Why does calculate button not work?

[mroberts50]

I have to develop a programm for a race that is suppose to put the runners in first, second and third place. Everything works except my calculate button this is my code.Forgive me I am very new to this. Any advice

Private Sub btncalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btncalculate.Click

  'Calculate who came in first, second and third place
  Dim txtrunner1finish As Single
  Dim txtrunner2finish As Single
  Dim txtrunner3finish As Single 

  'Copy the times into the variables
  Try
    txtrunner1finish = CSng(txtrunner1finish.ToString)
    txtrunner2finish = CSng(txtrunner2finish.ToString)
    txtrunner3finish = CSng(txtrunner3finish.ToString) 
    Catch ex As Exception
    MessageBox.Show("Time scores must be numeric.", "Error")
    Return
  End Try

  'Calculate and display the winner
  If txtrunner1finish < txtrunner2finish < txtrunner3finish Then
    lblfirstresults.Text = txtrunner1finish
    lblsecondresults.Text = txtrunner2finish
    lblthirdresults.Text = txtrunner3finish
  End If 
End Sub

[Stewart Ross]

Your logic test at line 19 is incorrect and cannot do what you are expecting it to do. In particular, to test more than one variable you need to consider structuring your code like

IF (v1 < v2) AND (v2 < v3) THEN

However, a single IF will not handle the logic you require for this exercise.

You need to reconsider what your logic is. As this belongs to project work you are undertaking we cannot assist you further on this other than to point out the area in which your mistake arises.

-Stewart

PS in general programming languages behave very logically and in a highly-dependable way. When you say in your question that you think your code is correct, assuming that what you've written is correct can blind you to the very high probability that in fact it isn't!

[mroberts50]

Thank you Stewart I truly appreciate your help. I will make the changes to this code and see what happens. I have worked with Access programming for so many years it blinds me to this VB stuff.