Calculated cell in GridView

[gchq]

Using both static data and data from some GridView cells I am attempting to calculate a result in a Template Cell - but to no avail!

The value for TextBox1 is brought in on the page_load event and I'm attempting the balance of the calculation uisng the ItemDataBound event :-

 
Protected Sub GridView1_ItemDataBound(ByVal sender As Object, ByVal e As DataGridItemEventArgs)
        If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then
            Dim vInterest As Single = TextBox1.Text / 100.0#
            Dim vRate As Single = 1.0#
            Dim vRemLife As Single = e.Item.Cells(3).Text
            Dim vCostAv As Single = e.Item.Cells(4).Text
            Dim vNum As Integer
            For vNum = 1 To vRemLife
                vRate = vRate * (1 + vInterest)
            Next vNum
            Dim vInsert As Single = Format(vCostAv * vRate, "###.##.0.00")
            e.Item.Cells(5).Text = vInsert
        End If
 
 

But the calculated cells are always empty at run time! Any ideas what where I'm going wrong?

[Killer42]

Have you stepped through the code to make sure it's doing what you expect, and when you expect it?

[gchq]

Have you stepped through the code to make sure it's doing what you expect, and when you expect it?

I re-jigged it - and now it works :-)

 
Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
        If e.Row.RowType = DataControlRowType.DataRow Then
            Dim vInterest As Single = TextBox1.Text / 100.0#
            Dim vRate As Single = 1.0#
            Dim vRemLife As Single = Convert.ToSingle(DataBinder.Eval(e.Row.DataItem, "Rem_Life"))
            Dim vCostAv As Single = Convert.ToSingle(DataBinder.Eval(e.Row.DataItem, "Cost_Av"))
            Dim vNum As Integer
            For vNum = 1 To vRemLife
                vRate = vRate * (1 + vInterest)
            Next vNum
            Dim vInsert As Single = vCostAv * vRate
            Dim vInsert2 As String = Format(vInsert, "###,##0.00")
            e.Row.Cells(6).Text = vInsert2
        End If
    End Sub
 
 

[Killer42]

Ok. Glad to see you've resolved it.