NEED EXPLANATION WHY CODE GIVES ERRORS
I AM KEYING IN THE CODE FOR BEGINNING VISUAL BASIC DIRECTLY FROM THE AUTHORS EXAMPLE. I HAVE DONE IT SEVERAL TIMES I KEEP GETTING THE SAME ERRORS. IS THE CODE WRONG FROM THE AUTHORS.? SEE THE CODE BELOW.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'DECLARE VARIABLE
Dim DBLAREA As Double
'CALCULATE THE AREA FOR A CIRCLE WITH A RADIUS OF 100
DBLAREA = CalculateAreaFromRadius(100)
'DISPLAY THE RESULTS
MessageBox.Show(DBLAREA.ToString, "AREA OF 100")
'CALCULATEAREAFROM RADIUS - FIND THE AREA OF A CIRCLE
'CALCULATEAREAFROM RADIUS - FIND THE AREA OF A CIRCLE
End Sub
Private Sub SayHello()
'display a message box
MessageBox.Show("I Have Changed it!", "three buttons")
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
'call your method
SayHello()
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
'call your method
SayHello()
End Sub
End Class
'CalculateAreaFromRadius -find the area of a circle
Private Function CalculateAreaFromRadius(ByVal radius As Double) As Double
'declare variables
Dim dblRadiusSquared As Double
Dim dblResult As Double
'square the radius
dblRadiusSquared = radius * radius
'multiply it by pi
dblResult = dblRadiusSquared * Math.PI
'return the result
Return dblResult
End Function
Error 1 Name 'CalculateAreaFromRadius' is not declared.
Error 2 Statement is not valid in a namespace.
I DON'T UNDERSTAND WHAT THE PROBLEM IS.
HELP
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pratikasthana
