Homework Help: visual basic

Posted by cl on Thursday, May 7, 2009 at 4:58pm.

Cant get my message dialog box to display anbody see waht wrong with it? The message box is located in my if then else statement

Dim total As Integer = 0
Dim gradeCounter As Integer = 0
Dim grade As Integer = 0
Dim average As Double = 0

' sum grades in ListBox
Do
' read grade from ListBox
grade = gradesListBoxItemsItem(gradeCounter)
total += grade ' add grade to total
gradeCounter += 1 ' increment counter

Loop Until gradeCounter = gradesListBoxItemsCount()

average = total / gradesListBoxItemsCount() ' calculate average
averageResultLabel.Text = String.Format("{0:F}", average)
addButtonEnabled = True ' enable Add Grade Button
gradeTextBoxFocus() ' reset focus to Enter grade: TextBox

If (gradeCounter = " ") Then
MessageBoxShow( _
"There are not any grades entered", _
"Average can not be divided by zero", MessageBoxButtonsOK, _
MessageBoxIconError)
Else

End If

visual basic - Quidditch, Thursday, May 7, 2009 at 5:50pm
gradeCounter is defined as Integer.
Try:
If(gradeCounter = 0)...
visual basic - RickP, Thursday, May 7, 2009 at 10:45pm
In VB, you should use OPTION EXPLICIT whenever possible in order to let the 'compiler' endorce strong typing.

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