Programming Forums > Application Development > C++

VBuser · Jan 17th, 2007, 9:31 AM

Hi! Plz help anyone!!! I wrote this program from a visual basic .net book. It works fine but when i wanna write the same program using visual c++ .net code i get errors. Im using Visual studio.net 2003

(Toggle Plain Text)

   Private Sub ExitButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitButton.Click
        Me.Close()
    End Sub


    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim intHours, intAllow As Integer, sngRate As Single
        ' display hours worked
        For intHours = 1 To 50
            Me.HoursList.Items.Add(intHours)
        Next intHours
        'display pay rates

        For sngRate = 6 To 12 Step 0.5
            Me.RateList.Items.Add(Format(sngRate, "standard"))
        Next sngRate

        'display witholding allowances
        For intAllow = 0 To 10
            Me.AllowList.Items.Add(intAllow)
        Next intAllow
        'select default item in each list box
        Me.HoursList.SelectedItem = 40
        Me.RateList.SelectedIndex = 0
        Me.AllowList.SelectedIndex = 0


    End Sub

    Private Sub CalcButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles CalcButton.Click
        Dim intHours As Integer
        Dim sngRate, sngGross, sngFWT, sngFICA, sngNet As Single
        'assign selected items to variables
        intHours = Me.HoursList.SelectedItem
        sngRate = Me.RateList.SelectedItem

        'calculate gross pay
        If intHours <= 40 Then
            sngGross = intHours * sngRate
        Else
            sngGross = 40 * sngRate + (intHours - 40) * sngRate * 1.5
        End If
        'calculate FWT
        sngFWT = GetFwtTax(sngGross)
        'calculate fica tax
        sngFICA = sngGross * 0.0765
        'round gross pay, fwt and fica tax
        sngGross = Math.Round(sngGross, 2)
        sngFWT = Math.Round(sngFWT, 2)
        sngFICA = Math.Round(sngFICA, 2)
        'calculate net pay
        sngNet = sngGross - sngFWT - sngFICA
        'display calculated amounts
        Me.GrossLabel.Text = Format(sngGross, "currency")
        Me.FWTLabel.Text = Format(sngFWT, "currency")
        Me.FICALabel.Text = Format(sngFICA, "currency")
        Me.NetLabel.Text = Format(sngNet, "currency")
    End Sub

    Private Function GetFwtTax(ByVal sngWeekPay As Single) As Single
        Dim intAllow As Integer, sngTaxWages, sngTax As Single
        'assign number of witholding allowances to a variable
        intAllow = Me.AllowList.SelectedItem

        'calculate taxable wages
        sngTaxWages = sngWeekPay - intAllow * 55.77
        'determine marital status then calculate FWT
        If Me.SingleRadio.Checked = True Then
            Select Case sngTaxWages
                Case Is <= 51
                    sngTax = 0
                Case Is <= 552
                    sngTax = 0.15 * (sngTaxWages - 51)
                Case Is <= 1196
                    sngTax = 75.15 + 0.28 * (sngTaxWages - 552)
                Case Is <= 2662
                    sngTax = 255.47 + 0.31 * (sngTaxWages - 1196)
                Case Is <= 5750
                    sngTax = 709.93 + 0.36 * (sngTaxWages - 2662)
                Case Else
                    sngTax = 1821.61 + 0.396 * (sngTaxWages - 5750)
            End Select
        Else    'marriedradio is selected
            Select Case sngTaxWages
                Case Is <= 124
                    sngTax = 0
                Case Is <= 960
                    sngTax = 0.15 * (sngTaxWages - 124)
                Case Is <= 2023
                    sngTax = 125.4 + 0.28 * (sngTaxWages - 960)
                Case Is <= 3292
                    sngTax = 423.04 + 0.31 * (sngTaxWages - 2023)
                Case Is <= 5809
                    sngTax = 816.43 + 0.36 * (sngTaxWages - 3292)
                Case Else
                    sngTax = 1722.55 + 0.396 * (sngTaxWages - 5809)
            End Select
        End If
        'return FWT
        Return sngTax
    End Function

    
    Private Sub ClearLabels(ByVal sender As Object, ByVal e As System.EventArgs) _
            Handles NameTextBox.TextChanged, HoursList.SelectedValueChanged, _
            RateList.SelectedValueChanged, AllowList.SelectedValueChanged, _
            MarriedRadio.Click, SingleRadio.Click

        Me.GrossLabel.Text = ""
        Me.FWTLabel.Text = ""
        Me.FICALabel.Text = ""
        Me.NetLabel.Text = ""
    End Sub

    Private Sub NameTextBox_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles NameTextBox.Enter
        Me.NameTextBox.SelectAll()
    End Sub

End Class

   Private Sub ExitButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitButton.Click
        Me.Close()
    End Sub


    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim intHours, intAllow As Integer, sngRate As Single
        ' display hours worked
        For intHours = 1 To 50
            Me.HoursList.Items.Add(intHours)
        Next intHours
        'display pay rates

        For sngRate = 6 To 12 Step 0.5
            Me.RateList.Items.Add(Format(sngRate, "standard"))
        Next sngRate

        'display witholding allowances
        For intAllow = 0 To 10
            Me.AllowList.Items.Add(intAllow)
        Next intAllow
        'select default item in each list box
        Me.HoursList.SelectedItem = 40
        Me.RateList.SelectedIndex = 0
        Me.AllowList.SelectedIndex = 0


    End Sub

    Private Sub CalcButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles CalcButton.Click
        Dim intHours As Integer
        Dim sngRate, sngGross, sngFWT, sngFICA, sngNet As Single
        'assign selected items to variables
        intHours = Me.HoursList.SelectedItem
        sngRate = Me.RateList.SelectedItem

        'calculate gross pay
        If intHours <= 40 Then
            sngGross = intHours * sngRate
        Else
            sngGross = 40 * sngRate + (intHours - 40) * sngRate * 1.5
        End If
        'calculate FWT
        sngFWT = GetFwtTax(sngGross)
        'calculate fica tax
        sngFICA = sngGross * 0.0765
        'round gross pay, fwt and fica tax
        sngGross = Math.Round(sngGross, 2)
        sngFWT = Math.Round(sngFWT, 2)
        sngFICA = Math.Round(sngFICA, 2)
        'calculate net pay
        sngNet = sngGross - sngFWT - sngFICA
        'display calculated amounts
        Me.GrossLabel.Text = Format(sngGross, "currency")
        Me.FWTLabel.Text = Format(sngFWT, "currency")
        Me.FICALabel.Text = Format(sngFICA, "currency")
        Me.NetLabel.Text = Format(sngNet, "currency")
    End Sub

    Private Function GetFwtTax(ByVal sngWeekPay As Single) As Single
        Dim intAllow As Integer, sngTaxWages, sngTax As Single
        'assign number of witholding allowances to a variable
        intAllow = Me.AllowList.SelectedItem

        'calculate taxable wages
        sngTaxWages = sngWeekPay - intAllow * 55.77
        'determine marital status then calculate FWT
        If Me.SingleRadio.Checked = True Then
            Select Case sngTaxWages
                Case Is <= 51
                    sngTax = 0
                Case Is <= 552
                    sngTax = 0.15 * (sngTaxWages - 51)
                Case Is <= 1196
                    sngTax = 75.15 + 0.28 * (sngTaxWages - 552)
                Case Is <= 2662
                    sngTax = 255.47 + 0.31 * (sngTaxWages - 1196)
                Case Is <= 5750
                    sngTax = 709.93 + 0.36 * (sngTaxWages - 2662)
                Case Else
                    sngTax = 1821.61 + 0.396 * (sngTaxWages - 5750)
            End Select
        Else    'marriedradio is selected
            Select Case sngTaxWages
                Case Is <= 124
                    sngTax = 0
                Case Is <= 960
                    sngTax = 0.15 * (sngTaxWages - 124)
                Case Is <= 2023
                    sngTax = 125.4 + 0.28 * (sngTaxWages - 960)
                Case Is <= 3292
                    sngTax = 423.04 + 0.31 * (sngTaxWages - 2023)
                Case Is <= 5809
                    sngTax = 816.43 + 0.36 * (sngTaxWages - 3292)
                Case Else
                    sngTax = 1722.55 + 0.396 * (sngTaxWages - 5809)
            End Select
        End If
        'return FWT
        Return sngTax
    End Function

    
    Private Sub ClearLabels(ByVal sender As Object, ByVal e As System.EventArgs) _
            Handles NameTextBox.TextChanged, HoursList.SelectedValueChanged, _
            RateList.SelectedValueChanged, AllowList.SelectedValueChanged, _
            MarriedRadio.Click, SingleRadio.Click

        Me.GrossLabel.Text = ""
        Me.FWTLabel.Text = ""
        Me.FICALabel.Text = ""
        Me.NetLabel.Text = ""
    End Sub

    Private Sub NameTextBox_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles NameTextBox.Enter
        Me.NameTextBox.SelectAll()
    End Sub

End Class

Arevos · Jan 17th, 2007, 10:23 AM

Quote:

Originally Posted by VBuser

It works fine but when i wanna write the same program using visual c++ .net code i get errors.

It usually helps to mention (a) what the errors are, and (b) show people the code causing the errors. How on Earth is anyone meant to tell what's wrong with your program if you don't show the source code or what errors occurred?

melbolt · Jan 17th, 2007, 10:57 AM

I hope you know this but...

C++ .NET is not VB .NET
big syntax difference there

just a few examples (semicolons, no "dim", etc, etc)

you're pretty much going to have to re-write the whole thing if you want to run it in C++.

VBuser · Jan 17th, 2007, 11:11 AM

Quote:

Originally Posted by melbolt

I hope you know this but...

C++ .NET is not VB .NET
big syntax difference there

just a few examples (semicolons, no "dim", etc, etc)

you're pretty much going to have to re-write the whole thing if you want to run it in C++.

I do know but i wanted the code for c++ .net cause i get errors when coding the calcbutton event

ReggaetonKing · Jan 17th, 2007, 11:50 AM

Then post your code you wrote in C++ and we will do our best.

pegasus001 · Jan 17th, 2007, 11:53 AM

Have you imported the right libraries. Because if you did everything should work fine. It is not difficult to translate between .NET languages. But you must know something else, if you want to compile the code in visual studio you must compile it with /clr(in the console) or enable the clr in the project options.

VBuser · Jan 18th, 2007, 12:42 PM

Well its not a console appliction, its a windows form app. And if u look at the VB code at the top, the calcButton event at the for loop, by trying to write the same thing with c++ code, it gives errors

(Toggle Plain Text)

int hours 
for(hours=1; hours<=50; hours++)
{
	this->HoursListBox->Items->Add(hours);
}

it gives error C2664: c:\Documents and Settings\fe\My Documents\Visual Studio Projects\Payroll\Form1.h(366): error C2664: 'System::Windows::Forms::ListBox::ObjectCollection::Add' : cannot convert parameter 1 from 'int' to 'System::Object __gc *'

DaWei · Jan 18th, 2007, 1:14 PM

The error message is pretty clear. Check the prototype for Add and explicitly convert 'hours' to an object of that type. You might consider resorting to your help files, using the term, "C2664". Just a thought.

Arevos · Jan 18th, 2007, 1:23 PM

I haven't done much work with the C++ .NET interface, but you probably have to do something like:

(Toggle Plain Text)

System::Int32 hours;
for(hours=1; hours<=50; hours++)
{
	this->HoursListBox->Items->Add(hours);
}

lectricpharaoh · Jan 19th, 2007, 1:19 AM

You might need to explicitly 'box' the int. I'm not sure if VC++ boxes and unboxes stuff automagically, whereas C# does (which has good and bad sides). Try casting it to System::Object first, like so:

(Toggle Plain Text)

this->HoursListBox->Items->Add((System::Object)hours);

@Arevos: If managed C++ is like C#, the int type is probably an alias for System.Int32, so the changed definition would be unnecessary in that case (and fail to resolve the problem). Still, I suppose it's worth a shot, as I don't know if managed C++ behaves this way (never used it; if I'm gonna write managed code, I'll stick to C#, using C++ for native code).

Jan 17th, 2007, 9:31 AM	#1
VBuser Newbie Join Date: Jan 2007 Posts: 3 Rep Power: 0	Plz Help - Visual Basic .net/visual C++ .net Code Hi! Plz help anyone!!! I wrote this program from a visual basic .net book. It works fine but when i wanna write the same program using visual c++ .net code i get errors. Im using Visual studio.net 2003 (Toggle Plain Text) Private Sub ExitButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitButton.Click Me.Close() End Sub Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim intHours, intAllow As Integer, sngRate As Single ' display hours worked For intHours = 1 To 50 Me.HoursList.Items.Add(intHours) Next intHours 'display pay rates For sngRate = 6 To 12 Step 0.5 Me.RateList.Items.Add(Format(sngRate, "standard")) Next sngRate 'display witholding allowances For intAllow = 0 To 10 Me.AllowList.Items.Add(intAllow) Next intAllow 'select default item in each list box Me.HoursList.SelectedItem = 40 Me.RateList.SelectedIndex = 0 Me.AllowList.SelectedIndex = 0 End Sub Private Sub CalcButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles CalcButton.Click Dim intHours As Integer Dim sngRate, sngGross, sngFWT, sngFICA, sngNet As Single 'assign selected items to variables intHours = Me.HoursList.SelectedItem sngRate = Me.RateList.SelectedItem 'calculate gross pay If intHours <= 40 Then sngGross = intHours * sngRate Else sngGross = 40 * sngRate + (intHours - 40) * sngRate * 1.5 End If 'calculate FWT sngFWT = GetFwtTax(sngGross) 'calculate fica tax sngFICA = sngGross * 0.0765 'round gross pay, fwt and fica tax sngGross = Math.Round(sngGross, 2) sngFWT = Math.Round(sngFWT, 2) sngFICA = Math.Round(sngFICA, 2) 'calculate net pay sngNet = sngGross - sngFWT - sngFICA 'display calculated amounts Me.GrossLabel.Text = Format(sngGross, "currency") Me.FWTLabel.Text = Format(sngFWT, "currency") Me.FICALabel.Text = Format(sngFICA, "currency") Me.NetLabel.Text = Format(sngNet, "currency") End Sub Private Function GetFwtTax(ByVal sngWeekPay As Single) As Single Dim intAllow As Integer, sngTaxWages, sngTax As Single 'assign number of witholding allowances to a variable intAllow = Me.AllowList.SelectedItem 'calculate taxable wages sngTaxWages = sngWeekPay - intAllow * 55.77 'determine marital status then calculate FWT If Me.SingleRadio.Checked = True Then Select Case sngTaxWages Case Is <= 51 sngTax = 0 Case Is <= 552 sngTax = 0.15 * (sngTaxWages - 51) Case Is <= 1196 sngTax = 75.15 + 0.28 * (sngTaxWages - 552) Case Is <= 2662 sngTax = 255.47 + 0.31 * (sngTaxWages - 1196) Case Is <= 5750 sngTax = 709.93 + 0.36 * (sngTaxWages - 2662) Case Else sngTax = 1821.61 + 0.396 * (sngTaxWages - 5750) End Select Else 'marriedradio is selected Select Case sngTaxWages Case Is <= 124 sngTax = 0 Case Is <= 960 sngTax = 0.15 * (sngTaxWages - 124) Case Is <= 2023 sngTax = 125.4 + 0.28 * (sngTaxWages - 960) Case Is <= 3292 sngTax = 423.04 + 0.31 * (sngTaxWages - 2023) Case Is <= 5809 sngTax = 816.43 + 0.36 * (sngTaxWages - 3292) Case Else sngTax = 1722.55 + 0.396 * (sngTaxWages - 5809) End Select End If 'return FWT Return sngTax End Function Private Sub ClearLabels(ByVal sender As Object, ByVal e As System.EventArgs) _ Handles NameTextBox.TextChanged, HoursList.SelectedValueChanged, _ RateList.SelectedValueChanged, AllowList.SelectedValueChanged, _ MarriedRadio.Click, SingleRadio.Click Me.GrossLabel.Text = "" Me.FWTLabel.Text = "" Me.FICALabel.Text = "" Me.NetLabel.Text = "" End Sub Private Sub NameTextBox_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles NameTextBox.Enter Me.NameTextBox.SelectAll() End Sub End Class Private Sub ExitButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitButton.Click Me.Close() End Sub Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim intHours, intAllow As Integer, sngRate As Single ' display hours worked For intHours = 1 To 50 Me.HoursList.Items.Add(intHours) Next intHours 'display pay rates For sngRate = 6 To 12 Step 0.5 Me.RateList.Items.Add(Format(sngRate, "standard")) Next sngRate 'display witholding allowances For intAllow = 0 To 10 Me.AllowList.Items.Add(intAllow) Next intAllow 'select default item in each list box Me.HoursList.SelectedItem = 40 Me.RateList.SelectedIndex = 0 Me.AllowList.SelectedIndex = 0 End Sub Private Sub CalcButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles CalcButton.Click Dim intHours As Integer Dim sngRate, sngGross, sngFWT, sngFICA, sngNet As Single 'assign selected items to variables intHours = Me.HoursList.SelectedItem sngRate = Me.RateList.SelectedItem 'calculate gross pay If intHours <= 40 Then sngGross = intHours * sngRate Else sngGross = 40 * sngRate + (intHours - 40) * sngRate * 1.5 End If 'calculate FWT sngFWT = GetFwtTax(sngGross) 'calculate fica tax sngFICA = sngGross * 0.0765 'round gross pay, fwt and fica tax sngGross = Math.Round(sngGross, 2) sngFWT = Math.Round(sngFWT, 2) sngFICA = Math.Round(sngFICA, 2) 'calculate net pay sngNet = sngGross - sngFWT - sngFICA 'display calculated amounts Me.GrossLabel.Text = Format(sngGross, "currency") Me.FWTLabel.Text = Format(sngFWT, "currency") Me.FICALabel.Text = Format(sngFICA, "currency") Me.NetLabel.Text = Format(sngNet, "currency") End Sub Private Function GetFwtTax(ByVal sngWeekPay As Single) As Single Dim intAllow As Integer, sngTaxWages, sngTax As Single 'assign number of witholding allowances to a variable intAllow = Me.AllowList.SelectedItem 'calculate taxable wages sngTaxWages = sngWeekPay - intAllow * 55.77 'determine marital status then calculate FWT If Me.SingleRadio.Checked = True Then Select Case sngTaxWages Case Is <= 51 sngTax = 0 Case Is <= 552 sngTax = 0.15 * (sngTaxWages - 51) Case Is <= 1196 sngTax = 75.15 + 0.28 * (sngTaxWages - 552) Case Is <= 2662 sngTax = 255.47 + 0.31 * (sngTaxWages - 1196) Case Is <= 5750 sngTax = 709.93 + 0.36 * (sngTaxWages - 2662) Case Else sngTax = 1821.61 + 0.396 * (sngTaxWages - 5750) End Select Else 'marriedradio is selected Select Case sngTaxWages Case Is <= 124 sngTax = 0 Case Is <= 960 sngTax = 0.15 * (sngTaxWages - 124) Case Is <= 2023 sngTax = 125.4 + 0.28 * (sngTaxWages - 960) Case Is <= 3292 sngTax = 423.04 + 0.31 * (sngTaxWages - 2023) Case Is <= 5809 sngTax = 816.43 + 0.36 * (sngTaxWages - 3292) Case Else sngTax = 1722.55 + 0.396 * (sngTaxWages - 5809) End Select End If 'return FWT Return sngTax End Function Private Sub ClearLabels(ByVal sender As Object, ByVal e As System.EventArgs) _ Handles NameTextBox.TextChanged, HoursList.SelectedValueChanged, _ RateList.SelectedValueChanged, AllowList.SelectedValueChanged, _ MarriedRadio.Click, SingleRadio.Click Me.GrossLabel.Text = "" Me.FWTLabel.Text = "" Me.FICALabel.Text = "" Me.NetLabel.Text = "" End Sub Private Sub NameTextBox_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles NameTextBox.Enter Me.NameTextBox.SelectAll() End Sub End Class

Jan 17th, 2007, 10:57 AM	#3
melbolt Professional Programmer Join Date: Feb 2005 Location: PA, USA Posts: 253 Rep Power: 4	I hope you know this but... C++ .NET is not VB .NET big syntax difference there just a few examples (semicolons, no "dim", etc, etc) you're pretty much going to have to re-write the whole thing if you want to run it in C++. __________________ I have never let my schooling interfere with my education. -Mark Twain- Xbox live gamertag: melbolt

Jan 17th, 2007, 11:50 AM	#5
ReggaetonKing Sexy Programmer Join Date: Nov 2005 Location: New Jersey Posts: 891 Rep Power: 4	Then post your code you wrote in C++ and we will do our best. __________________ I would love to change the world, but they won't give me the source code!

Jan 17th, 2007, 11:53 AM	#6
pegasus001 Hobbyist Programmer Join Date: Nov 2006 Location: 163H Posts: 215 Rep Power: 3	Have you imported the right libraries. Because if you did everything should work fine. It is not difficult to translate between .NET languages. But you must know something else, if you want to compile the code in visual studio you must compile it with /clr(in the console) or enable the clr in the project options. __________________ You never test the depth of a river with both feet. The believer is happy. The doubter is wise. Free speech carries with it some freedom to listen. The next generation will always surpass the previous one. It`s one of the never ending cycles of life.

Jan 18th, 2007, 12:42 PM	#7
VBuser Newbie Join Date: Jan 2007 Posts: 3 Rep Power: 0	Well its not a console appliction, its a windows form app. And if u look at the VB code at the top, the calcButton event at the for loop, by trying to write the same thing with c++ code, it gives errors (Toggle Plain Text) int hours for(hours=1; hours<=50; hours++) { this->HoursListBox->Items->Add(hours); } int hours for(hours=1; hours<=50; hours++) { this->HoursListBox->Items->Add(hours); } it gives error C2664: c:\Documents and Settings\fe\My Documents\Visual Studio Projects\Payroll\Form1.h(366): error C2664: 'System::Windows::Forms::ListBox::ObjectCollection::Add' : cannot convert parameter 1 from 'int' to 'System::Object __gc *'

Jan 18th, 2007, 1:14 PM	#8
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	The error message is pretty clear. Check the prototype for Add and explicitly convert 'hours' to an object of that type. You might consider resorting to your help files, using the term, "C2664". Just a thought. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Jan 18th, 2007, 1:23 PM	#9
Arevos Programming Guru Join Date: Aug 2005 Location: England Posts: 1,499 Rep Power: 5	I haven't done much work with the C++ .NET interface, but you probably have to do something like: (Toggle Plain Text) System::Int32 hours; for(hours=1; hours<=50; hours++) { this->HoursListBox->Items->Add(hours); } System::Int32 hours; for(hours=1; hours<=50; hours++) { this->HoursListBox->Items->Add(hours); }

Jan 19th, 2007, 1:19 AM	#10
lectricpharaoh Caffeinated Neural Net Join Date: Jun 2005 Location: Wet west coast of Canada Posts: 1,126 Rep Power: 5	You might need to explicitly 'box' the int. I'm not sure if VC++ boxes and unboxes stuff automagically, whereas C# does (which has good and bad sides). Try casting it to System::Object first, like so: (Toggle Plain Text) this->HoursListBox->Items->Add((System::Object)hours); this->HoursListBox->Items->Add((System::Object)hours); @Arevos: If managed C++ is like C#, the int type is probably an alias for System.Int32, so the changed definition would be unnecessary in that case (and fail to resolve the problem). Still, I suppose it's worth a shot, as I don't know if managed C++ behaves this way (never used it; if I'm gonna write managed code, I'll stick to C#, using C++ for native code). __________________ And once again, Probability proves itself willing to sneak into a back alley and service Drama as would a copper-piece harlot. - Vaarsuvius, Order of the Stick

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Plz Help - Visual Basic .net/visual C++ .net Code