String Concatenation in VB

[kellysgirl]

Option Explicit On
Option Strict On
 
Imports System.Globalization
 
Public Class MainForm
 
    Private Sub exitButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles exitButton.Click
        Me.Close()
    End Sub
 
    Private Sub MainForm_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        ' fills the combo box with values, then selects the first value
 
        For years As Integer = 3 To 20
            lifeComboBox.Items.Add(years.ToString)
        Next years
        lifeComboBox.SelectedIndex = 0
    End Sub
 
    Private Sub displayButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles displayButton.Click
        ' displays a double-declining balance depreciation schedule
 
        Dim cost As Double
        Dim life As Double
        Dim period As Double
        Dim salvage As Double
        Dim depreciation As Double
        Dim isConvertedCost As Boolean
        Dim isConvertedLife As Boolean
        Dim isConvertedSalvage As Boolean
 
        isConvertedCost = Double.TryParse(costTextBox.Text, _
            NumberStyles.Currency, NumberFormatInfo.CurrentInfo, cost)
        isConvertedLife = Double.TryParse(lifeComboBox.Text, life)
        isConvertedSalvage = Double.TryParse(salvageTextBox.Text, _
            NumberStyles.Currency, NumberFormatInfo.CurrentInfo, salvage)
 
        If isConvertedCost AndAlso isConvertedLife AndAlso isConvertedSalvage Then
            scheduleTextBox.Text = "     Year     Depreciation"
 
            ' write a For .... Next loop here to calculate the double declining balance 
            ' depreciation and use a string concatenation to add the year and depreciation
            ' to the output text box.
 
 
 
 
        Else
            MessageBox.Show("The cost, life, and salvage values must be numeric.", _
                "Sonheim Manufacturing Company", MessageBoxButtons.OK, _
                MessageBoxIcon.Information)
        End If        costTextBox.Focus()
    End Sub
 
 
    Private Sub costTextBox_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles costTextBox.Enter
        costTextBox.SelectAll()
    End Sub
 
    Private Sub costTextBox_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles costTextBox.TextChanged
        scheduleTextBox.Clear()
    End Sub
 
    Private Sub lifeComboBox_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles lifeComboBox.TextChanged
        scheduleTextBox.Clear()
    End Sub
 
    Private Sub salvageTextBox_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles salvageTextBox.Enter
        salvageTextBox.SelectAll()
    End Sub
 
    Private Sub salvageTextBox_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles salvageTextBox.TextChanged
        scheduleTextBox.Clear()
    End Sub
End Class

Ha ha .....to calculate the double declining balance
' depreciation and use a string concatenation to add the year and depreciation
' to the output text box.


Now I can write a for next statement but with string concatenation how would one do this

[Killer42]

Can you be more specific about exactly what you want help with? Are you simply asking how to concatenate two strings, or what?

Try to keep it brief - most people don't want to read through pages of code to try and find what it is that you want.

[vijaydiwakar]

just point and explain the error area
rather than giving a complete code

[kellysgirl]

write a For .... Next loop here to calculate the double declining balance
' depreciation and use a string concatenation to add the year and depreciation
' to the output text box.


This is what I am trying to do but I am not understanding how to do this with string concatenation

[Killer42]

write a For .... Next loop here to calculate the double declining balance
' depreciation and use a string concatenation to add the year and depreciation
' to the output text box.


This is what I am trying to do but I am not understanding how to do this with string concatenation

For a start, you cannot use string concatenation to calculate the value. Concatenation is just the action of sticking things together in a string. The idea here is that once you have calculated your depreciation value, you will stick it together with the year. For example:
strSomething = "Year:" & intYear & " Depreciation: $" & curDepreciation

From the sound of the question, I'd recommend you try hard to work your way through this, rather than expecting TheScripts to provide you with a complete program. To quote our policy as described in the FAQ...

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Please read the Posting Guidelines and particularly the Coursework Posting Guidlines.

Then when you are ready post a new question in this thread.

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[kellysgirl]

I am not expecting for anyone to supply me with anything. I just wanted some to point me in the right direction. I am new at this but clearly some people on here have forgotten how that feels. That is fine. I have figured it out, thanks.

[Killer42]

I am not expecting for anyone to supply me with anything. I just wanted some to point me in the right direction. I am new at this but clearly some people on here have forgotten how that feels. That is fine. I have figured it out, thanks.

No, it's not that we've forgotten. We've just had a lot of trouble with people posting school assignments. We've even had professors in here taking us to task for giving out answers.

And really, if students copy and paste their questions, then copy and paste answers from here, it's not helping anyone. So we have to try to keep this sort of thing under control.