Computing Average FIGURED OUT

[twisted]

I have two text boxes that are blank until I click a btnCalculate.
I need to get an average of those two text boxes. The text boxes are named SP = txtSalepersons.Text and TS = txtTotalSales.Text
I need to get the TS / SP. But when I write:

txtAverageSales.Text = TS / SP

it doesn't work because the first time there are no values to average. After the first time it works like a charm b/c values are in the box.

So basically the first time I click it I just want it to display TS and then after the first time display TS / SP. Please help, I think I might need an if then statement.

[taxes]

Hi,

If your posted code works, then you are using VB6.

This is the VB.NET section.

[Carnifex]

'Put this inside the button code
 
If txtSalesPersons.Text.Trim <> ""
 
'Check that both boxes are numeric
      If IsNumeric(txtAverageSales.Text) = True And IsNumeric(txtSalepersons.Text) = True Then
 
           'Check that the Salespersons box is not 0 as you cannot divide by 0
 
            If Decimal.Parse(txtSalepersons.Text) = 0 Then
                  Messagebox.Show("Cannot divide a number by 0, salespersons box cannot be 0.")
            Else
                   txtAverageSales.Text = CStr(Decimal.Parse(txtTotalSales.Text) / Decimal.Parse(txtSalepersons.Text))
            End If
      Else
           Messagebox.Show("Both values must be numeric.")
      End If
Else
 
     If IsNumeric(txtAverageSales.Text) = True Then
 
           txtAverageSales.Text = txtTotalSales.Text
     Else
          Messagebox.Show("Enter a numeric value for average sales")
     End If
End If

I am assuming by your code that there is something in the TotalSales text box the first time you click as in your description you said the first time you click it, it will display the Total Sales.

The important part to you is the very first line which checks if there is anything in the salespersons textbox. The other stuff is largely included to validate the information in the text boxes.

You will probably also want to format the number when it computes the average as it could potentially display alot of significant figures. e.g. 1 /3 could be 0.33333...

[twisted]

This is good, but totally not what I needed. Here is a link to show you what I am building..

WHAT I AM BUILDING

Now my problem is Average Sales. I just thought it was Total Sales divided by Salespersons. Which it is, but the first time I click Gross Pay it shows NaN in my Average Sales box. I think this is because it is trying to divide values that are not there yet. But the second time I hit Gross Pay it works fine because values are already there. How do I get it to return the value you enter in Sales Amount (since the first time Total Sales is the Sales Amount and Totals Sales / 1 salesperson is the same number.

[taxes]

HI,

Us a simple If..Then clause

If SP=0 then 
  SP=1
  txtAverageSales.Text = TS / SP 
  SP=0
else
  txtAverageSales.Text = TS / SP 
End If

[twisted]

Originally posted by taxes
HI,

Us a simple If..Then clause

If SP=0 then 
  SP=1
  txtAverageSales.Text = TS / SP 
  SP=0
else
  txtAverageSales.Text = TS / SP 
End If

That didn't work for some reason, but Yes that is basically what I am trying to do. Here is the code I have for the btnClick:

' Set up constants for Base pay(BP) = $500 and commission(CM) is 6%
    Const BP As Double = 500.0
    Const CM As Double = 0.06
    ' Set up variables for sales, gross pay, salespersons, total sales, 
    ' and average sales.
    Dim SA, GP, SP, TS, AV As Double
 
 
    Private Sub btnGross_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnGross.Click
        ' name abbreviations
        SA = Val(nudSales.Text)
        SP = Val(grpSalespersons.Text)
        TS = Val(grpTotalSales.Text)
        ' Compute value and display in Gross Pay
        GP = BP + SA * CM
        txtGross.Text = Format(GP, "$#####0.00")
        ' Compute value and display in Salespersons
        grpSalespersons.Text = (SP + 1).ToString
        ' Compute value and display in Total Sales
        grpTotalSales.Text = (SA + TS).ToString
        ' Compute value and display in Average Sales
        
    End Sub

I don't have anything for Average Sales b/c I can't figure it out!

[twisted]

Originally posted by taxes
HI,

Us a simple If..Then clause

If SP=0 then 
  SP=1
  txtAverageSales.Text = TS / SP 
  SP=0
else
  txtAverageSales.Text = TS / SP 
End If

This is what I had to do to get it to work right, but thanks for getting me on the right track.

If SP = 0 Then
            grpAverageSales.Text = (SA).ToString
        Else
            grpAverageSales.Text = ((SA + TS) / (SP + 1)).ToString
 
        End If

[taxes]

Hi,

Yep. My mistake, I copied it from my VB6 file instead of my VB.NET.

BUT looking at your other threads, if you included code to increase your grpSalespersons.Text ( and SP) by 1 every time you confirmed the extra sale and before you computed the average sales, you would do away with this step altogether.

[twisted]

Thanks once again my VB savior!