help with counter

[tragic54]

Alright so i'm writing a program, and i need to count the number of times a word begins with a letter.

Public Class frmPigLatin

    Private Sub btnTranslate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnTranslate.Click
        Dim strChar1 As String
        Dim strInput As String
        Dim strOutput As String = ""
        Dim strWords As String()  'Makes an empty array
        Dim i As Integer
        Dim strConversion As String
        strInput = txtEnterWords.Text

        'Split the text into an array of words
        strWords = Split(strInput, " ")

        For i = LBound(strWords) To UBound(strWords)
            strChar1 = strWords(i).Substring(0, 1)

            Select Case strChar1.ToUpper
                Case "A", "E", "I", "O", "U"
                    strWords(i) = (strWords(i) & "WAY")
                Case Else
                    strWords(i) = (strWords(i).Substring(1) & strChar1 & "AY")
            End Select

            'Loop through each word...  
        Next i

        'Put the words back together. 
        strConversion = String.Join(" ", strWords)
        MessageBox.Show(strConversion _
        & vbCrLf & "There are " & nbrWords() & " words in the box.", "Pig Latin")

    End Sub

    Private Function nbrWords()

        Dim strLength As String
        Dim strWhole As String
        Dim strCounter As String
        Dim x As Integer

        'Trim spaces on front and end.
        strWhole = Trim(Me.txtEnterWords.Text)
        If strWhole = "" Then
            MsgBox("Please enter words")
        End If
        'Put the length of strWhole in the strLength variable
        strLength = Len(strWhole)
        strCounter = 1

        Dim currentLetter As String
        Dim prevLetter As String

        For x = 2 To strLength
            currentLetter = Mid(strWhole, x, 1)
            prevLetter = Mid(strWhole, x - 1, 1)
            If currentLetter = Chr(32) And prevLetter <> Chr(32) Then
                strCounter = strCounter + 1
            End If

        Next

        Return strCounter

    End Function

Alright so now the message box displays the correct conversion to pig latin, and will count the number of words in the string, but i need to be pointed in the right direction as to how i could.

1. Count the number of words that begin with a vowel coming from the text box. I was looking around and learned how to count all the vowels in the string, but i dont know what i need to do to search the first char then skip the string and goto the next. Can anyone point me in the right direction?

[tragic54]

Is it possible to insert a counter in this line of code to count if the string begins with vowel while its being split up?

        'Split the text into an array of words
        strWords = Split(strInput, " ")
 
        For i = LBound(strWords) To UBound(strWords)
            strChar1 = strWords(i).Substring(0, 1)
 
            Select Case strChar1.ToUpper
                Case "A", "E", "I", "O", "U"
                    strWords(i) = (strWords(i) & "WAY")
                Case Else
                    strWords(i) = (strWords(i).Substring(1) & strChar1 & "AY")
            End Select
 
            'Loop through each word...  
        Next i

[Killer42]

Wouldn't you just increment a numeric variable after, say, line 9?

[tragic54]

sigh, thank you killer.. appreciate it.

[Killer42]

sigh, thank you killer.. appreciate it.

The simple ones are surprisingly easy to miss, huh.

[tragic54]

One more question if someone doesnt mind.

I'm trying to throw an exception if nothing is entered in the text box. The message is displayed once the translate button is clicked, but i need it to stop immediately before any output is given through the message box. And for some reason, focus won't work on my text box :/

        Try
            For i = LBound(strWords) To UBound(strWords)

                strChar1 = strWords(i).Substring(0, 1)

                Select Case strChar1.ToUpper
                    Case "A", "E", "I", "O", "U"
                        strWords(i) = (strWords(i) & "WAY")
                        intCountVowel = intCountVowel + 1

                    Case Else
                        strWords(i) = (strWords(i).Substring(1) & strChar1 & "AY")
                End Select

                'Loop through each word...  
            Next i
        Catch Sentance As SystemException
            MessageBox.Show("Please Enter a valid sentence.")
            Me.txtEnterWords.Focus()
        End Try

[QVeen72]

Hi,

On 11th line write this :

If Trim(txtEnterWo rds.Text) ="" Then Exit Sub

Regards
Veena

[tragic54]

didnt work, it gives me the enter a sentence, but when i click ok. It goes down to the message statements and executes that :/

[QVeen72]

Hi,

In your Original function write this after 43rd line:

[code=vb]
If Trim(txtEnterWo rds.Text) ="" Then
strCounter = 0
Return strCounter
Exit Function
End If
[/code]

Regards
Veena

[tragic54]

That didn't work either, went through the division to get the percentage of vowels and threw a dividebyzero/overflow exception. So i piddled with it and just wrapped the full code as a system exception and it catches everything. Maybe it woulda helped if i would've given you the full code lol. Sorry bout that, but i appreciate you trying. Thanks!