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  1. #1
    Join Date
    Feb 2006
    Posts
    43

    Question If...Then...Else Statement

    I want to know if I am doing this correctly. Here is my assignment. Complete the If...Then...Else button's Click event procedure by writing an If..Then...Else statement that displays the name of the month corresponding to the number entered by the user
    Example, if the user enters 1, the month is January
    If the user enters an invalid number display an error message
    Here is my pseudocode in If/Else and Case format:
    What I am not understanding is the teacher told us to use a nested if, which is just stupid when we could use a If/ElseIf/Else?
    A little help please? Thank you so much!
    How can I write this pseudocode using a nested if? I don't see it as being possible.

    Pseudocode for If/EsleIf/Else

    1. Declare variables
    2. Assign variables to the string input box
    3. If the month code is 1, display January
    Else If the month code is 2, display February
    Else If the month code is 3, display March
    Else If the month code is 4, display April
    Else If the month code is 5, display May
    Else If the month code is 6, display June
    Else If the month code is 7, display July
    Else If the month code is 8, display August
    Else If the month code is 9, display September
    Else If the month code is 10, display October
    Else If the month code is 11, display November
    Else If the month code is 12, display December
    Else
    Display “Error”
    End If
    End If
    End If
    End If
    End If
    End If
    End If
    End If
    End If
    End If
    End If
    End If

    Pseudocode for Case Selection Structure
    1. declare variable
    2. get month
    3. month value:
    1 display ”January”
    2 display February
    3 display “March”
    4 display “April”
    5 display “May”
    6 display “June”
    7 display “July”
    8 display “August”
    9 display “September”
    10 display “October”
    11 display “November”
    12 display “December”
    Other display “Error”

  2. #2
    Join Date
    Jan 2006
    Location
    Fox Lake, IL
    Posts
    15,007

    Re: If...Then...Else Statement

    Take a look at this page. It has samples of each, so you can see that the SELECT CASE statement is recommended rather than IF statements.

    http://www.startvbdotnet.com/language/ifthen.aspx

    I'm pretty sure that you could just use FORMAT the MONTH when the user enters a number, also.

    http://msdn.microsoft.com/library/de...matstrings.asp
    David

    CodeGuru Article: Bound Controls are Evil-VB6
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    CodeGuru Reviewer
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  3. #3
    Join Date
    Feb 2006
    Posts
    43

    Re: If...Then...Else Statement

    Yes, that is perfect! I just don't understand why she wants us to do both. Thanks for the link! Perfect!

  4. #4
    Join Date
    Jan 2006
    Location
    Fox Lake, IL
    Posts
    15,007

    Re: If...Then...Else Statement

    Maybe she doesn't know VB or Net?
    David

    CodeGuru Article: Bound Controls are Evil-VB6
    2013 Samples: MS CODE Samples

    CodeGuru Reviewer
    2006 Dell CSP
    2006, 2007 & 2008 MVP Visual Basic
    If your question has been answered satisfactorily, and it has been helpful, then, please, Rate this Post!

  5. #5
    Join Date
    Feb 2006
    Posts
    43

    Re: If...Then...Else Statement

    That is funny! Considering she is the teacher! LOL She is also my teacher for Web Programming. I don't know what other classes she teaches. You could look her up on ratemyprofessor.com her name is Dawn Craig at Rock Valley College in Illinois. LOL

    Got it! Now time to program it!

    Using a Nested if...

    1. Declare variables
    2. Assign variables to the string input box
    3. If the month code is 1, Then
    display ”January”
    Else If the month code is 2, Then
    display February
    Else If the month code is 3, Then
    display “March”
    Else If the month code is 4, Then
    display “April”
    Else If the month code is 5, Then
    display “May”
    Else If the month code is 6, Then
    display “June”
    Else If the month code is 7, Then
    display “July”
    Else If the month code is 8, Then
    display “August”
    Else If the month code is 9, Then
    display “September”
    Else If the month code is 10, Then
    display “October”
    Else If the month code is 11, Then
    display “November”
    Else If the month code is 12, Then
    display “December”
    Else
    display “Error”
    End If

  6. #6
    Join Date
    Feb 2006
    Posts
    43

    Re: If...Then...Else Statement

    A little help can take you a long way! What's that saying give a man a fish and he will keep asking you for more... Teach a man to fish and he will eat for life? Not with the mercury in our river! LOL

    Private Sub uiIfButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles uiIfButton.Click
    Dim month As Integer
    month = Integer.Parse(Me.uiMonthCodeTextBox.Text)
    If month = 1 Then
    Me.uiMsgLabel.Text = "January"
    ElseIf month = 2 Then
    Me.uiMsgLabel.Text = "February"
    ElseIf month = 3 Then
    Me.uiMsgLabel.Text = "March"
    ElseIf month = 4 Then
    Me.uiMsgLabel.Text = "April"
    ElseIf month = 5 Then
    Me.uiMsgLabel.Text = "May"
    ElseIf month = 6 Then
    Me.uiMsgLabel.Text = "June"
    ElseIf month = 7 Then
    Me.uiMsgLabel.Text = "July"
    ElseIf month = 8 Then
    Me.uiMsgLabel.Text = "August"
    ElseIf month = 9 Then
    Me.uiMsgLabel.Text = "September"
    ElseIf month = 10 Then
    Me.uiMsgLabel.Text = "October"
    ElseIf month = 11 Then
    Me.uiMsgLabel.Text = "November"
    ElseIf month = 12 Then
    Me.uiMsgLabel.Text = "December"
    Else
    MessageBox.Show("Please enter a number from 1 - 12", _
    "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)

    End If

    End Sub

  7. #7
    Join Date
    Feb 2006
    Posts
    43

    Talking Re: If...Then...Else Statement

    Using the Case Selection structure

    Private Sub uiIfButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles uiIfButton.Click
    Dim month As Integer
    month = Integer.Parse(Me.uiMonthCodeTextBox.Text)
    Select Case month
    Case 1
    Me.uiMsgLabel.Text = "January"
    Case 2
    Me.uiMsgLabel.Text = "February"
    Case 3
    Me.uiMsgLabel.Text = "March"
    Case 4
    Me.uiMsgLabel.Text = "April"
    Case 5
    Me.uiMsgLabel.Text = "May"
    Case 6
    Me.uiMsgLabel.Text = "June"
    Case 7
    Me.uiMsgLabel.Text = "July"
    Case 8
    Me.uiMsgLabel.Text = "August"
    Case 9
    Me.uiMsgLabel.Text = "September"
    Case 10
    Me.uiMsgLabel.Text = "October"
    Case 11
    Me.uiMsgLabel.Text = "November"
    Case 12
    Me.uiMsgLabel.Text = "December"
    Case Else
    MessageBox.Show("Please enter a number from 1 - 12", _
    "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)

    End Select

    End Sub

    Thanks again Genius! Your the BOMB! LOL

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