
    End Function
End Class

Read the documentation for the details and other uses of the Random class.

edit: If for some reason you decide to continue to use Rnd, then call Randomize before using it.